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8.3 VGA Controller Test Error LCD No Display-2
There is no display or picture abnormal on LCD although power-on-self-test is passed.
LVDS_ENVDD
P
5
P
From J723
5
IGP_LVDS_CLK
U710
IGP_LVDS_CLK#
IGP_EDID_CLK
North Bridge
IGP_EDID_DATA
IGP_LVDS_TX2
Intel 915PM
IGP_LVDS_TX2#
IGP_LVDS_TX1
IGP_LVDS_TX1#
LVDS_ENBKL
P
9
U709
South Bridge
ICH6-M
80
P
H8_ENABKL
23
U13
11
BLADJ
Keyboard BIOS
16
H8_LIDSW#
W83L950D
80
50QMA
N/B Maintenance
80
50QMA
N/B Maintenance
R28
0
R33
10K
Q5
2N7002
P
J723
MXM_Connector
R15
20K
PANEL_ID0
PANEL_ID1
PANEL_ID2
PANEL_ID3
+3VS
1
LVDS_ENBKL
2
+3V
R1
R511
470K
1K
C1
0.1µ
Q4
AO4419
F1
8
2A
3
7
+3VS
2
6
5
1
S
D
R31
G
1M
5
+3VS
+3VS
+3VS
R14
R13
R25
20K
20K
20K
ENABKL_VGA
R3
0
120Z/100M
+VDD3S
SW1
+DVMAIN
120Z/100M
30V/0.1A
C22
0.01µ
Cover Switch
J2
L19
120Z/100M
1,2
C15
C10
1µ
0.22µ
P
10
13
LVDS_CLK
15
LVDS_CLK#
EDID_CLK
19
EDID_DATA
21
LVDS_TX2
25
27
LVDS_TX2#
LCD
20
LVDS_TX1
22
LVDS_TX1#
+3VS
17
19
20
J1
L22
130Z/100M
3
L21
P
130Z/100M
10
4
L23
9
L25
1,2
C11
C13
C12
0.1µ
1000P
0.1µ
Inverter Board
116
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