Trouble Shooting - Vizio P42HDTV10A Service Manual

Chapter 10
MONITOR DISPLAY NOTHING (PC MODE)
1.
CONFIDENTIAL – DO NOT COPY

Trouble shooting

Start
LED is lighted
Ye
LED is lighting?
Ye
U9 no data out?
Ye
Ye
U9 no data in?
Check P3 D-sub Input
correct
END
Is Power board output
1.
N0
+5V?
Is J1 connector good?
2.
Is DC-DC OK?
3.
Is U4 (3.3V) working ok?
4.
It is in power saving
Check video cable
1.
N0
N0
Is the timing supported?
2.
Check sync input
3.
Check VGASOG rout if
4.
analog (SOG)
N0
It means data to LVDS
1.Is J6 connecting well?
2.Check J1 +5V&+12V
3.Is panel ok?
N0
1.Is U9 working good?
2.Is U11&U12 working good?
3.IS U10 working good?
Page 10-1
File No. SG-0184