MANUAL MONITOR Preliminary OCT. 1984 PN-314004-01 · 1200 Wilson Drive, West Chester, Pennsylvania 19380 U.S.A. Commodore makes no expressed or implied war ranties with regard to

( ::

SERVICE MANUAL

MODEL 1701 /1702 MONITOR

Preliminary

OCT. 1984 PN - 314004-01

SERVICE MANUAL

MODEL 1701/1702 MONITOR

Preliminary

OCT. 1984 PN-314004-01

Commodore Business Machines, Inc. 1200 Wilson Drive, West Chester, Pennsylvania 19380 U.S.A.

Commodore makes no expressed or implied warranties with regard to the information contained herein. The information is made available solely on an as is basis, and the entire risk as to quality and accuracy is with the user. Commodore shall not be liable for any consequential or incidental damages in connection with the use of the information contained herein. The listing of any available replacement part herein does not constitute in any case a recommendation, warranty or guaranty as to quality or suitability of such replacement part. Reproduction or use without expressed permission, of editorial or pictorial content, in any matter is prohibited.

This manual contains copyrighted and proprietary information. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Commodore Electronics Limited.

Copyright © 1984 by Commodore Electronics Limited. All rights reserved.

CONTENTS

Title Page

SPECIFICATIONS 1

SAFETY PRECAUTIONS ......................................................................................... 2

ADJUSTMENTS

PURITY ...................................................................................................... 4

CONVERGENCE ........................................................................................... 5

WHITE BALANCE ........................................................................................ 5

B1 VOLTAGE, FOCUS, VERT. & HOR. ADJ. ................................................... 6

SUB TINT, SUB CONTRAST, COLOR SYNC, 3.58 MHz TRAP ........................... 7

BLOCK DIAGRAM ................................................................................................. 8

CIRCUIT NOTES

VIDEO CIRCUIT ........................................................................................... 9

AUDIO CIRCUIT .......................................................................................... 10

COLOR DEMODULATION CIRCUIT ................................................................ 11

CHROMA OUTPUT CIRCUIT ............ .......................... .............. ........ ............. 12

CONTROL CIRCUIT ...................................................................................... 13

H. OSC., V. OSC. & V. OUT CIRCUIT ............................................................ 14

HORIZONTAL OUTPUT CIRCUIT ................................................................... 15

POWER CIRCUIT ......................................................................................... 16

TROUBLESHOOTING GUIDE

NO RASTER, NO SOUND (B 1 NORMAL) ........................................................ 17

NO RASTER, NO SOUND (B1 ABNORMAL) .................................... ................ 18

NO RASTER, NORMAL SOUND ..................................................................... 19

NO SOUND, NORMAL PICTURE .................................................................... 19

SINGLE HORIZONTAL LINE, NORMAL SOUND ................................................ 20

IMPROPER HORIZONTAL OR VERTICAL SYNC ............................................... 22

iii

CONTENTS (Continued)

Title Page

1701 PARTS LIST .. ............................................................................................... 23

1701 BOARD LAyOUT......... ................................................................................. 30

1701 SCHEMATIC NOTES ..................................................................................... 31

1701 SCHEMATIC ................................................................................................ 31

1702 MODEL IDENTIFICATION ........................................ ........................ ............... 32

1702 PARTS LIST ................................................................................................. 33

1702 BOARD LAYOUT .......................................................................................... 40

1702 SCHEMATIC NOTES ..................................................................................... 41

1702 SCHEMATIC ........................................... ..... ................................................ 41

1702T BOARD LAYOUT ........................................................................................ 42

1702T UNIQUE PARTS .......................................................................................... 43

1702T SCHEMATIC .............................................................................................. 43

iv

GENERAL DESCRIPTION

C1701/C1702 COLOR MONITORS PRODUCT SPECIFICATION

The C1701 and C1702 are quality, high resolution color monitors, designed to maximize the video capabilities of your Commodore Computer. They give you a superior color picture that enhances your computing experience and are completely compatible with all Commodore equipment.

SCREEN SIZE

13 Inch (screen measured diagonally). NTSC color standard

DISPLAY

40 Columns x 25 lines

RESOLUTION

1000 Characters per screen

CONTROLS

Color, tint, brightness, contrast, volume, vertical hold and horizontal hold

AUDIO

Built-in audio amplifier and speaker

INPUTS

Chrominance, luminance, composite video and audio

OTHER FEATURES

Video cassette recorder compatible (1 V p-p, 75 Ohms)

COMPUTERS

Commodore 64, VIC 20, Plus/4 and C16

POWER REQUIREMENTS

120 Volts, 60 Hz, 0.85 Amps

POWER CONSUMPTION

87 Watts

All specifications subject to change without notice.

1

SAFETY PRECAUTIONS

1. This product contains special designed circuits and components that were designed for safety purposes.

For continued protection, changes should not be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only.

2. Alterations to the design or circuitry of this receiver should not be made. Any design alterations or additions will void the manufactuer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in MONITOR sets have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the parts list of this service manual. Electrical components having such features are identified by shading on the schematics and by (*) on the parts list in this service manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the parts list may create shock, fire, or other hazards.

4. If any repair has been made to the chassis, it is recommended the the B1 setting be checked or adjusted (See ADJUSTMENT OF B1 VOLTAGE).

5. The high voltage applied to the picture tube must conform with that specified in this service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and possible component damage, therefore operation under excessive high voltage conditions should be kept to a minimum, or should be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause by visual inspection (incorrect installation, cracked or melted high voltage harness, poor soldering, etc.). To maintain the proper minimum level of soft X-Ray emission, components in the high voltage circuitry including the picture tube, must be the exact replacements or alternatives approved by the manufacturer of the complete product.

6. Do not check high voltage by drawing an arc. Use a high voltage meter or a high voltage probe with a VTVM. Discharge the picture tube before attempting meter connection by connecting a clip lead to the ground frame and connecting the other end of the lead through a 1 OkO 2W resistor to the anode button.

7. When service is required, observe the original lead dress. Extra precaution should be given to assure correct lead dress in the high voltage circuit area. Where a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the manufacturer's replacement components.

2

SAFETY PRECAUTIONS (Continued)

8. ISOLATION CHECK (SAFETY FOR ELECTRICAL SHOCK HAZARD)

After re-assembling the product, always perfrom an isolation check on the exposed metal parts of the cabinet, screwheads, cable jacks, controls shafts, etc., to be sure the product is safe to operate without danger of electrical shock.

(A) DIELECTRIC STRENGTH TEST

The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any exposed metal part having a return path to the chassis should withstand a voltage of 1, 100V AC (r.m.s.) for a period of one second.

This method of test requires test equipment not generally found in the service trade. *

(8) LEAKAGE CURRENT CHECK

*

Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check). Using a "Leakage Current Tester", measure the leakage current from each exposed metal part of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any leakage current must not exceed 0.5mA.

ALTERNATE CHECK METHOD

Plug the AC line cord directly into the AC output (do not use a line isolation transformer during this check). Use an AC voltmeter having 1,000 ohms per volt or more sensitivity in the following manner. Connect a 15000 10W resistor paralleled by a 0.15JLF AC-type capacitor between an exposed metal part and a known good earth ground (water pipe, etc.).

Measure the AC voltage across the resistor with the AC voltmeter.

Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.35V AC (r.m.s). This corresponds to O.5mA AC (r.m.s.).

CAUTION:

When troubleshooting, with power applied, use an isolation transformer and confirm that the CRT earth wire is connected to the CRT socket board and the chassis.

3

ADJUSTMENTS - PURITY, CONVERGENCE AND WHITE BALANCE

PICTURE TUBE The picture tube is a precision in-line gun type. For this picture tube, dynamic convergence is carried out by a precision deflection yoke which eliminates the use of a convergence yoke and a convergence circuit. The adjustment of the picture tube is therefore made easier as only the adjustment of static convergence by using a magnet is enough. The deflection yoke and purity/convergency magnets assembly has been set at the factory and requires no field adjustments.

However, should the assembly be accidentally jarred or tampered vyith, some or all adjustment may be necessary.

COLOR PURITY & VERTICAL CENTER Loosen yoke retaining clamp (Fig. 2-1). With a sharp knife, cut between the picture tube and the wedge. Remove wedges completely and clean off dried adhesive from the picture tube. PAINT is used to lock the tabs of the purity/ convergence magnet assembly in place (Fig. 2-1). The paint must be removed with the end of a screwdriver before any adjustments are attempted.

1. Inject a Video Signal (RASTER) to the Video input terminal.

2. Let the purity tabs come in line horizontally as is shown in Fig. 2-3. A long tab should be in the same direction as the other short tab.

3. Move the yoke slowly backward. 4. Tum the green cut-off control to maximum and the red

and blue cut-off controls to minimum. Then adjust the screen control so that the green band can be seen best. (Fig. 2-4)

5 . Rotate the two tabs in the opposite direction with them kept at an angle. Move them in either direction so that the green band is centered on the picture tube.

6 . Check the vertical center position by displaying a horizontal line. If incorrect, bring it to the center by rotating the two tabs, kept at an angle, together in either direction. (Fig. 2-5, 2-6)

7. Repeat steps 5 and 6 alternately until the green band and the vertical centre are in line.

a. Move the yoke slowly towards the bell of the tube so that the whole surface of the picture tube is filled with a pure green raster.

9. Turning the red cut-off control to maximum and the green cut-off control to minimum, check for pure red raster.

10. Turning the blue cut-off control to maximum and the green cut-off control to minimum, check for pure blue raster.

11. Secure yoke retaining clamp (do not install wedges at this time).

YOKE LOCKING RING PURITY

MAGNETS (mark "P") Fig. 2-1

(REAR VIEW)

LONG AND SHORT PROTRUSIONS

Let the protrusions come in line Fig. 2-3

(FRONT VIEW) _--c..-;?""7f'7':7"T-..L GREEN BAND

CENTRE Bring the green band to the centre. Fig. 2-4

(FRONT VIEW)

HORIZONTAL LINE ,~..... f ' .. /:.....

VERTICAL CENTRE (identified with a

'--- white notch)

Bring the horizontal line nearest to the white notches shown in the dotted circles.

, , , I

."

Fig. 2-5

(TOP VIEW)

RDG .

l~J,--___ --, Select the cut-off service switch from N to S. and a horizontal line will appear.

Fig. 2-6

4

STATIC CONVERGENCE & DYNAMIC CONVERGENCE

Static convergence is achieved by four magnets located on the neck, nearest the base of the picture tube. The front pair of magnetic rings (closest to the purity tabs) are adjusted to converge the red and blue crosshatch lines. The rear pair of convergence rings (closest to the base of the picture tube) are adjusted to converge the magenta (Red/Blue) and green crosshatch lines.

Dynamic convergence is achieved by tilting the deflection yoke, Up-Down and Left-Right.

1. Inject Video Signal (CROSSHATCH) to the Video input terminal and adjust BRIGHTNESS and CONTRAST control for distinct pattern.

2. Adjust the convergence around the edges of the picture tube tilting the yoke, up-down and left-right. Temporarily install one wedge at the top of the yoke. (Fig. 2-9, 2-10, 2-11)

3. Rotate the front pair of tabs as a unit to minimize the separation of the red and blue lines around the center of the screen. To adjust the convergence of red and blue, vary the angle between the tabs.

4. Rotate the rear pair of tabs as a unit to minimize the separation of the magenta and green lines. (Fig. 2-8)

5. Adjust the spacing of the rear tabs to converge the magenta and green lines.

6. Apply paint to fix 6 magnets. 7. Remove the wedge installed temporarily on the yoke. 8. Tilting the angle of the yoke up, down and sideways,

adjust the yoke so as to obtain the circumference convergence. (Fig. 2-10, 2-11)

9. Insert three wedges to the positions as shown in Fig. 2-12 to obtain the best circumference convergence.

10. Secure wedges in position with the adhesive backing provided or use a non-conductive silicon/rubber compound.

11. White balance adjustment (Black & White tracking) can now be performed.

WHITE BALANCE ADJUSTMENT (Black and White Tracking)

1. Inject a Video Signal (RASTER) to the Video input terminal.

2. Set the red and green drive controls for their mechanical center.

3. Turn the red, green and blue cut off controls and the screen control fully counterclockwise.

4. Change the service switch as shown in Fig. 2-6, to the "S" position.

5. Turn screen control slowly clockwise until a very faint horizontal line appears.

6. Turn the cut off control of the color which has appeared first, clockwise by about 10° and then adjust the screen control again so that the color may shine faintly.

7. Turn the other color cut off controls slowly clockwise until a reasonable white line appears.

8. Return the service switch to normal (N) position. (Fig. 2-6)

9. Adjust the red and green drive controls for best white highlights.

(FRONT VIEW) (FRONT VIEW)

RED AROUND l) BLUE

r GREEN \ AROUND~ CENTRE ~ MAGENTA CENTRE .' . ' ,

Fig. 2-7 Fig. 2-8

(REAR VIEW)

(l)WEDGE

DEF. YOKE

Fig. 2-9

(FRONT VIEW)

BLUE

r ;\1.< BLUE -_." I "" RED

GREEN-~,,~'----~I~--~:~_'~-GREEN RED - ,." ,;'-- _BLUE

>+~, BLUE GREEN RED

Tilting the yoke upward will move the lines as shown with the arrows.

