Manual: CSM2000 MECH SM SAMSUNG EN

DIGITAL COMCORDER DECK

CSM-2000

MECHANICAL ™anv2 ® File with the SERVICE MANUAL.

1. Operation

2. Adjustment

3. Disassembly and Reassembly

1. Operation

1-1 Nomenclature

THHIHUIIH

= IN | | - Wt

2 @

3 @ , ®

- @

® 6 ©

7 ® 8 ) Sas ©

© 10 20)

@

Fig ti

@ BASE DRUM @ BRAKE S @® ARM PINCH

@ MOTOR LOADING @ REEL DISK S @ COVER REEL

~® GEAR WHEEL @ IDLER @ LEVER EJECT

@ GEAR MODE SWITCH @ HOLDER FPC SUB @® REEL DISK T

@ GUIDE TENSION CAM @ DRUM | @ BRAKE PULLY

@ ARM TENSION @® MOTOR CAPSTAN @ SWITCH MIC

@ BRAKE TENSION @ REVIEW ARM @ BRAKE MAIN T

Samsung Electronics (Faat

9o od 9Oe © D

@ BASE DRUM

@ MOTOR LOADING

® GEAR WHEEL

@ GEAR MODE SWITCH

@ GUIDE TENSION CAM

© POLE BASE S

@ SLIDE MAIN

@ GEAR CAM MAIN

@ LEVER CAM

venenroes

hese | Kp

= / Xp EO) (OY TSE AEE TEA T

Fig 1-2

@ DRUM

@ HOLDER FPC SUB

@ MOTOR CAPSTAN

® GUIDE RAIL

@ GEAR CAPSTAN

® ARM PINCH

@ POLE BASE T

@ TIMMING BELT

@ GEAR PULLY

9S 6 ©6698 66

Samsung Electt nics

1-2 Switch Modes NN

Table 1-1 Switch Mode Code

EJECT =00:0 = =40-0 Open housing

51° ~ 59° Idler Rotate and stop in loading mode

70° ~ 140.8 Capstan Rotate in unload mode

LD

LZ

199.89° ~ 207.85 stop

2600.6 -~ 288.5 In REC/PB/CUE/FF/PAUSE

* Fig is based Eject Mode.

common

signal 1

signal 2

Samsung Electronics 420

1-3 Operation

1-3-1 Gear Train

Moter Loading @ rotates (Gear Worm Motor @ — Gear Worm Loading @)

i; Gear Wheel @ rotates

ak Gear Mode Switch @ rotates

ub Gear Cam Main @ rotates

MOTOR LOADING @

GEAR WORM MOTOR @

GEAR WORM LOADING @

GEAR WHEEL@

GEAR MODE SWITCH @

GEAR CAM MAIN @

Fig 1-4

ee | | - Samsung Electronics

Operation

1-3-2 Chassis Sub

Motor Loading @ rotates.

i Gear Wheel @ rotates.

1 Gear Mode Switch @ rotates.

i Gear Cam Main @ rotates.

Lever Cam @ rotates.

[ Chassis Sub @ moves.

MOTOR LOADING @

GEAR WHEEL @

GEAR MODE SWITCH @

GEAR CAM MAIN @

LEVER CAM @

SUB CHASSIS @

Samsung Electronics 1-5

Operation

1-8-3 Brake S(SUB/MAIN)


ieee @ slides.

Slide Main @ slides in direction of arrow.

1 Brakes S @ released or operated to Reel Disk S @ by slide Main @.

MOTOR LOADING @ /

“QP FSS .

—,

«.

SLIDE MAIN ©

REEL DISK S ©

BRAKE S @

CHASSIS SUB @

Fig. 1=6

ne nN eran a eSSSS SSSSSSSSGEA, SSSSSES

1-6 Samsung Electrin ics

1-3-4 Brake T


seca ak @ slides.

Slide Main @ slides in direction of arrow.

1 Brake T @ released or operated to Reel disk T @ by slide Main ©

MOTOR LOADING @

CHASSIS SUB @

Fig 1-7

Samsung Electronics

; S cA

ne , ‘f) A) ws ny 7

wy2 ’ NY, | . oy

)))) | Ae 2 OR &

Operation

© SLIDE MAIN

© BRAKE MAIN T

@® REEL DISK T

Operation

1-3-5 Arm Tension


fieiacia ie @ slides.

Arm Tension @ slides in direction of arrow by Guide tension cam

@ and cam curve A®

Brake tension @ released or operated connection with Arm

Tension.

After Loading finished, Arm Tension @ is controled by cam curve © of Gear Mode Switch @.

MOTOR LOADING @

ARM TENSION @

GUIDE TENSION CAM @

CAM CURVE A @ SPRING TENSION @

CAM CURVE B @

GEAR MODE SWITCH @

BRAKE TENSION @

CHASSIS SUB @

Fig 1-8

176 Samsung Electonics

Operation

1-3-6 Arm Pinch


{ Chassis Sub @ moves.

| Arm Pinch @ rotates cam curve A @ of Chassis Sub @.

| { After Chassis Sub @ is finished loading, slider main @ slides in

direction of arrow.

