Sansui SC-636 User manual

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SERVICE MUAL
STEREO CASSETTE TAPE DECK
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sc-636
This service manual is designed for service engineers to repair,
adjust, maintain and order the replacement parts of the SC-636 cor-
rectly. When ordering the parts, use the stock number and parts
name specifically referring to the Exploded Views, Parts Location and
Parts Lists.
For general usage and maintenance of the unit, please refer to the
Operating lnstructions attached with the unit.
TABLE OF GONTENTS
Section Title Page
1. SPECIFICATIONS 2
2. BLOGK DIAGRAM AND
LEVEL DIAGRAMS 3
2-1. BlockDiagram ...' 3
2-2. Level D iugru rs 4
3. ADJUSTMENTS 5
3-1. Head Ad justment 5
3-1-1. REa/P B Head Ad justment 5
3-1-2. Erase Adjustment 5
3-2. Playback Level Adjustment 5
3-3. High Frequency Equalization Adjustment 5
3-4. VU Meter Level Adjustment 5
3-5. Recording Bias Adjustment ' 5
3-5-1. Setiing TAPE SELECTOR Switch
to NOnUnl 5
3-5-2. Setting TAPE SELECTOR Switch
to CHROMIUM 6
3-6. REC/PB Level Adjustment " " 6
3-6-L Setting TAPE SELECTOR Switch
to NORMAL 6
3-6-2. Setting TAPE SELECTOR Switch
toCHROUIUM .'''" 7
3-7. DolbY Circuit Adiustment ' ' 7
3-8. B ias MPX F ilter Ad justment 7
3-9. Pinch-roller Pressure Adjustment ' ' 7
3-l0. Torque Adjustment " " 7
4. TROUBLESHOOTING CHART 8
4-1. TROUBLESHOOTING ON THE
ELECTRICALSECTION ......8
4-1-L Troubleshooting on Power
Supply Section 8
4-1-2. Troubleshooting on Recording
System 8, 9
4-1-3. Piayback System Troubles ' ' 9, 10
4-1-4. Troubles in Both Recordingl
PlaybackMode.... "1O
Section Title Page
4-1-5. Auto Shut-off Circuit Troubles ' ' ' ' 10
4-1-6. Dolby Circuit Troubles ' ' 10
4-2. TROUBLESHOOTINC ON THE
MECHANICAL SECTION ............11
4-2-L PLAY lnoPerative ' 11
4-2-2. FAST FORWARD lnoperative ' ' ' 'L2
4-2-3. REWIND lnoPerative " "I2
4-2-4. PAUSE lnoPerative ' 'L2
4-2-5. lncorrect Tape Speed ' ' ' 'L2
4-2-6. Excessive Wow and Flutter ' ' ' ' "L2
4-2-T.lncorrectBrake """""L2
5. PARTS LOCATIONS AND PARTS LISTS..13
5-1. GA-1191 REC/PB AmPlifier
Circuit Board. . 13, L4
5-2. GA-1190 Power SuPPIY and
AutoStoPCircuit Board ''''15
5-3. G-1 167 Dolby Circuit Board L6, L7
5-4. G-1160 Switch Circuit Board ' ' ' 'I7
5-5. G-1180 Cds Circuit Board ' 'L7
5-6. C-1185 Fuse Circuit " "L7
5-7. GA-1189 Leve! Circuit Board ' ' ' ' 18
5-8. OtherPartsList ''''18
6. DISASSEMBLY WITH EXPLODED VIEWS
AND PARTS LISTS . .19
6-1. Disassembly of the Cabinet and
Etectrical Sections . .19,20
6-2. DisassemblY of the Mechanism
(Top View) 2L,22
6-.3. Disassembly of the Mechanism
(Bottom View) 23,24
7. SCHEMATIC DIAGRAM . ,25
8. REPLACEMENT OF MAIN PARTS. . . .26
9. PACKING LIST ..26
10. ACCESSORY PARTS LIST. . . .26
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1. SPEGIFICATIONS
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TRACK . .4-track (2-ch. stereo)
TAPE SPEED ..4.Bcm/sec (1 % ips.)
TAPE STAN DAR D PH IL IPS cassette standard
HEADS . . REC/PB ferrite head
ERASE ferrite head
MOTOR hysteresis synchronous
rype
TAPE DRIVINC SYSTEM . . belt driving system
WOW AND FLUTTER within 0.12% (W.R.M.S.)
TAPE SPEED ACCURACY . .within +1.5%
FAST WIND TIME within 70 seconds (C-60)
FREQUENCY RESPONSE (REC/PB)
NORMAL (1. H) TAPE. . . . 30 to 13,000H2 (35 to
'10,000H2 -f- 3.0d B)
CHROMIUM TAPE......30 to'16,000H2 (35 to
'13,000H2 i 3.0d8)
srcNAL TO NOrSE RATIO (REC/PB)
CHROMIUM TAPE (without dolby noise reduction
effect) . . better than 50dB (weighted)
DOLBY NOISE REDUCTION EFFECT
. . better than BdB (above 5kHz)
CHANNEL SEPARATION . . better than 3BdB at 1,000H2
ERASURE FACTOR. . . . more than 60dB at '1,000H2
TNPUT SENSTTIVITY AND |MPEDANCE (OVU, 1,000H2)
MIC (LEFT, RICHT) . .0.5mV 600^,'l0k0
MIC (Cf NTER) 0.5mV 600-'l0k0
LINE .... ..70mV 100kO
DIN .... ..14mV 30kO
OUTPUT LEVEL (OVU 1,000H2)
LINE i... ..0.56V
DIN ..0.s6v
HEADPHONES ....0.12mW/BO
BIAS FREQUENCY ....B5kHz
OTHERS
SEMICONDUCTORS
TRANSISTORS O'''''''35
FETs .... ...... 2
ZENER DIODES.... 3
DIODES.... ......11
VARISTORS. . B
CdS 1
POWER VOLTAGE '100, 117, 220,240V, 50160ïz
POWER CONSUMPTION . .22W (rated)
DIMENSIONS 408mm (1 6%') W
1'lBm m (41%') H
2g5rn m (11%') D
WE IGHT 6.7kg (14.8 !bs) net.
B.6kg (19.0 lbs) Packed
* Design and specifications subiect to change without notice for
im prove ments.
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2, BLOCK DIAGRAM AND LEVEL DIAGRAMS
2-L Block Diagram
Mrc
J701
J703
CENTER MIC
REC/PB HEII)
G-11504
G-1191
l-eVet- COttfnOt-
CIRCUIT
loK EQ, VR02
G-1160A SWITCH CIRCUIT
REC/PB AMP CIRCUIT
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DOLBY CIRCUIT
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Cds CIRCUIT
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G-1160A
11
SWITCH CIRCUIT
1. NORMAL I.
2. CHROMIUM 2.
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PAUSE 54 F.F SW Só
POWER 55 REW SW 57
I. OFF PLAY SW 58
2. ON
ERASE HEAD
X
G-1190
D605
- Pr-rw ER SrrPF
POW ER SU PPLY CIRCU IT
PLAY REC SIo-L TAPE SELECTOR S2o-f OOI.BY
I . PLAY
2. REC
N.R. S3o, b
OUT
IN
3

