Printed Wiring Board; Deck Board (Except Ec68: Uk Model) - Sony HCD-EC68 Service Manual

HCD-EC68/EC78
Q Q
3 7 6 3 1 5 1 5 0
7-3. PRINTED WIRING BOARD - DECK Board (Except EC68: UK model) -
• See page 23 for Circuit Boards Location.
•
1 2
DECK BOARD
C506 R506
A
9
JW502
R508 C510
R504
C504
C543
8 5
JW503
C517 1 4
C511
K
C503 IC501
1
R503 C509
MAIN
BOARD
R505
C501
R502 C502
CN606 C505
R507
(Page 27) C545
R501
B
JW501
ET501
R521
R517 C523
C521 R519
JW505
(CHASSIS) C519
C524
C522
R520
C520
R522
R518
C T E
L 1 3 9 4 2 2 9 6 5 1 3
D
w w w
HCD-EC68/EC78
: Uses unleaded solder.
3 4
C516 R537 C536
C546
R538
C535
R535
R510
C537
R544
C542
C538
C512 Q502
Q501
C514
L501
R546 R514
R512 BIAS OSC
JR503
3
R511 1
R539
C513
R541
R513
R545
6 C539
JR502 4
C515 R540
R509
JR501
JW504
CN501
R536
C540
R543
R515 R516
R534
S501
(REC/PB)
PB REC
C531
R527
C525
JW508
JW510
C529
JW507
R525 C527
R529
R533
R523
4 1
JW506
C533 R531
IC502 R524
5 8
JW509
C534
R532
R526 C528
R530
C526
C532 R528 C530
1-875-501-
S501
-1
-2
x a o
y
. i
http://www.xiaoyu163.com
7-4. SCHEMATIC DIAGRAM - DECK Board (Except EC68: UK model) -
1 2
DECK BOARD
A
C506
0.01
R504
2.2k C504
2200p
B R501
C543
1000p
TAPE
MECHANISM
DECK
C
D
TP501
1 9V
TP502
PB-Lch
TP503
PB-Rch
K
TP504
A-GND
TP505
REC-Lch
MAIN
BOARD TP506
REC-Rch
(2/2)
CN606 TP507
M-GND
E (Page
TP508
9V
29) TP509
9 I-TP-STATE
Q Q
11
3 7 6
(11)
F
G
H
C542
22
25V
u 1 6 3
.
26 26
2 4
8 9 9
3 4 5 6
C546 0.1
R544 100
R510 150
R506
15k
C516 47 16V
R508
R512
330k 100k R514
C512 C514
100k
C510 220p 1
R546
47p 50V
470
R516
0
2.2k
8 7 6 5
-
+
C503
2200p
1 2 3 4
IC501
S501
(REC/PB)
PB AMP
PB
R503
REC
2.2k
R545 R515
470 0 -1
C505 C509
0.01 47p
C513
R511 R513
1
100k 50V 100k -2
R505
C515
15k R509 150
47 16V
C545
R543 100
C501 0.1
100
16V
C502 R502 C517
100 2.2k
1000p
16V
R524
3.3k
C524 C528
R522
0.1 470p
47k
C540
4700
C522 C532 C530
1 0.01 330p
R526 R528
C520
470p 330k 330k
R530
R520 2.2k
C526
47k
47p
L501
BIAS OSC
3 1 5 1 5 0 8 9 2
IC502
REC AMP
5 6 7 8
-
+
R540 R541
47 47
C538
0.01
4 3 2 1
Q501
2SC1740S-RT 2SC1740S-RT
0.3 (5.2) 0 (0.2)
R517
1k C521 1
0.3 (5.2) Q501,502
OSC
C525
C519
R519 47p
C535
470p R529 R531
47k R525 R527
2200p
330k 330k 2.2k 8.2k
R521
47k
C531
0.01 C529
R537
C523 C527 C533 C534
330p C537
0.1 470p 10k
2200p 2200p 2200p
R523 3.3k R536
4.7k
R533 R534
15k
22k
R535
m
c o
2
8 9 9
• See page 37 for waveforms.
7 8 9
CN501
8P
8 Rch
7 COM
6 Lch
TAPE
5 VREF MECHANISM
DECK
4 EH
3 SW
2 M-GND
9V
1
11
ET501
(CHASSIS)
4 9 8 2 9 9
C539
1
R539 4.7
Q502
0.3 (5.2)
0.3 (5.2)
C536
2200p
R538
10k
4.7k