Sony HCD-EC55 Service Manual page 89

PRINTED WIRING BOARDS — DECK SECTION (EXCEPT US, CND) —
1 2
A
EXCEPT US,CND
DECK BOARD
B
B
MAIN BOARD
CN606
( ( R501
SUPPLEMENT-1
C501
Page 3
R502
C
(CHASSIS)
D
E
J401
AUDIO IN
F
J402
PHONES
G
HCD-EC55/EC77/GX99
• :Uses unleaded solder.
3 4 5
R537 C536
C546
C542
C516
C535
R538
C537
R510
R504 C538
R514
IC501
R544 C514
JR503
TAPE MECHANISM
E E
R546
JR504
DECK
C513
R539
R503
R509 R513
R515
R516 C540
R543
C541
R534
ET501
S501
R521
R517
C531 R527
R525
C527
R522
R518
13 14
R526
C528
(13) (14)
R528
C532 1-872-065-
JACK BOARD
C404
C403
1
C401
C405
9
JW403
C406
(
SUPPLEMENT-1
13 14
(13) (14)
1-872-061-
SCHEMATIC DIAGRAM — DECK SECTION (EXCEPT US, CND) —
6
EXCEPT US,CND
A
B
C
B
MAIN
BOARD(1/2)
CN606
( SUPPLEMENT-1
Page 4
D
E
J
MAIN BOARD
CN605
(
F
Page 3
G
13 13
1 2 3
C546 C516
DECK BOARD R544
0 . 1 47
16V
R506
15k R510
C506 R508
0 . 0 1 330k
IC501
C512 R512
C510 220p 100k
R504
47p
2 . 2 k
HEAD AMP
R546
470
8 7 6 5
C504 C543
2200p 1000p
1 2 3 4 C517
1000p
C503
2200p
R503
C509
2 . 2 k
47p
R545 R515
C505 R507
C513
470
0 . 0 1 330k
1
R511
50V
C511 100k
220p
R505
C501 15k
FFC502 9P 100
TP501 16V R509
C515
47 16V
9V 1
TP502 C502
R501 C545
100
2 . 2 k
PB-Lch 2 0 . 1
16V
TP503
R502
PB-Rch 3
2 . 2 k
TP504
A-GND 4
TP505 R524 C530
3 . 3 k 330p
REC-Lch 5
TP506
C528
REC-Rch 6 C524
R522 470p
1
TP507 47k
M-GND 7
TP508 C532
(
9V 8 0 . 0 1
TP509
R526 R528 R530
C520
330k 330k 2 . 2 k
I-TP-STATE 9 R520
470p
47k
C526
47p
R518 C522
IC502
1k 1
HEAD AMP
5 6 7 8
C533
2200p
4 3 2 1
R517 C521
1k 1
C525
47p
R525 R527 R529
330k 330k 2 . 2 k
C519 R519
470p 47k C531
0 . 0 1
R521
47k
C527
470p
C523
1
R523 3 . 3 k C529 330p
JACK BOARD
FFC404
9P
TP401
AUDIO-L 1 C404 C403
TP402 2 2 k 2 2 k
A-GND 2
TP403
C401
AUDIO-R 3 0 . 1
TP404
HP-GND 4
TP405
J
P-L H 5
TP406
MAIN
P-R H 6
TP407
BOARD(2/2)
AMP-ON 7
C405
CN605 TP408 1000p
SP-RELAY 8
( SUPPLEMENT-1 (
C406
1000p C402
Page 5 GND 9
0 . 1
HCD-EC55/EC77/GX99
Ver. 1.2
4 5
100
150
R514
100k
C514
1
50V
ET501
(CHASSIS)
CN501
8P
R516
0
8
Rch
S501 7 COM
6 Lch
5
VREF
0
4 EH
R513
100k
3 SW
2 M-GND
1 9V
150
R543
100
C542
22
25V
R532
8 . 2 k
C540 C541
4700P 0 . 1
C534
2200p
R540 R541
C539
47
47 C538 1
0 . 0 1
R539
4 . 7
Q501 Q502
2SC1740S-RT 2SC1740S-RT
BIAS OSC BIAS OSC
5 . 5 0 5 . 5
R531
8 . 2 k
0 0
C535 C536
2200p 2200p
R537 C537 R538
10k 2200p 10k
R536 4 . 7 k
R534
15k
R533 R535
22k 4 . 7 k
No mark:TAPE PLAY or REC
J401
AUDIO IN
J402
PHONES