Mitac secret confidential document, 3 vga controller test error lcd no display-2, U709 south bridge ich6-m – MiTAC 8050QMA User Manual
Page 117
116
80
80
50QMA
50QMA
N/B Maintenance
N/B Maintenance
L19
120Z/100M
+3VS
R31
1M
F1
2A
Q4
AO4419
S
D
2
3
1
6
7
8
5
G
R28
0
1,2
C10
1µ
LVDS_ENVDD
C15
0.22µ
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.
U710
North Bridge
Intel 915PM
P
5
17
19
20
PANEL_ID0
PANEL_ID1
PANEL_ID2
J2
LCD Connecto
r
P
10
LVDS_CLK
LVDS_CLK#
EDID_CLK
EDID_DATA
LVDS_TX2
LVDS_TX2#
LVDS_TX1
LVDS_TX1#
13
15
19
21
27
25
22
20
U709
South Bridge
ICH6-M
P
9
LCD
Inverter Board
+3VS
R13
20K
+3VS
R14
20K
+3VS
R15
20K
J1
Invert
er
P
10
L23
120Z/100M
+VDD3S
9
ENABKL_VGA
U13
Keyboard BIOS
W83L950D
P
23
L25
120Z/100M
+DVMAIN
1,2
3
L22
130Z/100M
L21
130Z/100M
4
C22
0.01µ
C11
1000P
C13
0.1µ
C12
0.1µ
R3
0
+3VS
LVDS_ENBKL
H8_ENABKL
80
BLADJ
11
H8_LIDSW#
16
R1
470K
+3V
R511
1K
Cover Switch
SW1
30V/0.1A
C1
0.1µ
LVDS_ENBKL
1
2
PANEL_ID3
+3VS
R25
20K
S
D
G
R33
10K
Q5
2N7002
J723
MXM_Connector
P
5
IGP_LVDS_CLK
IGP_LVDS_CLK#
IGP_EDID_CLK
IGP_EDID_DATA
IGP_LVDS_TX2
IGP_LVDS_TX2#
IGP_LVDS_TX1
IGP_LVDS_TX1#
From J723
P
5
MiTac Secret
Confidential Document