Sony HCD-M70 Service Manual ▷ View online
HCD-M70
20
20
6-7.
PRINTED WIRING BOARD – TC Board –
•
See page 17 for Circuit Boards Location.
D401
B-4
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
• Semiconductor
Location
Ref. No.
Location
IC401
1
10
11
20
30
21
31
40
TC BOARD
1-684-172-
11
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)
(CHASSIS)
(CHASSIS)
A
1
3
A
B
C
D
E
1
2
3
4
5
(Page 24)
HCD-M70
21
21
C402
C403
R212
R428
R425
R426
R418
R422
R424
R423
R409
R410
R412
R411
R414
C401
C437
R415
R416
JR102
D401
C400
R413
R417
R102
R103
R104
R105
R106
C107
C108
C106
C105
R101
C104
C207
R206
C208
C206
C205
R201
R202
R203
R204
R205
C204
C101
C102
C410
C201
C202
C436
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
TH1
TH2
TH3
CNP1
T101
T201
T401
C407
CN301
Q401
Q402
IC401
CN302
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
22
50V
47k
1k
0
1SS355TE-17
10
50V
1M
24k
2.2k
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
2.2k
10k
2.2k
47k
0.01
470p
47
16V
1
50V
470p
47
16V
100
16V
16V
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
22
50V
17P
KTC3203Y
KTA1266Y-AT
HA12236F
8P
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)
(CHASSIS)
(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
B+5V
SOL 12V
PB-
NF1(L)
PB-NF2(L)
PB-
EQ(L)
EQ
-
OUT(L)
TA
I(L)
PB-
OUT(L)
MUTE
N
C
REC-
IN(L)
ALC(L)
NC
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-
OUT(R)
IN(R)
(R)
TA
I
O
UT(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
6-8.
SCHEMATIC DIAGRAM – TC Board –
•
See page 25 for Waveforms.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : TAPE PLAY
(
no mark : TAPE PLAY
(
) : REC
(Page 22)
HCD-M70
22
22
R121
JR307
JR308
R215
C215
JR312
R201
C207
C209
C208
R106
JR304
C107
C108
C109
C302
C348
R202
R206
C270
R204
R102
R104
C170
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
D309
C324
D305
C323
C360
R310
Q303
Q304
C160
R160
R260
IC324
C260
C372
R218
L304
R320
CN301
R213
R113
R214
R114
C304
C326
C231
C250
C131
C150
D314
C163
JR311
C106
C104
C103
C102
R207
C214
C301
C263
C206
C210
C204
C203
C202
C201
Q301
Q307
Q308
Q306
Q305
R312
R314
C330
D308
C366
C365
C329
D307
C311
C328
JR340
IC306
R317
R318
R371
Q302
R372
C380
R374
R376
R373
R375
C381
C385
C382
C384
C383
X301
D320
C387
C386
IC326
D302
SJ302
CN302
IC323
R205
R105
R101
C110
R107
C115
R115
R118
C114
JR101
C101
JR201
JR309
R377
C368
C333
C332
Q342
Q341
2.2k
0
0
0
4.7
50V
50V
0
4.7k
1000p
0.22
0.1
3.3k
0
1000p
0.1
0.22
1000p
100p
1k
3.3k
2.2k
1k
2.2k
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
MTZJ-T-77
-7.5C
470
16V
MTZJ-T-77-10B
0.1
47
16V
100
SRA2202S
SRC1202S
10 10V
47
47
NJM3414A
10
10V
100p
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
1SS133
4.7
16V
16V
0
4.7
50V
4.7
50V
4.7
50V
4.7
50V
4.7k
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
SRA2202S
SRC1202S
KTC2026
KTC2026
1k
100
0.1
MTZJ-T-77-5.1B
10
50V
220
10V
470
16V
MTZJ-T-77-10B
0.1
100
16V
0
KTA7808API
47k
47k
4.7k
2SC2412K
470k
0.1
100k
68k
1k
47k
330p
47
16V
0.01
51p
56p
4.332MHz
MTZJ-T-77
-4.3B
4.7
50V
560p
BU1924F
11ES2-
TA1B
2P
21P
LC75342
2.2k
2.2k
4.7k
4.7
50V
4.7k
4.7
50V
50V
0
1k
4.7
50V
50V
0
4.7
50V
50V
0
0
470
220
10V
10V
0.1
220
10V
10V
2SA950-Y-TPE2
2SA950-Y-TPE2
A1
A2
A5
A6
A7
A10
A11
A13
A16
A17
A18
A19
ALC_CON
TC_SW
END_SW
PLAY_SW
CD_ON
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
AA2
AA3
AA4
AA5
VOL-SCK
VOL-SCK
VOL-SDA
VOL-SDA
SCE
TCREC_L
MD_L
TCO
UT_L
TU_L
TU_R
TCOUT_R
M
D_R
REC
REC
BB1
BB2
BB3
BB1
BB2
BB3
DC DET
STK_MUTE
B/UP
STBY_RELAY
STK_POWER
∗
∗
RDS-DATA
RDS-IN
TUNED
R-OUT
L-OUT
DC DET
CD8V
CD 5V
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
QUAL
RDATA
VREF
MUX
VDD1
VSS1
VSS3
CMP
T2
T1
VSS2
VDD2
X1
XO
NC
RCLK
(1/2)
HEADPHONE AMP
VCC
GND
POWER ON
MUTING
SWITCH
Q303,304
TUNER ON
+9.5V REGULATOR
+9.5V REGULATOR
+5V REGULATOR
I
O
G
+8V REGULATOR
(AEP,UK)
DET AMP
RDS DECODER
(AEP,UK)
SWITCH
Q307,308
CD ON
Q342,344
TRIGGER
PLUNGER DRIVE
Q341,343
CAPSTAN/REEL
MOTOR DRIVE
TU-ON
GND
GND
AMP-MUTE
BACKUP5V
REG-CON
PLAY-SW
B+5V
MO +12V
+8.0V
LINE MUTE
REC-MUTE
ALC CONT
AUDIO IN
MD(VIDEO)
L
R
AM
ANTENNA
TU1
THE ASSEMBLED
BLOCK
SUPPLIED WITH
(AEP,UK)
(EXCEPT AEP,UK)
INPUT SELECT
ELECTRICAL
SWITCH,
TONE CONTROL
VOLUME,
∗
C170,270
0.022
0.01
SOL 12V
(EXCEPT SP,AUS)
(SP,AUS)
FM 75Ω
4.7µH
6-9.