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b2-2. level Diagrams
*Each number (Oo, O@,O@ ) indicated in Level
Diagrams undermentioned corresponds to the number
in Block Diagram.
*Each number @, @, @....-> Recording Level
*Each number O, O, O. . .-> playback Level
1. MIC/LINE volume control. . . . Maximum
2. CENTER MIC volume control Maximum
800mV(3dB)
70mV (- 18dB )
l5mV(-3l.5dB)
5mV (-41dB )
0.5mv(-62d8)
Mtc
800mV(3dB)
l0mv(-35d8)
SmV(-41d8)
0.5mV(-62d8 )
3. INPUT..........1kHz Sine Wave
(output impedance
audio oscillator)
Note: Each vottage value is for reference
by a VTVM. ln some recorders, the actuat
is in minor difference from the reference
of 600O at an
and measured
voltage value
value.
RECORDI
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OdB:560mV
560mV(OdB ) s6omv(0dB ) 560mV(0dB )580mV(0.2d8 )
0mV(-7dB)
mV(-9dB)
62mY(-l9dB )
N0RMAL tape
560mv(OdB) 560mv(OdB) 560mv(0dB) 580mv(0.2d8) 560mv(OdB)
I lOmV(-l4.8dB)
62mV(-l9dB)
,CHR0ttllUM tape
80mV(-l7dB)
65mV (l 8.7d8 )
'.4.
t
K
0dB:560mV
LINE IN
28mV(-26d8)
4

sc-636
3. ADJUSTMENTS
*The List of Sansu i Test Tapes
NCT-F63 SCT-F63 63Hz Playback f requency check
NCT.FI KSCT.Fl KlkHz Playback f requency check
NCT.FlOK SCT.FlOK 10kHz Playback f requency check,
REC/PB head adjustment
Note: The above test tapes in each colu m n can be used in
::iïï" ;j,:lï iïi ïï' :J,,lÍi;' l§,'1"":Ïió,ïï:':n ;J
different recorded levels between NCT- and SCT- tapes.
3-1 . Head Adiustment (See tig. 3-1 )
3-1-'l . REC/PB Head Adjustment
1) Connect a VTVM to the LINE OUTPUT terminals
(1, R-ch).
2) Play back the 10 kHz test tape (SCT-F10K).
Adjust the azimuth adjusting screw for the maximum
reading on the VTVM at both channels.
3-'l -2. Erase Head Adiustment
1) Any adjustment on the erase head is not necessary.
* Confirm only that recorded signals on one channel
of tape are completely erased and ones on another
channel are not.
Fig. 3-1
3-2. Playback Level Adiustment
(See Fig. 3-3)
1) Connect a VTVM to the LINE OUTPUT terminals
(1, R-ch).
2) Play back the 400 Hz test tape (SCT-L 400).
Adjust VR03 for L-ch and VR04 for R-ch on G-1191 so
that the output level of playback signal on VTVM
will indicate 560mV at 400H2.
* Play back the 63 Hz, l kHz and 10 kHz test tapes
(SCT-F63, SCT-F1 K and SCT-F1OK) and make sure
that the both outputs are within 0+ 3dB against that
of 1kHz.
3-3. HiSh Frequen cy Equalization
Adiustment (See Fig. 3-3)
1) Connect a VTVM to the LINE OUTPUT terminals (1,
R-ch)
2) Play back the lkHz test tape (SCT-F 1K) and 10kHz
test tape (SCT-F 10K)
Make adjustment of VR01 for L-ch and VR02 for R-ch
on F-1191 so that the difference of output levels be-
tween lkH..z and 10kH z will be+08.
3-4. VU Meter Level Adiustment
(See Fig. 3-3)
1) Set the MIC/LINE LEVEL volumes to maximum.
2) Connect a VTVM to the LINE OUTPUT terminals
(1, R-ch).
3) Supply the l kHz signal from an audio signal genera-
tor to the LINE INPUT terminals (1, R-ch).
4) Push on the PAUSE button and set the unit in the
record mode after setting a Normal test tape (SCT-
FC86).
5) Adjust the level volume of the audio signal generator
for obtaining 560 mV on the VTVM.
6) Adjust VR09 for L-ch and VR10 for R-ch on C-1191
to obtain 0dB on the VU meters.
3-5. Recording Bias Adiustment
(See Fig. 3-2)
3-5-'1 . Setting TAPE SELECTOR Switch to
NORMAL
1) Set the MIC/LINE LEVEL volumes to maximum.
2) Connect a VTVM to the LINE OUTPUT terminals
(1, R-ch).
3) Supply the l kHz signal from an audio signal genera-
tor to the LINE INPUT terminals (1, R-ch).
4) Push on the PAUSE button and set the unit in the
record mode after setting a Normal test tape (SCf-
rc86)
5) Adjust the level volume of the audio signal genera-
tor for obtaining 560mV on the VTVM.
* Make sure that the reading of the VU meter is 0dB.
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Description
NCT-L4OO
SCT-L4OO 400H2 Playback level adjustment,
VU'meter level check
NCT-S3K
SCT-S3K 3k Hz Speed, wow & flutter
check
NCT-FC86
SCT.FC86 Record i n g bias adj ustment,
REC/PB level adjustment,
All-over frequency (REC/
PB) check
NCT.FCR
SCT.FCR
(A) (B)
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6) Change the lkïz signal from 560mV to 56mV
( - 2od B).
Push off the PAUSE button and record.
Then, change the signal from 'l kHz to 10kHz (56mV)
and record.
7) Play back the lkHz and 1OkHz,signal, then confirm
that difference of output levels between lk1z and
10kHz is +0dB (nanrely, confirm that the output
levels of both signals wh ich must be 56mV on VTVM
res pect ive ly).
B) If the level of 10kHz signal is under 56mV, as com-
pared with the level of 1kHz, turn VR0'l for L-ch and
vR04 for R-ch on c-1190 counterclockwise from
conductor side.
lf it is over 56mV, turn them clockwise from con-
ductor side. When adjusting the above, repeat the
steps 6),7) until the difference of both output levels
(1kHz and 10kHz) are OdB (56mV) on VTVM.
3-5-2. Setting TAPE SELECTOR switch to
CHROMIUM
3-6. REC/PB Level Adiustment
(See Fig. 3-3)
3-6-'1 . Setting TAPE SETECTOR switch to
NORMAL
1) Set the MIC/LINE LEVEL volumes to maximum.
2) Connect a VTVM to the LINE OUTPUT terminals (1,
R -ch).
3) Supply the l kHz signal from an audio signal g"nera-
tor to the LINE INPUT terminals (1, R-ch).
4) Push on the PAUSE button and set the unit in the
record mode using a Normal test tape (SCT-FCB6).
5) Ad just the level vo lu me for obtain ing 56mV o n the
VTVM.
6) Push off the PAUSE button, then record the lkHz
signal.
7) Play back the lkHz signal and confirm the output
level of each channel which must be 56mV on
VTVM.
B) lf the indication of output level on each channel is
under 56mV, turn VR05 for L-ch and VR06 for R-ch
on C -1191 counterclockwise or if it is over 56mV,
turn them clockwise from conductor side so that the
output level 56mV may be obtained.
Repeat the above steps 6),7) a few times until the
indication on VTVM will be exactly 56mV.
1)
2)
3)
4)
Perform step 1) through 3) of 3-5-1 .
Push on the PAUSE button and set the unit in the
record mode using a Chromium test tape (SCT-FCR).
Perform steps 5), 6) and 7) of 3-5-1.
lf the level of 10kHz signal is under 56mV (OdB) on
VTVM, turn VR03 for L-ch and VR02 for R-ch on C-
1190 counterclockwise from conductor side.
lf it is over 56mV, turn them clockwise from con-
ductor side. When ad justing above, repeat the step
3) until the difference of output levels (1kHz and
10kHz) are OdB (56mV) on VTVM.
Fig. 3-2
vR03 vR01 vR02 vR04
Fig. 3-3
L-ch
R-ch
G- 1191
vR09
VU level
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sG-636
3-6-2. Setting TAPE SELECTOR switch to
CHROMIUM
1) Perform steps 1) throrgh 3) of 3-6-1.
2) Push on the PAUSE button and set the unit in the
record mode using the Chrom iu m test tape (SCT-
FCR).
3) Perform steps 5), 6) and 7) of 3-6-1.
4) lf the indication of output level on each channel is
under 56mV, turn VR07 for L-ch and VROB for R-ch
on C-1191 counterclockwise or if it is over 56mV,
turn them clockwise from conductor side so that the
output level 56mV may be exactly obtained.
Repeat the above step 3) a few times until the
indication on VTVM will be exactly 56mV.
3-7. Dolby Circuit Adiustment
(See FiS. 3-4)
1) Set the MICiLINE LEVEL volume to maximum and
DOLBY switch to OUT.
2) Turn VR01 clockwise (viewed from the bottom side)
and VR02 counterclockwise (viewed from the bottom
side.)
3) Connect a VTVM respectirely between the terminal
01 and ground for L-ch, and terminal 04 and ground
for R-ch on F-1 167.
4) Supply the 5kHz signal from an audio signal genera-
tor to the LINE INPUT terminals (1, R-ch).
5) Push on the PAUSE button and set the unit in the
record mode after setting a Normal test tape (SCT-
FC86)
6) Adjust the output level volume of the audio signal
generator for obtaining 17.SmV on the VTVM.
7) Cround TP01 and TP02 and set the DOLBY switch to
tN.
B) Adjust VR03 for L-ch, and VR04 for R-ch on F-1167
until the VTVM reads 55.3mV (+10d8) higher posi-
tion from 17.smV.
9) Disconnect TP01 and TP02 from ground.
10) Adjust VR01 for L-ch, and VR02 for R-ch on F-1167
until the VTVM reads 4O.9mV (-2dB) lower posi-
tion from 55.3mV.
11) Cround TP01 and TP02 again.
Make sure that the VTVM connected between the
terminal 01 and ground for L-ch, and the 04 and
ground for R-ch reads 55.3mV (+ 2dB) higher posi-
tio n.
tig. 3-4
3-8. Bias MPX Filter Adiustment
(See tig. 3-3)
*When replacing the RE CIPB amp circuit board (C -1191),
adjust the Bias MPX Filter.
1) Set the Mlc/LINE LEVEL volumes to maximum.
2) Connect a VTVM to the LINE OUTPUT terminals
(1, R-ch).
3) Srpply the 19kHz,10mV signal from an audio signal
generator to the LINE INPUT terminals (1, R-ch).
4) Push on the PAUSE button and set the unit in the
record mode after setting a Normal test tape (SCT-
FC86).
5) Adjust 103 for L-ch and 104 for R-ch on C-1191 Íor
obtaining the minimum reading on VTVM.
3-9. Pinch-roller Pressure Adiustment
(See Fig. 3-5)
*After pushing on the PLAY button with or without
cassette tape, perform the following procedures (pow-
er switch ON).
1) Hook the spring scale at point @ of the roller arm as
shown in Fig. 3-5.
2) Pull the spring scale eventually to the arrow direc-
tion until the pinch-roller stops running.
3) SIide the spring retainer (Part name, "Hook, Pinch-
roller sprin g") bY loosing the screw so that the scale
indicates 330+308.
4) Screw it up, then confirm that no considerable varia-
tion of the pressure indication on the scale is in-
cluded in PLAYBACK and STOP process.
tig. 3-5
3-10. Torque Adistment
*No any torque adjustments are necessary.
Each torque is fixed as follows:
Take-up torque (PLAYBACK) ...... more than 3$g-cm
Take-up torque (FAST FORWARD) . .60-'110g-cm
Take-up torque (REWIND) 60-'110g-cm
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vR01
capstan shaft
pinch-roller roller arm
spring retainer
VRO3 vRo2 vRo4 c

