Printed Wiring Board - Sub Key Board; Schematic Diagram - Sub Key Board - Sony SA-WCT290 Service Manual

4-4.

PRINTED WIRING BOARD - SUB KEY Board -

1 2 3
A
SUB KEY BOARD
(COMPONENT SIDE)
SUB MAIN BOARD
B
C
D
FOR
SERVICE USE
1
10
E
F
SUB KEY BOARD
(CONDUCTOR SIDE)
G
CL8202
CL8205
CL8204
H
CL8206
CL8207
CL8208
I
J
K
SA-WCT290/WCT291
• : Uses unleaded solder.
4 5 6
CN8101
(Page 15)
>001P
S8201 S8200
C8200
R8250
9
CN8200
11
1-981-465-
CL8201
CL8200
CL8203
1-981-465-
4-5.

SCHEMATIC DIAGRAM - SUB KEY Board -

7 8 1
A
B
C
SUB MAIN BOARD
D
11
E
(11)
F
G
H
I
11
(11)
J
K
17 17
2 3 4 5
SUB KEY BOARD
CN8200
9P
CL8200
KEY_POWER 1
CL8201
KEY_PAIR 2
CL8202
UNSW3.3V 3
CL8203
D_GND 4
CL8204
UART_RX 5
CN8101
CL8205
PCONT 6
CL8206
UART_TX 7
CL8207
BT_BOOT 8
CL8208
SDA 9
SA-WCT290/WCT291
6 7 8
CN8201
7P
1 3.3V
2 D_GND
3 UART_RX
FOR
4 PCONT
SERVICE USE
5 UART_TX
6 BT_BOOT
7 SDA
C8200
0.1u
R8250
0
S8200
1
C8201
0.1u
R8251
0
S8201
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