J ~

l • CJC2

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MY T (!) •

TP - 33 I R502~ 4.71< r

r I 0.3

tOI MP::I03!~? n ; V(:RT or o . ..J

DECEMBER, 1985 ~=-..:::::::=: P.ART NO. 3q 40()~-05

r -- -- - ~ --, ...-,--

......

I ~CR.riOLDj .. --1""' --.. -- --'./vv

--- .. _ -I- _ RC)'O 2?1<.

_ .... L.-..<_..-"-________ ~ -'--JII~""-- _ c · __ -. __ .... _I..-I1II _______ .......... _'--___ .... _'---___ ___

PART NO. - 314001-05

SX 6 4

PORTABLE COMPUTER

SCHEMATICS

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

Commodore makes no ex'pressed 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 shali 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 © 1985 by Commodore Electronics Limited. All rights reserved.

CONTENTS

Title Page

INTRODUCTION ........................................................ ' ....................................... .

ASSEMBLY PARTS ......................... ............................................................ ....... 1

BLOCK DIAGRAM .. ....................................... .................................. ................... 2

CPU

PCB LAYOUT .............................................................. . ............................. 3

PARTS LIST .............................................................................................. 4

SCHEMATIC .............................................................................................. 6

FDD

PCB LAYOUT ....................................... . .................................................... 7

PARTS LIST .............................................................................................. 8

SCHEMATIC ............................................................................................... 10

I/O

PCB LAYOUT ............................................................................................. 11

PARTS LIST .............................................................................................. 12

SCHEMATIC .............................................................................................. 13

EXPANSION

PCB LAYOUT ............................................................................................ 14

SCHEMATIC .............................................................................................. 15

MONITOR

PCB LAYOUT ............................................................................................ 16

PARTS LIST .............................................................................................. 17

SCHEMATIC - 01 ..................................................................................... 20

SCHEMATIC - 01A .................................................................................. 21

PIS 250623

WIRING DIAGRAM....................................................................... .............. 22

PARTS INFO ........................................... ....................................... ....... .... 23

TROUBLESHOOTING .................... ........................................ .......... ............ 24

SCHEMATIC .............................................................................................. 25

I

c C 2512 1

C 1

I

....... """ ............ herein are intended for use

SX 64

the 1

are used in many devices and power may be to

indicated with a

KEYBOARD '!...A"-"'-"'-'­

MANUAL

KEY

DRIVE

1

I BACK PANEL

N

BLOCK DIAGRAM

P21

AC'lV 12V

COLOR MONITOR

J2V

POW E R ~ ~{r-I +---,.<I,t;"--p---J.---I

FDD PC B ASSY

SUPPLY

FDD UNIT

1 SERIAL BUS CABLE ASSY +1 EXT 8P fA BL 'E ASSY :3 KFfBOIlRD lNNE-R CABLE ASS'\' 4- EXT 6P CABLE ASS'!' 5 U Sf RS 'tOP CABLE ASSY 6 EX PA NSION SO P CABLE ASSY

5P

CPU PCB ASSY

Plb

Jib

~II~

2

c/) ~ co

liD PCB ASSY

SP

'Pi I ~ KEY JI ~

. BOARD CABLE

fXPANSION PCB ASS,

EXPANSION CARDEDG-E coN.., 44P

USERS POR1 24-P

EXI SER1AL BUS 6P

EXT MONITOR gp

CONTROL USERS PORT ROW q Pin f)-SUB

, (ONTRl USE RS PORI C~L q Pin {)SUB

CONtJE(TOR PC BASS'!'

PLEASE NOTE

PA RTS LIST SX 6 4 CPU

PCB ASSEMBLY #250408-01

Commodore part numbers are provided for reference only and do not indicate the availability of parts from Commodore. Industry standard parts (Resistors, Capacitors, Connectors) should be secured locally.