Fig. 2-10

(FRONT VIEW)

Tilting the yoke upward will move the lines as shown with the arrows.

Fig. 2-11

(REAR VIEW)

ANODE CAP

Fig. 2·12

5

NOTE: 1702 locations in ( ).

8 1 VOLTAGE - Inject a video signal

1701 (110V)

Regulate VR, R109, for B1 adjustment so that Dc voltage between TP-91 and earth is 110 volts.

1702 (125V.)

Confirm that the voltage at TP-94 and IC901 pin 4 is 125 volts.

NOTE: Meter should be periodically calibrated at 20K ohms/volt.

FOCUS

Adjust the FOCUS control for best overall definition and picture detail at normal brightness and contrast.

VERTICAL POSITION

Adjust the V. center VR R428 (R429) to the optimum vertical picture position.

VERTICAL HEIGHT AND LINEARITY

1. Display a pattern which allows easy confirmation of symmetry (such as a circle or crosshatch). 2. Reduce the vertical size with the V. HEIGHT VR. 3. Adjust the vertical linearity with the V. LIN. VR. 4. Readjust the vertical height, so that the picture extends to normal size.

HORIZONTAL WIDTH

Adjust H. WIDTH control coil L503 (L522) by turning it with a hexagonal adjusting bar only if RIGHT and LEFT sides of picture can't be seen.

HORIZONTAL OSCILLATOR

1. Set the H. FREQ. VR to the mechanical center position. 2. Connect a jumper clip between TP-33A and TP-33B. 3. While rotating the H. FREQ. VR, R504, keep the picture stationary or slowly moving. 4. Remove the jumper wire. 5. Make sure that the set maintains horizontal sync, when signals are switched.

6

SUB TINT AND SUB COLOR

1. Display a picture and set the tint and color VRs on the control panel to the central click position. 2. Adjust the sub tint VR, R305 and sub color VR, R303 for the optimum display.

SUB CONTRAST AND SUB BRIGHT

1 . Display a picture and set the contrast and bright VRs on the control panel to the center click positions. 2. Adjust the sub contrast VR, R209 and sub bright VR, R22 (R863) for optimum display.

COLOR SYNC

1 . Display a color video signal. 2. Connect jumper clips between TP-40 and earth (TP-E) and between TP-51 and IC301 pin 15

(TP-51 B). 3. Use a non-metallic screwdriver to turn trimmer capacitor C308. 4. Adjust so that the rolling color stripes become thick and the rolling slows or stops. 5. Remove jumper clips. 6. Confirm that color sync is not disrupted when signals are switched.

3.58 MHz TRAP

1 . Receive a Video Signal into the Video input terminal. 2. Connect oscilloscope probe to DL201 (Delay Line) output side. 3. Turn the core of T201 so that that 3.58MHz signal is minimized.

MINIMUM

7

e

AUDIO

Y (CHROMINANCE)

C

(LUMINANCE)

AUDIO VIDEO

L~ ~J r;:l F

R F

6 I

i-+81 0 ,....

I I

R -0 - .............. 1

;J SIGNAL SELECT S

R 0) 0 '-'

F

<"-~ "-

"

I

e

1701/1702 BLOCK DIAGRAM

!AUDIO AMP! It r-::UTPUT &. DRIVE

I I

3.58 f-"o 3.58 TRAP

SW TRAP

~ DELAY VIDEO BUFFER VIDEO AMP. &.

SYNC. SEPARATOR

I BUFFER l

BP AMP. KILLER

I CONTROL I iii i I i I I I I I I

I

VIDEO I Y AMP. I

1 SUPER SCREEN I CONTROL

COLOR

e

fll. r---c;

>< ~ irE r---I-C ::E

F: FRONT R: REAR BUFFER JSANDPASS}-

FILTER COLOR DE MOD. DIFFERENCE1 '---&. ETC.

(X)

POWER TRANSF:

LINE FILTER

&. FUSE

ACIN

I .1 VOLTAGE J

RECT. CONTROL -B1

I i

VERTICAL V. OSC &. V. AMP. I-- OUTPUT

~ ------------,..... H. AT C &. H. OSC

I HORIZONTAL HORIZONTAL t-- OUTPUT

DRIVE

I X-RAY prOTECTOR B1

roo--

V

I -- ---H

'----

HIGH VOLTAGE

I RECT.

CRT

Rial 150

r--- )( 3 ~2 ----, Buffer

-ope.n ; no color

: eo 0"" is .©~short} I . -@-®shart. fuint

C202 -----,

For sync. "",pli fie .... em Itt~r .5 )"nOoth i~

-ope It ~ fa. u It)' sync.

- R2.oI,R202,C2o3 Sync. sera n~tor

• !?ZOZ. cplU\ : fa~lt)'

I Dc,Rh~:~ I C2 \ I ---'-""'; C2.o4

Br-~ss Ac. couplil1'} condenser

-DL20I, R204 t>e.lQ.y of !u.tooi/1C1.l"\ce sitahGtI

~"ct Lo(\ct yesi~ tlU1C~ -t>l2o\ cp~n. : no pktel ~

" snort: ~hostin~ - R204 0f~t\ ~ Sc~en bq.col"neS~~~9.ht I

VIDEO CIRCUIT

-$hort : f""dtr sr(\~·

~ln'I\"tc!'Y t;~ -cansia.ht . In" \ Ope" J ,C203 ope". Srt1 c.. .c.2.o3c;hort

I -J. .& It 'open:I"lO picfClre -snun.: Ill" r

synchTohitat;on -ShoTt. :1"10 Y/1s1e r L204 ~-------~ F're<t."Eh'r chl1 yo. ¢teris tic.

13.6VX352 r--R-2-O-1 ---';"'--~-lL 201

ISOK 820

2SC16S5 ,2SCISI5(Y,GR) 6V BUFFER R202

t.aK R353

82

XIOI 2SCI685,2SCI959(Y)

CIOI RI02 VIDEO AMP 470/6.3 150

RI03 390

RI04 2 .2K

- -~/=

CI02

T~331 6.3 -

16VP-p

(VI

14V

C351 '---1.4-V-P-'p--' 101 16

~U' II ~ ~ X351

I C251 :=47/16 ~ r--+--~--+---~

/ ,IC20J / R207 L 203

/ HAI1401 6.aK 270

VI DEO a SYNC / SEPAl / R250 R251 10K 10K

OV

'-__ (e) ..... _T_1¥12_4 ..... 2'-""SCL.C.:.....16-""..S'-'-5_. 2_S_C......;I,--8I5_{ Y--,' IGR) .l. / BUFFER / .

---- X\O\ --~-~ Vic!eo amp.

·ope". } -®~ short :"0 pic.tl4re -@-@ short -@ -e S~ort: Screen is

dl1Tk

X351 ---':""'" Buffer

~;~: shoTt }:no c.olor ·~-~short

-@~ shert : color is faint

C20\ ----'---,

f\.c. co~pl;F\~

-open : 110 pidl.(re

·short : tal.\\ \ r synchroniZPot;on

r----- C 205" -'---, Differenti~1

(aperture compensation:

'mllinly preshooti j'~) ·open : imo.~t is shu rp

·short: screen ;,5

do.:rk.

Differentca.l (aperture cC'mP'!n~tion: lno.inly overshcotin~)

-~o'7 ope" } .<;2O'Topen : jma~e is

- "short soft

/ TC211 270

-

1

/'i:5 _~ '2C]~ DL201

,.....A.,f\IIr+--tlI--+-J

I R2r4 R203 2. K

IBK

C 20 4 ""T""...L \/ 3.3/50BP -:::- /,

COy~<:.t;ol"l.

-open. : imo.,e is soft

R206 ---, S.,.Al\kir1 pu.lse i" "";;. lesistQnce

-open :dark piduR

CIRCUIT NOTES,

Although specifically written on the 170 1 monitor, most circuit theorlea apply to the 1702 alao. Refer to the 1702 schematic for differences In c0mponent values and IdentlflQatlon.

R206/ I r-__ ~ __ ~ ____ ~3A·3~K ____ ~~ R210

! 330

270 __ --

R209 SUS '"I I K CONTRA~

I X250 -,.-___ 2SCISI5 (Y,GR)

SWITCHER T201 3.S8MH Z TRfo?

6Vp.p

rvL (HI

X202 --------------~ Vide.o a,mo.

I

- R2.IO Men l ·R 2.1' O~i'\ j : rtO ra.ster "R2t2 c~"- } rIO pldu.~ ·x20Z ~:HI>skt: :s...-reen is Ilbnortnally

~-0ShCft hri'3ht I»"Id flybaCk @-®Short} line Cll'pears_

• X202 ODE!f1 : no YQS ter I

R2.0~ .R2.0'/, R223,c2/o ----,

Emitter ';)(as and freb'.H?hC;.

chlll""cteristic con-ec. tiot\. • Rloe OP"'h} . ' C210 shOTt :no plctllTe

HA/l401 TROUBLE" SYMPTOM DF PRESIJME ...

X2~D -----.., Switche.r

·©-@short:color error

'@ -@ short: sc reel'l b~cctneS briqht and

vertical stripes

T201 -----., 3 .SRMHt tro..p co\1

-Optm. no pic tl4Te

-shoTt: 3.!;RMliz trap dot interference

-110 Tas.ter . no sou"d

.ho picture

-sc.reen is too Fn'i~h t

• SCree.n is dark

'multI sync.

. raster is brl~ht Clhd

flyback line ar~Qy".s

• \ma~e ~ua.\;ty is

un sa. tis-Factory

I

9

"R65D,C651 1hp'4 to 'n!s~s tClttce

unci condehser

C6~2

,.-- "R(,!)! ,R6S2 Bias l'eSisto.hCe.

·open: sound levei becc lY\es h i'jh

F R6IS-~ n!Si~l1lnce ~

C6~D

Noise ab-;orb

·shot"t :hO SOUI\Q

I -I

.---- R607, C60q ----, N~t;ve teed ha.ck 'resistClhce

(.612. DC c.u.t cOhde.I'ISIt.'f"

. open: sound level becomes hi~h

Boc~;, conde.nser

~6DS',c608 Coupli~ TeSls~n~

and cOhdenser'

'F-bOS" O~} ·c.oo& open :no sound. • II shari

.c?~n : no souhd

ColO ---r

Couriil\l cohd~sel'"

'opel"' : no ')ound

T602 --...... Audio ou~~-t tT"(lhsf.

·open: no sound

"Rbi 1 ------,

BillS Y~stl1l\ce ·o~: 1"\0 Sl!l.Incl

1)601 ---, L.Ft diode ·open: sound !eve I

becomes low

R607 ISOK \

C609 .015 200V MY -

C60S .OI5MY \C610

..--;---;-""Arr--; i--+---+-----"W'r-i . 4 7150 8 P

R617 470K

R615 47K..l.-

~606 .018MY R603

~ 68 ~

~R61a 1" iaOK R6J2 ~ 2.2K

RG04 IK

\

IC601 HAIII07l AUDIO

"R6D2, R604

R608 220K

R609 6.8K (V X601-

R610 ........ 560 L7 ~ "='" -,

GC:- 4000A --1 r (M.\8 FR6011 (J (00 I

112FRI I I

t + l C613 . 14.711601 I or

R61'T. Rbl8 ---,

Outfl4t voH-C\~e di"idih~ rec;istc~hce

.J 101l6~

fa 81 IIOV

,...--- c6ob~-.... R603,C60S"

Filter "Dc. 'Input condense.r

CbI4.C6IS -------"1 Noise absorb

To,,~ ~uQ.lj ty c.orrection

. short: Y\.O SCUtlQ 'R603 cpen :no sound ·R{,o2 open:sound level becomes

hi~. VR does hot function.

'RbD4 (lpen: sound Ie. vel becomes 10 w.

. (;614 short: soul'\d level becomes hiljh. VR does hot fundio/\.

.c bll,; ~rt: sound ic.; not Cl",dible unless VR is "turned at

least ho.lf way.

AUDIO CIRCUIT

XboZ .X603 -------., Audio out ·open:sound level becomes

low and lacks bass.

R613. R614 ---~ BOola t\c~ fesistllnc.e • open: sound leve.l beComes

low and lacks bass

;<601----. AudIO c!ri ve

·open ~: 1\0 $Qohd ·short 1

FR601. cbi3 ---,

FilteY'

. FF-(,o\ open: noSouM

CIRCUIT NOTES

Although specifically written on the 1701 monitor, most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences in component values and identification.

10

• 1'10 piduye

T30i ---, BP take~off transf.

,---- c302 Br-~~ conQenser .open: colD\" beccmcs

$rk 'short; no color

R!oi---., Dumpi~ ~is~nce

"open :c%Y error

4Vp-p

C303 N:.c smoomlnj • open : no ~clor

R3,-3 Emmire~ ~ ... -tGn~1e

- C30 4-Cou~in3 Cl)ndens~r

.open: hD coloy

"sheet: no picture.

c30S --..., K i \l~ smocil\,'i . .:yw "\: ltO ~Ior 's~rt\

C304i:C305 180 -.45/50

R328 1M

R302.R303 Co\Oy c:orrec.tloh (bleeder feS'StllllC~)

color i~ 'R3Dl open: faint

'R303 nDf!Tl: color is ·r _ .. dink

R304, R3DS, R322 tl\'\t c.orrectlon.