{ Pinch Roller @ contacts shaft of Motor capstan @.

t Motor loading @ rotates in reverse.

{ Slide main @ moves in reverse direction of arrow.

Pinch Roller @ released from shaft of Motor Capstan @ by spring

force of spring Lever pinch ®.

MOTOR LOADING @

SLIDE MAIN @

CHASSIS SUB @

Fig 1-9

MOTOR CAPSTAN @

PINCH ROLLER @

ARM PINCH @

SPRING LEVER PINCH @

CAM CURVE A @

Lee ee eee ener eee rer ere n en rne ereaaaereeeaee ——————N

Samsung Electronics ee,

Operation

1-8-7 Arm Review


t Chassis Sub @ moves.

1 Arm Review ® simultaneously rotates clockwise and translates

via cam curve @ of Chassis Main @

MOTOR LOADING @

CHASSIS MAIN @ PR ARM REVIEW @

CAM CURVE @ CHASSIS SUB @

Fid-l=10

A Sg SUS

1-10 samsung Electrm ics

Operation

1-3-8 Pole Base S, T


Gear Wheel @ rotates.

1 Gear Mode Switch ® rotates.

{ Gear Cam Main @ rotates.

{ Gear connector @ rotates.

' Arm Loading S and T are actuated by Gear Loading S @ and T @.

{ Pole Base S @ and T @ slide along S and T rails.

i Pole Base S @ and T @ attach to V home of Base Drum @.

MOTOR LOADING @ BASE DRUM @

GEAR WHEEL @ one as g

GEAR MODE SWITCH @ one % ox oS OX tg TBpl te Sl Ae eae POLE BASE S ® ALS a

Pde vases 4 x

> GEAR CONNECTOR @

GEAR CAM MAIN @

Fig) ta

Samsung Electronics

GEAR LOADING S @

GEAR LOADING T @

POLE BASE T ®

Operation

1-3-9 Reel Driving

Motor Capstan @ rotates.

Gear Capstan @ rotates.

Belt timming © transmits rotation to Gear pully @.

| { | Gear Idler @ engages Reel Disk T @ or Reel Disk S @.

{ Reel Disk T @ or Reel Disk S @ rotates.

DRUM MOTOR CAPSTAN @

GEAR CAPSTAN @

BELT TIMMING® GEAR IDLER @

REEL DISK S @- REEL DISK T @

GEAR PULLY @

Fig 112

12 | Samsung Elecronics

1-4 Mode Transitions

1-4-1 Cassette in — Cassette down

By Catch @ of Housing release the Cassette-lid lock

Chassis Sub s Cover stopper@ opens cassette-lid

By Key Release @ of Cover reel releases reel-lock of Cassette tape.

Housing is locked by Lever lock @ and Chassis Sub s catch @

By Lever lock @ pushed Lever Eject @ and turns on S/W Cassette-in @.

COVER STOPPER @

KEY RELEASE @

LEVER EJECT ¢ the 5. fe LEVER LOCK @

pe SO SWITCH C-In @ SUB CATCH @ ii

FIG 1-13

Samsung Electronics | ee!

Operation

1-4-2 Loading

Motor Loading rotates.

| Gear Worm Loading Motor Gear Worm Loading Gear Wheel Gear Mode switch Gear Cam Main rotate.

Chassis Sub moves

in direction of

arrow.

* This operation makes tape loading.

Arm Tension, Arm

Review and Arm

Pinch Roller move.

Gear Connecter,

Gear Loading S and | rotate.

Chassis Sub stops at Loading-

complete position Arm Loading S,T

move in direction of arrows and pole Base §,T silde.

Pole Base S, 1

attach to Base

Drum.

Pinch Roller attaches |} Brake S released Motor Loading to Capstan Shaft. from Reel S. stops.

— Pinch Roller rotates in reverse.

Pinch Roller rotates forward.

Y Pinch Roller rotates

via Silder Main and

De ig eg, De ge ee Les ee ge ee RT Be og hen ae ee eg ea Rn es ce ce ecm cm sr cc el os es a ce ss ae oe eee ee eee em ee

Motor Loading rotates In reverse

and then stips.

Brake T

released from

Reel |.

When Moror Loading is in reverse, Silde

Main moves to right.

Brake S,T are

operated by Main Motor Loading

rotates reverse

and then stops.

Silde and contact Reel S,T for braking

detaches from Capstan Shaft.

Motor Capstan rotates.

Gear Capstan, Belt

Timing, Clutch and Gear Idler rotate in

order.

Y Reel T rotates.

| Motor Capstan stops.

Motor Castan rotates

silghtly(for shifting idler to Reel S)and then stops.

Motor Capstan rotates back.ward silntly and

forward

Reel S, rotites.

Motor Capstans tops.

