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GX20 CONFIDENTIAL
[4] Schematic diagram/wiring side of P.W.Board

MAIN PWB-A (1/3)

A MAIN PWB-A(1/3)




TFT-COM


COMDC
VCOMH
T-COM
T-COM

COMC
COMC
CN404




G0
G1
G2
G3
G4
G5
R0
B0
B1
B2
B3
B4
B5
10

12
13
14
15
16
17
18
19
20
11
1
2
3
4
5
6
7
8
9
AND GATE
TC7SZ08A




C462
3
2
1




4.7
IC405




R433
56K
C449
4.7
4


5
C448




G0
G1
G2
G3
G4
G5
R0
B0
B1
B2
B3
B4
B5
B 1




8 7 6 5 8 7 6 5 8 7 6 5 8 7 6


1 2 3 4 1 2 3 4 1 2 3 4 1 2 3




G0
G2
G4




G1
G3

G5
R0
R2
R4




R1
R3
B4




B1
B3
B5
C 8 7 6 5 8 7 6 5 8 7 6 5 8 7 6




L449
L448




L450
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3




101




R1 100
29
87
77
64




89
39
30
28
86
65

G5 63
99




R3 98
C428




B4
G0
G2
G4

R0
R2
R4
B1
B3
B5
G1
G3
1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35




D CAPA3+
CAPA3-
CAPA2+ C427
CAPA2- 1 TP419
CAPA1+ C425 SUBD6




21 17 35 78 110 122 80 136 123 27 66 57 58 67 55
CAPA1- SUBDB6
4 3 2 1 4 3 2 1 4 3 2 1


5 6 7 8 5 6 7 8 5 6 7 8




C426 1 SUBD4 IC
VOUT SUBDB4
1 C424 SUBD2 L447
VREG
0.1 SUBD0
SUBDB2 LR
VEE SUBDB0
VDD
SUBCKS
SUBD3
SUBDB3 DI
SUBD1
CKS SUBDB1
SUBCK SUBCKS L446




12

12

24

36

48

60

72
CK SUBCKS
SUBLP
GND SUBLPIN
EXTERNAL DISPLAY




SUBFLM SUBCK




23

35

47

59

71
11

11
FLM SUBCK
SUBLP SUBFLM L445
LP SUBFLMIN
E SUBD7 SUBD7