(bleeck.r ..-n\S~)

·R304 ore"': Yec:\ ro.steY' be.comes lnDihel11'o...

'R:30!) 'f"'l Hed bf.CDtneS "ftl,,,t. ~ beCCl'les bi ... e \:)ecomes vic,e.,-.

·R311. ~ : titlt VR doeS !\Of: fu nc-U on

R.321 .-____ AAr...rIK ___ _

+ 10.7V C 316 z:::

10116 I ~

/

I

R316 221<

·only tnDl1Ocln·omAtic.

·no ccioY, edDY -fad~ away

·no monochroma.tic..

+.d- IC301 HAII247 B.P AMP, ACC,KI TINT, APC, VCO a COLOR OEM

I .' · fnultr tint

"c.cicr no;SE!

• cclor el'"rcr

. faulty color sync.

. czlcr beat

·dc. ..•

.----c306 Diff4e~n"ti4TeS,'5rnc. si~ ",,\, a,"'cl

clela.ys fho.o;e of- pllise. 'OI'en : r-o"coloY

. short : 1'0 pIC tttYl!.

dark yaster

TP~5°1 I ~ 0301:!: I

S2473H ~5~6 C306 180 T ~ ~

0302_. ER, 1 S 2 47 3 H ,-c~r-...:.::I 5::.:.1.:.55:,:5::.,

0303-0308 W06-A,W06-8,151555 R310

L351 330 ~~-+----------~~.-~

or 1512473

22 0307 I R311 330 I ~----------~------.-~~-+-~

0306 I I R312 3301 G~53--~~~I~~~I--r-~I-~

R314 22 :. ~ • J30g 2.2K ~ -:- ..!...

R322 ~ 10K

030'1, R307.R30!i'-L.----. For phase shOt ft

C310,C311,C312 ---,

'By" p'l~'" condl!nser

-- D 30 I .---I.~-,

Foy noise prevention

.shon:: c:oloY' errOl"

'C30'7 short :5C~n bec..::m'!s bei'.1ht \:I."t ho ccjOl"

'00'7 opt'll } obtain~ "R307 open :no color "R301? cpen

(ootp'lt "IT;.. ba.se-~TCu.ncied with T6rect to \U7'O\i"o."c:e sl'y,a.I)

. <:310 shan' no caree.n Y'IsteY

. C311 shcrt: hO red ro.S teY

·c312. short: no bilAe. ra.s!er

130 I. c 30 &>,R3o'7, c309 -3.s8MH~ filhr

·'('3ot o~n ,';hoT"t }

·c308 op~" :tlO colo ... 'R30'1 open

'C 3017 ope ... , sho~t

G3\3,C 314, R3\3. R~\4

APC s",ooth~,,:}

'C313 Shod} .c314 shOTt :1\0 color

. R 3 i4- open.

~- L351,L31>2. L3S3

t\ ;,h t"re:tu'!n"ff: It ~Y"

· L?S \ opQ.n: ydlcw fictu.re

· L ~52 ~ :cpM;c.richll't.

· L3S"3"~" :m<l1"~l\ta ftC. tun~

COLOR DEM. CIRCUIT

"f..301.R315;1~3 1.6. R3f'7 R3i'iLR321,C316

Su.~r-scene ccnh-ol

'R~15 open.

"R 316 open Got\t~st 'R31'T oru' becomes .R32\ open weo.k ·(.31b short ·xaot open

CIRCUIT NOTES

Although speciflcally written on the 170 1 monitor, most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences In com-ponent values and Identification.

D302.---..., Be"'" I:",iter diode . short : br;~h+et1.

R310,R3i \,R3i2 ----,

Ie pl"t'tection reSistor

'R310 "pet: yellow i';ct ...... e

'R311

·R312. cpen: cyanic p;cture open. : 1Tla.'Jhent~ t

1 pIC ure

D303 ....... D308

Roted,on. of Ie frt,.,,, CRT SFl'ki"~

·E>303 short: bllA4e picture

"i) 304 short: · .... ed pIC Tt.U'e

,-£)30 S short: ~reet'\ fic rure

1 1

CHROMA OUTPUT CIRCUIT

~ RI23,RI'2.2.RI24 ___ .....

X\ot ~~ . bl",e ©~ShOTt yo.ster

®~short no blu.e

ope.n Yo..steY"

RI2S',RI26.RI2.'1

u,r.a.t YeSistanc.e of base

'RlZS oren : ho b",\e raster

·~1'2.6, open.; no ~~e!l. r~ster

-RlzCf open! \10 ye.d rtlstl!:r

"R12.1. RIO'L Rill

D-r,ve adju5tm€:.nt

·RI2.1 opm: no biue Y'Ct5ter

'Rlo9 0pen;ho red raster

'RII! open: i'\o ~l"een raster

x 10Z XI03 Rill, R1I3 . RI14 ----. RIIS.Rllb,RII'1---. L103.Llo2., LI04

nd ~reen Olltput Tr colle.ctor ioad resister CRT cathod 'reSistor and Tesist.:>'" for j'l'riecti~ DI1tputTr frD'" CRT sparki"

'RII S' open: no blu.e. 'r11"5te.r

FYe'!uency chayt\c.terlst;c. To-ster

no red Yo..ster

'raster

110~ree.n.

'(llSter

RI21 150

• R,ll L open: SCTeen of bll.le · RII:3 open :SCfecn of red

• R 114 opel1 :sc.reen of ~\'~ert

. RII b open: no red Ytlste.l"

.RII'7 open: no ~reen yaster

iCRT SOCKETi

I

I J

I

VOl

: 370ES822(£ ) or

I 370FV822(E) RI02 RII6 I ,

_5KB 3.3K RII2 ~ Rlf7 112S 12K 2W ..... --+-+0....,.---.

3.3KI/2S I 158V {160Vl ;~ ~.~'R2

XI02 RI13 19~1 fr~ RED OUi'2K 2W ; r"l !~ ..." I (;r:- I ~lI.

RI031K i ~ LJ "'1.-._-Rloa " R CUT OFf) (H) ~ "=

~-__ .JW\,--+--J 180 RI14 J-'I f:rQ~ I, l ~l~~ 12K 2W L-.J -AC150

LJ,JVv-__ --I-~-,..,........:....--X-1 0 .... 3--" I (H)

RI05 GREEN OUT 7L'0' IK 180

r-...... ""'N~~IG CUT OFFI ~ RtlO 180 RI06 n+ GE-3000A

;;:;::;:::::::::;"t~"'fv..~'-.....J 5 K B z: C 10 I T I'" DRIVE! l~~I:'a _'. ~ !0I250;._R.,1~~~ET I

RWT. Rlo8, Rlf 0 Cl0 3.CID4,C{o$'

R(OLRI03, RIDS' Rlo2,Rto4, Rlob H B s",ooth,n~

co t'rl!.cti on.

t:",m~ter 'I"e sisto. hel!. 1: ",,,,ite O(esistol'\c.e .oreh :sct\!en IS bY~ht

a.nd dr'll~s ta: I ftl Yi~ht.

Ltol ------------~

K1h fre~ll~ncr ·filter

·open: screen IS bri~kt: o,l'\d dya~5 t",i j to

y;~ht , F9uencT ChClYnderiS1ic. cor~tjol1.

'Rlo'1 open; ho b (<.Ie y(\ ster

'RI~ open: no -red rQster

'~1I0 open : no 'jr-eel'\ raS ter

·C10..3 short :screen cf bi",e $O.turate

·clo4 sJ..ort :screen of red Slltl4yat~

'C IDS' s~rt :screen of ~reen SAtu.rate

Cut off a.djustrnent

·RIO I open O} weo..l-en ° Rlo2. open . i>lu~ r~ster

• i<. 103 ~1. W'ea.ket\ 'RI04open r yec{ ra.ster

'RloS opo!l\l wea.ken ·R.lo6 opo::tt f; ~re.et1 raster

CIRCUIT NOTES

Although specifically written on the 1701 monitor. most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences in component values and identification.

12

R04tRO~ Colo.,. contT'ol

'Ro~ 'fen: COLOR VR does not functlon.

Rot.R02.R03 Tint c.chhol

'ROI open} . L.~_ I • red IJ<;YJIY\4t s

'ROl!fen . ,,"Q~entct

ROb. RO'7.KD& Cmb-a.st CDhtrcl 'Ro'! open ;VR does hot

functiol\ when c.ontrast is stT'O~

RO'i.RIO _.----, BI'!eaer 'rl!~istlln(e 'RO~ 'fen: no raster ·RIO epe" : scree", becomes

abnOT"lhllily bT'i~ht.

-RII.RIZ.RI3 ----,

B"r i':}ht c..Jntto\ • RII opel\:screen beCDmes

s\;~htly do;rk. 'R13 open :BRICX:HT VR

does not func.tion.