Samsung Elecronics

Operation

MOTOR LOADING

BASE DRUM DRUM

MOTOR CAPSTHN

ARM REVIEW

ARM TENSION GEAR CAPSTAN

GEAR IDLER

ARM PINCH ROLLER SWITCH C-IN

BRAKE PULLY

SWITCH MIC

BRAKE TENSION

REEL DISK S

BRAKE S$

AQOLUER-ErS 2Ub

MOTOR CAPSTAN

MOTOR LOADING

GEAR WHEEL

GEAR MODE SWITCH

GUIDE TENSION CAM

GEAR CAPSTAN ARM PINCH

GEAR CAM MAIN SLIDE MAIN

GEAR PULLY LEVER CAM

DRUM

BRAKE S

BRAKE T

rig. t=14


Operation

1-4-3 Stop — Play

Motor Loading rotates Forward. Drum rotates forward

Gear Warm Motor, Gear Warm

Loading Gear Wheel, Gear Mode switch Gear cam Main rotates

Silder Main moves in direction of

arrow.

Brake S.T released from Reel S,T

Motor Loading stops.

Arm Tension is moved in direction of arrow by Switch Mode s Cam Curve

causing tension to tape.

Pinch Roller moves in direction of arrow and atiches to Capstan Shaft. which puts the tape

between roller and Capstan Shaft.

Motor Capstan rotates forward.

Gear Capstan, Belt Timing, Gear pully Gear Idier rotate in order.

Reel S rotates. Reel T rotates.

——— a ee ee ee ee ee ee ee ee ey ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee me ees cy ee eee ee eee ce ess ee ee ee ee es eee ee eee ee ee es ee SG SE ee ee ee ee a ee LAS

ARM TENSION

Gear Mode switch cam

AiG. 1216

1S Samsung Electn mics

Operation

MOTOR LOADING

BASE DRUM

REEL DISK S

BRAKE S

MOTOR LOADING

GEAR WHEEL

GEAR MODE SWITCH

GUIDE TENSION CAM

GEAR CAM MAIN

LEVER CAM

Samsung Electronics

DRUM

GEAR IDLER

SWITCH C-IN

BRAKE PULLY

SWITCH MIC

BRAKE MAIN T

HOLDER FPC SUB

MOTOR CAPSTAN

GEAR CAPSTAN

SLIDE MAIN

GEAR PULLY

Operation

1-4-4 Stop > FF

Push FF Key.

Motor Loading rotates foward. Drum rotates foward.

Gear Worm Motor, Gear Worm Loading Gear Wheel, Gear Mode Switch

Gear Cam Main rotates

Slider Main moves in direction Arm Tension is moved in direction of

of arrow arrow by Cam curve of Switch Mode

causing tension to tape.

Pinch Roller moves in direction of arrow and attaches to Capstan Shaft, which puts the tape between roller

and Capstan Shaft.

Motor Capstan rotates forward. |

Brake S, T released from Reel S,T


* Motor Capstan rotates 30 times faster 2. imi f than PLAY speed. Gear Capstan, Belt Timing. Ga

Pully, Gear Idler rotate in order.

oe oe eee ee ee ee ee ee ee ee SS Se Se ED NS SD SS SD ee Ce GS SD Ge SD SED Ge Oe ee Ee SE Ge SD GED SED Gy GE ET GD GP SES ED Ge ce ew CUS Ome! com Oe es EE OS Ge ome CP ED eS OE Gee ee Oe ee ee OS So ee

Pinch Roller rotates 30 times Reel T rotates 380 times faster | faster tnan PLAY speed. | — tnan PLAY speed.

— NS Sm cS EU ES SS SE ST SS GS SSS Ga a ee ee mS CGS Ce eS Se eC Gee Se GSE GR SP SO OL GS Ge eS en OD eT Oe SS US eS SS SD GU GES SD OU eS nD ome one os mA, om om ae

* This operation feeds tape 30 times faster than PLAY speed.

PoSSsSS=-S5 rene anne

1-18 Samsung Electnmics

Operation

MOTOR LOADING

BASE DRUM re

GEAR-IDLER

REEL DISKS SWITCH C-IN

aes BRAKE PULLY

SWITCH MIC

BRAKE MAIN T

MOTOR LOADING RM onrsees ea ret

GEAR WHEEL MOTOR CAPSTAN

GEAR MODE SWITCH GEAR CAPSTAN

GUIDE TENSION CAM


GEAR PULEY LEVER CAM

ie a


Operation

1-4-5 Stop — REW

Motor Loading rotates forward.

Gear Worm Motor Gear Worm Loading Gear Wheel, Gear Mode Switch

Gear Cam Main rotate.

Silder Main moves in

direction of arrow.

Brake S released

from Reel S.,


Motor Capstan rotates reverse.

Gear Capstan, Belt Timming, Gear pully and Gear Idler rotate in order.

Reel totates 30

times faster than

PLAY speed.

Reel S rotates 30

times faster than

PLAY speed. —

ee ae |

* This operation feeds tape 30 times faster than PLAY mode.