INTEGRATED CIRCUITS RESISTORS (Continued)

UA3 74LS257 DO NOT USE TI OR NS R21 270 UA4-UA7 4164 DRAM 200NS R22 1K UB1 74LS258 R23 1M UB2 74LS373 R24 47K UB3 74LS257 DO NOT USE TI OR NS R25 330 UB4-UB7 4164 DRAM 200NS R31, 32, 3.3K UC1 74LS139 33 UD1 2332 ROM CHAR C 901225-01 R34 150 UD3 2364 ROM Kernal C 251104-04 R35 1K UD4 2364 ROM Basic C 901226-01 R36 120 UD7 6510 Microprocessor C 906107-01 R37 200 UE3 6581 SID C 906112-01 UE4 7700-001 PLA C 906114-01 RESISTOR PACKS UE7 2114 RAM 300NS UF4 6567 VIC C 906109-04 RA1,2 33 8Pin UF6 7408 RA3 3.3K 10Pin UF7 7406 RA4 3.3K 8Pin UG6 4066 UG7 555 TIMER

CAPACITORS

TRANSISTORS C1,2 Ceramic 0.22JLF, 25V C3 Elect 10JLF, 25V

TR1-8 2SC 458 C4-7 Ceramic 0.22JLF, 25V C8 Ceramic 0.47JLF, 50V

DIODES C9,10 Ceramic 0.22JLF, 25V C11 Ceramic 0.47JLF, 50V

D1 Diode, Signal WG 713C C12-14 Ceramic 0.1JLF, 25V C15-17 Elect 10JLF, 25V

RESISTORS - All Values are in ohms-1/4 W C18-20 Ceramic 0.1JLF, 25V

5% unless noted otherwise. C21 Elect 10JLF, 25V C22 Ceramic 0.1JLF, 25V

R1 82 C23 Elect 10JLF, 25V C24 Ceramic 470pF, 50V

R2 150 C25 Ceramic 0.47JLF, 50V R3 100 C26 Elect 10JLF, 25V R4 1.5K C27 Ceramic 0.22JLF, 25V R5 3.3K C28 Ceramic G.47JLF, 50V R6 18K C29 Ceramic 0.1JLF, 25V R7 8.2K C30 Elect 10JLF, 25V R8 1K C31,32 Ceramic 2200pF, 50V R9 1K C33 Ceramic 0.22JLF, 50V R10,11, 10K C34 Ceramic 270pF, 50V 12 C35 Ceramic 0.47JLF, 50V R13 1K C36 Elect 10JLF, 25V R14 270 i C37 Ceramic 0.01JLF, 25V R15 100 C38 Ceramic 150pF, 50V R16 27K C39 Elect 10JLF, 25V R17 20K C40-46 Ceramic 0.1JLF, 25V R18 820 C47 Elect 10JLF, 25V R19 2K C48 Ceramic 0.1JLF, 25V R20 510

4

PA RTS LIST PCB ASSEM BLY #250408-01 (Continued)

C - Indicates Commodore Stocked Part Number

CAPACITORS (Continued) MISCELLANEOUS

C49 Ceramic 1000pF, 25V FB1-14 Ferrite bead C50 Ceramic 470pF, 50V C51 Ceramic 33pF, 50V L1 Coil Inductor 2.2j.tH C52 Ceramic 0.047j.tF, 25V L2 Coil Inductor 22j.tH C53, 54 Ceramic 1800pF, 50V C55 Ceramic 0.1j.tF, 25V Y1 Clock Osc 14.31818 MHz 251105-01 C101 Ceramic 82pF C102 Ceramic 68pF C110 Ceramic 150pF, 50V C111,12 Ceramic 330pF C1 ~ 3 Ceramic 100pF C114 Ceramic 68pF

5

pOWER P 11(5285 -06A) ~ 12v 6~ 1 5::

4-::O-+---to---...,

I 2 u-t--............. --5 V

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

JI,+­(fXY-iN5/oN BVS) (Ps -,f<)Sf/ - OlfTSI-/)

SX 6 4 CPU SCHEMATIC DIAGRAM

PIB (lNTCRn (So :SA)

[

- ~7~ - - C'/. CoLoh

- - ~ J 1,..j["Pf,

r~ ~;j -

6

7

PLEASE NOTE:

PARTS LIST SX 64 DISK CONTROL PCB

PCB ASSEMB LY #250410-01

Commodore part numbers are provided for reference only and do not indicate the availability of parts from Commodore. Industry standard parts (Resistors, Capacit ors, Connectors) should be secured locally.

