Printed Wiring Board -Power Amp Section - Sony HCD-GX25 Service Manual

HCD-GX25/RG220
5-25. PRINTED WIRING BOARD — POWER AMP SECTION (HCD-RG220: EA MODEL) — • Refer to page 30 for Circuit Boards Location.
1 2 3
POWER AMP BOARD
A
E C
E C
B
B
C
E
R504
B
C
C
E
D
B
C
R503
E
E
B
C
E
R501
F
G
R571
(+) (–)
L L501
SPEAKER
( )
IMPEDANCE
JK502
USE 6–16Ω
R
H
I
EP502
4 5 6
B
EP501
B
C514
C518
R538
C522
C512
C513
C517
E C B
E C B
R537
C511
R56
R99
R81 R86
C33
C24
C540
C41
S S
RY501
C34 C37
R570
L502
CN502
CN501
MAIN BOARD G3 MAIN BOARD H3
CN307
CN306
(Page 40) (Page 40)
: Uses unleaded solder.
7 8 9
C23
LP902
C22
GX25,RG220:
EXCEPT AEP,UK,RU
C9
GX25,RG220:
EXCEPT AEP,UK,RU
C10
C12
C11
C531 E C B
E C B
48 48
10 11
• Semiconductor Location
Ref. No.
D2
D3
D4
D5
D6
D11
D12
D13
D16
D17
D18
D19
D20
D23
D24
D25
D26
D27
D29
D30
D31
D32
D33
D34
D35
D36
D37
D38
D39
D40
D41
D42
D501
D502
D503
D504
LP903
D505
D506
D507
EP01
D508
D509
D510
D511
D513
D514
D515
Q5
J3 TRANS BOARD
CN902
(Page 51)
(HCD-RG220:EA)
11
(11)
C13
1-689-641-
Location Ref. No. Location
H-10 Q6 F-8
F-9 Q7 F-7
F-9 Q8 F-8
F-9 Q9 F-8
F-9 Q10 B-3
F-7 Q11 B-3
F-8 Q12 A-3
F-9 Q13 A-4
F-11 Q17 G-4
F-11 Q18 F-4
B-3 Q19 F-3
B-3 Q20 D-4
A-3 Q21 D-5
E-4 Q22 E-4
G-4 Q23 E-4
E-4 Q24 D-4
E-4 Q501 E-2
F-4 Q502 C-2
E-4 Q503 D-2
E-5 Q504 B-2
D-4 Q505 F-2
D-4 Q506 D-3
E-4 Q507 E-3
E-4 Q508 C-3
E-4 Q509 E-3
E-4 Q510 C-3
D-4 Q511 C-4
D-4 Q512 B-3
F-6 Q513 C-4
F-6 Q514 A-3
F-4 Q515 C-4
F-4 Q516 B-4
C-4 Q517 C-4
B-4 Q518 B-4
C-4 Q519 C-4
B-4 Q520 B-4
C-3 Q521 C-4
B-3 Q522 A-4
B-4 Q523 C-4
A-4
Q524 A-4
D-2 Q525 C-4
B-4 Q526 B-5
G-4 Q527 F-5
I-5 Q529 I-4
F-8 Q530 H-6
I-10 Q534 I-9
Q535 I-8
F-8
Q536 I-8