Arm Tension is moved in direction of arrow by switch cam of gear mode causing tension to tape

Pinch Roller moves in direction of arrow and attaches to

Capstan Shaft. which puts the tape between roller and

capstan shaft.

Drum rotates forward

* Motor Capstan rotates about 30 times faster than PLAY mode.

Samsung Electonics

Operation

HUI

ay OOUOLOORE

@ =. _—

MOTOR LOADING \al aro ae sh ny BASE DRUM Md Ve \

J) Saaes) \ [SE (ot

, "I ey Be | mo

\ fo GEAR IDLER

REEL DISK S SWITCH C-IN BRAKE PULLY

BRAKE S SWITCH MIC

— BRAKE MAIN T



GUIDE TENSION


LEVER CAM GEAR PULLY

Fig: JG

Samsung Electronics 7 12d

Operation

1-4-6 Stop — REC

Motor Loading rotates forward. Drum rotates forward.

Gear Worm Motor, Gear Worm

Loading Gear Wheel, Gear Mode switch, Gear Cam Main rotate.

Silder Main moves in direction Arm Tension is moved in direction of arrow. arrow by Cam of Switch Mode.

Brake S, T released from

Reel S, T

! t ‘ 1

Pinch Roller moves in direction of arrow

and attaches to Capstan Shaft

Motor Capstan rotates in | reverse. Motor Loading stops.

Gear Capstan, Belt Timing. Gear | Pully, and Gear Idler rotate in order. penis

r —— a ae See ee See See ce ane cee Fe ces ees ee ee eee ee ee ee ee ee ee ee ee eee ee ee ee ee ee ee ee ee eee ee ee ee ee ee ee eee ce eee ee eee es ee ee esse ee es ee ye

Reel | rotates. Reel S rotates.

Cee =. bo eo oe

Motor Capstan stops.

Reel T stops. Reel S stops.

* Drum is rotating during REC/PAUSE

Motor Capstan rotates forward. Pinch Roller rotates.

Reel T rotates.

* ‘Tape is wound to Reel T by this operation.

1-22 Samsung Electo nics

Operation

MOTOR LOADING

L@ (2S Aare | 4 ao DRUM

BASE DRUM hn | £// Same) \ tp [oe <c : phd a a GEAR IDLER ag 5a |

REEL DISK S 2) Sal _

S| BRAKE S af) || oo aie SWITCH MIC

= BRAKE MAIN T

MOTOR LOADING HOLDER FPG * sue



GUIDE TENSION CAM


LEVER CAM GEAR PULLY

Fig 1-19

Samsung Electronics 123

Operation

1-4-7 Stop — Unload

Drum rotates forward. Motor Loading rotates in reverse.

Gear Worm Motor, Gear

Wheel Loading, Gear Wheel Worm, Gear Mode Switch, Gear Cam Main rotate.

Gear Connector, Gear Loading S,T rotates.

Arm Loading S, T move in direction of arrow and

rum Stops. Pole Base S, T silde.

Motor Capstan rotates forward.

Gear Capstan, Belt Timming, Gear Pully and

Gear Idler rotate in order.

Reel T rotates

* Tape is wound to cassette.

Chassis Sub moves in

direction of arrow.

Chassis Sub stops unloading completes

position.

Arm Tension, Arm Review

and Arm Pinch Roller move.

* S/W Push is turned off.

Lever Eject moves in direction of arrow by Silde Main and push Lever Lock to release

of Housing.


Housing raised

(Eject completed)

Motor Loading rotates forward.

Y Lever Eject moves back

by Slider Main to lock

Motor Capstan stops

Housing.


1-24 Samsung Electra ics

Operation

MOTOR LOADING DRUM BASE DRUM MOTOR CAPSTAN

ARM TENSION ARM PINCH ROLLER

BRAKE TENSION BEY ed

REEL DISK § “, ( @B)\ 4251 — REEL DISK T ANS Ay || GEAR IDLER

BRAKE $ AO BRAKE MAIN T

MOTOR LOADING MOTOR CAPSTAN



GEAR PULLY

LEVER CAM

eb g O),

om fo Sh

Re JO ea: @ NS [e}

eel lone

C/ 4

LEVER EJECT

SWITCH C-In

Fig 1420


Operation

1-4-8 CUE

Reel S rotates approx. 10.5 times faster Reel T rotates approx. 10.5 times faster than PLAY mode. than PLAY mode.

* Tape fed by Motor Capstan is wound up to Reel T.

le ee

LL SS SSeS sts

1-26 samsung Elecr onics

REE DISK oS

GEAR CLUTCH

Frids tc)

Samsung Electronics

Operation

DRUM

MOTOR CAPSTAN

GEAR CAPSTAN

BELT TIMMING

REEL DISK T

GEAR ADEE

ea

Operation

1-4-9 REW

* Act in PLAY mode. Motor Capstan Stops

Motor Capstan rotates in reverse approx. 9.5 times faster than PLAY mode

Gear Capstan, Belt timming,Gear pully and Gear

Idler rotate in oncler

Reel S rotates in reverse

approx. 9.5 times faster tnan PLAY mode.