4. TROUBLESHOOTING CHART
4-1. TROUBLESHOOTING ON THE ETECTRICAT
4-1-1 . Troubleshooting on Power Supply Section
Symptom Check Point
1-1. Output 19V not supplied to point @ on C-'1190
1) VU lamps not Iighted
2) VU lamps Iighted
1-2. Excessive hum
4-1-2. Troubleshooting on Recording System
2-1. Output 560mV not supplied to LINE OUTPUT
B0mV (chromlum tape), 65mV (normal tape)
SECTION
Cau se
Defective power cord ptug
Power cord opens
Defective power switch 55
Power fuse F01 open
Defective voltage selecto r, PU7O1
Defective power transformer, T701
Def ective d io de, D601 ^., D 604 (10D -1 ) o n
G-1190
Defective transistor, TR601 (2SC1061) on
G-1190
Defective zener d iode, 2D601 (RD-19A)
o n C-1190
Defective C60 4 (1OO1'F 25V), C603 (100f2
25V), C6A2 Q200pF 35V) on C-1190
Defective transistor, TR601 (2SC1061) on
G-1190
Due to magnetic f lux from power
transformer
lmperfect contact of LINE lN Jack
lmperfect contact of 51-e (S1 -f) on C-1191
Defective TR01, TR03 (TR02, TR04) on
c-1191
lmperfect contact of VR01 (VR02) on
G-1189
lmperfect contact of MIC Jack
lmperfect contact of CENTER MIC Jack
Defective TR60'l (TR602) on C-1189
I m perf ect co n tact of VR601 o n C -1 1 89
lmperfect of 51 -a (S1-c) on F-1191
Defective TR05, TR07, TR09 (TR06, TROB,
TR10) o n C-1191
L0'1, 103, (L02, 104) on C-1191 open
I mperfect co ntact of 51 -b, 51 -d, S'l -g, 51-h
o n C-1191
Defective TR13 (TR14) on C-1191
I mperfect co ntact of headpho ne jack , )TO4
1.
2.
3.
4.
5.
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6.
7.
10.
21.
22.
23.
24.
2) Output
absent at terminat @ (30) on C-1191
2-2 ?yl;,H[:i HEADPHONE Jack
present at LINE OUT t-25.
L26.
2-3. VU meter inoperative
I 1) Output present at LINE OUT 27. lmperfect
G-1191
28. Defective
29. Defective
30. Defective
contact of VR09 (VR10) on
TR15 (TR16) on C-1191
D01 , D03 (D02, D04) on C-1191
VU meter, M701 (M702)
a