INTEGRATED CIRCUITS RESISTORS (Continued) - All are carbon 1/4 watt, 5% unless noted

UA1 TMM2016P RAM UA3 ROM $EOOO-$FFFF C 901229-05 R7, 8 470

UA4 ROM $COOO-$OFFF C 325302-01 R9 2. 2K

LlB2 74LS04 R10 150 1/4W, 1 %

UBC3 6522 VIA C 901437-0~ R1 1 100 1/4W, 1 %

UBC4 6502A CPU C 901435-02 R12 2.2K

UC2 74LSOO R13 470

U02 74LS42 R14 2.2K

U03 74LS86 R15, 16 22K

UOC5 6522 VIA C 901437-01 R17, 18 9.1K 1/4W, 1%

UE2 74LS14 R19,20 220

UE3 7406 R21, 22 150

UF2 M54532P TRANS ARRAY MITSUBISHI SUB: R23 330

ULN2064 TRANS ARRAY R24, 25 2.2K

UF3 7404 R26, 27 470

UF5 GATE ARRAY C 325572-01 R28 360

UG4 7407 R29 510

UG5 74LS193 R30 22K

UH1 592 VIOEO AMP R31 360

UH4 9602 ONE SHOT R32 5.1 K

UH5 74LS197 R33 220

UJ1 592 VIOEO AMP R34 330

UJ4 74LS86 R35 1K

UK4 LM311 COMPARATOR R36 330 R37 , 38 150 R39 100K

TRANSISTORS R40-43 1K R44 10K

TR1 2SC 945 SUB:2SC 1815 R45 100 TR2-5 2SA 733 SUB:2SA 1015 R46-49 1K TR6 2SA 673 R50 47 TR7 2SC 945 SUB:2SC 1815

CAPACITORS DIODES

C1, 2 Ceramic .1I£F, 25V 01 -6 Signal, 1 N4148 C3 Electrolytic 3.3I£F, 16V 07 Zener, 5.1 V, 500mW, + /-5% HZ5C-2 C4 Ceramic .1I£F, 25V 08 Signal, 1 N4148 C5 Ceramic 680pF, 50V 09 Zener, 3.3V, 500mW, + /-5% HZ3C-2 C6, 7 Tantalium 0.47I£F, 16V 010 Signal, 1 N4148 C8 Ceramic .1I£F, 25V

C9 Ceramic 1000pF, 25V RESISTORS - All are carbon 1/4 watt, C10, 11 Ceramic .022I£F, 25V

5% unless noted C12 Ceramic 330pF, 50V C13 Ceramic .1I£F, 25V

R1 680 C14 Cerarr.ic 680pF, 50V R2 22K C15 Ceramic 330pF, 50V R3 91 1/4W, 1% C16 Ceramic 680pF, 50V R4 1.5K C17 Ceramic 33pF, 50V R5 470 C18 Electrolytic 1OI£F, 25V R6 680 C19-21 Ceramic .1 JLF, 25V

8

PARTS LIST SX 64 CPU PCB ASSEMBLY #250 410-01 (Continued)

C - Indicates Commodore Stocked Part Number

CAPACITORS (Continued) MISCELLANEOUS - PCB ASSY #1540048

C22-30 Ceramic .1JLF, 25V FB 1-10 Ferrite Bead C31 Electrolytic 100JLF, 16V C32, 33 Electrolytic 10JLF, 25V L1-3 Coil Inductor 100JLH C34-41 Ceramic .1 JLF, 25V L4,5 Coil Inductor 22JLH C50 Ceramic 1000pF, 25V L6 Coil Inductor 2.2JLH

Y1 Crystal Module 16 MHz 50ppm (NDK, Tyocom) 325566-01 Sub:

Crystal Module 16 MHz 100ppm (NDK, Tyocom, Kyocera) 325566-02

9

&0

C.ll r- I"";~

I ~ o,4&P tty

~O-U + - 0..1 3" ~-CfI 40._+__ C 1.0.cz"