Reel T rotates in reverse

approx. 9.5 times faster than PLAY mode.

ia as aes alae | Ls ee eel

* Tape fed by Motor Capstan is wound up to Reel S.

Le EP SSS SSS SSS SSS Shs ss ens SSNS

1-28 Samsung Electrics

Operation

DRUM

MOTOR CAPSTAN

GEAR CAPSTAN

BELT TIMMING

REEL DISK S REEL DISK T

GEAR ID CER GEAR PULLY

FIG: l=22


1=30 Samsung Electionics

2. Adjustment

2-1 Operation Without Housing Assembly

1. Remove the Housing Ass y from the recorder unit. 4. Press the S/W Push(Keep ON status)to start 2. Connect the mechanical chassis to the recorder loading, and push the PLAY Key.(Cover the

circuit to supply voltage. Top/End sensor with black tape, because 3. Set to Unload mode. they do not operate.)

CONNECTED TO THE RECORDER CIRCUIT

SWITCH PUSH

Fig 2-1

2-2 Setting Mechanical Mode(Without Recorder Circuit)

1. Set the power-supply output to approx.38V. | ee Re ‘ease

loading or unloading). : 3. Supply the voltage to the Motor Loading,

and set to the desired mode. Unloadng

(DC POWER SUPPLY) Ulf

Sumsung Electronics aa

2-3 Maintenance

Carry out the following periodic maintenance 2-3-2 Cleaning of Tape Path checks in order to fully exercise all functions, operations and tape. 1. In EJECT mode, clean the tape path

After repairing, service the set as follows: system(from Pole Tension Pl through Pole Review P7, Pinch Roller and Capstan

2-3-1 Cleaning of Drum Assembly Shaft) and the Lower Drum. Using the lens tissue soaked in ethyl alcohol.

1. Gently apply lens tissue soaked in ethyl

alcohol to the Drum assembly. Clean the Upper Drum assembly while rotating it slowly counterclockwise(by

hand).

PA (ee jerry Y P6

=

|| mes P/

Alcoa pA PS PINCH ROLLER

la 8 "

if

FIG.2-3

2-2 Sumsung Electonics

Adjustment se a SS SSS SSS SS

9-3-3 Periodic Maintenance and Check List

When overhauling, refer to the following table.

Tape path system

Never let oil get Capstan Shaft ba

tear cpan | on to to the tape

Driving path surface.

Sustem

Performance

Brake system

PB, REV torque

measurement

Confirmation

* When lubrication bearings, be sure to keep

the oil free of dust. (Oil contaminated with

dust might cause the bearings to wear out or

seize. )

* A “drop of oil is defined as the amount attached to the tip of a # 2mm stick as shown

in Fig. 2-4.

Fig 2-4

Sumsung Electronics o-3

2-4 Mechanical Check and Adjustment

2-4-1 Tension Regulator Adjustment 2-4-1(C) REASSEMBLY

2-4-1(A) DISASSEMBLY 1. Refer to 3-2 to mount the Housing Ass’ y

L Refer to 3-2 to remove the Housing Ass y

2-4-1(B) ADJUSTMENT

1. Set to PB mode (without cassette tape). 2. Check that the distance between external

surface of Holder Loading and center of

Arm Tension is 0O~1mm, (Fig 2-5 ) 3. If necessary, proceed to step 4.

4. If the Arm Tension @ is located inside the

position specified, adjust the Band Adjust

Tension @ toward arrow A. (If it is located

outside, adjust toward arrow B.)

ARM TENSION @

CAP ADJUSTMANT

FIGwZ=o

2-4 | Sumsung Electronics

2-4-2 Back Tension Confirmation

1. Set up the cassette-torque tape.

2.Set to CAMERA mode, push the

EDIT(+) KEY and check that the

torque value of Reel S is 4.5+0.5g.cm.

2-4-3 PB/REV Torque check

1. Set up the cassette torque tape.

2.Set to CAMERA mode, Push the

EDIT(+)Key and check that the torque

value of Reel T is 7.5+3g.cm.

3. Push the EDIT(-) Key and check that

the torque value of Reel S is 12.5+

3g.cm.

4. If necessary, replace the defective Gear

pully Ass y.

Adjustment

2-4-4 Reel Table Height Check

2-4-4(a) REMOVAL | 1. Refer to 3-2 : Remove the Housing Ass y.

2. Refer to 3-3 : Remove the Idler Ass y

2-4-4(b) CHECK

1. Using vernier calipers, check the following

distances : From the upper surface of the

PCB Reel to the resting surfaces of Reel

S,T table should each be 3.90. 1mm

2-4-4(c) MOUNTING 1. Refer to 3-3 : Mount the Idler Ass y 2. Refer to 3-2 : Mount the Housing Ass y

A,B: 3.940.1mm

Reel Disk S table resting surface

Reel Disk T table resting surface

Chassis Sub

Fig 2-6

Sumsung Electronics 25

2-5 Tape Path Adjustment

2-5-1 Preparation for Adjustment outlet

1. Clean the tape running surface(Poles, @ Normal

Drum, Capstan Shaft, Pinch Roller).

