Sony HCD-M80 Service Manual ▷ View online
HCD-M80
5
5
2-2.
SCHEMATIC DIAGRAM – TC Board –
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TAPE PLAY
(
no mark : TAPE PLAY
(
) : REC
C402
C403
R212
R428
R425
R426
R418
R422
R424
R423
R409
R410
R412
R411
R414
C401
R415
R416
JR102
C400
R413
R417
R103
R104
R105
R106
C107
C108
C106
C105
R101
C104
C207
R206
C208
C206
C205
R201
R203
R204
R205
C204
C101
C410
C201
R408
R407
Q405
Q404
R406
Q403
C435
R404
C422
R405
R403
R402
C434
JR201
R401
C433
C432
R109
R111
C110
C111
C211
C210
R211
R112
R208
R207
Q200
Q201
R108
R107
Q100
Q101
JR103
R213
JR104
C109
C209
JR106
JR105
RV101
RV201
R400
R113
R209
TH3
CNP1
T101
T201
T401
CN301
Q401
Q402
IC401
CN302
C407
C202
C102
R202
R102
C437
0.01
0.01
5.6k
4.7k
4.7k
4.7k
4.7k
10k
47k
22k
4.7k
10k
10k
47k
33
100
16V
16V
47k
1k
0
10
50V
1M
24k
10k
2.2k
47k
10k
1
50V
2.2
50V
50V
10
50V
1
50V
47k
0.01
1
50V
10k
2.2
50V
50V
10
50V
1
50V
47k
10k
2.2k
47k
0.01
470p
1
50V
470p
4.7k
47k
KRC107S
KRA102S
4.7k
KRC102S
0.01
10k
0.0068
10
47
10
47
10V
0
3.3k
0.0047
0.012
2.2k
10k
0.01
330p
330p
0.01
10k
5.6k
10k
10k
KTC3203Y
KTC3203Y
10k
10k
KTC3203Y
KTC3203Y
0
10
0
0.001
0.001
1K
1K
33k
33k
1
10
2.2k
8P
17P
KTC3203Y
KTA1266Y-AT
HA12237F
8P
10
50V
47
16V
47
16V
47k
47k
10
50V
REC-MUTE
PLAY-SW
PACK
REC-L
REC-R
MO +12V
MO GND
SOL 12V
END SW
END SW
ALC CONT
1
2
3
4
5
6
(CHASSIS)
L-CH
R-CH
ERASE
HRPE901
ERASE
RECORD/PLAYBACK/
TAPE DECK BLOCK
THE ASSEMBLED
BLOCK
SUPPLIED WITH
MUTING
Q100,101,200,201
REC/PB EQ AMP,
ALC
BIAS OSC
BIAS OSC
Q402,403
REC BIAS
SWITCH
SWITCH
Q404,405
MUTING CONTROL
REC IN-R
R-OUT
REC/PB
LINE MUTE
A-GND
REC IN-L
+8.0V
L-OUT
MO GND
TC-SW
PLAY-SW
MO +12V
SOL 12V
PB-
NF1(L)
PB-NF2(L)
PB-
EQ(L)
EQ-
OUT(L)
TAI(L
)
PB-
O
UT
(L)
MUTE
NC
REC-
IN(L)
ALC(L)
N
C
REC-OUT(L)
TEST
I-
REF
GND
VCC
ALC-
DET
REC
MUTE
MUTE
A/
B
NOR
HI/
ALC
REC-OUT(R)
NC
(R)
ALC
REC-
NC
PB-
OU
T(R)
IN(R
)
(R)
TAI
OUT(R)
EQ-
PB-
EQ
(R
)
PB-
PB-NF2(R)
NF1(R)
AIN
(R)
NC
BIN
(R)
GND
REC
BIN
(L)
RIP
AIN
(L)
EQ
ALC
EQ
MUTE
A
B
A
B
B+3.3V
B
(Page 8)
HCD-M80
6
6
2-3.
PRINTED WIRING BOARD – TC Board –
• Semiconductor
Location
Ref. No.
