MiTAC 8575 - Page 149

148
8575
8575
N/B Maintenance
N/B Maintenance
8.4 External Monitor No Display
There is no display or picture abnormal on CRT monitor, but it is OK for LCD.
Q506
2N7002
G
S
D
U4
IGUI
Host/Memory
Controller
SiS650
P7
CRT_DDDA
CRT_HSYNC
CRT_VSYNC
CRT_DDCK
R566
100
R546
33
R547
33
R548
100
Q501
2N7002
G
S
D
Q502
2N7002
G
S
D
Q505
2N7002
G
S
D
R552
2.2K
R558
2.2K
+3VS
+3VS
CRT_RED
CRT_GREEN
CRT_BLUE
L503 120Z/100M
L502 120Z/100M
L501 120Z/100M
4
3 2
1
5
6 7
8
XX
RP502
75*4
4
3
2
1
5
6
7
8
CP501
22P*4
4 3
2
1
5 6
7
8
XX
CP502
22P*4
J2
P10
External VGA Connector
JL1
JL501
VVBWN
VCOMP
C600
0.1µ
C593
0.1µ
DACAVDD1,2
C583
0.1µ
C584
1µ
+1.8VS
C561
10µ
L514
120Z/100M
JL509
DACAVSS1,2
VRSET
R545
130
FA501
120OHM/100MHZ
C1
1000P
+3VS
R2
1K
R1
1K
CRT_IN#
To U14 SiS961
P15
5
12
13
14
15
1
2
3
6,7,8,10
REFCLK0
From U508
Clock Gen.
P11