2. Refer to the Service Manual(page 5-1).

Observe the PB RF signal and Head

Switching Pulse on an oscilloscope.

3. Play back the alignment tape.

4. Check that the waveform of the RF signal

is flatat both inlet and outlet(Fig. 2-7 A) If not flat (B or C in Fig 2-7), do

adjustments 2-5-2 through 2-5-5. EDetocvat cutie

Defect at inlet

Pigi2e-7

S Reel T Reel

fig 2-8

2-6 | Samsung Electonics

Adjustment

2-5-2 Tracking adjustment 2-5-3 P7 Adjustment

1. Play Back the alignment tape. 1. Play back the alignment tape, and confirm

2. Turn P3 to flatten the waveform at the inlet that the tape is not twisted between the

3. Turn P5 to flatten the waveform at the outlet Guide Roller T and Capstan. (If the tape is

twisted, turn P7, Fig 2-10)

2. Set to REV mode and observe the outlet

waveform of PB RF signal.(Fig 2-12)

3. If the outlet waveform is out-of-spec, turn P7

Capstan p5 counterclockwise, and redo steps | and 2. Pe

Fig 2-9

Fig 2-10

Fig-2=— 1

Samsung Electronics OF

2-5-4 Check After Adjustment

2-5-4(a) TRACKING CHECK

1. Play back the alignment tape.

2. Confirm that the minimum amplitude

value(E min.)is 80% of the maximum

value(E max.)or larger. (Fig. 2-12)

3. Confirm that no large fluctuation occur on

the waveform. (Fig. 2-13)

Emin Emax

Fig 2-12

Fig 2-13

Adjustment

2-5-4(b) CUE AND REV CHECK

1. Play back the alignment tape, and set to

REV mode.

Confirm that the waveform peaks have a

uniform Pitch.(Fig 2-14 A)

If the track pitch is not uniform, do

section 2-5-2 (Tracking adjustment)and 2-

5-3(P7 adjustment)

2. Set to CUE mode.

Confirm that the waveform peaks still

have a uniform pitch. (Fig. 2-14 B)

If the track pitch is not uniform, do

section 2-5-2(Tracking Adjustment)

Fig 2-14

Samsung Elecronics

Adjustment

2-§-5(C) RISE TIME CHECK 2-5-4(D) TAPE PATH CHECK

1. Play back the alignment tape. 1. In CUE and REV modes, check that the

2. Set to playback mode, and confirm that tape is not curled around the Pl, P3, Pd

the waveform of PB RF signal rises flat upper flange and P7 upper/Lower flanges.

within 3 seconds. Also confirm that the

tape is not twisted or curled around the

Pinch Roller. (Fig 2-15)

3. Run the tape in CUE/REV and FF/REW

modes, then playback. Confirm the

waveform of PB RF signal rises flat within

3 seconds. Also confirm that the tape is

not twisted or curled around the Pinch

Roller.

4. Repeat steps 2. and 3.

D7 Capstan p5

Fig 2-15

>

From the S-Reel To the T Reel

FIG.2=16


3. Disassembly and Reassembly

3-1 How to Load and Unload (Setting the Mechanical Modes)

1. Set the power-supply output to approximately 5V, and connect it to the Motor Loading.

2. Choose the polarity depending on whether loading or unloading. (See Table 3-1)

3. Supply the voltage to the Motor Loading.

Table 3-1

Unloading

Fig 8-1 Loading and UnLoading

Oa ea aad

Sum sung Electronics | 2-4

8-2 Housing

3-2-1 Disassembly 3-2-2 Reassembly 1. Mount the Cam L and Cam R of Lever

Housing @ to stud Housing L @ and stud 1. Push the Lever(see arrow, Detail A) turn Housing R@.

the Lever Lock@in the direction of arrow 2. Put the Hook L @ and Hook R into the

B, and open the Housing. Sub chassis @, pushing them in the

2. Remove the screw @ ,and separate the direction of A, and then reassembled

Hook L and Hook R and then lift it. Housing Ass y @ into the Sub chassis @.

3. Separate the Lever L @ and Lever R from 3. Secure the screw @

the Stud-housing L @ and stud-housing R

@, and then lift the Housing Ass y.

HOUSING ASS Y @

LEFT, RIGHT HOOK @

SCREW 1EA @

STUD HOUSING? @

SUB CHASSIS @

FIG 3-2 HOUSING

orc Sumsung Electonics

— WASHER-SLIT @

——\

CaN \4

chassis in the reverse direction of arrow.

3. Secure the screw@.

install the Washer Slit @ . 2. Mount the Cover Reel Ass y @ to the Sub

1. Fit the Idler Ass y @ into the Pin, then 3-3-2 Reassembly

4 ALY

i

he

\ ¢

Tw HY VEk(k

emaliis

L Wb *

AX ol - C2

aN

YY

aé Os

g

Nu

NY

pie

:

Reel Ass y @ in the direction of arrow.

