Sony HCD-M80, Service Manual

Page: 31 / 94

HCD-M80
31 31
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(
) : CD PLAY
6-16. SCHEMATIC DIAGRAM – MAIN (2/2)/JACK Boards – •
See page 40 for IC Block Diagrams.
C242
L201
C244 C245
C144 C145 R144
R244
R143
R243
C243
R323
C142
R241
R141
C143
C350
C351
Q408 Q409 Q406 Q407
C322 C318
C319 C321
C327 C320
C331
R161
R261
R364
Q312
Q100
Q200
C312
R307
R108
R208
R313
C313
JR303
R309
C315
SJ301
IC201
C141
C241
CN303
Q309 Q355
IC304
R308
CNP101
C310
IC525
D521
D520
C553
C556
C558
C554
J502
J501
RV500
CNP502
C506 C505
R591 JR532
JR531
JR530
R587
R590
R593
R551 R552
R558
R559 R571
R570
JR501
L503
L501
L502
S587
S593
S590
S594
R554
L101
IC305
Q313
IC101
R330
Q311
Q310
R383
CN304
JW312 JW379
R340
D315
D316
C369
C317 D311
JR305
JR306
D313
R305
R302
R240
R140
R142
R242
C309
C308
C306
D317
R341
D310
C561
LGP1
R556
C552
R553
C559
C555
C557
C307
C303
TH1
TH2
470p
0.1 0.1
0.1 0.1 4.7
4.7
100k
100k
22
50V
10k
470p
22k
22k
22
50V
4.7
50V
4.7
50V
DTC343TK DTC343TK DTC343TK DTC343TK
470
16V 10
50V
0.1 0.1
470
16V 220
10V
0.1
47
47
47
SRA2202S
DTC343TK
DTC343TK
220
10V
10k
47k
68k
47k
100
10V
0
1k
100
10V
4P
TDA7296
47
50V
47
50V
17P
STC352-OY KTC2026
KIA7808API
100k
11P
3300
25V
BA4558F-E2
1SS355TE-17
1SS355TE-17
1000p
1 50V
0.22
50V
1
50V
20k
8P
0.022 0.022
1k 0
0
0
330
470
680
1k 2.2k
1k
1k 10k
10k
0
100k
KIA7812API
SRC1202S
TDA7296
1k
KTC3198GR
-A
KTC3198GR
-A
220
8P
100
1SS133
1SS133
2200p
0.1 MTZJ-T-77-12B
0
0
1SS133
100
100k
680
680
33k
33k
3300
35V
3300
35V
47
50V
1SS355TE-17
470
MTZJ-T-77
-3.9A
2.2
4.7k
100p
100
10
16V
100p
100
10V
100
16V
1000
16V
A1
A2
A5
A6
A7
A10
A13
A16
A17
A18
A19
A3
A11
B/UP
KEY
STK_MUTE
AU_MUTE
H/P_DETECT
STBY_RELAY
STK_POWER
DC DET
AC DET
D/D CONTROL
GND
S
B
G
N
D
IN
-
IN
+
IN
+
M
U
T
C
D
B
O
O
T
+
V
S
-V
S
S
T
B
Y
M
U
T
E
+
P
W
V
S
O
U
T
-P
W
V
S
SBGND
IN-
IN+
IN+MUT
CD
BOOT
+VS
-VS
STBY
MUTE
+PWVS
OUT
-PWVS
AU MUTE
+8V
END SW
PLAY SW
REC/PB
ALC CON
H/P DETECT
(2/2)
+
+
-
-
R
L
SPEAKER
IMPEDANCE
USE 6-16 Ω
MUTING MUTING MUTING MUTING
CONTROL
SWITCH
Q312,313
MUTING
MUTING
MUTING
DC DETECT
Q310,311
POWER AMP
POWER AMP
N
C
N
C
N
C
N
C
D-GND
P-GND
VOL-CE
+12V REGULATOR
+8V REGULATOR
O
G
I
-22.5V
R1-GND
+22.5V
R2-GND
+14.2V
COM 8V
RELAY ON
AC DET
DVD POWER CONT
FAN CONTROL
BACKUP4V
+3.3V REGULATOR
KEY3
H/P LCH
H/P RCH
H/P DET
VCC
VSS
MIC AMP
PHONES
MIC LEVEL
MIC
TUNING MODE
PLAY MODE
REPEAT
FM MODE
CD SYNCHRO
DIRECTION
GND
GND
+12V
KEY3
GND
MIC
+12V
H/P LCH
H/P RCH
H/P DET
O
G
I
+12V REGULATOR
TC SW
LINE MUTE
REC MUTE
CD ON
MOT CON
SOL CON
KEY0
MIC
(CHASSIS)
(CHASSIS)
(CHASSIS)
4.7 µ H
4.7
µ
H
0.47
µ
H
ALC_CON
TC_SW
END_SW
PLAY_SW
M_CON
S_CON
CD_ON
SCE
REC/PB
REC_MUTE
LINE_MUTE
KEY
AU_MUTE
H/P_DETECT
(Page 30)
(Page 37)
(Page 33)