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8.2 LCD No Display Or Display Abnormal
Symptom:
The LCD shows nothing or abnormal picture.
P4
U3
Intel StrongARM®
SA1110
Microprocessor
LCD_MCK
R230
P7
U10
LCD_ON
Extend
GPIO
VCC_LCD
VCC_LCD
VCC_LCD
VCC_LCD
VCC_LCD
Barracuda PDA Maintenance
U18
RP6
RPX8
200*8
LCD_B5
4
13
8
BI0
LCD_B1
8
9
6
BI1
LCD_B2
7
10
5
BI2
LCD_B3
6
11
4
BI3
LCD_B4
5
12
3
BI4
LCD_B5
4
13
2
BI5
LCD_G0
3
14
15
GI0
LCD_G1
2
15
13
GI1
LCD_G2
1
16
12
GI2
LCD_G3
11
8
9
GI3
LCD_G4
7
10
10
GI4
LCD_G5
6
11
9
GI5
RP5
RPX8
200*8
LCD_R5
1
16
23
RI0
LCD_R1
5
12
22
LCD_R2
RI1
4
13
19
RI2
LCD_R3
3
14
18
RI3
LCD_R4
4
15
17
LCD_R5
RI4
1
16
16
RI5
RP5
RPX8
200*8
25
DCK
R252
R229
LCD_OE
27
DE
R74
0
29
OEN
C183
R78
0
69
HOEPW
R82
0
72
PANS1
R83
0
73
PANS0
R84
0
75
INVSE
POC
R199
30
100K
POC
C72
78
0.1U
TSTEN
S1L50282F23K100
RP3
RPX8
200*8
BO0
42
8
BO0
BO1
43
7
P10
BO1
BO2
44
6
BO2
BO3
45
5
BO3
BO4
46
4
BO4
BO5
48
3
BO5
GO0
49
2
GO0
GO1
50
1
GO1
RP4
RPX8
200*8
GO2
51
8
GO2
GO3
52
7
GO3
GO4
53
6
GO4
GO5
55
5
GO5
RO0
4
56
RO0
RO1
57
3
RO1
RO2
2
58
RO2
RO3
59
1
RO3
R68
RO4
62
RO4
RO5
63
RO5
R69
R70
39
HCK
R71
37
HSP
R73
35
DLP
R75
34
INV
R76
33
HOE
R77
32
PC
R79
65
VCK
R80
66
VOE
R81
67
VSP
L6
1
VDD
14
VDD
21
120Z/100M
VDD
31
VDD
41
VDD
54
VDD
L7
61
120Z/100M
VDD
74
VDD
C79
C78
C77
0.1U
0.1U
1000P
D20
9
20
D21
10
21
D22
11
22
D23
12
23
D24
13
24
D25
14
25
D10
15
26
D11
16
27
D12
9
28
D13
10
29
D14
11
30
D15
12
31
D00
13
32
D01
14
33
D02
15
34
D03
16
35
D04
36
D05
37
R376
HCK
17
HSP
18
STB
14
INV
12
AP
15
POL
13
VCK
40
VDE
42
VSP
44
C71
22P
VCC_LCD
C76
1000P
J6
VCC_-15
VCC_+15
VCC_5V
P10
39
VDD
D20
41
VGOFF
D21
43
D22
VGON
C75
C74
C73
D23
D24
0.1U
0.1U
0.1U
D25
D10
D11
D12
D13
D14
D15
D00
D01
D02
D03
D04
D05
VCC_5V
HCK
HSP
R66
STB
INV
270K
AP
POL
VR1
COM
VCK
2
100K
COM
VOE
C69
VSP
R67
4.7U
120k
10
VCOM
VCC_LCD
VCOM
VCC
16
C70
0.1U
125
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