HCD-M70 - Sony Audio Service Manual (repair manual). Page 29

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HCD-M70
28
28
6-14. PRINTED  WIRING  BOARD  – SWITCH Board –
 See page 17 for Circuit Boards Location.
D804
C-6
D805
B-6
D807
C-2
D808
B-2
D809
E-2
D810
E-4
D811
D-6
D812
E-6
D813
C-6
D814
B-7
IC802
D-2
Q805
D-4
Q806
D-5
Q807
D-6
Q808
D-4
Q809
D-6
Q810
D-6
Q811
D-6
• Semiconductor
Location
Ref. No.
Location
IC802
H
SWITCH BOARD
CONTROL BOARD
CN802
G
CONTROL BOARD
CN803
F
CONTROL
BOARD
CN801
LIQUID CRYSTAL DISPLAY
(STANDBY)
D804, 805
(LCD BACK LIGHT)
D807, 808
(LCD BACK LIGHT)
1-684-229-
11
(11)
20
10
1
1
3
TUNING +
TUNING –
CD
REC
CD
CD
CD
TAPE
TAPE
VOLUME +
VOLUME –
TUNER
TUNER
FM
TUNER
AM
TAPE
DSG
D811,S808
FUNCTION
CD SYNCHRO
36
1
A
B
C
D
E
F
1
2
3
4
5
6
7
(Page 26)
(Page 26)
(Page 26)
HCD-M70
29
29
D809
D810
R502
R501
D811
R503
R504
R505
D812
D813
Q805
Q806
Q807
Q808
Q809
Q810
Q811
R507
R508
S807
S804
S801
JR512
R514
R513
S817
S812
S820
S808
S805
S802
R521
R520
R519
R518
R517
R516
S815
S813
S811
S809
S806
S803
R528
R527
R526
R525
R524
R523
JR508
R522
R532
R533
D804
D805
D808
D807
IC802
JR505
C822
JR507
R506
CN501
R512
JR521
S818
C821
D814
JR523
SLR-343-YC
SLR-343-YC
560
560
SLR-343-YC
2.2k
560
560
SLR-343-YC
SLR325VR-T31
SRC1202S
SRC1202S
SRC1202S
SRC1202S
SRC1202SS
SRC1202S
SRC1202S
4.7k
560
0
2.2k
2.2k
22k
10k
4.7k
2.2k
2.2k
1k
47k
22k
10k
4.7k
2.2k
2.2k
0
1k
220
220
SELS6B14C-LF62
SELS6B14C-LF62
SELS6B14C-LF62
SELS6B14C-LF62
NJL62H400A-1
0
4.7
16V
0
1k
15P
1k
0
0.01
SLR325VR-T31
0
AA1
AA2
AA3
AA4
AA1
AA2
AA3
AA4
KEY1
KEY2
KEY3
SIRCS
D-GND
+8V
KEY
STBY-LED
TC-LED
CD-LED
TU-LED
DSG LED
CD-SYNCLED
BACKUP 5V
(CHASSIS)
(2/2)
D804,805,807,808
(LCD BACK LIGHT)
CD
CD
CD
REC
TAPE
TUNER
AM
DSG
TUNER
FM
TAPE
VOLUME +
VOLUME -
FUNCTION
I
O
G
REMOTE CONTROL RECEIVER
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
CD
TUNER
DSG
TAPE
CD SYNCHRO
(STANDBY)
TUNING +
TUNING -
6-15. SCHEMATIC  DIAGRAM  – SWITCH Board (2/2) –
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(Page 27)
HCD-M70
30
30
6-16. PRINTED  WIRING  BOARD  – POWER Board –
 See page 17 for Circuit Boards Location.
D902
D-5
D903
D-5
D904
C-5
D905
C-5
D906
C-6
D907
C-5
D908
D-6
D909
D-5
D910
C-3
D911
B-3
D912
C-3
D913
B-3
D915
B-5
D917
B-6
D918
C-4
Q901
B-6
Q902
C-4
Q903
B-5
• Semiconductor
Location
Ref. No.
Location
MAIN POWER
TRANSFORMER
SUB POWER
TRANSFORMER
(SP)
(EXCEPT SP)
(EXCEPT SP)
(SP)
MAIN BOARD
CNP101
D
1
2
1
8
(US, CND)
(EXCEPT SP)
(SP)
POWER BOARD
LINE
FILTER
EXCEPT
US, CND
EXCEPT
US, CND
(AC IN)
1
2
(CHASSIS)
(US, CND)
(US, CND)
G901
1-684-234-
11
(11)
–1 –2
VOLTAGE
SELECTOR
S901
110V – 120V
220V – 240V
A
B
C
D
E
F
G
H
1
2
3
4
5
6
(Page
24)
HCD-M70
31
31
Q901
Q903
D917
C911
D915
C920
R902
C917
R904
R905
C918
C910
D904
D902
D908
D907
D909
F904
F901
C925
R910
JW904
JW905
JW907
CN901
CN101
D905
D903
D906
D910
D911
D913
D912
Q902
T902
T901
RY901
JW906
JW903
JW908
JW911
LF901
R909
G901
D918
S901
F902
F903
JW902
JW901
STC352-OY
STC352-OY
1SS133T-77
47
16V
MTZJ-T-77-6.8C
220
25V
4.7k
220
16V
4.7k
47k
10
50V
0.022
1N5401
1N5401
2A02M
2A02M
2A02M
0.01
250V
220
2P
8P
1N5401
1N5401
2A02M
1SS133T-77
1SS133T-77
1SS133T-77
1SS133T-77
2SC2785
3.3M
1/2W
MTZJ-T-77
-6.2B
0.8A
250V
0.4A
250V
BACKUP5V
RELAY-ON
COM8V
+14V(S2)
S1-GND
(CHASSIS)
COM
230
115V
230V
COM
COM
120
(SP)
115V
230V
230V
120V
COM
S2-GND
+16V(S1)
-16V(S1)
Q901,903
+5V REGULATOR
POWER ON/OFF
RELAY DRIVE
MAIN POWER
TRANSFORMER
NOT REPLACEABLE:
BUILT IN TRANSFORMER
SUB POWER
TRANSFORMER
(US,CND,MX)
AEP,UK,
KR,TH,AUS
(SP)
(US,CND,MX)
AEP,UK,
KR,TH,AUS
F904
2A 125V (US,CND,MX)
(AEP,UK,SP,KR,TH,AUS)
(SP)
(EXCEPT SP)
(SP)
(SP)
(EXCEPT SP)
(US,CND,MX)
F901
0.8A 125V
T0.4A 250V
(AEP,UK,KR,TH,AUS)
(EXCEPT US,CND)
FILTER
LINE
(US,CND)
(EXCEPT US,CND)
(US,CND)
110V-120V
220V-240V
VOLTAGE
SELECTOR
(SP)
(EXCEPT SP)
(SP)
(EXCEPT SP)
(SP)
(AC IN)
-1
-2
T2A 250V
6-17. SCHEMATIC  DIAGRAM  – POWER Board –
The components identified by mark 
0
 or dotted
line with mark 
0
 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque 
0
 sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
(Page 23)

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