![background image](http://html.mh-extra.com/html/sony/hcd-zt4/hcd-zt4_service-manual_1329787031.webp)
HCD-ZT4
HCD-ZT4
31
31
•
: Uses unleaded solder.
• See page 27 for Circuit Boards Location.
7-8. PRINTED WIRING BOARD - TC Board -
8
1
4
5
8
1
4
5
R510
R514
R526
R528
R534
R537
R538
R539
C510
C535
C536
C537
C538
JR503
JR502
JR501
R546
R545
R544
R543
R541
R540
R536
R535
R533
R532
R531
R530
R529
R527
R525
R524
R523
R522
R521
R520
R519
R518
R517
R516
R513
R512
R51
1
R509
R508
R507
R506
R505
R504
R503
R502
R501
C546
C545
C543
C539
C534
C533
C532
C531
C530
C529
C528
C527
C526
C525
C523
C522
C521
C520
C519
C517
C512
C51
1
C509
C506
C505
C504
C503
JR504
C548
C524
EB
E
B
1
8
Q501
Q502
L501
1
3
4
6
CN501
C501
C502
C513
C514
C515
C516
S501
C540
C542
JW502
JW504
JW510
ET501
JW508
JW507
JW506
JW505
JW501
JW509
JW503
BIAS OSC
IC501
IC502
TAPE MECHANISM
DECK
9
1
B
MAIN
BOARD
CN450
FFC502
S501
(REC/PB)
PB
U
REC
1-875-675-
14
(14)
A
B
C
1
2
3
4
TC BOARD
(CHASSIS)
(Page 35)
7-9. SCHEMATIC DIAGRAM - TC Board -
21
CN450
MAIN
(1/4)
B
BOARD
9
4.4
4.4
4.3
4.4
4.4
4.4
4.4
4.4
4.4
9
4.4
4.4
4.4
(5.3)
0.3
0.3
(0)
0
(0.2)
(5.3)
0.3
0.3
(0.1)
6
2
1
3
5
4
100k
R511
100k
R513
0
R516
100k
R512
100k
R514
R540
47
R541
47
R539
4.7
R537
10k
R538
10k
R536
4.7k
R535
4.7k
R534
15k
R533
22k
R503
2.2k
R504
2.2k
2.2k
R501
2.2k
R502
R517
1k
R518
1k
R520
47k
R519
47k
R521
47k
R522
47k
R526
330k
R528
330k
R525 330k
R527
330k
R530
2.2k
R529
2.2k
R531
8.2k
R532
8.2k
R523
3.3k
R524
3.3k
470
R545
470
R546
1000p
C517
220p
C511
220p
C512
47p
C525
47p
C526
2200p
C537
2200p
C536
2200p
C535
C539
1
C538
0.01
C505 0.01
C503
2200p
C504
2200p
C506
0.01
C519
470p
C520
470p
C521
1
C522
1
C532 0.01
C531 0.01
C534
2200p
C533
2200p
C540
4700p
1000p
C543
1
C524
1
C523
0.1
C545
0.1
C546
C527 470p
C528
470p
C530
330p
C529
330p
2SC1740S-RT
Q501
2SC1740S-RT
Q502
1
2
3
4
5
6
7
8
8P
CN501
9V
M-GND
SW
EH
VREF
LCH
COM
RCH
E
ET501
10V
100
C502
10V
100
C501
50V
1
C513
50V
1
C514
16V
47
C516
16V
47
C515
25V
22
C542
TP501
TP502
TP504
TP503
TP505
TP506
TP508
TP509
TP507
8
7
6
5
4
3
2
1
GND
VCC
8
7
6
5
4
3
2
1
GND
VCC
220
R544
220
R543
270
R509
270
R510
R506
12k
R505
12k
R507 270k
R508 270k
TP510
TP511
TP512
TP513
TP514
TP515
TP516
TP517
100p
C509
100p
C510
1000p
C548
TC BOARD
(CHASSIS)
BIAS OSC
L501
PB-RCH
9
REC-RCH
1
REC-LCH
TP-STATE
PB-LCH
M-GND
A+9V
M+9V
A-GND
FFC502
7
D
B
6
F
5
3
G
1
C
E
8
4
A
2
9
TAPE
MECHANISM
DECK
NJM4558M-TE2
IC501
PB AMP
IC501
NJM4558M-TE2
IC502
IC502
REC AMP
OSC
Q501, 502
S501
(REC/PB)
PB
REC
• See page 34 for Waveforms.
(Page 36)