MiTAC 7521 N - External Monitor no Display

99
7521
7521
N/B MAINTENANCE
N/B MAINTENANCE
U22
SIS 630
G
D
S
G
D
S
RED
GREEN
BLUE
HSYNC
VSYNC
DDDA
DDCK
Q23
Q22
L514
L511
L510
L509
L515
L513
L508
+5V
R256
R261
+3V
R518R516CRT_IN#
J506
1
2
3
13
14
12
15
10
7.4 EXTERNAL MONITOR NO DISPLAY
There is no display or picture abnormal on CRT monitor.
CRT MONITOR
C504
R621
0
R620
R205
R206