sc-636
2-4.
2-5.
Symptom Check Point
Record ing syste m inoperative
(Output present at LINE OUT)
Defective record ing o n C-1191
1) Output 250mV (chromium tape),200mV (normal tape)
absent at terminul EJ (32) on C-1191 Defective VR05, VR07 (VR06, VR0B) on
G-1191
lmperfect co ntact of Tape Selector switch,
52-a^,f on C-1160A
Defective TR11 (TR1 2) on C -1191
Open 105 (106) on C-1191
Defective OSC, Block on C-1190
lmperfect contact of VR01, VR03 (VR02,
VR04) on C-1190
lmperfect contact of Tape Selector switch,
S2-b, d, e, f on C-1160A
Defective RECI?B head, YC-303 (ln case
of no output at both REC and PLAYBACK)
No output at REC and PLAYBACK
Open REC lamp, PL705
lmperfect contact of REC lamp and socket
lmproper setting of Tape Selector switch
lmproper bias current
Defective recording amp.
D irty head
Loose adjustment of erase head
Dirty head
Defective head
Defective oscillator block
Defective REC/PB head
I m perf ect co ntact of S1-b (St -d) o n C -1191
Defective TR01, TR03 (TR02, TR04) on
G-1191
lmperfect contact of VR03 (VR04) on
c-1191
lmperfect contact of 51 -g (S1 -h) on C-1191
Defective TR05, TR07, TR09 (TR06, TROB,
TR10) on C -1191
Open L0'1, 103 (102, L04) on G -1191
31. Def ective TR01,
c-1167
Cause
TR03 (TR02, TR04) o nv
r
ï,
2)
3)
Output BOmV (chromium tape),65mV (normal tape)
absent at terminat @(30) on C-1160A 1Í
Output '19.5V absent at terminal 4 on G-1190-i6
32.
33.
37.
39.
40.
2-6. Recording system and Oscillator circuit operative
2-7. lmperfect contact of tape and head
2-8. Record lamp not lighted
| 1) Record ing syste m operative
2-9. Excessive distortion in recording
2-10. No erasing
4-nl-3. Playback System Troubles
3-1 . Output 560mV absent at LINE OUT
í) Output '10mV absent at the collector of TR03
(TR04) on C-1191
41
t_;;
43.
44.
45.
46.
47.
48.
49.
50.
51 .
52.
53.
2) Output 560mV absent at terminal @| (20) on C -1191
*to page 10
54.
55.
56.
9

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Symptom Check Point
*frgm page 9
| -3) Output560mVabsentatL|NEOUT
Cause
I mperfect co ntact of 51 -k (St - l) o n C-1191
Defective TR01, TR03 (TR02, TR04) on
c-1167
See 2-2 in Troubleshooting on Recording
Syste m
See 2-3 in Troubleshooting on Recording
Syste m
r- 58.
I sg.
3-2.
3 -3.
Output 110mV absent at HEADPHONE Jack
No indication on VU meter
Dolby circuit i noperative
(S/N ratio not improved)
lncorrect f req uency respo nse
(Excessive or less high-frequency signals)
61.
60.
73.
74.
75.
76.
77.
4-1-4. Troubles in Both RecordinglPlayback Mode
4-1 . Less high-frequency signals
4-2. Distorted or weak sound
4-3. Excess ive n o ise
62. D irty head
63. Worn-Out head
64. Loose head position
65. Loose ad justment of head
66. Loose adjustment of equ alizer amp.
67. Defective pressure pad of cassette tape
68. Defective Cassette tape
69, Over input level
70. Dirty head
71. Loose adjustment of Head
72. lmproper setting of Tape Selector switch
(NORMAL or CHROMIUM) in recording
Defective capacitor in amplifier
Excessive tape h iss
Defective transistor on amp. section
Defective capacitor (resistor) or imperfect
co ntact of vo lu me co ntro I
Due to externa I no ise
Magnetized head78.
4-'l-5. Auto Shut-off
5-1 . Auto Shut-off Circuit Circuit Troubles
inoperative 79. Defective CdS lamp MKY-SH on C-1180
80. Defective TR02, TR03, TR04 on C-1190
81 . Defective plunger solenoid P5701
82. Defective D606, D607 , 2D602 o n C-1190
4-1-6. Dolby Circuit Troubles
As one Dolby circuit is actuated in both Recording and Playback mode by switching, the same type of trouble
may occur in both modes. ln case Recording and Playback are normal, but Dolby circuit does not Íunction, it
means that TR0'1, TR03 (TR02, TR04), 51-K (S1-l), S3-a (S3-b) are normal.
6-1.
6-2.
83. Defective TR05, TR07 (TR06, TR0B) on
c-1167
84. Defective FET01 (FET02) on C-1 167
85. Defective or loose ad justment of VR01
(VR02) and VR03 (VR04) on C -1167
86. Defective D01 (D02), D03, D05 (D04, D06),
D07 (D0B) on C-1167
87. Defective TR09 (TR10) on G -1167
Y
to

G*-63G
4.2. TROUBTESHOOTING ON THE MECHANICAT SECTION
motor
Capstan Belt
(Drive Belt)
FORWARD Switch
Lever ( Right) F.F.
ï,
L
REWIND switch
ever(Left) F.F.
F. F. Pu lley ( ld ler)
spring (Lef t) F.F.
Brake Shoe
Reel Hub Ass'y (Lef t)
spring ( Rieht) F.F.
Brake Shoe
Reel Hub Ass'y
( Rieht)
PLAY ldler Ass'y
Capstan
(Capstan Ass'y
whee!)
4-2-"1. PLAY I noperative
Symptom
1-1 . Capsta n ino perative
1-2. Capstan operative
(((((((o
\rpring, PLAY ldler
ld ler, reverse
Ítg. 4-1
Check Point Cau se
Motor not rotating
Broken drive belt
Slippery drive belt and capstan wheel
Drive belt slipped off
lmproper pressure of pinch-roller to
Capstan (See Fig. 3-5 on Page 7)
S Iippery p i nch ro I ler
Weak reel torque
Slippery capstan wheel and ldler
Weak motor torque due to drop of Power
Line Voltage (AC)
Slippery idler and right reel hub
Weak tongue of spring, PLAY idler
(see Fig. 4-2 on page 12)
1.
2.
3.
4.
5.
6.
7.
B.
9.
10.
ll
,11.