~O---,

~" I

It·ut"

i I uG4

I 7447 ~: ~ .... I~ ------------~--------~

SX 64 FDD SCHEMATIC DIAGRAM

I'Iq11JC

~ . •. PI ~/WlI ~ p .. T

, I~ iV"'~ .... -I ~-#- -<l EAA'f

( "',C,> ~

t/. co 1'4

!-lEAP PIO

( Hl/< JlJ - SOp-). ,'1-1)-:;'

10

54 27

+ 28 I ~O~

i- II I PI.J 6 I

-.10

SO 2S

1 C5

CiM)

-

2 S56 UEJ

(lHJ C4-

't1

~ 2 LS74

IJE2

I

SX 64 1/0 PCB LAYOUT

I"')

'"

®~~)(~6 @ ~ ~ ~

~ ~~~c.~ .. ~ ~ ~

" 666@~ ~~~~,~ ~~~~~"<'I

~ I~ 6~ ( ~~

f

f

"-J V. ~~0) ~ ~ @ o cS ~ A~> 7406 @~ ~~>

L-J ~ tg ), tJD2

21. I 6'6~6~ cOR!

':1 I~; 2:1 PII 6 PI2

MPS 6526

uJ 6t

(lOt!. ) CI

I ~:~ MAS 6S26

UB2 (~)i\; 004. )

(8

4.066 S@(CRYS7J.L (Jet

~ I I

~ LQT-60X

'66~ I02J RA I

1:0 PIO I 2.

PIS

PLEASE NOTE:

PARTS LIST SX 6 4 I/O

PCB ASSEMBLY #250409-01

Commodore part numbers are provided for reference on!y and do not indicate the availability of parts from Commodore. Industry standard parts (Resistors, Capacitors, Connectors) should be secured locally.

INTEGRATED CIRCUITS RESISTOR PACK

UC1 4066 RA1 1K 8Pin UB2, 3 6526 CIA C 906108-02 UD2 7406 CAPACITORS UE2 74LS74A UE3 556 C1-5 Ceramic 0.1/tF, 25V

C6 Ceramic 0.47/tF, 50V TRANSISTORS C7 Ceramic 330pF, 50V

C8-11 Ceramic 0.1/tF, 25V TR1 2SC 945 C~ 2, 13 Elect 1O/tF, 25V

RESISTORS - All Values are in ohms-1/4 W MISCELLANEOUS 5% unless noted otherwise.

FB1-6 Ferrite Bead R1 220 R3 3.3K L1 Coil Inductor 2.2/tH R4 47K R5, 6, 7 1K UA1 Crystal Module 60Hz R8 100K R10 3.3K R11 47K

12

-..J

~~ \.l.l I-Z

(J) H ;) til

;i ....

m...J ~ IJ.I -c( (/) 0..%

~ UI .... X LJ.I

:-:-~

SX 64 1/0 SCHEMATIC DIAGRAM

,------------------_ .. _----...,

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

'O-~ -~~~~L-------~HrHHr_T_T_+_1

1 AIN

~

PI!) AC POWER

-~

....------_ .. -.-------...,

-

13

EXPANSSION PS J8 GN{) 9 1

+5V 3 2 + 5 V 30 3

1 R Q 8 4 WW 27 5

DDT CLOCK 1 6 1/01 2~ 1 frAME 6 8 EXROM 31 q J/OZ 5 'o ROML -~ I I

B7f 2 12 -~ '1 13 07 19 14 06 44 15 05 20 16 ~ .•.

04 45 1 7 03 21 18 02 46 19 01 22 20 DO 47 21

GNf) 18 22 OPEN 23 -

" 24 -~-"- 25 -

--

....a. ~

'EXPANSSION P8

GNV 34 I<'D~~ 28

RESET 33 NMI 32 S)Zf2 26

A I5 10 A/4- 35 A/3 II A/Z 36 All 12 AID 31 Al1 13 AS 38 A'l 14-Ab 3q A5 15 A4- (~O

