Read Sony HCD-M80 Service Manual online
HCD-M80
13
13
2-10. SCHEMATIC DIAGRAM – SWITCH Board –
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM/AM)
no mark : TUNER (FM/AM)
JR505
R530
R537
R536
R535
R534
C575
C574
C503
C531
JR504
C533
L511
C532
R507
C500
Q508
Q507
D508
D507
D506
D509
R532
R533
R522
R513
R514
R523
R524
R525
R526
R527
R528
R521
R520
R519
R518
R517
R516
R501
D502
D501
R502
R503
D503
R504
D504
R505
D514
D505
Q501
Q502
Q503
Q504
Q505
Q506
R506
R531
C522
C521
IC502
D500
CN501
R538
LCD502
L512
S527
S528
S526
S524
S525
S523
S514
S513
S503
S530
S531
S521
S520
S519
S518
S517
JR521
0
10k
100
100
100
100
1000p
1000p
0.1
1
50V
0
10
6.3V
1
50V
22k
0.1
SRC1202S
SRA2202S
SELS6B14C-LF62
SELS6B14C-LF62
SELS6B14C-LF62
SELS6B14C-LF62
220
220
220
330
470
680
1k
1.5k
2.2k
4.7k
2.2k
1.5k
1k
680
470
330
220
560
SLR-343-YC
SLR-343-YC
560
560
SLR-343-YC
560
SLR-343-YC
560
SLR325VR-T31
SLR325VR-T31
SRC1202S
SRC1202S
SRC1202S
SRC1202S
SRC1202S
SRC1202S
1k
1k
4.7
16V
16V
10000p
NJL74H400A
1SS133T-77
19P
10k
0
AC DET
KEY1
KEY2
SIRCS
D-GND
+8V
LCD_RS
POWERKEY
LCD_CS
LCD_CLK
LCD_DATA
CDSYNC_LED
DSG_LED
TC_LED
CD_LED
TU_LED
STBY_LED
BACKUP4.0V
+8V
LIQUID CRYSTAL DISPLAY
D506-509
(LCD BACK LIGHT)
Q507,508
B+ SWITCH
G
I
O
REMOTE
CONTROL
RECEIVER
LED DRIVE
(STANDBY)
CD SYNCHRO
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
LED DRIVE
DSG
TAPE
TUNER
CD
TAPE
TUNER
FM
DSG
TUNER
AM
TAPE
TUNING +
VOLUME +
VOLUME -
FUNCTION
TUNING -
CD
CD
CD
REC
10
µ
H
4.7µH
(Page 11)
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