G
X Capstan whee
X Right reel hub
X ldler
X Drive pulley
Fig.4-3
Y
v
*lf the rotating parts marked* in Fig. 4-3 are slippery
Carbon tetrach loride.
4-2-2. FAST TORWARD lnoperative
Symptom Check Point
2-1 . No tape movement in FAST FORWARD
4-2-3. REWI N D Inoperative
3-1. No tape movement in REWIND
4-2-4. PAUSE lnoperative
(PAUSE does not function mechanically in REWIND mode)
4-1. Returning to STOP mode
4-2-5. lncorrect Tape Speed
4-2-6. Excessive Wow and Flutte
or oily, clean the parts by Sansu i head cleaner (SHC-1) or
12.
13.
14.
15.
16.
17.
18.
19.
24.
21.
Cause
lmperfect contact between FF id ler and
id ler reverse
Slippery idler, reverse and right reel hub
S Iippery FF belt
Brake not released
lmperfect contact of FAST FORWARD
Sw itc h, S6
lmperfect contact between FF idler and
Ieft reel hub
Slippery FF id ler and left reel hub
Brake not released
Slippery FF belt
I mperfect co ntact of REWIN D sw itc h, 57
lmperfect contact of PAUSE sw,itch, 54
Defective motor, MI701
Stretched drive belt
Defective capstan
lmproper pressure of pinch ro ller to
capstan (See Fig. 3-5 on page 7)
Change in shape or quality of pinch roller
Stretched drive belt
Defective cassette tape
Oily or slippery reel hub
22.
4.
5.
6.
7.
B.
9,
0.
2
2
2
2
2
2
3r
Capstan Belt Sprihg, PLAY ldler
Fig. 4-2
Y4-2-7. lncorrect Brake
l2

asc.636
5. PARTS LOCATIONS AND PARTS LISTS
5-1. GA-1191 REC/PB Amplifier CircUit BOard (stock No. Tl2oouocomplete Circuit Board cA-l1el)
Conductor Side
{+
r3

Parts List
Parts No. Stock No. Descri ption Parts No. Stock No. Descri ption
Pos iti o nPos it io n
I
í
TRor, oz 030ó091, 2
TRos, o+ 030ó091, 2
TRos, oo 0306091, 2
TRoz, oa 030595.l , 2
TRos, lo 030595'l , 2
TRlr, rz 0305951, 2
TR lg, rr 0305951 , 2
TR.ts, ro 0305951, 2
Dor, oz 031 0403
Do3, 04 031 0403
Sr I I 102ó0
VRot, oz I 032480
VRog, oa I 03251 0
VRos, oo I 03251 0
VRoz, oa I 03251 0
VRoq, ro ,l032510
Lor, oz 4290170
Lo3, oa 4290240
Los, oo 4900170
Loz, 08 4900 I 80
Cor, 02 051 2l 00
Co3, o+ 051 2l 00
Cos, oó 05.l 2l 00
Coz, oa 06ó01 0l
Cop, ro 05l0l0l
Crr, rz 0601227
Cr3, l+ 0512100
Crs, ro A60ll57'
Crz, rB 0ó01 39ó
Ctg, zo 051 2l 00
Czt, z2 051 2330
Czz, zt 060039ó
Czs, z6 0ó0030ó
Czt, zB 0600226
Czs,3o 05.l2330
C3l, 3z 051 2l 00
Crs, g+ 0601 1 0ó
C3s, só 0601827
Coz, s8 051 2l 00
Csp, ao 051 2l 00
Cqt, tz 051 2l 00
Ct3, u 0601277
Cts, q6 0óó0101
Cq, qa 0ó60.l 0l
Caq, so 05.I 2l 00
Csr, sz 0660221
Css, s+ 051 2330
Css, so 051 2l 00
Csz, s8 0515109
Csp, óo 051 2l 00
Rol, o2 0107102
Ros, or 01071A2
Ros, o6 0107 471
Roz, oB 0l 071 84
Rop, ro 0107103
Rrr, rz 0107104
Rrs, r+ 0107 473
Rls, 16 0107471
2SC I 31 2@ (c, H)
2SC I 3l 2@ (c, H)
2SC I 312@) (G, H)
25C945 (Q, P)
2SC945 (Q, P)
2SC945 (Q, P)
2SC94s (Q, P)
25C945 (O, p)
rN34A)
rN34A j Diode
1C.2C
IC.2C
IB.2B
18.28
Tronsistor -
_ I B,2B
14.24
2A
IB.2B
14.2A
1C.2C
1C.2C
14.24
14.24
1B.28
18.28
IB.2B
14.2A
14.2A
1C.2C
1C.2C
1C.2C
1C.2C
Ï B.2B
1B .2C
1C.2C
IB.2B
IB.2B
IB.2B
IB.2B
IB.2B
IB.2B
18.28
I B.2B
1 A.2B
IA.2A
14.2A
14.2A
14.24
14.2A
14.24
14.24
14.2A
14.24
14.2A
1B.28
14.2A
I A.2A
1C.2C
1C.2C
1C.2C
IC.2C
IC.2C
tc.2c
1C.2C
1C.2C
Rtz, l8
Rtg,20
Rzt, zz
Rz3, zq
Rzs, z6
Rzl, zB
Rz9, 30
Rst, 3z
Rgg, a+
R3s, 36
Rsz, gg
Rgp, ao
Rlt, 4z
Rn, u
R+5, aó
Rq, q8
Rap, so
Rst, sz
Rs3, 54
R5s, so
R5z, sB
R59, óo
Rór, o2
Ró3, ó+
Ros, óo
Roz, óB
Róp, zo
Rtt, t2
Rt3, zl
Rts,76
Rt7, tB
Rzg, 80
RBt, 82
R8g, 8+
R8s, 8o
R8z, 88
R8g, po
Rgt, gz
Rp3, p+
Rps, 9ó
Rgz, p8
0107102
0107 472
0r075ót
0107 123
01 07 224
0107103
0107 47 4
0r07103
0107102
0r07t04
0r07391
0107823
0107 104
0107102
0107 472
0r07331
01 07 222
0107562
0107 472
0107 472
0 r 07393
0107273
0 1 07ó83
0107224
0r07r04
01 07 822
0107821
01 07 222
0 r 07333
0 r 075ó3
0107153
0107100
0r07561
0r07r0r
0107102
01 07 823
0t 07 s62
0107102
0 r 075ó0
0r07r0r
0107 472
lko
4.7ko.
5ó0 C}
I 2kc)
220ko"
I 0ko
47 }ka
10ko
lko
I 00kc)
3e0c)
82ko
I 00k c)
lko
4.7kdl
330 C)
2.2k{l
5.óko
4.7ko
4.7kC"
3eko
27kd)
ó8ko
220k dl
I 00ko
8.2ko
820 C}
22kdt
33k c)
5óko
15ko
10C}
5ó0 c)
I 00C}
lko
82k c)
5.óko
tko
5óo
I 00C)
4.7kdl
IC.2C
1C.2C
I C.2C
1C.2C
1C.2C
1C.2C
IC.2B
I B.2B
IB.2B
IB.2B
I B.2B
1B ,28
I B.2B
18.2B
18.28
IB.2B
IB.2B
IB.2B
IB.2B
14.2A
tA.2A
14.24
I A.2A
14.24
I A.2A
14.24
14.24
14.2A
14,2A
14.2A
14.2A
14.24
14.24
14.24
14.24
IB.2B
I B.2B
14.2A
IB.2B
IB.2B
Y
Y
v
l oko(B) )
50ko(B) I
50ko(B) !
soko(B) I
50kotslJ
36mH I
23rH I
4.7mH/ lnductor Coil
s3mH J
CLI I l28 Slide Switch
Vorioble Resistor
I óV E.C.
sOV C.C.
6.3V E.C.
5OV M.C.
IóV E.C.
sOV M.C.
IóV E.C.
sOV M.C.
,I óV E.C.
sOV M.C.
I óV E.C.
5OV M.C.
5OV C.C.
I óV E.C.
sOV C.C.
I óV E.C.
50Y E.C.
I óV E.C.
lko
tko
470o.
l80ko
I 0ko
I 00ko
47ko.
470o.
lLw c.R.
1OpF )
ropr )
tottr)
1 00pF
100 ytF
0.00221tF
101tF
0.0l5pF'l
o.oo3e ltFJ
.l07-zF'l
$prl
0.003epzr I
0.0037-zF )
O.oo22yi )
337-zF )
toprl
0.001 7-zF)
o.o821tFJ
1opF )
loprl
topr)
0.027 1tF
I 00pF)
I oopF/
101tF
220pt
33p F)
toprl
1 rrF
1A pt
t
I
--f, b brev iatio ns--
C.R. : Carbon Resistor
S.R. : Solid Resistor
Ce.R. : Cement Resistor
M.R. : Metallized Film
Resistor
M.C. : Mylar Capacitor
E.C. : Electrolytic Capacitor
BP.E.C.: Bi-PolarElectrolytic
Capacitor
C. C. : Cera m ic Ca p ac itor
Mi.C. : MicaCapacitor
O.C. : Oil Capacitor
P.C. : Polystyrene Capacitor
T.C. : Tantalum Capacitor
tAw C.R.
l4