;~:~~~~=i<C~O~L~O~R~):~~~C~O~N~T~)~~~~.~r-~--~--__ ~ 3

~~~ ~ RC4 \ ROa R09 ~~K / ('-V-CL-U-M-E) IOK8 5.6K 470

(8RIGHT) 3

RI6

CONTROL

RK- ,RIS" ----------. V. Hol<l control . Rlf ore" : when 1/. HOLD VR is

turned to ""'(lX, vert\cal oscillatio n beco/lll$

minimlAIn (approl(. 3cm)

Rib. R2~ -----, H. Posit;Oh cllrltrol

I ~ "'-R03 R02 IOK8

RI2 IOK8

Rt4 6.8K

5008 l'-~H ·Rlb Q)open: f~L4ltl

hoYizDr 10.1 sy'f\c. B2K (TI N r ) (V. HOLD)

R23 1.51<

1l I ,

R2: 4.7K Ria

~ ISU88RIGHTI 1.8K

RI9

::~ ____________________ ~/~ ________ -+ __ 2_._2_K~ RZO 470

12V

.GE-4000A

I I I ,

R21 2.:"1( CONTROL:JCB '. A'SSY .

~ :

L __ R22. 'K23 - ..... 1-.....

Su.b byi<j.hl: c:.onhol

R23~:no raster

- R\~.Rlq, R20.R2\ ---'-...., Bleeder 're<>istarlce

• F: \~ ope;,} screen bec.omes . P.l'1 open ;sli~htll da.rk. 'R20 o~n : coloy is faint. ·R2.1 0Fn.: screen becomeS

sli~.htl)' bri~ht.

CIRCUIT NOTES

Although specifically written on the 1701 monitor. most circuit theories apply to the 1702 also. Refer to the 1702 achernatic for differences in component values and identification.

13

r--- C402.VertiCllI osc.lllcrtor

condenser 'll,pett}:OI'Ily sit'l'jle ·shOrt horizontoJ line

r---R403.R404 ---------, r- v40S V~'rtic(ll oscIIIa.tor bia.s circ.uit A nsoYb of Q, bhOYm~( 'R403 open: only Si~1e horizontcll lihe. V()1+~<je -R.40+OP~": when 'J HOLD VR is ttlrhed.. V.BLK

I H. OSC, V. OSC & V. OUT CIRCUIT I r- R416,C40~ . R4Ig

r-- CS'OI ---~==:::::~"'--I b~Qck bo.hd ""ill a.ppeo.\"', o.nd scree" .--R402., C40S --.:/------_-, r FR4-0i • cA-!'? ----..... r--I¥.'-IS ___ --:

:~l~ ~P:::~~Znt~o.b\liu: .flicmi"1 lhh!~.,.a.tin~ drcuit R414 , hC40g Base biaS -resiSto.hce For 1o.l<.e-off V. BLK pulse

Fo\'" pTeventin'.} verticil! sync s~1\Q1

. open : iUulty harizontai sync. Vee.. Sl'J\Ctk''':f ·c~s short} :falll+-.. " 'FI~401 Of'!1\ } •• vertieo.l o.m~itl4de 'open :'Jertico.l runpiitude

;- R40i.D402 ,C403-1/ (veT tical sy,..c si~nlll nice-off) SMoot ~~ of X40/

·R41b open} :flyback Ii he appeo.rs, ·C40Q open

. short ! picture is shift to l"i'aht.

~C40\

:i)-402.siIotil.0hlr si"SI~ .c40S 0rel\:when VHGL'P VR is tu.rned flllly 'R41+ of'\!'" i .. smo.lI. <approx. 2 C1rl) o.hd stat.jhzatiol'\ / .c4-04 open " Vtrt,cal srnc• is Slna.U •

.c~3shortJh.,rizont41 ri<Jht, it is possible to fold b(lck (o.~rcx. 1.J;;c1n) /

'R418 open: screeh becomes

sii~htly bri~ht

Condenser for p~ven1i~ verticD.l amplifier oscilliti"3 '--"-T' ___ '_in_e_---' o.t Cl stnctl( alllpIitude(apprDx. ho.lf) 1

1 1- I,' r ../ I r ~A" ,. A ~A / I X4fO©'

-81'-11~0-V~\+---/~-----~C~4~0~3~i.~-/iR;4;!8~~;2-i~-~c~J~o~~:y7~-41~J=2='=O=V=p=-=p==~~=~a~8=v=p=-=p=~---------~~~~~vF~R~4~ ~~ ~w ~~ / I ~:~ 45~ IOO/~~R401 .033 lill JLJL 68FR IWOMR IW'OMR _1

LC402 ~+ ~402 h ~ V DC 2W ";-C412 +C408 T.~1;~9Io0V MY - I I +n'i-

1061'

=-C501 lID ~2.2/1~~ r~* "'~ltOy4 ~ ~11 (v) ---a.3V (V) R2il~ .:c_ 3.3/16o<ZlZ14.7/50 1 Iii :!:1I.420 .001 C4011 TANTAL + RDO"(C) / / s- D40li \0 112;5

~~O ~IO.I. # ~I- R411 22K I + ~~b~16 ~ J I rv:?OSiTiONl IS2473H. ~ -" TANTAL # ~ 0405~ zt:C407 t;:-13----~~'--tl--""=-D:-S:-0+k;~w"':'0"':'6-.A:-------·'-___ L:

1

-+L-~~:!:':.~/2.~B~5~0~K~-~1 X402r V

~v ,#'#.. R405 _I"'" 1 ~~~~7 R036E l 1,3.3/50 680 -.l .. ",,+ I ~~s C411 1 22~41~1 ri R4!2 1 O.SV

4V IV \ 3.6V 6.7V I/V~~:p: 5V !0.5V 12K IV.LINj , ~ """ \ 1s~;m; 47116, 'v l~~F 100llSO '(opnCN) ~ ~ 5.5K = I 2 3 4 5 6 7 8 +~'i2 \~R471 T503! ?1--....... r..-----4~.!:.....--4J~_:r4--~i~----:---+I .... • ...... -";:>'-!W!....l.<OM!Z!R!:l..-

, - .... C406 2208 '- -$R40a ~681/2w SIDE PIN TRANS!~+-l---+I---------,::-::-:-:::+---~~---i,f------r-L---'---'j I ?200 'V (OPTION' I -- I R4 19I,.., Iv. AMP .1 J V.OSC I -=?".082MY R410 2.2K 112S~\r-,-~~--t-----

RS29 R403 ~ R:~9~ eMF "SInOQthil1~ c.ondenser for DC vclta~e h~atjve :> ~6.a IW, C401]' --------____ ......

100 J ,d 4.7K - ~" . I l't d' I feedback PHASE OET H.OSC WAVE FORME.., IC50' ,--=---, ·open:vertICCl o.lIIP' u e IS Sinai (o.pprox. 6 em)

IV. HEIGHTI .short:only Sinale horiLonta.1 line , HAII244 J

16 15 14 13 12 /I 10 9 H.AFC, .-R40S -......... r-R410 ________ --.

TP -338 12.2V 6.6V 3V ~~6 6.6~I2.SV 1.8V ~. °V.SOCS C X 5 ° I I Discha~e resistor f::r vertical AC c.urrent detection resistor

_4.7K R ~O 5 osc.illo.ticncondenser -open : only sinjl~ horiz:onta.1 !,he ... .-~ \¥-y.J1 ~ 7.5K O.3V '54. 2\/ 'open:only Sif\~le hcyiLcntal lin~. (hcriLc1na.1 lin~ is kicks upward

• _ _ (imo.se appears at lOP haif of RS02 C508 ,y I>"" SCTl!.en at ,nlends of aOc<lt in a.bout 1. second)

~.,."..,. .... 6 a K .0056 I _ // one sec.ond) CS04~t'"" :~ ?P 0.8Vp-p ~ /

C503 1150 + C505 ri ,...,.-, (~R506 ..-L-R40'T ----------, .015MY -~.... ,~3l R 503 I I ! I I • 560 I Resistor foY AC current, ~ xsol __ --,

II.aK I 1"1.> I~...J I i \1 _ neSlltive feed ba.CK --- • dy-ive R501 ~ 1/4 CMF ? r---' ·op~l'l: top haif oniy of sc.reen is 1-!01'Izchtai

TP<r-.33A 5.6K"?- [>-R504 '- (H) ed Ah}' I --... etCp.sSively E!\o"'So.t .ap' : no yastet-

47K ............... -short no sound HI. ~

C506 m: MY, I ...... HOYizohtal asci II" t;on e\ e""ehi-331161 'Y st r

cs IS, CSI'l . CSQi', TS03 ----.,

Fonno.tion ,rr ~YQ.bolic wdve (side pit' cotnllensa.tion)

'(;SI'> o~" \ :cnly s;I\Qlt verticall'he '1'S03Snurt J d

·C.Slrt ~n l.:hociz.onto.l a.mplitu.de shrinks , ·Tso3.;V~ 5 -eSI'I J.cd, :t,,\, po.rt of screen is rnissit'lq,

~D;06 I P-revention of capacitor d'ropout due to o.pplict\-tion of reverse polo.rity volto.~e to C51'1 and C5\8

+ 1+ ±\I.~?J JH.FREQjR35.90K8 lO~5~: OM;;-------...I_ -C~08',Rs-o:3,RS'04 1 ·c!>c)~ open : no n~ e ~12.7V 0701 I no sOIl ..... d

R701 HZ20'V, HA 11244 TROUBLE SYMPTOM OF PRESUME -

X701

- __ ~I§]

~ XfjO! -----, X - R.o.r ?I"tectc'r ' @-<W !ohortl.·f1D Taster .@-<f)sherd· no sound

-eso1. Rib .~ZS'~ ... tcoth wave phase

adjustment

-eSOt'! cpen ( : Imaqe shift • /I SI'orl to Idl

4.7K "") A~" I~R~02 1 .... " . R';03 H AFC outpllt i~ection resistor "$. + R704 ~ 41.2K iI.l. ·open :fo.llity horizonto.l sync. .. C701zz;:z 953K CS27 1/2CMF R527

100/6.31 *1·1. OOI5r11----. "#' ? CMF * ~5C5 L..c..... I';' 8,·A2,.K 1125

\ROI I (r::l) .,f,.t'_ --til )~ __ -4I>-t-+-j-----4'Vv'v-v- .-((52'1. CS2'7 ------,

~t .. -----. ~l~ • -- Pulse phase settih'J I ~ -RQ.'T ,)pen}: ;",o.~e shift

~ RIJ'OI ,R'703.R7o4 'C52!T open to ri~ht, SO~,Cso4, RSo/ - r-CSOS. RS'08 r- C'TOI, D'701 - ' <'5'2'7 sherI:: faulty hori:z:onlul

HAFe output vo\to.~e S~wt~th wo.tIe ~eJ1era10r Ab"OTmo.l B1 voltaqe Smeothi n~ circuit CirCUIt for comparison wave detection

C ... optn ·C~S.R5Dg O"""}. I h' 'I -R'1040p.!n 1.M ro.ster . >O'T l:f!1u.lty hO~;ZDnht( r'" :liW.tJ onZOIlTa . '~')Ol open 5 sync. elf top half. .c')os short sync. '0'101 short no sound

' C504- sl-Drl..: fo.ulty horizontal \

r-D!>05 Pulse ampiihlde \imitter .open : imo.~e shi ft to ri<jht

·short: fa .. lty horizcl'\t(l1 syt'IC.

sync:.

<. HoRIZONTAL C1RCtIlT>

· H. oscillo.t;on stop (ho ra.ster , no SO;Ji1'\)

· fa.uli,! H. SyhC .

· o.bhOYmo.\ H.oscillat'on

< VERTICAL CIRCUIT)

• V. Dsc.llo.t;ol1 stop

(sil'\~le. nOl'i:z:ohto.l 11he)

• fal.llty V. sync.

· fo.L.llty V. ampl; tu~e

· f~u.ltr v. i'heari+y

,-X4CI, D4CI, Noli' _...1..-__ ---,

Vertical output

'X401 open} .vertieCl! atnolitude is ,D401 shan : S' 1(- - ' , mil , ImQae (lpi>ears 'C4Cl/ short , J, r

below center of CRT_

CIRCUIT NOTES

Ahhough specifically written on the 1701 monitor, most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences in component values and identification.

14

HORIZONTAL OUTPUT CIRCUIT xo1

r\orizonto.\ outpu.t

-open: 1"0 y~ste.'r hO sound

C$12,C~J3,CSI4 C 530,C.531 ~ LS02,RSZ8

I HOl"iZDnta\ linearity Ic.orrect ion coi I a.nd Ido.mpil'\~ resistor

,.--- R~6,Rs-17 ---, For beam limiter detection

:- cSlq I R~26,cS-20 ;

Sh'\ooth ..... ~ T 5"0 \ ------,

\-\or il.O""o. \ dyive 1vo.nsf.

. open. 1- 1'10 yA steY" L rt . no SOU Y\d. 'sno

r--- COl -----.,

"Prevention of unwll"\,ted ,(Cldio:tion

Resohance condenser for FBT ·opel'\ : horizonta\ width

is small .\.Lt:102 op~n: sin<;Jle

vertical lin~

·optn.: scree" becomes

$\i~h'tly d~rk 'R~26 Of'eh :screen becomes

dQ.l"k

IMl I< 5"10, c. 1;"0 9

)(S"O\ collector pulse clipper(for protection)

(H)

C51: CSl4 ISOO 1500 1.5KV 1.5KV MPP MFP

MPP

C530 C512 I I J. I 510 1500 - - - - I 5KV 1. 5KVT TTTT . MPP ,

I I

1/160 +

T502 F8T

[,oii~----~T-i}---'--</<H'V II I II I I

ct;24,R~20.R~21 ---,

roY" tllkl~ off H.BLK puke

. C~4 O~I'\: top ric;}ht of screen is tnissih~

. RS20 open : tol' laft of . scree'" is tniSS\n~

6 ii i - -;- - _L.........r~.....;.-/-_-'I_~

II I 'IRS26 7 II IK 1125 ~

II I +I 12V II I C520~ :I ) lISOI

C531

IS~~/ il ~8P~

"-+-~--++--."""'--1 I-----'M I R520 R521 '~f

,..--- RSII --..<:....-,

l1orlz.ot\tal dyive colledor '010.5 supply a ",c\ fi Itey

·open: no "(~stey hO sound

C511 +147/160

.R511 • 6.aK, 5.6K or 4.2 K (S.2KK'S,2K PARALLEL>

ct;ll

S""oo\hi~

.open : ext~nc!s Up Qhd dow/'\ 5ii~ht{y

cS"23 , D~07. RS2~ Hori~ohto.l lihellrity

(.Onec t ion

1./

CSI5 ----., S-clArve correction .oren: sin~le vet'tica.\

line . • c:. S2 3 shorf; dl'ifts t o ri~ht

/

0507. 10K V09·E I 112

• 050:\

HF·I RF·I or UF·2

1-- _2

,----- 1) 5" 03 ----, BH volto.de reet; fica.r;on

.open : screen bec.omes o.bnormt4\1r 'oT'~ht o.hd rlyba.ck \;he o.ppeays.

I' 5.6K 1/25 39K II ,,---<.J....,. ,I II II

I II L ___ 3

I RI I

r--....l.-- R S 14 ---...., roy vertical lineqyity correction

