8224 N/B Maintenance
8224 N/B Maintenance
121
8.4 VGA Controller Test Error LCD No Display-2
There is no display or picture abnormal on LCD although power-on-self-test is passed.
U511
ATI
M56-P
J1
LCD Con
n
ec
to
r
P
16
13
15
26,20,25
28,22,27
14,10,6
L
LVDS_CLK-
LVDS_TX[0..2]+
LVDS_TX[0..2]-
LCD
Inverter Board
R541~R546,,R548,R565
0
1~3
C6
1U
D
S
G
R23
1M
R19
10K
ENBKL_M5X
Q502
AO4403
P
10
P
11
L5
120Z/100M
Q2
AO4403
S
D
2
3
1
6
7
8
5
G
4
C2
0.22U
+3VS
M5X_ENVDD
R21
0
R20
100K
CLK+
CLK-
TX[0..2]+
TX[0..2]-
PANEL_ID[0..2]
PANEL_ID[0..2]
30
29
PDIDDATA
PDIDCLK
0
R1987
0
R1988
+3VS
R591
4.7K
R592
4.7K
U15
KBC
W83L951D
P
31
2
1
4
5
3
U1
NC7SZ08P5
+3VS
H8_ENABKL
J2
Invert
e
r
P
16
4
3
1,2
6
BLADJ
114
L518
130Z/100M
C410
0.1U
R566
0
C534
4.7U
R38
0
33
R41
10K
ENABKL_VGA_C
L8
130Z/100M
+3VS
L6
120Z/100M
L7
120Z/100M
DVMAIN
C14
0.01U
C10
1000P
C16
0.1U
C9
0.1U
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