sc-636
5-2. GA-1190 Power Suppry and Auto Stop Circuit Board
COndUCtOr Side §tock No' 7690180 Complete Circuit Board G-1190)
2SA-640
2SC-945
2SC-1061 2SC-1509
ï,
3
=
A
?
AL
+
Parts No. Stock No. Descri ption Position Descri ption Position
Parts No. Stock No.
TRoot 0305771,2
TRooz 030595'l , 2
TRoos 0305951 , 2
TRoo+ 0300300, 1
TRoos 030ó 171 , 2
TRooo 0305951 , 2
TRooz 0305951 , 2
Deor 03.l 0340
Dooz 031 0340
Doos 03 10340
Doo+ 03.l 0340
Doos 031 0340
Dooo 031 0340
Doot 03.l 0340
ZDoot 03.l5380
ZDooz 03.l 51 70
SKeot 08001 90
OSCoot 0825020
VRot 1032520
VRoz 1032520
VRos 1032520
VRoa 1032520
RD I 9AM I zener Diode
RDTAL )
S 1 201 I 20C) + 0..l Spork Killer
BO- I OSC Brock
2SC I 0ó't (9, c)
2sc945 (Q, P)
2SC9 45 (Q, e;
2SAó40 (N, M)
2SC 1509 (Q, R)
25C945 (O, r;
25C945 (Q, P)
t0D-r
l0D-r
r0D-l
t0D-l
10D-r
10D-1
10D-l
0660221
0660221
051 2l0l
0549005
05r3l0l
051 3l 0l
05 I 0470
05r5109
05r3100
0ó4900 I
0107 473
0r0zr04
0107 473
0r07104
0107152
0107121
01 07 222
0l 07 222
0107 47 4
01 07 222
01 07 392
0107184
0r07104
0107102
0r07100
z2o nr] 5ov
220 pt )
10012F I óV
2200 prt 35V
r 007rF] 2sy
1001tF )
47 1.tF ó.3V
1 ttF 50V
10 pF 25Y
22001tF 300V
|,,".,,,,.,.
IA
1A
1A
IA
IB
IB
IA
1A
IA
2A
2A
1,28
IB
2A
IA
IB
2B
2B
2B
2B
2B
Cot
Coz
Coot
Cooz
Cooa
Coo+
Coos
Cooo
Coot
Cooa
Ror
Roz
Ros
Ro+
Roo.t
Rooz
Roog
Rooa
Roos
Rooo
Rooz
Rooa
Roop
Ror o
Rot t
C.C.
E.C.
E.C.
E.C.
E.C.
E.C.
E.C.
Mi.C.
IB
1,28
1B
2A
IA
2A
IA
IB
IB
1,28
2B
2B
2B
2B
IA
1A
IA
1B
IA
IB
IB
I A,
I A,
I A,
IB
Diode
100ko B )I
l00kog(^ .,,.,,
/ )eml voiloole
.l00kC) g I nesistor
I
I ookc) B )
47kdl
I 00kc)
47kdl,
1 00ko
t.5ko
I 20C)
2.2kdl
2.2ko,
47\ko
2.2kdl
3.9ko
I 80ko
I 00ko
tko
I 0c)
:4w C. R.
B
B
B
Parts List
t5