Location
IC401
C-4
Q100
D-2
Q101
D-3
Q200
D-4
Q201
D-4
Q401
D-2
Q402
D-2
Q403
B-3
Q404
C-3
Q405
C-3
IC401
1
10
11
20
30
21
31
40
TC BOARD
1-684-172-
(33)
E
C
B
E
C
B
E
C
B
E
C
B
1
2
7
8
TAPE DECK BLOCK
SUPPLIED WITH
THE ASSEMBLED
BLOCK
B
MAIN BOARD
CN301
HEAD
RELAY
BOARD
HRPE901
(RECORD/PLAYBACK/ERASE)
L-CH
R-CH
ERASE
(CHASSIS)
A
1
3
A
B
C
D
E
1
2
3
4
5
33
(Page 7)
HCD-M80
7
7
2-4.
PRINTED WIRING BOARDS – MAIN/JACK Boards –
D302
B-2
D305
C-9
D307
F-7
D309
C-8
D310
B-3
D311
G-7
D312
C-7
D313
E-4
D315
B-10
D316
B-10
D317
D-9
D520
F-6
D521
F-6
IC101
E-9
IC201
F-9
IC304
F-7
IC305
C-5
IC323
B-6
IC324
D-3
IC525
F-2
Q100
C-7
Q200
C-7
Q301
B-8
Q303
C-8
Q304
C-9
Q305
E-7
Q307
E-6
Q308
E-6
Q309
C-2
Q310
C-9
Q311
C-9
Q312
E-2
Q313
D-2
Q330
C-7
Q341
B-2
Q342
B-2
Q343
B-2
Q344
B-2
Q355
G-7
Q406
D-3
Q407
D-3
Q408
D-3
Q409
D-2
• Semiconductor
Location
Ref. No.
Location
IC323
IC201
IC101
IC304
IC324
R308
D317
25
24
G
CONTROL BOARD
CN605
B
TC BOARD
CN301
17
MAIN BOARD
17
16
TUNER UNIT
SUPPLIED WITH
THE ASSEMBLED BLOCK
TU1
L
R
AUDIO IN
MD (VIDEO)
L
R
+
–
–
+
SPEAKER
IMPEDANCE
USE 6 – 16Ω
E
CONTROL
BOARD
CN603
F
POWER
BOARD
CN902
SJ301
15 14
1
2
15
14
2
1
1-684-232-
16
(16)
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
11
8
1
C558
C556
JW531
C554
RV500
S594
S593
S590
S587
JW530
C559
JW533
JW532
C557
L502
D521
LGP2
LGP1
C552
R558
R590
R587
IC525
R552
R591
R570
R551
R559
C553
L503
C555
R554
R556
JR531
R571
C505
L501
C506
R593
JR532
R553
JR530
D520
C561
JR501
8
1
CNP502
C161
C162
C261
C262
R284
JR299
R184
R281
R181
1
3
IC305
C303
D313
Q308
Q307
R312
D312
R302
JR801
R314
C329
B
C
E
B
C
E
Q305
D307
C328
C348
JR305
C311
JR199
R317
(CHASSIS)
(CHASSIS)
(CHASSIS)
R318
R339
R204
C270
JACK BOARD
1-685-831-
PHONES
J501
MIC
J502
DIRECTION
CD SYNCHRO
REPEAT
FM MODE
PLAY MODE
TUNING MODE
MIC LEVEL
RV500
12, 13
(12), (13)
(Page 6)
(Page 10)
(Page 10)
(Page 14)
HCD-M80
8
8
2-5.