SCHEMATIC DIAGRAM – MAIN Board (1/2) – •
See page 25 for Waveforms.
•
See page 32 for IC Block Diagrams.
• 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
(Page 21)
(Page 27)
(Page 23)
HCD-M70
23
23
C242
L101
L201
C335
C244
C245
C144
C145
R144
R244
R242
C306
TH1
TH2
C309
C308
C307
R143
R243
C243
JR310
R323
R330
C142
R240
R140
R241
R141
C143
R142
C369
C370
D316
D315
C350
C351
Q408
Q409
Q406
Q407
C322
C317
D311
C318
C319
R340
C321
C327
C320
C331
R341
C310
R383
R161
R261
R364
R305
Q312
Q313
Q100
Q200
C312
R307
R108
R208
R313
C313
JR303
R309
L201
L101
R591
S819
S816
S810
S814
R593
R590
R587
C315
C316
C371
C334
SJ301
TH1
TH2
CN304
CNP602
JR511
JR510
FB803
C801
L202
J301
IC201
IC101
C141
C241
CNP101
CN303
Q309
Q355
IC304
D310
Q311
Q310
JC306
D821
D820
470p
1000p
0.1
0.1
0.1
0.1
4.7
4.7
22k
10
50V
3300
35V
3300
35V
4.7
50V
50V
100k
100k
22
50V
0
10k
1k
470p
560
560
22k
22k
22
50V
22k
2200p
220p
1SS133
1SS133
4.7
50V
50V
4.7
50V
50V
DTC343TK
DTC343TK
DTC343TK
DTC343TK
470
16V
16V
0.1
MTZJ-T-77-12B
10
50V
0.1
100
0.1
470
16V
16V
220
10V
10V
0.1
100
3300
25V
4.7k
47
47
47
100
SRA2202S
SRC1202S
DTC343TK
DTC343TK
220
10V
10V
10k
47k
68k
47k
100
10V
10V
0
1k
1k
47k
22k
10k
100
10V
10V
10000p
1000p
1000p
4P
5P
5P
0
0
0.022
TDA7296
TDA7296
47
50V
47
50V
9P
17P
STC352-OY
KTC2026
KIA7808API
MTZJ-T-77
-5.6B
KTC3198GR-A
KTC3198GR-A
0
1SS1355TE-17
1SS1355TE-17
A1
A2
A5
A6
A7
A10
A11
A13
A16
A17
A18
A19
ALC_CON
TC_SW
END_SW
PLAY_SW
M_CON
S_CON
CD_ON
SCE
B/UP
KEY
STK_MUTE
AU_MUTE
H/P_DETECT
REC/PB
REC_MUTE
LINE_MUTE
STBY_RELAY
STK_POWER
DC DET
KEY
AU_MUTE
H/P_DETECT
H/P CHECK
L-OUT
R-OUT
GND
KEY
SBGND
IN-
IN+
IN+MUT
CD
BOOT
+VS
-VS
STBY
MUTE
+PWVS
OUT
-PWVS
SBGND
IN-
IN+
IN+MUT
CD
BOOT
+VS
-VS
STBY
MUTE
+PWVS
OUT
-PWVS
S1-GND
+14V(S2)
S2-GND
N.C
CD-ON
SOL-CON
MOT-CON
AU MUTE
+8V
END SW
PLAY SW
TC-SW
LINE.MUTE
REC/PB
REC.MUTE
ALC CON
H/P DETECT
KEY-0
-16V(S1)
+16V(S1)
(2/2)
GND
L-OUT
R-OUT
KEY
H/P CHECK
(CHASSIS)
(CHASSIS)
+
+
-
-
R
L
SPEAKER
IMPEDANCE
USE 6-16 Ω
(CHASSIS)
(CHASSIS)
MUTING
MUTING
MUTING
MUTING
CONTROL
SWITCH
Q312,313
MUTING
MUTING
MUTING
PLAY MODE
TUNING MODE
REPEAT
FM MODE
CD SYNCHRO
DIRECTION
(US,CND,MX)
KR,TH,AUS
AEP,UK,SP,
PHONES
DC DETECT
Q310,311
POWER AMP
POWER AMP
NC
NC
NC
NC
RELAY-ON
BACKUP5V
COM8V
D-GND
P-GND
VOL-CE
+12V REGULATOR
+8V REGULATOR
O
G
I
+5V REGULATOR
4.7µH
4.7µH
0.47µH
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
no mark : TUNER (FM/AM)
6-10. SCHEMATIC DIAGRAM – MAIN (2/2)/JACK Boards – •
See page 32 for IC Block Diagrams.
(Page 22)
(Page 31)
(Page 27)
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