Schematic Diagram - Sub Woofer Board - (Gx555/Rg475/Rg575 Only) - Sony MHC-RG270 Service Manual

6-18. SCHEMATIC DIAGRAM – SUB WOOFER Board – (GX555/RG475/RG575 only)
CN501
3P
SW-SIG IN
SW-SIG GND
SW-ON/OFF
(Page 35)
CN502
6P
+Vcc
GND
-Vcc
OVERLOAD/DC DETECT
RELAY+
(Page 37)
RELAY-
HCD-GX355/GX555/RG270/RG475/RG575
1 2 3 4 5 6 7
Q507
2SC3052
TEMPERATURE
DETECT
R506
R530 1
22k
JW521
C507
JR501
C516 C505
0 50V
10 10p
50V
C502
220p
R504
47k
R503
1k
C504
R502 22
47k 25V
R531 D507 R534
4.7k 1SS355 1
2SC3052
Q505,506
DC DETECT
POWER AMP
IC501
STK404-130
8 9 10 11 12 13
R511
0.22
R507 5W
C508
4.7k
220p
1W
R510
0.22
5W
R508
4.7k R513
47
1W 1k
C513 Q501
R509
0.1 2SC5625
100
50V
OVER LOAD
C512 DETECT
R514
0.1
22k
50V
R505
4.7k
1W R512 R527
10 10
R525 R526 R515
10 10 47k
D503
1SS355
R523
100
R521
100
R524 R532 R520
Q506 Q505 47k 22k 100k
2SC3052
Q503
2SC3052
TEMPERATURE
DETECT
C514 C517
R533
100 10
22k
35V 50V
39 39
HCD-GX355/GX555/RG270/RG475/RG575
R518
10k
R519
NM
R517
10k
Q502
2SA1235
RELAY
DRIVE D504
RY501
1SS355
JR502
0
C520
NM
R522
100
R516
220
JK501
SW (+)
SUB WOOFER OUT
IMPEDANCE
SW GND
USE 6-16Ω