A3 1.6 A2 41 A 1 17 AO 42

GN0 43 OPEN 48

II 49 'I 50

"----- ---

J8 z3 24 25 2b 27 2C(t Zq 30 31 I

32-33 34-~5 3~

3'1 3g 3q 4-0 £1-1 4.2. 4-3 4-4- ----

SX 64 EXPANSION PCB LAYOUT

CABU:: MARK P8 8 ._--:l

26 100 I 1 00 I I

I lb 1J

n 123

4 ' · (/- I I " I I I I 1 I

I I I I I I

I 1

I

I

CO ')0 I c a \25

II I I

II , I

~~~j

-.10

0'1

CTND DC.5V RESET CNT/ SPI CNT2 SP2 PC2 ATN ACqV ACqV &/VD GNO FVI&2 PBo PB, P132 PB3 PB4-PBs PB6 P B7 pAz crND

l<'DW%-OY

ROIIIV.1DYA f?ow2hvfA Row*t>YA PDT AY ROIN"h.p poT AX

vc

Ce.L O,6-0'J' CBLI!.:rOY B C(J.LZl:rDr 8 C9L 3/;py B

PDT 8"t C6Lo/8TW

PoT B Vc

9" 100. II~ 120 13 Q' Iii .., 15 ~ 11,9 170 18 ~ 19 " 20 -;;:. z~O I 300 3/~ 320 33~ 3~O 350 360 ,7 s80 aq ~ ~O

) /0 z~ , ~

! .3~ ! fJ.;::;. s .....

b" ~

7;: 8v

D 21 ~ I 22. ~ ~ 23 0 ,2'1-0

250 Z60 Z7~

28~ '-----

CONNECTOR --

- ,...., ~2 q3 -04-

P6

~S 06 "'7 ;:::8 ~q ~ /0 -Oil " 12 ;:::,q ;:: ..... 6 -oc

D "c """F -QH OJ OK -ol ~M ON '---

.---'" P3 ~2 ~ ...,3

~4-...,5 "6 ;::: ;::.q ..... '7 a8

'---

-~f

P2 ~2 ;;3 ;; ;;4-_5 ;26 -q

I

0'7 08

PCB ,

I

I

J

SX 64 EXPANSION SCHEMATIC DIAGRAM

USERS P&RT

(COMPOtJENT SiDE) t l 3 fI.. 5 6 7 8 q ID" 12

I::::::::::::' ABCDEFHJKLMW (SOLDER SIDE)

2Lf..P Edge COllOector

ceNTRal PBRT 1

q P f)- SUB Conector

C8NTR8L PBRT 2

qp -f)-SUB Umrctor

.J..U /-10LEX 5102-06

SRQ IN I GNP 2 ATN 3 CLK 4-DATA 5

RESET 6

JIb MOLEX 510?-O8

SYNC/LUM I

G-ND 2 AUD10 3

NC AUDIO IN

COLOR NC NC

soLP£-RUlfL

UJ:'er HalerjaJ AW~26

AWN IO{)'1 V w-I

J5

-----._----- -0 I 6P {)IN CO!J.NEf[OR

-- .. _-------- -oz ITS IJ..J/..6/) -OI-/oJ

---- -0 3 E)(t er,.,a I ferial - ---- -04- BUS

-----..----- -05 ----------- ~6

! m~ _________ -0 I SP DIN CON~ffTOR

-- -------- -02 TCS «"'90-(0 JI -- ------ -- -03

04- f x. ternat MOl1i ror 05

-- ------ -06 0 7 08

CONNECTOR PC B

9l ++ * o

II

+' R~32

SIDE PIN W ' 2 ~Q

-c::::>--c::::>- R 533

-c:::::J-R534

~ 0 l~\::J sfll°RN 0 ~ --wu-- ~o ~~1 ~1l VI DEO

0' ~ ]~I o£ ~ o~ ~o n»§~ I~-?: l201 o ~ ~nor1l'D e :;0 2 V~~0! j,... ~ .. '~. "209 ~S o Co R2t~~ ,., 0 ... ..... ~5 CO ~-c::::r n .... ~

~ ... I - , :> . _ ...... n G'\N "'0

~ ~ '" a AUDIO ~ ~ ~ \ ,,~"" 08-:J~ ~~ ftiJ ~ -

o 0 N ~~~ - \'\-' 59- IO~ \~;II)- ~ i n' 0 0 tn ~ C • /~f ~\' Ol! 11 Vy iLU ~L 1 ;to\\ '\ o~I~~ ~ cn~'" ~ W44 '~ NYn~ . ~C2 ~-

C610 N r:r.' \R 218 ~ n L60J i · 17.. ~ 0 'i-n-I/I ..... R-2-,a

