Printed Wiring Board Pt (U) Board (Ec55: Us,Cnd); Schematic Diagram - Pt (U) Board (Ec55: Us,Cnd) - Sony HCD-EC55 Service Manual

7-21. PRINTED WIRING BOARD — PT (U) BOARD (EC55: US, CND) —
• See page 29 for Circuit Boards Location.
1 2
EC55 : US,CND
A
PT(U) BOARD
B
15
14
13
C
12
K
MAIN BOARD
11
CN604
10
( (
SUFFIX-12
Page 35
9
( (
SUFFIX-13,-14
D
SUPPLEMENT-1 8
Page 3
E
HCD-EC55/EC77/GX99
:Uses unleaded solder.
3 4 5 6
TP003
POWER TRANSFORMER
(MAIN)
1
RY001
2
3
PT001
POWER TRANSFORMER (SUB)
4
1 2 3
4
5
*
6
NOT REPLACEABLE
*
BULT IN TRANSFORMER
7
8 6
9 7 5
1-872-870-
7-22. SCHEMATIC DIAGRAM — PT (U) BOARD (EC55: US, CND) —
7 1
EC55 : US,CND
A
B
AC IN
C
AC IN
D
E
11 12
(11) (12)
F
• Semiconductor
Location
Ref. No. Location
D051 D-3
D052 D-3
D055 D-3
47 47
2 3 4 5 6
PT(U) BOARD
C051
0.1
RY001
PT001
POWER TRANSFORMER
(SUB)
5
4 6
3 7
2 8
T001
1 9
L TERMINAL (1P)
N
T002
TP003
TERMINAL (1P)
POWER TRANSFORMER
(MAIN)
1 2 3 4 5 6 7
*
* Not Replaceable
Built in Transformer
17 16 15 14 13 12 11 10 9
HCD-EC55/EC77/GX99
Ver. 1.2
7 8 9 10
D051
MC2836-T112-1
D055
MC2838-T112-1
D052
MC2838-T112-1
1 RELAY ON/OFF
2 V STBY
8
3 AC DETECT
4 VH(AC)
K
5 VL(AC)
6 GND
MAIN BOARD(2/2)
7 VL(AC)
CN604
8 VH(AC)
CN051
( SUFFIX-12
8P
HOLDER, CABLE 8P
Page 37
(
SUFFIX-13,-14
SUPPLEMENT-1
Page 3
(
(