SCREW 1EA @

2. Remove the Washer Slit @, then lift the

COVER-REEL ASS Y @

1. Remove the screw @, then lift the Cover

Idler Ass y @.

8-3 Cover Reel Ass y, Idler Ass y

3-3-1 Disassembly

ix

s @

3-3

Fig 38-3 Idler

Sumsung Electronics

3-4 Sub Chassis

1. Push the arm Tension Ass y ® in the 3-4-2 Reassembly 3-4-1 Disassembly

direction of arrow A, insert Pin Lever Cam

@ of main-chassis Ass y @ into the Sub- chassis cam @ of Sub-chassis Ass y @

ay ‘o)

Gy 5 @

©

os

LLI

To

=

a

=

‘5S

L

Liu

oO

jm)

a

=

= a)

Oo

®

2

Nee

(aa)

PD

mn

&

—

Sp)

cas

=

S

es

oO

=

a

ee.

=

=

oT

A

she.

oD

2

Laas

=

>

oa

LUI

o

2

nM

YO

or

Hm

nN

WZ

2 om

&

=

oe

S

o4G

PY

®

coat

> ae

ee

ee 2S

8

9 om aD)

rns

wn N oD | R= S & e) ft

>

@m)

"wm 6p) << 2

5

8

2

A,

wm

GB

_-

aren)

eS

So

8

S

1

o

P

>—_

>

a

ae

<<

:

:

=

©

OQ

Lu

YD

op)

<

|

“i

cD

cp)

ep)

©

De

ane

=>

<t

<

oO

<

re

EQ

&

ooe0,s,

C5

D

S

op)

SOD

es

a=

=

Sis

Thess

i

ue

O

2e44

=

«a

an =

i

©

>

=]

D

ra

NOY)

-PIN @ GUIDE PIN LEVER CAM

|

MAIN CHASSIS ASS Y @

Fig 3-4 Sub Deck

Sumsung Electro nics 3-4

3-5 Arm-Tension and Arm-Review

3-5-2 Reassembly 1. Insert the Arm Review @ into the pinl @. 2. After Tension Release @ assembled to the

pin 3 @, Brake-Tension @ insert in the

3-5-1 Disassembly pin 3. | | | |

1. Separate the spring-Tension @ from Hook 3. When Arm-Tension @ insert in the pin 2

© of sub-chassis. ©, pin of Arm-Tension @ assembled into

2. Remove the Washer-slit®, and then lift up cam part @ of Brake Tension.

the Arm-Tension @. 4. Assambled the Washer-slit @.

3. Lift up the Brake-Tension @ and the 5. Hang the spring Tension @ to the hook of

Tension Release @. Brake Tension @ and hook of sub-chassis

4. Lift up the Arm-Review®. 0.

SPRING TENSION @

BRAKE TENSION @ CAM PART BRAKE TENSION @

TENSION RELEASE @

WASHER SLIT @ ————®

ARM TENSION PIN @ a

SUB CHASSIS ARM REVIEW @ PIN2@

PIN3 @

SUB CHASSIS @

Fig 3-5 Arm Review and Arm Tension

Sumsung Electronics 3-5

3-6 Reel Disk S, T, Brake S, Brake Main T, Brake Pully, Lever Eject

3-6-1 Disassembly _ 3-6-2 Reassembly 1. Separate the spring Brake S @ from the spring 1. Mount the Lever Eject

hook @, and then lift it up. 2. Remove the washer-slit @, lift up the Brake S @.

3. Separate the spring Main Brake T @ from the

spring hook @, lift up the Brake Main T @ 2. Mount the Brake pully @, secure the screw 4. Lift up the Reel S @, T @. | 1EA ©. 5. Remove the screw 1EA @, lift the Brake pully @. 3. Insert the washer slit @.

6. Lift up the Lever Eject @. 4. Mount the Brake main T @, hang the spring ae Main Brake T @ to the spring hook @.

o. After Mount the Brake S @ and insert the washer slit @, and then hang the spring

Brake S @ to the spring hook @.

ti Abs REEL DISK S @—{W GW) — REEL DISK T @

®———_ SPRING MAIN BRAKE T @ SPRING BRAKE S @ ——* a

WASHER SLIT @ ——¢I “it _—— BRAKE MAIN T @ BRAKES ® e — SCREW 1EA@

BRAKE PULLY @ 5 A 2 <2. LEVER EJECT ©

SPRING HOOK @ SUB CHASSIS STOPPER @

Fig 8-6 RELL DISK S, T, BRAKE S, BRAKE MAIN T, BRAKE PULLY, LEVER EJECT

3-6 Sumsung Electronics

3-7 DRUM

3-7-1 Disassembly 3-7-2 Reassembly 1. Mount and insert the Drum @ to the

Bosses @. 2. Insert the spring plate Drum @, and

secure the screw @.

1. Remove 1 screw @ and then remove the

spring plate Drum @. 2. Remove the Drum @.