r ~-~~ "-1"'C614IC601'1 ' i~~C \ ,l''b!; ' » ~tr ~ ~ I I I _W5_3 .-":'31ai:j~:, , \lll ~ I~ ~ ur 9 . I - _. ~ )'" 0 n -~ ~n lin I ~ Q& ' ./ I ~ ~O ~D dJ ~~." ;'w'" ~ ~ .,,,,,/ ",.;? ~ " c;1I C mit _ _ _ _ _ .. n - -C:::=:>-") I r;::l (7<.." n () 607 tf ~ CD ... I LJ £ ~ ~ § g Ii. .~ . ..:: C"'-OR w;;- a r' ! -< .. Ef II U ~ r:;;l u.~..r'\ W58 I'''' .0 ".1£1 1 9 v:i " V i iI ---

~ " .HOLO ~OO*j 19 D

~ O~ TIfjT V,HOLOCOfjT CUTOFF

o WD~ Q701~ ': J~'iOAnm LJ

1

O a R715 : .:.:- no!v~~~~~1 ~~ ~og' ~ I 7tO~ ; g ~ V~S R3~' ?! ~ ~~.;> 0 g g ~ 1 ~ -<::::::::r N = 0 . -4

C; C; 7>110 ~On 0 c~-<:=::>- on ao~"f ~ ; ~g~~() I~n ~ o~Q:, .m 1<:301 fl~cU ~ r-;

-O..al oU"'C;o '=..L ~ ~ ~ T301 ..... - a c (II eI( ')

f!!l O,~, 1--ti)V~ : ~ +

0", <3'> L R30a C306 ~-C3 1 - - r,. ~

•

++

11

nc1t ~~oCV a~ ~ .-4 •

1'E O~ (.)0 ~I> b·.d

V.lIN 11416 •• lIti

1_ •• -c:::::J-V. HEIHT

jS.'!Wtl C:fll

.~,*,'l.' ... ___ Y. . ER W08

en -a>< nO) m~

r-3: "0 <2 0_ C:-I -10

:a

PLEASE NOTE:

SX 64 MONITOR ASSEMBLY PARTS LIST

Commodore part numbers are provided for reference only and do not indicate the availability of parts from Commodore. Industry standard parts (Resistors, Capacitors, Connectors) should be secured locally.

CHASSIS PA RTS

V01 *CRT, 150BMB22-AF

* CRT Socket, C39158-0

OY1 *Oef . Yoke, C29131-VA (See note below)

T502 ·lE-F.B. Transf. CJ39587-00A

0907 Transistor, 2501118

0503 Transistor 1 2SC2335

R523 * Focus Pack, CJ49510-257

C001 * Ceramic Cap, 1000pF, 3KV, +100%,-0%

NOTE: IF DEFLECTION YOKE CJ26235-00A IS USED, THE FOLLOWING PARTS VALUES CHANGE:

VIDEO and AUDIO PCB 1124 A-2 DEF and POWER REG PCB 1124 A-1

CAPACITORS CAPACITORS

C515,517 * Polypropylene, 5600pF,630V, ± 5% C519, 520 * Elect, 4.7ILF,160V, +30%, -10%

C201 Elect, 1000ILF,25V, ±20% C206 Bi-Polar Elect, 4.7ILF,50V, ±20% C522 Mylar, .1ILF,50V, ±20%

*SAFETY COMPONENTS - Use EXA CT replacement ONLY.

17

DEF and POWER REG PCB 1123 A-1 CAPACITORS

INTEGRATED CIRCUITS C401,404 Bi-Polar Elect, 1/LF, 50V, ±20% C408 Tantalium, 1tLF, 25V, ± 10%

IC401 Vert., /LPC1 031 H2 C409, 410 Tantalium, 22/LF, 10V, ± 10% C412 Elect, 1000/LF, 25V, ±20% IC501 Hor., AN5750 C413 Elect, 0.22tLF, 50V, ±20% C509 Polypropylene, 5600pF, 50V, ±5%

TRANSISTORS C515,16, * Polyprooylene, 4700pF, 630V,±5% 17

0401 25A 1015 (Y, GR) C518 Mtl Mylar, 1.5/LF, 100V, ±5% 0501 25C1685 C520 * Polypropyie'le, 0.047/LF, 200V, ± 10% 0502 25A817A (O,Y) C523, 24 * Elect, 470/LF, 16V, +30%, -10% 0902 25A 1015 (Y, GR) C525 Elect, 4.7/LF, 160V, +30%, -10% 0903,4,5 25C1685 C901 * Elect, 100/LF, 35V, +30%, -10% 0906 25A817 A (O,Y) C904, 905 * Elect, 47O/LF, 35V, +30%, -10% 0907 25D1118 C907 Bi-Polar Elect, 10/LF, 25V,±20%