.o~n : hoyiz.ontal w;dth

is slishtly smo.lL

16V

0504 UF--2 RGB-IOG VI9E RS ·1 RF·I

,..--'--- L 5"04 --CRT "eo-ter applied pulse value adj~stmet\t ·

.upen : no 'raster

RS22. £> ~o4 ----, Bl.(I'2.v) n~ctif;er and protec.ts DI:;04- nOh' • .

'rtAsh cu.ne'nt

·open }. no ra.ster ·short . 'nO si:lund

CIRCUIT NOTES

Although speciflcaHy written on the 170 1 monitor. most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences in component values and identification.

15

Xo2 "powe.r ye~1I.1 ~tor

.no<>.n : \-0,.; U>nto.\ width vr - -,s ~\'"I\a.I\

G-© shcrt : '!\O 'roster 'nO 50u.nd

RO\ ----,

"Dlvide'r 'resistor for pro~ctlh~

LOI

DEG. COIL

C10l,C\02,C\03 J fo,- protec.ti ~

Dlol'it:DI04

0101-0(04 ,cI04 ,CIOf(

B1.. rec.tification and srnoothi I'I~

Rlo4, Rlos Srnoothi","~

X02

.---- R 103 ---.. l'y~vel'ltlon of excessive

'l'Ifut TO -X \01

..---- XIO\ Reali. $lto'r d.,.ive

d hol"izorttQ.\ width • ~n. : .. s s~a."

2SC J tOGA or 2SCI454

~-<D) shan \. _ '110 ~stel'" ·e-® sh.:rt J . no sou ",d

~/.f ... __ POWER REGULATOR

RIOI PTH r----., , I

I I I

I I L ____ .J

0101 ..... 0104 ISI8S7A

CI02 .0 I

250 \AC

RI03 4.7 3W CMF

F901 1.25A

1I1V XIOI

IFRIOI .112 r:-' I FR 1 I : I I I I I

12SCI890A(E,F) REGULATOR RI 12 DRIVE S20K

~J

1 RI06 I, ISOK

2 + + ...... .:.-....... L-...... -JV I I RI04 I CIOS RI07 ~ ~IOK ~ 10/160 33K

RIOS 47K:t 1·1.

CI04 7 -=-ZW - 0105 'i:XI02 30IK"!:'·I.

~330/200 OMR RD6.8Ev12SC2688 CMFR

~~3!~~ 200 (K,L,M) , .1 = ERROR ~

Red

LOI, COl. C 02 L-Lne f,\te'('

(fo'( ?'(evC\t;n~

1I'''''llnted yadio.tion)

- AMP-.................

GE-9700A FUSE PCB ASS'Y

COl LO I .047 125V

~--~ I == I

N€UTRAL

FOI 4A 125V

HOT

IZOV 50HZ 160HZ

RI;3. C\OR, cqOb

£,(I'or de1ect1on

V()\tQ.~e filter

Rlob ----, ?ror~t;l'I~ XI02

)(102. ------..,

EYTor Il.".,p. ·O?~~1't }. 1\0 r(lst~ '@-<$short • no SOIolnd

·©-<?)sho,.t: }:hofi:Onfili width -©+)shol't .S sl\1(lil

f~\OS ----,

Cohee tel" bias resisro.~ce of X /oZ

'op~!n: 'no raster no soutHl

R WI ------, BiQ!> )'esisr~nce

of D IDS"

DIOS EpaI' volt~e

st"'hc:;{o:rd. Z'2l1er diod~

F:Z i 0 \ ------,

BOose Ir>put resiSTance of X/Of

·ope!"', :hQrizontQ! width

;5 small

POWER CIRCUIT

CIRCUIT NOTES

Although speclficaUy written on the 1701 monitor, most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences In component values and Identification.

16

TROUBLESHOOTING GUIDE

No raster, no sound (B1 is normal)

NOTE: 1702 locations in ( ).

[Cause] Horizontal deflection circuit

Problems in the horizontal deflection circuit hinder generation of high focusing voltage, BH 160V and B2 12V, resulting in no raster, no sound.

1. As long as normal BH 160V is generated, the horizontal output circuit properly operates, producing pulses during the flyback period of the saw-tooth wave current passing through the horizontal deflection coil. If a problem is found with normal BH voltage, the problem area should be the secondary coil of the flyback transformer.

2. When the AC voltage between base and emitter of the horizontal output transistor X01 (0522) is about O.SV, it is supplied with input pulses. The problem is therefore in the horizontal output circuit. When, however, X01 (0522) is shorted, this AC voltage is not indicated even if there are input pulses at X01 (0522).

3. AC voltage is measured between the collector and ground of X501 (0521) horizontal drive as shown. When the specified voltage is shown on the meter, the horizontal output circuit is the problem; while, when there is no voltage indication, the trouble is in some element(s) preceding X501 (0521). Check if those transistors and les are damaged using a voltage measurement.

C START

t Vc. VB at X701 (0501)

• ABNORMAL

I X-Ray protector

Check X701 (0501) + NORMAL

Is normal BH 160V generated?

NORMAL

+ + NO

IFailure in T502, L504 (T01, L523), Check Vc at X01 (0522) ABNORMAL (Trouble in horizontal or high voltage module horizontal output transistor output circuit)

• Approx. NORMAL ,

Check AC voltage between base & Check short or open of X01, 001, C512, C513, C514. C515 (0522,

emitter of X01 (0522) horizontal 0522, C526, C534, C535) output transistor

More than AC 50 V +OV AC _ 0.8V"'Trouble in horizontal output circuit

II

Check breakage of T501

I

Check AC voltage between Check T501 (T521) primary coil,

(T521) collector & ground of X501 r- R512,C510,X501, R503, R504,

(0521) horizontal drive R505, R508, C508, IC501 (0521, IC501, etc.)

17

No raster, no sound (81 is abnormal)

NOTE

1702 locations in ( ). The regulator PCB assembly used in 1702 models differs from the 1701 power PCB assembly. The B1 voltage circuits should be checked beginning with IC901.

[Cause]

Abnormal B1 voltage indicates trouble in the power supply circuit. When B1 voltage is not only low but also abnormally high, X701 (Q501) of the X-ray protector is turned on, setting the collector voltage to 0 V. The horizontal oscillator is then disabled resulting in no raster and no sound.

1 . When D 105, R 105, R 108, R 109 are open, the base voltage of X 101 and X 102 rise to increase B1 voltage to more than 130V. This causes the X-ray protector to work, resulting in no raster.

2. If the base voltage drops as when R103 is open or C105 is shorted, the B1 voltage is reduced to less than 40 V. This will mostly result in no raster, no sound.

3. When the B1 voltage drops to about 70 V, because R91 0 is open and D1 05 is shorted, the screen becomes dark and the raster size is reduced because of insufficient horizontal and vertical amplitude.

C START )

! Does 4.0A fuse blow?

,NO ~ YES

Can B1 be adjusted to 110 V with Rectifier including power supply I B1 ADJ R109? transformer has failed.

YES r----------------------1NO

Misadjustment Horizontal deflection l Does the base voltage at X101 change I circuit has failed when picture is with B1 ADJ R109? small with B1 = 110 V.

t NO t YES

Is the emitter voltage of X102 Does the emitter voltage of X10'1 correct? change with B1 ADJ R109?

+ ABNORMAL t NORMAL = 6.6V NO ~ t YES

D105 open or short I X102 open or short, R105, R108, X101, R103

I X02 has I R109 open. C105 short open failed

18

No picture (no raster) with normal sound

NOTE: 1702 locations are in ( ).

[Cause] Malfunction of the video amplifier IC201, X202 (lC201, 0201)

The video signal and the audio signal output are supplied respectively to the video amplifier IC20 1 and the audio circuit IC601 . Sound is had but no picture; therefore, the faulty part is IC201 and its external elements. Since pin 16 of the IC201 to the cathode of CRT is connected by a DC-coupled amplifier, a fault raising the emitter voltage of X202 (0201) will cause the three initial ouptut transistors to cut off, resulting in no raster.

Check also the screen grid circuit for igniting the CRT heater and the high voltage module.

No sound (with normal picture)

NOTE: 1701 - Flowchart 1702 - Audio circuit has been reduced to IC601.

[Cause] Trouble in the audio circuit IC601, X601, X603 or X604 are faulty.

• C60S open • IC601 is

faulty

NO

How is 110V collector (Normal)

voltage of X602?

OV

.X602, X603 short

.FR6010pen

• X601 (open I

• T602 (shortl

• X601 (shortl

19

Only single horizontal line, normal sound

NOTE: 1701 - First check if FR401 is broken or not. If this is broken, the trouble is due to short of X401 or break of 0401 .

1702 - Circuits in 1702 monitor differ but the operation remains the same. Check vertical controls/deflection circuits.

[Cause] Malfunction of the vertical deflection circuit. When the vertical deflection circuit is faulty, saw-tooth current is not applied to the vertical deflection coil, resulting in a single horizontal line. During troubleshooting, reduce brightness contrast to prevent an ion spot on the CRT.

1. R401 broken, C403, 0402, C413 short: 82 12V is not supplied, disabling IC501.

2. R411, R412 broken, C407 short: the voltage at IC501 pin 3 is set to zero disabling the V-amplifier and the voltage at pin 2 is set to zero to turn off X402.

3. R414, R415 are broken: VB of X401 is zero disabling X401 and X402.

4. Also check if C402 is short or open.

5. Too high VB of X402 is because of C401 short or failure in IC501 or X402.

Note: When the voltage generator fails to supply 82 12V to the secondary coil of the flyback transformer of the horizontal output circuit due to malfunction, a single horizontal line and no sound will result.

( START )

I VB at the vertical output

;- transistor X402 is nearly r---zero

Vc. VB. VE of X401 and Vc of X401 is very high while VB, VE of X401

Vc of X402 are very high and Vc of X402 are (more than 100 V) very low

R401, R411, R412 or R414, R415 broken, R413 broken. C403, X402 short, 0402, C407, 0405 short IC501 faulty X402 open IC501 faulty

20

[Faulty parts and problems other than described]

X401 open Vertical amplitude small (6 - 8 cm) D401 short Picture appears only on the lower half of the screen C408 short

R403 faulty A single thick (ca. 5 mm) horizontal line

R404 faulty When turning V. HOLD, a black belt (V blanking signal) appears at the center of screen. The whole screen is dark and flickers.

R405 faulty A single horizontal line. A picture flashing at about 1 second interval appears on the upper half of the screen.

R407 faulty A picture of about 4 cm at the center of the screen. About 25 irregular lines appear on the upper half of the screen.