DRUM @

HEAD TIP @

BASE DRUM @

2 BOSS ©

Fig 8-7 DRUM

ena arama A CC csc czas a a aee aeanaeacmmmraacnntana ma ee ee ee pe

Sumsung Electronics | Orr

3-8 Guide Rail Ass y

3-8-1 Disassembly

1. Remove the screw 3 @ in the up and the

screw 1 @ in the back, lift up the Guide rail ass y @.

2. Separate it and turn to count clock wise

the Guider Roller S @ and T @, and then separate the spring Guide Roller 2 @.

GUIDE ROLLERS @

SPRING GUIDE ROLLER 2EA @

GUIDE RAIL ASS Y @

POLE BASE S @

MAIN CHASSIS @

3-8-2 Reassembly 1. Insert the Spring Guide Roller 2 @ to the

pole Base S © and T @, and then assemble the Guide Roller S @ and T @ as turn to count clock wise.

2. After Pole Base S @ and T © unloading mode, and then assemble Guide Rail Assy @ to the Main chassis @ and secure the screw

3 @ in the up and the screw 1 in the back @.

GUIDE ROLLER T @

SCREW 3EA @

DRUM BASE ©

POLE BASE T @

Fig 38-8 Guide Rail

3-8 Sumsung Electronics

38-9 Motor Loading, Guide Tension Cam, Gear Wheel

3-9-1 Disassembly 3-9-2 Reassembly 1. Eliminate pt welding 4 part @. | Reassemble in reverse order

2. Remove the screw 1 @ and the Hooke 2 @, and then Lift up the Loading ass y @.

3. Remove the screw 1, Lift up the Guide

Tension cam @ 4. Remove the washer slit @, Lift up the

Gear wheel @

MOTOR LOADING ASS’ Y @ SCREW 1EA @

HOOK 2EA @

SCREW 1EA ©

GUIDE TENSION CAM @

Fig 8-9 Motor Loading, Guide Tension Cam, Gear Wheel


8-10 Motor Capstan, Holder FPC Sub, Arm Pinch Roller, Slide Main

3-10-1 Disassembly 3-10-2 Reassembly Reassembly in reverse order.

FPC Sub @. 2. Remove the screw 2 @, lift up the motor

Capstan @ 3. Remove the washer slit @, separate the “A’

part of spring Lever pinch @ to the spring

hook of Arm pinch Roller @. ._ Lift up the Arm pinch Roller @. . Lift up the spring Lever pinch ©. | _Turn Gear cam main @ in the reverse

direction of Arrow B to the End, and then lift

the slide main @ in the direction of arrow D.

HD Oe

HOLDER FPC SUB @

SCREW1 @

MAIN SLIDE @ MOTOR CAPSTAN @

WASHER SLIT @

ARM PINCH POLLER @ “A

SPRING LEVER PINCH @

GEAR CAM MAIN @ fo TY Ps MAIN CHASSIS @

MAIN CHASSIS HOOK @ MAIN CHASSIS HOOK @

Fig 3-10 MOTOR CAPSTAN, HOLDER FPC SUB, ARM PINCH ROLLER, SLIDE MAIN.

oat 8, Sumsung Electronics

3-11 Gear Cam Main, Lever Cam, Gear Connector _ eee

em

3-11-1 Disassembly 3-11-2 Reassembly 1. After lift the Gear Cam Main @, and then 1. Align the hole of the Gear Connector @ and

lift up the Lever Cam @. the Main chassis hole with 2. Lift the Gear Connector @. Timing(B) (HOLE)

2. Align the hole of the Lever Cam @ and the Main Chassis hole with Timming(A) (HOLE)

3. Align the hole of the Gear Cam Main @ and the Main Chassis hole with

Timing(C) (HOLE)

GEAR CAM MAIN @ GEAR MODE SWITCH

TIMING(C) |.- 7 ASSENBLE POINT (HOLE) \

GEAR CAM MAIN

\

" | DETAIL D x peak,

\ (@ 37 GEAR CONNECTOR © LEVER CAM @ ee

TIMING(A) |“ (HOLE) *

Fig 8-11 Gear Cam Main, Lever Cam, Gear Connetor

eee eee ee eee eee ee ee eee ——


3-12 Gear Pully, Belt Timing, Gear Capstan

3-12-2 Reassembly 3-12-1 Disassembly 1. Rmove the washer slit @, Lift the Gear 1. Mount the Gear Pully @ and hang the

Capstan @ Belt Timing @ on the Gear Pully @ 2. Separate the Belt Timing @ , Lift the Gear 2. Hang the Belt timing ® to the upper Gear

pully @ | of the Gear Capstan @ and mount the Gear Capstan@.

3. Assemble the washer slit @.

BELT TIMING @

>———— WASHER SLIT @

GEAR CAPSTAN @

GEAR PULLY @

Fig 3-12 Gear pully, Belt timing. Gear Capstan

eS

OF lc | Sumsung Electronics

Documents

Manual: CSM2000 MECH SM SAMSUNG EN