Printed Wiring Board -Key Section (2/2) - Sony WX-GT77UI Service Manual

4-10. PRINTED WIRING BOARD – KEY Section (2/2) –
1 2
A
KEY BOARD (SIDE B)
B
C
R22
R85
R86
D
R84
R52
R51
E
R89
R90
R88
F
G
WX-GT77UI/GT78UI/GT78UIM
• : Uses unleaded solder.
3 4 5
R81
R82
R80
R49
R40
R50
R100
Q40
R99
R98 60
C11
61
Q42
IC2
80
R32
Q41
R96
1
R95 C7
Q43 R102
R101
GT77UI
R54
R53
6 7 8
C15
41
40
1
R72
21
20
R74
R73
R77
R78
R76
SUB BOARD CN3
25 25
9 10 11
R3
R5
R7
R9
R60
R23
R21
3
17
CN1
4
R1
R6
R10
R15
R30
1
C9
R29
IC1
IC1
B
(Page 22)
WX-GT77UI/GT78UI/GT78UIM
12 13 14
R46
R61
R62
R48
R19
2
1
S1
PUSH DIAL
SELECT
(VOLUME)
5
R64
R65
R66
R17
FB1
2 3
JAC1
AUX
FB3