C9 13,914 * Elect, 2200/LF, 16V, +30%, -10% DIODES

0501 Zener R06 .8E (B2) TRANSFORMERS

0502 V19E T901 Pwr Drive, A76567-MA D504,5, V09E T501 Hor Drive, A76568-MA 6,7 T502 *F.B., CJ39587-00A D902 U19B T53 1 *5ide Pin, C39084-A D903 *Zener RD6.8E (B2) 0904 Zener Hz12 (8) D905 *Zener RD6.8E (82) MISCELLANEOUS

D906 152473H D907 *Zener RD13E (B1) F03 * Fuse, 2A, 125V

D908, 9 152473H

VIDEO and AUDIO PCB ASSY 1123 A-2 RESISTORS INTEGRATED CIRCUITS

R901 *Carbon, 8.2K, 1/4W, ± 5% IC201 Audio, HA 11401 R910 *Carbon, 9.1 K, 1/4W, ± 5% IC601 Video, AN5250 R917 Oxide Mtl Film, 1.5K, 1 W, ± 5% R923 *Carbon, 27K, 1/4W, ± 5% R924 *Carbon, 10K, 1/4W, ± 5% TRANSISTORS

R925 *Carbon, 68K, 1/4W, ± 5% R926 Mtl Film, 0.22, 2W, ± 10% 0201 25A562TM (V)

0601 25D1133

VARIABLE RESISTORS DIODES

R409 V. Hght, 22K D601 Zener, RD10E (B3) R413 V. Lin, 2.2K

R417 V. Center, 1 K D503 152076A

R508 Hor. Hold, 2.2K R909 *B1 Adj., 2K

* SAFETY COMPONENTS - Use EXACT replacement ONLY.

18

VIDEO and AUDIO CHROMA PCB ASSY 1123 A-3 PCB ASSY 1123 A-2 (Continued)

INTEGRATED CIRCUITS VARIABLE RESISTOR

! HA11247 IC301 R220 Sub Cont, 2K I

TRANSISTORS CAPACITORS

Q701,2,3 2SC2610 C201 Elect, 2200JLF, 16V, +30%, - 10% C202 Bi-Polar Elect, 10JLF, 16V, ±20% RESISTORS C203 Elect, 3.3JLF, 25V, +30%, -10% C204 Tantalium, 0.47JLF, 35V, ±20% R71 0, 11, Oxide Mtl Film, 12K, 1 W, ± 5% C206 Bi-Polar Elect, 3.3JLF, 50V, :r20% 12 C208 Tantalium, 33JLF, 16V, ±10% C210 Tantalium, 1JLF, 25V, ±20% C604 Bi-Polar Elect, 1 JLF, 50V, ±20% VARIABLE RESISTORS

C608 Elect, 1000JLF, 25V, ±20% C522 Bi-Polar Elect, 0.47JLF, 50V, ±20% R702 B. Cut-Off, 10K

R705 R. Cut-Off, 10K

MISCELLANEOUS R706 R. Drive, 500 R708 G. Cut-Off, 10K

FR526 *Fusible Resistor, 10, 1/4W, ±5% R709 G. Drive, 500

L504 Peaking Coil 100JLH L601 Peaking Coil 4.7JLH CAPACITORS

C303 Elect, 100JLF, 16V, ±20% C304 Elect, 0.47JLF, 50V, ±20% C306 Elect, 4.7JLF, 50V, ±20% C310 Trimmer C315 Elect, 33JLF, 16V, ±20%

MISCELLANEOUS

X301 Crystal A75746

* SAFETY COMPONENTS - Use EXACT replacement ONLY.

19

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POWER SU PPLY #250623 WIRI N G DIAGRAM

NAME W IRE NOTE Ot< SI6N't coLoR

/2V BRN ULI DO '7 NC AW (r l~ GND BlK ACqV BlU UL 1001}

AU-tV BLU AWf:t2l!-~v oj;2q 5V Oi2q ULfDO'l

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PARTS INFORMATION

