MiTAC 8399 Manual De Usuario
8399
8399
N/B Maintenance
N/B Maintenance
108
Display
OK?
External Monitor No Display
1. Confirm monitor is good and check
the cable are connected properly.
2. Try another known good monitor.
Replace faulty monitor.
Yes
No
Yes
Re-soldering.
No
Parts:
U12
U20
J2
Q5
Q6
R420
R423
L15
U39
U40
L18
U20
J2
Q5
Q6
R420
R423
L15
U39
U40
L18
Signals:
Check if J2
are cold solder?
CRT_DDDA
CRT_DDCK
CRT_HSYNC
CRT_VSYNC
CRT_TED
CRT_GREEN
CRT_BLUE
CRT_IN#
CRT_DDCK
CRT_HSYNC
CRT_VSYNC
CRT_TED
CRT_GREEN
CRT_BLUE
CRT_IN#
R421
R422
L16
L17
L12
L13
L14
CP1
CP2
C1
R422
L16
L17
L12
L13
L14
CP1
CP2
C1
Check following parts and signals:
RP2
C410
C411
C412
R12
R13
R68
R69
C410
C411
C412
R12
R13
R68
R69
There is no display or picture abnormal on CRT monitor, but LCD can normally display.
Board-level
Trouble shooting
Trouble shooting
Replace
Mother board
Mother board
8.5 External Monitor No Display(1)
MiTac Secret
Confidential Document