R408 and Vertical amplitude small (about 15 cm) R409 faulty

R410 faulty Vertical amplitude small (about 2 cm). Picture goes slightly up and down and flickers.

R416 faulty C409 open Vertical flyback line appears.

R419 faulty Small number of irregular lines

21

Improper horizontal or vertical synchronization

NOTE: 1701 and 1702 locations are the same.

[Cause]

1) Defective horizontal and vertical sync:

The sync separator and amplifier consists of an IC(lC201). The main cause of failure is often a failure of the IC itself. It is also necessary to be careful of a possible failure of the external components. Because the change of voltage at each pin of the IC is extremely small, it is very difficult to discover a failed element by measuring voltage.

2) Defective horizontal sync:

This is due to a failure of IC501 or the horizontal AFC circuit.

3) Defective vertical sync:

This is due to a failure of either the separator and amplifier for the vertical synchronous signal, or the vertical oscillator IC501 and its peripheral elements.

START

8.8V R le201 NO pin 8?

YES

NO 9V at IC201 • C201 short pin 9 ? • R106 open

• IC201 faulty

YES

• C202 short • R201 open • IC201 • C211 short

faulty

22

Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314-xxx-xx) will be available from Commodore at this time.

1701 CHASSIS PARTS

LOCATION DESCRIPTION JVC PART # COM PART #

OY01 Deflection Yoke * CJZ6134-00A

J01 Pin Jack Vid In C39Z27-224

J02 Pin Jack Aud In C39Z27-223 L21 Oeg. Coil * A39477-T

R05 Nonflammable Res. 220 ohm, 25W, ±10% * QRF258K-221

S01 Power Switch * CEX40097 -002 SP01 Speaker EAS-10P225S T01 Power Transformer * CE30074-BOA T502 HV Module * CJ26107-22A V01 Picture Tube * 370FVB22(E) Sub:

* 370ESB22(E)

X01 Transistor * 2S0869 Sub: * 2S0898

X02 Regulator * 2SC1106A

*SAFETY COMPONENTS - Use EXACT replacement ONLY.

1701 CABINET PARTS


1701/1702 Front Cabinet C 314900-01 1701/1702 Front Cntrl Panel Door C 314901-01 1701/1702 Power Button C 314902-01 1701 Front Name Plate C 314903-01

1701/1702 RT Side Handle C 314904-01 1701/1702 L T Side Handle C 314905-01 1701/1702 Rear Cabinet C 314906-01 1701/1702 Rear AN Terminal Assy C 314907-01 1701/1702 Top Cabinet Panel C 314908-01 1701/1702 Replacement AC Cord * QMP1460-244K * C 314909-01


23


LOCATION DESCRIPTION

INTEGRATED CIRCUITS

IC1201

IC1301

IC1501

IC1601

TRANSISTORS

X1101

X1202

X1250 X1301

X1351

X1352

X1401

X1402 X1501

X1601

X1602

X1603

X1701

DIODES

01201

01202

01203 01301 01302 01401 01402

01405 01503 01504

01505

01506

01507 01508

01601

01701

Zener Zener

Zener

Zener

MAIN PCB ASSEMBLY #GE-1000A

JVC PART #

HA 11401 HA11247

HA11244

HA 11107

2SC1959 (V) 2SA1015 (V)

2SC1815 (V, GR) 2SC1815 (V, GR)

2SC1815 (V, GR)

2SC1815 (V, GR)

2S0401A (K, L)

2S0401A (K, U 2SC2371V 2S0668A (B, C)

2S0668A (C)

2SB648A (C)

2SC1815 (V, GR)

IS2471 V-V

W06B

W06B 1S2473H-V 1S2473H-V 1 S2471 V-V R011 E (B)-V R036E (B) RH-1 V19E R011 E (B)-V

W06A

V09E IS2473H-V MA26WO (B)

HZ20-V1


COM PART #

24


MAIN PCB ASSEMBLY #GE-1000A (Continued)


RESISTORS

R1410

R1414

R1415 R1421

R1503

R1509

R1511

R1512 R1514 R1515

R1522

R1523 R1528

R1532 R1703

T1704

Metal Film. 6.8. 1W. ± 5%

Oxide Metal Film. 3.3K. 1W. ± 5%

Oxide Metal Film. 2.7K. 1W. ± 5% Oxide Metal Film. 6.8K. 2W. ± 5%

Metal Film. 11.8K. 1/4 W. ± 1 %

Oxide Metal Film. 10K. 2W. ±5%

Oxide Metal Film. 8.2K. 2W. ± 5%

Oxide Metal Film. 8.2K. 2W. ± 5% Oxide Metal Film. 680. 2W. ± 5% Metal Film. 8.2. 1 W. ± 5%

Metal Film. 4.7. 1W. ±5%

Oxide Metal Film. 18. 2W. ± 5% Oxide Metal Film. 390. 1 W. ± 5%

Zinc. 270. ± 10% Metal Film. 41.2K. 1/2W. ±1%

Metal Film. 9.53K. 1/4W. ± 1 %

VARIABLE RESISTORS

R1209 1K R1303 50K

R1305 20K

R140S 220 R1422 220 R142S 50K R1524 4.7K

CAPACITORS

C1202 Tantalium •. 47 p,F. 35V. ±20% C1204 BiPolar Electrolytic. 3.3 p,F. 50V. ± 20% C130S Trimmer Cap

C1351 BiPolar Electrolytic. 10 JtF. 16V. ± 20% C1402 Tantalium. 2.2 JtF. 16V. ± 10%

C1407 Electrolytic. 3.3 p,F. 50K. ± 10% C1411 Electrolytic. 100 p,F. 160V. +30%. -10%

C1412 Electrolytic. 3.3 p,F. 160V. + 30%. -10%

C150S Polypropylene. 5600 pF. 50V. ± 5%

C1511 Electrolytic. 47 JtF. 160V. +30%. -10% C1512 Metalized Polypropylene. 1500 pF. 1600V.

±5%

JVC PART #

ORX019J-6R8S

ORG019J-332

ORG019J-272 ORG029-J-682

ORV141F-1182

ORG229J-103 ORG229J-822 ORG229J-822

ORG229J-6S1

ORX019J-SR2 ORX019J-4R7

ORG029J-180

ORG019J-391

ERS-C05DK271 ORV121 F-4122 ORV141 F-9531 Y

OVZ3234-013 OVZ3234-054

OVZ3234-024

A76195-221

A76195-221 OVZ3243-254 A76195-472

OEE61 VM-4 74RZ OEN61 HM-335Z

OEN61 CM-1 06Z

OEE61 CK-225B OEM41 HK-335M OET52CR-107

OET52CR-335

OFP31 HJ-5625

OET52CR-476

OFZOOS2-1525


COM PART #

25

Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com

modore part number (C314-xxx-xx) will be available from Commodore at this time.



CAPACITORS (Continued)

C1513 Metalized Polypropylene, 1500 pF, 1600V, ±5% OFZ0082-1525

C1514 Metalized Polypropylene, 1500 pF, 1600V,

±5% OFZ0082-1525

C1515 Metalized Polypropylene, .53 ",F, 200V, ± 10% OFZ0067-5345 C1520 BiPolar Electrolytic, 1 JlF, 50V, ± 20% OEN61 HM-1 052

C1522 Metalized Polypropylene, 510 pF, 1600V, ±5% OFZ0082-5115 C1523 Electrolyic, 1 ",F, 160V, +30%, -10% OET62CR-105Z C1530 Metalized Polypropylene, 510 pF, 1600V,

±5%, OFZ-0082 511 S


±5% OFZ-0082-152S

C1610 BiPolar Electrolytic, .417 ",F, 50V, ±20% OEN61HM-474Z

C1612 Electrolytic, 10 ",F, 160V, +30%, -10% OET52CR-106

C1613 Electroyltic, 10 ",F, 160V, +30%, -10% OET52CR-106

COILS

L1201 Peaking 820 ",H A04725-820Z

L1203 Peaking 270 JlH A04725-270Z

L 1351 Peaking 22 ",H A04725-22Z

L1352 Peaking 22 ",H A04725-22Z

L1353 Peaking 22 JlH A04725-22Z L1502 Linearity A39835

L1503 Width CJ39503-00A

L1504 Heater CJ30030-11

TRANSFORMER

T1201 Trap 3.58 A75537-C

T1301 BP 3.58 CE40191-00A

T1501 Horizontal Drive A46022-8M

T1503 Side Pin C39084-A

T1602 SOT ETA24Z5AY

OTHER

DL1201 Delay Line CE40472-001

S1201 Lever SW (Service) CEX40078-001

Y1301 Crystal A75746

FR1401 FR68 ohm, 2W, ± 5% * 2RH021 J-680M

FR1601 FR100, 1/2W, ±5% * ORH127J-101M


26


POWER PCB ASSEMBLY #GE-9000A

LOCATION DESCRIPTION JVC PART #

TRANSISTORS

X9101 X9102

DIODES

09101 09102

09103

09104

0910S

RESISTORS

R9103

R9104

R910S R9108

R9110

Silicon Silicon Silicon

Silicon

Zener

Metal Film, 4.7, 3W, ±S% Oxide Metal Film, 10K, 2W, ± 5%

Oxide Metal Fim, 18K, 1W, ± 5% Metal Film, 47K, 1/2W, ± 1 %

Metal Film, 3.01 K, 1/4 W, ± 1 %

2SC1890A (E, F) 2SC2688 (K, L, M)

1S1887A 1S1887A

1S1887A

1S1887A

R06.8EV3-Y

ORX039J-4RZ

ORG029J-103A

ORG019J-183S ORV121 F-4702

ORV141 F-3011 Y

VARIABLE RESISTORS

R9109

CAPACITORS

C9104 C910S

C9107 C9108

OTHER

F9101 FR9101 R9101

(81 AOJ), 2K 8

Electrolytic, 330 p,F, 200V, +30%, -10% Electrolytic, 10 p,F, 2S0V, +50%, -10%

Electrolytic, 330 "F, 200V, +30%, -10% Electrolytic, 1 p,F, 160V, + 30%, -10%

Fuse, 1.2SA FR 220 ohm, 1/2W, ± S% Positor

OVZ3234-023

OES720R-337M OEZ0077 -106M

OES720R-337M QETS2CR-1 05

* OMF51U1-1R25S * ORH127J-221M

* A75511


COM PART #

27


CRT SOCKET PCB ASSEMBLY #GE-3000A


TRANSISTOR

X3101 X3102

X3103

RESISTORS

R3112

R3113

R3114 R3115

R3116 R3117

Silicon

Silicon

Silicon

Oxide Metal Film, 12K, 2W, ±5% Oxide Metal Film, 12K, 2W, ±5% Oxide Metal Film, 12K, 2W, ±5% Composition, 3.3K, 1/2W, ±10% Composition, 4.7K, 1/2W, ±10% Composition, 3.3K, 1/2W, ±10%

VARIABLE RESISTORS

R3102

R3104 R3106 R3109 R3111

CAPACITORS

C3101

C3102

COILS

L3101 L3102

L3103 L3104

OTHER

B Cut Off, 5KO, B

R Cut Off, 5KO, B

G Cut Off, 5KO, B R Drive, 2200, B G Drive, 2200, B

Electrolytic, 10 p,F, 250V, + 50%, -10%

Ceramic, 1000 pF, 3000V, + 100%, -0%

Peaking, 180 p,H Peaking, 390 p,H Peaking, 390 p,H Peaking, 390 p,H

CRT Socket

JVC PART #

2SC2611

2SC2611

2SC2611

ORG029J-123

QRG029J-1 23 QRG029J-123 QRZ0039-332

ORZ0039-472 ORZ0039-332

QVZ3234-053

OVZ3234-053

OVZ3234-053 OVZ3234-022 OVZ3234-022

OEZ0077 -106M

OCZ9017-102M

OOL043K-181 A04725-390

A04725-390 A04725-390

* A75522


COM PART #

28


CONTROL PCB ASSEMBLY #GE-4000A


VARIABLE RESISTORS

R4003 Tint, 10K CEX40206-B14

R4004 Color, 10K CEX40206-B 14

R4006 Cont, 10K CEX40206-B 14 R4012 Bright, 10K CEX40206-B 14

R4015 V Hold, 10K CEX40205-A 14

R4016 H Position, 500 CEX40205-B52 R4022 Sub Bright, 4.7K OVZ3507-472

R4024 Volume, 200K CEX40205-A25


FUSE PCB ASSEMBLY #GE-9700A


CAPACITORS

C9701

C9702

OTHER

F9701

Metalized Mylar, .047 p,F, AC125V, ±20%

Metalized Mylar, .047 p,F, AC125V, ±20%

Fuse 4A Line Filter

OFZ9008-473M

OFZ9008-473M

* OMF61 U1-4ROS A39475-J


COM PART #

COM PART #

29

1701 Board Layout

r ;U0.60 R-<:3 1~ E T201 I DL201 I ~ !: 1 ~ I o~ O.O,,? ~ ~OoJ B ) L ~ '" NO R204 On -----.r,.,";5. • .r-------c

'W 3 C :e=:::>- 0 ; ,c'250 _ c,s> 0 ~1 ° ~~~~O ~~~ono.~o~ ~1 .:;:; 1~;; O~ C-~o::,. ~ :,~~ ~ -s.. !,l, 00 -c::::::r - '~202 -e:r ""'0 n -. -c::::::r. ~~oo ... 9

W44

oft ~. ~ V XS01 (])C509 <::> R526 --1 t-W43

R510 ~R506

TS01

)C515 ~523

( ORN ORN

54 53 52

~J CS21 ~ ( ( L502 L

0 ( ;u <!! ~

: <> .350 .2"~ ~o ~~ -c=:r o U'i0Q "'. "'--F ~ • " '" ~. >< -c=:r..,'~ OOn • ~:u ..... N . ~ 0 ."'7. fA ;;

j2 1'1 ° -c=:r 0 '" \...? ~ ~ QI .. o h 1'1 ~ <:> (]) '/1103 C2020 I!! '5 N~ 000' '" ~ 30 IU -dts,'l,. wo. _ .c::t.31. ~ g Ow b n woo m -c::::::r .317 '"