S3WB40 RECTIFIER STACKS DronEs IV

+

S1 VB 1 0 REC TTF IER S"TACKS IJIODES I"V

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,JEDEC:TO-220AB

23

TROUBLESHOOTING GUIDE

TROUBLE CHECK POINT CAUSES A.ND TEST

NO OUTPUT----+--SOME SCRAP INSIDS------~-SHORT CIRCUIT BIY SCRA.P-Y~E=S~------------~ __

I 10K NO AC 9~-SUPPLEMENTARY CIRCUIT-~T2 TRANSFORMER SHORT OR OPEN......;;;;..YE;;;.,;S~------------<~ OUTPUT : OK T2 PRIMARY ;:"EAD \oJHITE TO WHITE 160"'200A

. J SECONDARY LEAD RED TO RED 9....,12 J"\.

: • •• ••••••.••• .••.••••••••••• • •.••• SECONDARY LEAD BLUE TO BLUE 3. 21'\i3. 7.n.

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J 'OK

IN CASE 0 RElCTIFIED VOLTAGE DC 12",15V REC1 SHOR'Il----cHECK BRIDGH DIODE----+-- REC1 S3WB40 SHORT OR OPEN--=.Y.::..E;;;;..S---------------+I',----1CHANGE REC1 FUSE IS CUT OK I"\j

--0-+ IN CASE OF I

Q1 SHORT ~HECK SWITCHING ______ ~- Q1 2SC2625 SHORT OR OPEN~Y_E_S ________________ ~

FUSE IS CU~ TRANSIS1~~ I B ~ : CHANGE Q1

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CHECK HIGH-SPEED D6 ESAC85-009 SHORT OR OPEN-Y=E~S----__________ ~ RECTIFY DIODE

OK

;

CHANGE D6

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12V CONTROL, _________ ---'-, _ CHECK BETWEEN COLLECTOR AND EMITTER CIRCUIT I OF 2SC2625 IN Q1 BY SYNCHRD-SCOPE

NO CHANGE A BOARD

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i h_O~JO~1

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OF 12V CONTROL

RE'-ALIGNMENT

CHANGE Q3 5V output : ONLY NO ----'---(CHECK SWITCHING ____ .--.;.,_ Q3 2SC2334 SHORT OR OPEN-"""YE;;;;.;S""-------------------OUTPUT TRANSISTOR

!

i I

JOK i B--<: CHECK DRIVE Q4 2SA1020-0orY SHORT OR OPEN YES TRANSISTOR ......;;;;..~--~---CHANGE Q4

, : I

! ;

I CHANGE D7

NO I CHANGE A BOARD ! i OF 5V CONTROL

!OK S-KE

CHECK HlbH-SPEED D7 ESAC82-004C

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. FK , A~A 5V CONTR/OL CHElC BETWEEN EMITTER OF 2SC2334 AND CIRCUIT GRUND IN Q4 BY SYNCHRO~SOOPE ~

~LfLJ T

12V

I I , zO-3 o)rS

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POWER SUPPLY #250623 SCHEMATIC DIAGRAM

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·CIfO POt:YESTER Tru.4 CAPACIT.DR (104"1") .METAUdZEOPOLYESTER FILMCAPACITO·R C-C) -CERAMK: CAPACITOR

NOTE ALL CAPACITAfCE ARE IN MffiOFARADS A'LL RBIS TANCE V ALlES ARE IN-oH-MS t4w. UNLESS oTHERWSE SPECIFI-ED IN n-E DIAGRAM.

~ CRlTlCAL COMR)NENT

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