5-3. G-1167 Dolby Circuit Board
Conductor Side
(Stock No. 7660030 Complete Circuit Board G-1167)
ffi
k
r&l
à
m
àJ
w
@a,&
'ffi
.# uas@
jffi rft#e
#t +È'
ffi'É
ww
í W.#ffi#,
.-, É
g,W
;
W-+
@
2SC71 1
2SC1 31 2
Parts List
Parts No. Stock No. Descri ptio nPos iti o n
TRor
T Roz
T Roo
T Roa
T Ros
TRoo
T Roz
T Roa
T Rop
TRro
030ó09.|,2
0306091 ,2
0306091 ,2
030ó091 , 2
0305731 ,2
0305731 ,2
0300300, I
0300300, 1
0345731 ,2
0305731 ,2
2SCl312@(G,H)
2SC1s12@(C,n)
2SCl3l2@(G,H)
2SCl3l2@(c,H)
2SC7t 1 (E. F)
2SC7l I (r, r)
25A640 (M, N)
2SAó40 (M, N)
2SCZI I (r, r)
2SC7l I (r, r)
IN34A
IN34A
DS-430
DS-430
DS-430
DS-430
IN34A
IN34A
DS-430
DS-430
RD.7A
Tron sisto r
IA
1B
IA
IB
1A
IB
IA
IB
2A
2B
2A
2B
IA
IB
1,24
1,24
1,28
2A
2B
2A
2B
1,24
1A
1B
IA
IB
IA
IB
IA
2A
2B
cDrain
o Gate
oSource
SIJ
RD.7A
FETor o37oto4
FEToz 03201 04
Dor 031 0403
Doz 03,I 0403
Doe 0340090
Do+ 0340090
Dos 0340090
Doo 0340090
Doz 031 0403
Doa 03,I 0403
Dop 0340090
D ro 0340090
ZDsor 031 5l 70
Cor
Coz
Cos
Co+
Cos
Coo
Cot
Coa
Cog
Cro
05r2r00
05r2r00
0512r00
05r2r00
0ó005ó6
0ó005óó
0600277
0600277
060047 6
060047 6
Diode
Zener Diode
I óV E.C.
Ctr 0512100
Ctz 05]2100
Crs 0ó01 I 08
Ct+ 0ó0] I08
Crs 0510470
C ro 051 0470
Cv 051 21 00
Cre 0512100
Crp 060] I 08
Czo 0601 I 08
Czt 06001 08
Czz 06001 08
Czt 051 21 00
Czq 0512100
Czs 0ó01 I 08
Czo 0ó01 I 08
IóV E.C. IA
IB
x.to% sov M.c. 2 A
2B
ó.3V E.C. I A
1B
IóV E.C. IA
IB
2A
+ 1o% sov M.c. 2 B
2A
2B
I6V E.C. 2 A
2B
+ Lo% sov M.c. 2 A
2B
2SK3OA (D) )
2sK3oA iri I FET
I
ï
+
+
T
?
l0prF'l
toprl
0. t pFI
0.1 pr I
fi pr\
a7 pFJ
l0pF)
toprl
o.trn)
0.1 pF I
o.t pr (
o.t pr )
I opF)
t o ltrJ
0. t pr)
0,1 1tt )
Parts No. Stock No. Description Pos it ion
10pF )
lopr I
to 1tr (
topr)
0.0056pF )
0.005ópr I
0.027 pr I
0.027 1tr (
0.00 +t 1tr I
o.ooa7 pF )
to be conllnued
ts% 50v M.c.
r6

sc-636
G-1 167 Parts List
Parts No. Stock No. Description Position Parts No. Stock No. Description Pos itio n3
v
?
3
Czt
Cza
Coot
Rot
Roz
Ros
Ro+
Ros
Roa
Roz
Roa
Ros
Rro
Rr r
Rrz
Rrs
Rr+
Rrs
Rro
Rrz
Rra
Rtp
Rzo
Rzt
Rzz
Rzs
Rz+
Rzs
Rzo
Rzt
Rza
Rzp
Rso
Rst
Rsz
Rse
Ro+
Rss
Rso
Rsz
Rse
Rsp
Rao
R+t
R+z
R+s
R+a
R+s
R+a
Raz
R+a
R+p
Rso
Rsr
Rsz
Rsa
Rs+
Rss
Rsa
Rsz
Rsa
Rsp
0ó0r r 08
060r r 08
05r2r01
0r0ó154
0r06r54
0r0ór84
0r06184
01 06273
01 0627 3
01 06822
0t 06822
01 06223
0t 06223
0106154
0t0ó154
01 4627 2
01 0627 2
0 r 06333
0 r 0ó333
0 .l 0ó332
0 r 0ó332
0 r 0ó393
0 r 0ó393
01 06562
0t 06562
0r 0ór 52
010ór52
0r0ór23
0r 0ór 23
0 r 06ó84
0 r 0óó84
01 06682
01 06682
0r0ó153
0r0ó153
01 06822
01 06822
0r06r03
0r0ór03
01 06822
0t 06822
0 r 0ó333
0 r 0ó333
0t 06822
01 06822
01 061 24
0t 061 24
01 0647 3
01 0647 3
01 0627 2
01 0627 2
01 0647 0
0t 0647 0
0r 06r 02
0r0ór02
0 1 0ó330
0 r 06330
0r06r53
0r0ór53
01 0627 4
010627 4
01 07 224
3:lÍl) +to% sov M C.
100 1tF 1 óV E.C.
I 50ko
I 50ko
I 80ko
r 80ko
27 kd\
27k{l
8.2ko
8.2ko
22ka
22ka
r 50ko
I 50kc)
2.7kC"
2.7 kd)
33k c)
33k c)
3.3ko
3.3ko
3eko
39ko
5.6ko
5.ók cI
1 .5k c)
I .5k c)
I 2ko
1 2kc)
ó80k o
ó80k c)
ó.8k c)
ó.8ko
I 5ko
I 5ko
8.2k c)
8.2ko
I 0ko
1 0ko
8.2ko
8.2k c)
33k c)
33kr}
8.2ko
8.2ko
I 20ko
I 20kr)
47kd\
47kdl
2.7ko"
2.7 kd],
47 {t
47o"
lko
I kc)
33í}
33C}
I 5ko
1 5ko
27lko
27 }k{l
220ko
2A
2B
l,2A
IA
1B
IA
IB
IA
IB
IA
IB
1,24
2B
IA
IB
IA
IB
1A
IB
IA
IB
2A
2B
IA
IA
IA
IB
2A
2B
2A
2B
2A
2B
IA
IB
IA
IB
IA
IB
1A
IB
1,24
1,28
2A
2B
2A
2B
2A
2B
2A
2B
2A
2B
2A
2B
2A
2B
2A
2B
2A
2B
2A
Roo
Ror
Roz
Roor
Rooz
VRor
V Roz
V Ros
V Ro+
TPot
TPoz
01 07 224
01 0627 4
0t 0627 4
01 07 102
0r0333r
1031090,2
1031090,2
r 031 040
r031040
22okg +s% tÀW C.R. 28
270kA1 +s% lAw C.R. 2A
27 okttl (r.t.n.) 2 A
tkO +S% lAW C.R. 1,2A
330.o +10% l,/zV,,t C.R. 2A, B
Semi-Vorioble Resistor
A
B
A
B
5ko (s) t
5ko (B) l'
sooo (B) l,
sooo (B) ,|
2260010 A4-0r 775-1 ) Tesr Pin
2260010 A4-0 177 5-1 )
2A
2B
_--Ab b rev iatio ns--
C.R. : Carbon Resistor
S.R. : Solid Resistor
Ce.R. : Cement Resistor
M.R. : Metallized Film
Resistor
M.C. : Mylar Capacitor
E.C. : Electrolytic CaPacitor
BP.E.C.: Bi-Polar Electrolytic
Capacitor
C.C. : Ceram ic Capacitor
Ma.C. : MicaCapacitor
O.C. : Oil Capacitor
P.C. : Polystyrene Capacitor
T.C. : Tantalum Capacitor
5-4. G-1160 Switch Circuit Board
(stock No. 7690140 complete circuit Board G-1160)
Parts List
Parts No. Stock No. Description
t 'l 30740 SUB 32059 Push Switch
Sz
+ 5% I iw c.R.
(E.1. R.)
5-5. G-1180 CdS
(Stock No. 7690130
Parts List
Circuit Board
Complete Circuit Board G-1180)
Parts No. Stock No. Description
Cd S to og2ooso MKY-5C38 CdS
5-6. G-1185-1 Fuse Circuit Board
Parts List
Parts No. Stock No. Description
Fot
Foz
Fos
Fo+
0430810 0.5A Power Fuse (220^'.l40V)
0430830 lA Power Fuse(t00^-'ll7V)
0430830 1 A I
0430890 4A l Fuse
0430800 0.3A J
231 0I 50 Fuse Holder
l7
t5% lAw c.R.