SCHEMATIC DIAGRAM – MAIN Board (1/2) –
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
no mark : TUNER (FM/AM)
(
) : CD PLAY
〈〈
〉〉
: TAPE PLAY
R121
JR307
JR308
R215
C215
JR312
R201
C209
C208
JR304
C108
C109
C302
C348
R202
R204
R102
R123
R122
C376
R130
R304
R350
C130
R131
R331
R120
R220
R222
R221
C230
R231
JR302
R230
C339
R311
C346
C347
R203
C211
C111
R103
R280
R180
Q343
Q344
JR301
Q330
C324
D305
C323
C360
R310
Q303
Q304
C160
R160
R260
IC324
C260
R218
L304
R320
CN301
R213
R113
R214
R114
C304
C326
C231
C250
C131
C150
C163
JR311
C106
C104
C103
C102
C214
C301
C263
C206
C210
C204
C203
C202
C201
Q301
SJ302
IC323
C110
R115
R118
C114
C101
Q342
Q341
CN302
C372
Q305
JR801
C329
D307
C328
C311
JW302
Q308
R312
Q307
JW339
R205
C270
R206
C262
JR299
R184
R181
C161
C261
R281
R284
C162
JR199
R101
R104
C170
R106
R105
D312
R314
C115
D302
R317
R318
C107
R107
C207
R207
D309
JR202
R339
2.2k
0
0
0
4.7
50V
50V
0
4.7k
0.22
0.1
0
0.1
0.22
1000p
100p
1k
2.2k
1k
10k
10k
100
16V
16V
4.7k
100
4.7k
100p
47k
10k
220k
220k
10k
2.2k
100p
47k
0
4.7k
220
16V
47
0.1
100p
10k
1
1
10k
2.2k
4.7k
SRC1202S
SRC1202S
0
SRC1202S
470
16V
MTZJ-T-77-10B
0.1
47
16V
100
SRA2202S
SRC1202S
10 10V
47
47
NJM3414A
10
10V
1k
330k
17P
4.7k
4.7k
47k
47k
100
16V
16V
10
10V
4.7
16V
16V
4.7
16V
16V
4.7
16V
16V
4.7
16V
16V
4.7
16V
16V
0
4.7
50V
4.7
50V
4.7
50V
4.7
50V
4.7
50V
10
50V
4.7
16V
16V
4.7
50V
4.7
50V
4.7
50V
4.7
50V
4.7
50V
4.7
50V
KTC3205
2P
LC75342
4.7
50V
0
1k
4.7
50V
50V
4.7
50V
50V
2SA950-Y-TPE2
2SA950-Y-TPE2
25P
0.1
KTC2026
0
470
16V
16V
MTZJ-T-77-10B
100
16V
16V
0.1
33µH
SRC1202S
1k
SRA2202S
3.3k
10000p
2.2k
47
50V
0
3.3k
10k
1
50V
1
50V
10k
3.3k
4.7
50V
50V
0
4.7k
2.2k
10000p
2.2k
3.3k
1SS133
82k
4.7
50V
50V
11ES2-TA1B
47k
47k
0.001
4.7k
0.001
4.7k
MTZJ-T-77
-6.8B
0
47k
A1
A2
A5
A6
A7
A10
A13
A16
A17
A18
A19
A11
A3
ALC_CON
TC_SW
END_SW
PLAY_SW
MD_L
MD_R
TCREC_L
TCOUT_L
TCOUT_R
REC_MUTE
REC/PB
LINE_MUTE
M_CON
S_CON
TU_R
TU_L
TU ON
TU ON
AA1
AA2
AA3
AA4
AA5
AA1
AA3
AA5
VOL-SCK
VOL-SCK
VOL-SDA
VOL-SDA
SCE
TCREC_L
MD_L
TCOUT_L
TU_L
TU_R
TCOUT_R
MD_R
REC
REC
DC DET
STK_MUTE
B/UP
STBY_RELAY
STK_POWER
AC DET
D/D CONTROL
AA4
AA2
CD ON
RDS-DATA
RDS-IN
TUNED
R-OUT
L-OUT
DC DET
CD8V
VOL-SDA
VOL-SCK
ST-DOUT
ST-CLK
ST-CE
ST-DIN
A-GND
A-GND
REC/PB
TC-SW
REC IN-R
R-OUT
REC IN-L
L-OUT
MO GND
END SW
(1/2)
HEADPHONE AMP
VCC
GND
POWER ON
MUTING
SWITCH
Q303,304
TUNER ON
+9.5V REGULATOR
Q342,344
TRIGGER
PLUNGER DRIVE
Q341,343
CAPSTAN/REEL
MOTOR DRIVE
TU-ON
PLAY-SW
MO +12V
+8.0V
LINE MUTE
REC-MUTE
ALC CONT
AUDIO IN
MD(VIDEO)
L
R
AM
ANTENNA
TU1
THE ASSEMBLED
BLOCK
SUPPLIED WITH
INPUT SELECT
ELECTRICAL
SWITCH,
TONE CONTROL
VOLUME,
SOL 12V
D.GND
P.GND
STK_MUTE
BACKUP4.0V
STBY_RELAY
AC DET
STK_POWER
FAN_CON
D/DCON CONTROL
B+3.3V
CD 10V
+9.5V REGULATOR
Q307,308
CD ON
SWITCH
FM75Ω
4.7µH
(Page 5)
(Page 11)
(Page 9)
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