) r o • - ::..c::::r ~ -c::::::r • W I I_ • ~! CO" c::::>- U .205 3 ~ W.07 w" Qri ~050Rl0~7~,0. C).o,O ~ ~ OOO~ ~ U::~~O· .. TP12A ~~ ~,O !1'1 g

• ~. ,0·"0' .". ~ • ;; q614R6,~ gu~ ~.357 ~ 0 ~

W,2 W54

X402 R420 --1

W92

Wl3 C

B ~.::

(jt°C.09 )~' ORIOO' ·~I IT30'wo. q~301 R:03 0 ~ 8 O£ ::0 - I I - TP51. WI. ;l 0.0. ~. ~ ;; '" 2 - COlOR • 2 c=lc.., <::>)( [] QI - ~R3"'- 0 J"-"L .302 ~ 0 W40 C611 C LJO '--1" ~ _ ~.r---'. W'5.",

go E • C302 • .30. 307 '---.r = COOS,--, ~ • 0 c=) .0. '----' 2! '" R323 0 -c::::::::r R322 W 52 0 0'

o n -c::::::r • -c::::::r .305 w.3 ~ C;f:)'04.SO

g ~N • n n ~ 1., :

CD -<i=r 000' a 0 -c::::::r o~ ~-c=:::>- • ...r--\..

X401

W33 W93

19

14 T01

E~X8602 ii 0 n~ ~. [OiUB TINT. 0 L-> 'e' , 0 On .505.703 _ " nD -C::::J ; -0 ~. .30' ~ ~ _ T~ >----r •

g. -c::::::r :::: :; ~ o~ g 0". .",.~, ~O ~ ~ Co) ~611 < ~-or~o ~@L9 • A· Z\ JCSO' ;; W:Aol :; '. ~ 2 • t)'(a WI.- &0303U . 0 C4~O~ '~I~ ~ W2' ~ ."f-

.WHT 0· ~ ~gO ",,:''' w" ~o °OCD 0; d 0202 COj Q' ~. C2m ~O:Q~7 ~ t i~;--l-ja:)44=~~(ff~_ en C613......... 0 0 °0 -)( ~ 0402 u",Q06 I ~ () QS W30

." • • - "'. 't--" • '" '~421 W~3ill ~___ I

BlK .- ~3081 r ---- -0 9 "

"'" ~ - 0404 W" ,." • 0 :tEtf412 -0 • <: c'" ~ ,,0' WI' •• ~ -c::::::r. . _ T602 i5 c.,,o O;u0:uO~o3°·1 .}::l t;':ob'oOO~ (C2S02~ ___ } _, ~R410 0503

9 0307~ ~ :: ;S ...... ~ 3 R403 ~ -W 0 R42B i i P .c::::p. 0 • 050. , 3

0306 0 ,...~ -I I • • , T O "---1 i g •• " 0 g H.FREQ V.POSITION w.o

1

S 4

03 02 01

LS03

L

~q 1_- re', - 0 .. "" - V.L1N. V.HEIGHT GE-1000A

..., 51

I )C512 ) C513 ) )CS14 )C531 C530

~ ao

10

8

6

I

.J o

1701 Schematic Notes

VOLTAGE & WAVEFORM NOTATIONS - Voltage readings and waveform measurements were taken with a color video signal injected at the video input terminal. Figures in ( ) represent voltage readings taken while receiving a black and white sign. Each variable resistor was set to condition at time of shipment. After adjustments have been made, the figures will vary and the figures should be used for reference only.

VOLTAGE READINGS Multimeter set at 20KO/volt DC. All values given are DC voltages.

REFERENCE WAVEFORMS - Scope sweep speed set at: Hor - 20 /tS/div Vert - 5V/div; Unless other speed is specified.

SCHEMATIC NOTES - Unless specified otherwise:

Resistors: Capacitors:

Inductors:

All values are in ohms, 1/4 watt carbon Values of 1 or higher are pF. Values less than 1 are /tF, 50V, ceramic Electrolytic values are in /tF, NP indicates non-polar (bipolar) Values are in uH

<;;> indicates a test point connection ;m indicates chassis ground Hz indicates cycles per second

SAFETY - For safety, maximum reliability, and continued good performance, use specified replacement parts. All safety items have been identified with the symbol *. FR is an abbreviation for FUSIBLE RESISTOR~. FR's act like fuses and are used as safety items. They are to be replaced with specified parts.

NOTICE - This circuit diagram and the circuit constants are subject to change for improvement without notice.

A/V f'ANEL (REAR TERMINAL)

~t8~IIA(B,C) orZSCZSIOV or ZSC2482 orZSCZ687 AUOIO DRIVE

X602 2SD ••• A((;) .r2SC2411~ AUDIO OUT r ~~~;:. '~;- 1 GE-IOOOA MAIN 'CB ASSY

II~HY ,., r ...... • I rt- ---lfl

~:~---~- J J 'II Y4 _ •• _.

AUDIO

'" vloro

IN

~L.

(FRONT TERMINAL)

X02 2SC1I06A or 2SCI4S4 POWER REGULATOR

9 TP'"

m ~I I GE-9000A j POWER PCB ASS'Y

IIw I1rv

0101_0104

" 1" 1t10' o

Iw ,.,

•• !lOV

ItIOI "TH 'I'"n. '801 ~~Olr. n fillO& It r-----, 1.2~ FR I I 11K IW

II I IOMR

I I

'lr" ':. ___ ~ :: CIGI OI~~1: I Ul ~ LOI I _ t _ .. ,;~~,: ./"CI~~ .07\.. ~ ~ ~H""'!V'I--~"O' I :~~ L-IITiJI-_ .... 4!i!!~!.lI:-·!!:C4..:~::.:.·_·¥6~1 +: ~"O' fClO~~O: ~~, i&J

J ,. IGII: FIOII'O UK ItttO ttO" IW T 0105 r-XI02 101M!'·""

110/100 OMR RO .. "oA 2SC2688 eM".

n'l.~ 200 ~I U<,L,M) I ____ ~MP I

~- 0'- Il~r r rol rt;iiiiii1i GE-9700A U U -=: ... : ~.'WOI FUSE PCB ASS'Y IHI

L --~~ ..... T ::~.,.O~~I".. I IFV\::,.".:= •. ::.=(V I I '01

.!. ~ I~'I ~·"---~THI~ .. g~~,uv· IV\I ""'-l-F ~~;~ ~ "0' .OHZ 100HZ

Itao * ceo ".1tc .,001 "0' IIOK ceo.

.011 ,OOY MY

SPOI

IC30I@pIn

o :$Yp..p

'HI

r9"~ ': : W ~: : olllii 1 1 L _______ J 0'1'01 DEFLECTION ,(OI<E

frtIIII 'I·IOQOA

1701 Schematic

I J

31

1702 MODEL IDENTIFICATION

BEFORE servicing a 1702 Monitor, please NOTE:

Some models are distinguished with the letter "T" next to the manufacturer's serial number.

_-----+------ Rating label

Serial No. I -------------(T) I

L-- Model discrimination point.

This designation indicates that a TOSHIBA picture tube and deflection yoke were used. A difference in electrical specifications is required. The connect schematic and parts list is identified 1702 "T".

32

Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part number (C314-xxx-xx) will be available from Commodore at this time.

1702 CHASSIS PARTS


DY01 Deflection Yoke * CJ26161-00A

J1821 US Pin Jack Vid In C39207-004

J1822 US Pin Jack Aud In C39207-003

L01 Degausing Coil * A39477-T

01522 Silicon Transistor * 2SD1426 R01 Un"flammable Resistor, 280fl, 20W, ±10% * ORF208K-281

S01 Power Switch * CEX40097-002

SP01 Speaker 80, 2W EAS-10P225S

T01 HV Module * CJ26156-ooB

V01 Picture Tube * 370FVB22(E) PC Magnet CE40305-ooB Neon Lamp OLZ9015-oo1


1702 CABINET PARTS


1701/1702 Front Cabinet C 314900-01 1701/1702 Front Cntrl Panel C 314901-01 1701/1702 Power Door Button C 314902-01 1702 Front Name Plate C 314903-02 1701/1702 RT Side Handle C 314904-01 1701/1702 L T Side Handle C 314905-01 1701/1702 Rear Cabinet C 314906-01 1701/1702 Rear AN Terminal Assembly C 314907-01 1701/1702 Top Cabinet Panel C 314908-01 1701/1702 Replacement AC Cord * QMP1460-244K C 314909-01


33

Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314xxx-xx) for will available from Commodore at this time.



INTEGRATED CIRCUITS

IC1201

IC1301 IC1421 IC1501 IC1601

TRANSISTORS

01101

01201 01251

01301

01341 01342

01501 01521 01522

DIODES

01201 01202

01204 01301

01302

01401 01421 01422 01501 01502 01503 01522

01523 01524 01525

01541

01551

Zener

Zener

Zener

HA11401

HA11247

AN5515 HA11244

AN5265

2SC1959 (Y)

2SA 1015 (Y, GR) 2SC1815 (Y, GR)

2SC1815 (Y, GR)

2SC1815 (Y, GR) 2SC1815 (Y, GR)

2SA1015 (Y, GR)

2SC1627A * 2S01426

1SS133 W06B

1SS133 1S1555

1SS133 MA4110 (M) 1SR124-400 1SR124-400 MA4110 (M) 1SS81 1SS133 1SR124-400

RM-2C U19E MA4220 (M)

1SR124-400 1SR124-400


COM PART #

34


modore part numbers (C314-xxx-xx) will be available from Commodore at this time.



DIODES (Continued)

D1701

D1702

RESISTORS

R1414

R1421

R1511

R1523

R1526

R1530

R1531

R1532

R1534

R1551

R1607

R1701

R1702 R1705

Zener

Oxide Metal Film, 1000, 1W, ±5%

Metal Film, 1.50, 2W, ± 5%


Oxide Metal Film, 1 K, 1 W, ± 5%

Carbon, 1 K, 1/2W, ± 5% Oxide Metal Film, 12, 1 W, ± 5%

Metal Film, 47, 2W, ± 5%

Carbon, 1 K, 1/2W, ± 5%


Metal Film, 2.7, 1W, ±5%

Metal Film, 5.6, 1W, ± 5%

Metal Film, 33, 1W, ±5%

Metal Film, 20K, 1/4W, ± 1 %

Metal Film, 14K, 1/4W, ± 1 %

VARIABLE RESISTORS

R1209

R1303

R1305

R1406 R1408 R1429

R1504

CAPACITORS

C1202

C1204

C1308

C1342

C1402 C1404

C1406

C1423

Sub Cont., 1 K

Sub Color, 50K

Sub Tint, 20K

V. Linearity, 200 V. Height, 200 V. Position, 500

H. Frequency, 5K

Tantalium, .47 J.'F, 35V

BiPolar Electrolytic, 3.3 J.'F, 50V

Trimmer

BiPolar Electrolytic, 10 J.'F, 16V

Tantalium, 2.2 J.'F, 16V Mylar, .1 J.'F, 50V

Mylar, .056 J.'F, 50V

Electrolytic, 100 J.'F, 35V

JVC PART #

1 SR124-400

* HZ7B2L

QRG019J-1 01 S

* QRX029J-1 R5A

QRGO 1 9J-560S

QRGO 19J-1 02

* QRD121J-102SY

QRG019J-120S

QRX029J-4R7 A

* QRD121J-102SY

QRG019J-471 S

* QRX019J-2R7S

QRX019J-5R6S

* QRX019J-330S * QRV141 F-2002Y

* QRV 14 1 F-1402Y

QVZ3230-013

QVZ3230-054

QVZ3230-024

QVZ3234-022 QVZ3234-022 QVZ3211-052

CEX40202-053

QEE61 VM-4 7 4BZ

QEN61 HM-335Z

CEX40212-001

QEN61 CM-1 06Z

QEE61 CK-225BZ QFZ0083-1 04M

QFZ0083-563M

* QET51VR-107


COM PART #14

35


modore part numbers (C314-xxx-xx) will be available from Commodore at this time.



C1425 Electrolytic, 470 p,F, 35V C1426 TF, .15 p,F, 50V C1502 Electrolytic, 220 p,F, 35V, +30%, -10% C1508 Polypropylene, 5600 pF, 100V

C1523 Electrolytic, 33 p,F, 160V

C1526 Metalized Polypropylene, 5000 pF, 1600V

C1529 Metalized Polypropylene, .53 p,F, 200V

C1530 Electrolytic, 2.2 p,F, 50V C1531 Electrolytic, 470 p,F, 25V, + 30%, -10%


C1535 Mylar, .082 p,F, 100V, ± 10%

C1541 Electrolytic, 1 p,F, 160V, + 30%, - 10% C1551 Electrolytic, 1000 p,F, 16V, +30%, -10%

COILS

L1201 Peaking Coil, 820 p,H L1203 Peaking Coil, 270 p,H

L1301 Peaking Coil, 22 p,H



L1521 Lin. Coil L1522 W. Coil L1523 HVT Choke

L1524 Heater Choke

TRANSFORMERS

T1201 T1301

T1521

Trap, 3.58 MHz BP, 3.58 MHz

SW Drive

MISCELLANEOUS

DL1201 S1201

X1301

Delay Line

Service Switch (Lever)

Crystal

±3%

JVC PART #

* OET51 VR-477 OFV81 HJ-1 54M

* OET51 VR-227 OFP32AJ-562M

* OET52CR-336

* OFZ0081-5001S

OFZOO67-534S

OEN61 HM-225Z * OET51 ER-477

* OFZ0081-1 501 S * OFM72AK-823M

OET62CR-105Z * OET51CR-108

A 76186-820Z A76186-270Z

A76186-22Z

A76186-22Z

A76186-22Z

* CE40052-001 * CE40140-00F

CE40037-560

CJ30030-100

A75537-0 CE40476

* CE40361-00B

CE40535-001

CEX40078-001

A76351-D


COM PART #

36

Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314xxx-xx) will be available from Commodore at this time.