5-7. GA-1189 Level Circuit Board
Conductor Side
(Stock No. 7690"170 Complete Circuit Board G-II59)
ffi.*rurffiffi ffi
Parts List
Parts No. Stock No. Description Parts No. Stock No. Descri ption
TRoor 0306091,2
TRooz 0305951, 2
VRor .l000320
VRoz 1000320
VReor I 00031 0
Coor 051 2l 00
Ceoz 051 2330
Coos 0660470
Coo+ 051 2330
Coos 051 2l 00
50ko B
50kO B
roko B
lopFl
§1nJ
47 pF
33pzF)
1o 1+J
I óV E.C.
sOV C.C.
I óV E.C.
2SCl3l2 (R,G,H))
2sc94s (o, n; I I ronsrsÏor Rog 0107 47 3
Ro+ 0107 473
Ros 0 I 07393
Roo 0 I 07393
Roz 0107104
Roa 0107104
Roor 0107123
Rooz 01 0Z I 04
Reos 0107 182
Roo+ 0107 104
Reos 0107104
Rooo 0107 472
Rooz 01025ól
Rooa 0107222
Roos 0107 102
IvorioUre Resistor
I
47kdl
47kdl,
3ek c)
3eko
I 00ko
r 00ko
I 2kc)
I 00kc)
t.8ko
I 00ko
r 00ko
4.7ko-
5ó0 c)
2.2ko-
lko
r,iw c.R.
Ror
Roz 0107 102
0107102 ilfi) l+w c R
lllllilllilllillllll5-8. other Parts List lllllllllilllllllllllililllllilllllllllllllllllilllllllllllllllllillllllillllllllllllllll
Parts No. Stock No. Description
CMFzor 0ó9001 11tF 230V M.C.
C. R.
Rzor
Rzoz
Rzos
Rzo+
0r07r03
0107r03
0107 104
0r07r04
t0ko I
rokc) I
t00ko i1+w
rookC) ,|
r8

sc-636
6. DISASSEMBLY WITH EXPLODED VIEWS AND
PARTS LISTS
6-1. Disassembly of the Cabinet and Electrical Sections, Parts List
r-- -r
FumË
@mn,
r:_)
[ _,]
À
1t
I
il
I
Y
Y
v
Y
Parts No. Stock No. Descri ption Parts No. Stock No. Description
ï s3lot7t
2 5310171
3 5310r7r
4,5 5l0ll2ó
6 51 0r 943
7 5101046
8 55r 0090
9 50501 9l
l0-.l5 510r943
I ó 70100e0
A, B 5740210
c s060220
17,18 4300370
I 9 55r0r00
20 5109122
21 5241070
22, 23 5ó0ó050
24 047 0360
25 0470370
26,27 0420040
28,29 5109122
30,31 23t0031
32 5040430
3 3 s040420
34
35
3 ó 5040440
37 5101843
38 5241080
3 9 2430190
40 243017 0
41 243017 0
42 2430170
43 53204 r 0
44 53204 I 0
45
46 5r0r843
47 7 6901 40
48 5r0r843
49 4001 370
50,51 3810080,1
52 5109122
5 3 77 10060
54,55 5616t t0
5ó 5t 01 843
57 7óó0030
58 5t 10780
59 51 02083
ó o 7 6eo17o
ó I 5t01843
62 7 620080
ó3 5r0er2r
64,65 5250090
66 5109122
67 52ó0130
ó 8 5109122
69 50301 40
70 5r0t844
008 Type Knob (Center Mic)
008 Type Knob (nisht Mic)
008 Type Knob (tett Mic)
B Type Screw M2.6X12
BSB Type Screw M3 x ó
B Type Screw M3 X l2
Foot
Bottom plote
BSB Type Screw M3 X 6
Top Cover Ass'y
Side plote
Cossette Lid
VU Meter
Meter Cushion
BT Type Screw M3 X 8
Holder, VU meter
Grommet
Lomp (ZV t 00mA) Record indicotion
Lomp (ZV t 00mA) Dolby indicotion
Merer lomp (0.V gOOmn)
BT Type Screw M3 X 8
lP lomp holder
Shield poking E
Shield pocking D
Hex Nut Ml2
P Type Wosher l2l
Jock mosk
BSB Type Screw M3 X ó
Jock plote
Heodphone iock
Mic iock (Center)
Mic iock (nisht)
Mic iock (tett)
Knob, dolby N.R.
Knob, tope selector
Button mosk
BSB Type Screw M3 X ó
Switch circuit boord
BSA Type Screw M3 X 6
Power tomsformer
Pinplug cord
BT Type Screw M3 X 8
ferminol boord Ass'y
Snop bushing
BSB Type Screw M3 X 6
Dolby circuit boord G-1127
Hex Nut M8
P Type wosher, 8/
Volume circuit boord G-1189
BSB Type Screw M3 X 6
R/P Circuit boord GA-l l9l
BT ïype Screw M3 X ó
Stond E, P.C.B.
BT Type Screw M3 X I
Holder, voltoge selector
BT Type Screw M3 X 8
Shield plote
BSA Type Screw M3 X I
71
72
73
74
75
76
77
78
79
80
8t
82
83
84
24 1 0080
241 0090
5109122
5250r l0
5ó06050
047 0360
5r0t843
26901 50
51 051 22
51 22540
21 1 0021
5r01843
7 6901 80
2110141
Voltoge selector socket
Voltoge selector plug
BT Type Screw M3 X 8
Lomp stond
Grommet
Auto stop lomp (lV, l00mA)
BSB screw M3 X ó
Fuse circuit boord G-l 185-l
BT Type Screw M3 X 8
TLE Type wosher, 3/
Lug terminol 2L2A
BSB Type screw 3 X 6
?ower circuit boord G-l 196
Lug terminol I Ll
Hardware Nomenclature
Name Abbreviation TYPe
Head Tapping Screw . . BT @ W
Head Tapping Screw . .WT @ (---r
PanHeadScrew ....P @ 0- --r
Binding Head SEMS A Screw . . BSA @ W -- '-',
Binding. Head SEMS B Screw.. . . . .BSB @ Cffi-r
Binding Head SEMS F Screw . . BSF @ ffi-:
Binding Head Screw ............8 @ ffi.---:
i
l
i
I
I
l
I
I
Binding
Washer
Flat Countersunk Head Screw. . . . .. . .F
Flat Countersunk Wood Screw. . . . . . FC
Round Head Wood Screw .......,..RH
Hex. Socket Set Screw ........SC
SlotType Set Screw ...,.o....SS
Spring Washer .......................S @
Plain Washer..... .... o.........,P O
Retaining Ring (E Washer) ..........E @
Toothed Lock Washer (External) . . TLE §
@
@
@
r9
Y/