CONTROL PCB ASSEMBLY #GE-1003A (4/6'


VARIABLE RESISTORS

R1854 Cont, 10K R1860 Bright, 10K R1863 Sub Bright, 4.7K

R1866 Tint, 10K R1869 Color, 10K

R1871 Volume, 10K R1875 V. Hold, 10K R1877 H. Position, 1 K

MISCELLANEOUS

L1851

SW1821

J1821

J1822

Peaking Coil, 820 pH Slide Switch (Signal Select)

US Pin Jack (Video In)

US Pin Jack (Audio In)

JVC PART #

CEX40206-B 14 CEX40206-B 14 aVZ3507-472

CEX40206-B14 CEX40206-B 14

CEX40205-B 14 CEX40205-A 14 CEX40205-B13

A 76186-820Z

CEX40325-001

C39207-004

C39207-003

COM PART #

37

Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part number (C314xxx-xx) will be available from Commodore at this time.

CRT SOCKET PCB ASSEMBLY #GE-1003A (3/6)


TRANSISTORS

01351

01352

01353

DIODES

01351

RESISTORS

R1357-

R1359 R1360-

R1362

R1378

Silicon

Oxide Metal Film, 12K

Composition, 3.3K

ZN

VARIABLE RESISTORS

R1352

R1354

R1356 R1369 R1371

CAPACITORS

C1351 C1352 C1356

B Cut Off, 5K

R Cut Off, 5K

G Cut Off, 5K R Drive, 200

G Drive, 200

Electrolytic, 4.7 ",F, 250V Ceramic, 1000 pF, 3K V Electrolytic, 4.7 ",F, 250V

MISCELLANEOUS

L 1351 Peaking Coil, 180 ",H CRT Socket

JVC PART #

2SC2611

2SC2611

2SC2611

RM-2C

ORG029J-123

ORZ0039-332

ERZ-C05ZK271

CEX40302-053

CEX40202-053 CEX40202-053 CEX40202-022 CEX40202-022

* OET52ER-475 OCZ9017-102M OET52ER-475

00L043K -1 81

* CE40085-00A


COM PART #

38


REGULATOR PCB ASSEMBLY #GE-1003A (2/6)


INTEGRATED CIRCUITS

IC1901

DIODES

01504

01901-

01904

RESISTORS

R1902

R1907

R1910

CAPACITORS

C1901-

C1903

C1904

C1906

C1907 C1908

C1910-

C1911

Bridge Rectifier

Si

Non-flammable, 2, 7W

Metal Film, 4.7, 2W

Composition, 6.8M, 1/2W

Ceramic, 4700 pF

Electrolytic, 470 JlF, 200V,

Metal Film, .1 JlF

Electrolytic, 10 JlF, 160V, Metal Film, .1 JlF

Ceramic, .1 JlF

MISCELLANEOUS

L1901 T1901

F1901

F1902

TH1901

Coil - Line Filter

Power Transformer

Fuse, 4A

Fuse, 1A

Thermistor

±20%

+30%, -10%

JVC PART #

* STR3125

* 1 B4B42

* 1S1887A

* QRF076K-2RO

* QRX029J-4R7 A

QRZ0039-685

* QCZ9021-472U

* QEU720M-477M

* QFZ9020-1 04M

QET52CR-106 QFZ9020-104M

QCZ9020-472M

* CE40247 -OOA * CE40489-00A

* QMF66U 1-4ROS

* QMF66U 1-1 ROS

* CEX40137-001


COM PART #

39

1 702 Board Layout

wO D llioR356 oR354 oR3S7 Ilil ~ GE-I003A 15/61 Ai INPUT ~ ~I"'""'I I ... 1"""1 UN .. '0 1 m;.1 '.d~1098H !i1eum!@

i :~~~~9~O~; _ ~ 6 L ;i P~jJYIRI ! ! i~ O~ ~~. ~ '0 n

~n'" ~~70 ~ E [136}l .... 0 ill AOOIOO "'0 .I~ ~ ~tr @lJ u y; 0 a 06 0 0 0

a~'" ... '" B ~n: ~ - El rl-. 0 .dLoo:ooo~:00000~£~~-:90oo~oooooo~00000 @ ~ ~ ~ II!! - E U... C356 0 U ~: ... ~ gUn ~ 0"'" : {; ~ oo-fl"' ~ "' ~DO

Y ~OO U ~~6 " a ~ 0 ~ r O~ .. ~ 1l.201!J R204 ;; -a R203 0 °OR205 RS06 R511_ C504 a R9k1 .... L....-__ ___L_....l

163 ~ I : O~ - ~ 9001 -II'? .~""g .. l~ 0503 ~70 • C503 ~20 -{] 0- ~ ~C534

~ ..... i.ill-.I"·I: ,.. : ""DO§09a gOO~~ :;:!'lfd;.,~::. ~i 1:'0 oo~0523 ;: ~ I [!] 3 I I'8l 4 ~ O~O 0 a R202 09 .....!!I9l.. C401 IT"'. !HIRO! ~ &I C526 ~ _ l!...J 0 _12_3 _ ~ ~ ~2 -c:::::..J- C> _ TP-llA I'" t:: ~ 136

~~ I I ~~~R209 C34100 "'~U Oa I ~ ~ ~o ! -- I C351 - ~ =~ R227 a~~~ ?61oo'Oiili ~ (j703 ~ 2 ~

o 0 0 0 0 0 0 0 0 0 =, ==. 0 0 0 0 0 0 0 0 0 0 0 0 0 = 0 0 0 .m a" Ill"" :}i , m151~ 0 ~ ~ .. "'@&Irll't-iii Rfi? -B43,;;;-\: . y~ a R404 III ~ I R906 ~g .--C904___ ~ ~OCkl3 51 ~lllT3°D""· Oi!lO~.TH ~~ ~ ~ i ! -c:::::r 0 E B ~ 1<1 TNI 2 -c:::::r .

o ~ C 0111 .~ R401 n ~ 11 l522

;;;1 21 ~ ~ :~63 a ctlOS ~CJCZ R3)~3'" "w Oioit ~o O~ o~ -c: 8 ~ @()c .. Ii ~ 0 0 -U( 23 5:! -- (301 6(0301 --- ~

(1)2 05 C> E. R424a to R4I 0541 m3 Oi!l i"i R322 R a ~

O --r-----==__. 0 ::: C303 9 00 a R31i 425a C401 E 51 a UI R423 RS4~

O RED O-t)() 02", ; B ~ @2A3117o I a C4~;: ~ ~ C54U

! 0 ::: ~ R313 i!l 51! tjU 128 D ~ a CO 0 (422 -- EI

~ -m; "" I 40 Q ij g C> C421 ~ -

o 0 ~ ro ~I J C314 WI3 0 () R413 C>

a. : :J;'-~O. ~-- CJliD ~ZI ( ~ 0 0 Rklla"R3UE B L....J 0 110 P ~

o U45 0342 00 Oi!l OR3~311 ~Oo EJ 0 -<::hd- . R41l ~

[f:~Y~EJO"'laV. ml"" e a IITl'" I!5_Wll_· - R405~C5. ~(j~RS36b ~:~~~ o -la 0 0 MIl C>. _ WI2 ~ R409 ~ 91?Z5 oce 0 0 _ -- I 5 WI! -wi! o ~~ () 0 --~ R4M -- n ~

~ 8~ ~ ~ II !4!Il ~ I D ~8 -{] 0- R426 -c:::::r '.!X 1)1

Sf! ~ _ a R601 I S SW201 • 104 E H 0201 R427 ~ R4j R505 21 ~ ::c!:: >- R60Z ~ § a -- <t:> 0201 .

OJ L.. __ --.JI I r-1_rF9.!!!.Ol..l4:.l!!_OA~I2!i.oi5~V...-_ ii i a ~ Rl04 :~ O~ <t:> 0302 !V.POSITIOII! R428 R421n=-..::......lo

T901 _ 1 1 I >- _ ~ 0 rsuBlnNT ~ ~ -I!I~:; R608 a [!] OORS:S19 gW26 1-c:::::J-,~ ,u-I-,.-u,

U") 0 lJJ!!J~ ~ I h (~ - ~ El _~ 3 ~ C> R406

(] ~ ~ 0 o~ ~ 0 §C}.J ~ ~ ~I:a ~ a R537 ! I.HIQlT' HOT ~ tB 00 - 0 Rl03 R606 a 1:533 C> R;m-

''''ng 0:: 0 ~ ~ ~ SUB COLOR 0-.. !.1 -iU 0 Of-I 0 0 0 L-J e R607- R5lO -L.LJ C605 GE -1003A (1/6) 10 OL <.!:> MAIN PB c-=,AS""=Sy~======J===================,,,"===~=_==dJ

C906

I~

TH901

I~ _13_1_

~ GRl.t.:lJ Ot()

C905 •

1 702 Schematic Notes

VOLTAGE & WAVEFORM NOTATIONS - Voltage readings and waveform measurements were taken with a color video signal injected at the video input terminal. Each variable resistor was set to condition at time of shipment, After adjustments have been made, the figures will vary and the figures should be used for reference only.

VOLTAGE READINGS - Multimeter set at 20KO/volt DC. All values given are DC voltages.

REFERENCE WAVEFORMS - Scope sweep speed set at: Hor - 20 /LS/div Vert - 5V/div; Unless other speed is specified.

SCHEMATIC NOTES - Unless specified otherwise:

Resistors: Capacitors:

Inductors:

All values are in ohms, 1/6 watt carbon. Values of 1 or higher are pF. Values less than 1 are /LF, 50V, ceramic. Electrolytic values are in /LF, NP indicates non-polar (bipolar). Values are in uH.

<;;:> indicates a test point connection ~ indicates chassis ground Hz indicates cycles per second

SAFETY - For safety, maximum reliability, and continued good performance, use specified replacement parts. All safety items have been identified with the symbol *. FR is an abbreviation for FUSIBLE RESISTOR~. FR's act like fuses and are used as safety items. They are to be replaced with specified parts.

NOTICE -This circuit diagram and the circuit constants are subject to change for improvement without notice.

ftS=E~'ER

[1 r------------ -----------------------------------------------------,1

;.; R32! 390 A ReSI :oJ. -: TP~51 LI I ~.8K 5.61"> GE-1003A(5/6)

AV INPUT PB ASS' Y (REAR)

LUMA AUDIO CHRO~A

1~~-d~-C9J'p---,

I IC601 AN5265 AUDIO

ATT I J --J OUTPth f1 ~DC VOL 'I .fAiiDIol

._, --"'1: ~ R880 1 +.C~~~1I6 ..+- li·=-~cc=c=it_r~+::_:~-+-t't;;;_t_--+- r ::: L Re6B R4B7506 R8S? RB59 R81.- 9"'71,6~ ~~~l)--~(AOOIT10HAlJ *;..C"01 ii303 R323 I .. O.2V\l-1l + 005 R32B RlO' RI"~O kI,''',,' -t--t······---t----.--<0JL5 l~ "'" 2.2K R8j~ 470 4.7K ~~B'\?l ' '

nOI 0-47 IOOf 12K 1ff: t ~ .471 1M 1/4 ~~ I * R864 ~~~... 1/4 56K I. I(

A32,,-f~~~~ I~_::I 16 ~. '"' ~:ClO4 'HIS ...':~" ~ m' Rilb '; -1t \K ~ ~~~~ '~ i--~0_',''18°-t-, .<V.~OlD) JI

fie - --U-- -j

I MUTE I ~ J ~3}o_('}o_(S )-\.6)-\.7}o_(8}o_(9 ~

R608

" RS07

!).4V 3'1 5£,V '5.6v I" '5.7'V 12,5v t---~~ __ 4r+~~I~'8~V~_ ~ ~---i~~----~----~

R60t C601

5.& IW OMR

4.71< 1150

~r C602 220/16

R&D;'

39 ""

CS03 10/50

+

+

R604 10K

C604 10150

R6M 4.7

+ C610 1000/16

12VP- P

IK ; T [1L:f+1 ~60 ~I ~.------;180 R303 ~ ~ ~ R867 IOK6 0 RBol ~863 L. ~o\7~ : ~6V 4.511 !).5V 12\1 lOA\I 5!lvl 3~6vi SDK R305 I I B.21< I.SK "RSS2 3 ~

: C30[ --r ~o,....(l1::-<Ji)oo-(J3 14 l~ 20K R316 :: --= ~~8?1<0 \:~~ ~S1.l8508 ~_ 4.7K 2 7K ~!. , _ .001 ;;1.' BP • r ~.:r' ISuBlISliBl j~O" 2." I I 114 "m 1

•. .-:..... GAIN KILLER ~ Will '-::Y"'1 j: r:riiiT' < COLOR) ~ (BRIGHT) I fSijBf (VOl~M[) ~ c-, IC301®PIN ACe CONTROL AM DETECTOR 9.~~6+ 1 I \.....!.!:...:. I ~ LL :4!-;;.,

().!)Vp_p I O€TECTOR f IC301 HAlI247 10/16 Rl~ I I ~====:;::::;:::;:;:::;=;t~~--~ CS51T ... 7 820P -B- ~ ~'" APC B.P AMP.Ace.KiLLER. Q301 . ! I GE -1 0 0 3 A( 4 16) -J,02 ~~71-",S"'.I ~ DETECTOR TlNT.APC.VCO 25CI815 ~ ~ CONTROL PB ASSY (H.POmlO')'" I

:.,.., '!'" :

.>l ~~-~- --- -~ l*l*l I t -tN. NJ N11NI AI A2Mo, 0SH!" 81184 B2 B3

j,J L f,.J P- j2J

R60S '80

C6C5 1.047

GE-I003A(1I6) MAIN PCB ASS'Y

CHROMA DEMODlIlAP)R 8. COLOR DEM (Y,GR) ISS!33 *' T T '* 'I?r. I ,. BURST AMP I? tl fTP-' 10.._";'';' / '--J 3.58MHl OSC - 1 from

I,"",) -J::J t, • ( GE-I003A(I/S) ~ 8 ~ /6 S' ~ !> l' I 17 ~~Ol 1 ~ Y"'O.N 3:7\I13.5V 37'.;r-~JIIO!Vi 6.9V 6911Y~1.3"Y',,-,...,---y+-~.''' ...... ~------f'---:R:'31-:'O~:-33:;:O:----j--t-t~~~CI~

."'~.!)oo't"-1'-'::': *-1 ~~~' Cl 30~2~O 2~ --t----- R31\ 330 C2~-TP-50 0301 R306 1.2K T 86-" R312 330 C3~

tSl~~~ lOtI: xg30~9 ~ I f. Y rG'E-I003A(3/6) ;?ol)-=t n : CRT SOCKET PB ASS'Y 11"r.7 ;"

AuelOl.r-=i

I Jazz !

J~: VIOEO IN '.:::.:::I :

L.......,j GE-I003A(6/6) AV INPUT PB ASS' Y

(FRONTI

C306 r307 30 - .... ; .• ::: ... ~.~ - C31Q ~ .., 190 RJ01 3'3 C30~3\OrC3111 C3lrrC3131 47125 R3!3 R314 ~

220 47 330 330 330 .033' 2.2K 2.2K , ,MY

~t-t-------~~~l C343 ;R3)16 112v ~ 10/16 ~

IJ8B21~J--'-+-------""----1Il.+ ----i9--l-u-,. } Q342 - "" 2SCI815IY.GRJ =- BUFFER

R345 R347 348 82 1/4 33K 5.6K

1/4

01

" " ~J.}-----t--r===~-~;;;-, ~ I~ ~ Q!O! ~~_6_'. __ ~ __ ~~ __ ~

V ~ 25C1959(YJ 107 ~ VIDEO AMP 560 114

IC201 HA1l401 VIDEO & SYNC SEPA

R322 10K

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REG. PCB ASSEMBLY #GE-1005A


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