Trouble Shooting - Vizio VP505XVT1A Series Service Manual

Chapter 10
MONITOR DISPLAY NOTHING (ANY MODE)
Start
LED is lighted
Yes
LED backlight
is white?
Yes
Is picture on
Screen?
Yes
Is Video
Signal on?
Yes
Continue Forward Page
CONFIDENTIAL – DO NOT COPY

Trouble shooting

N0
Check AC power cord
AC Power cord Fail
N0
Check CON26
Pin5, 6 key Signal
N0
Key Board Fail
N0
Check CON15 Video
Signal
N0
Video Cable Fail or
Source Fail
Check Video Input
N0
Signal
NO
Input Source Fail
Yes
Check Con9 Power supply
N0
Panel Power Fail
Yes
Check MCU Pin 26
Signals
N0
MCU Fail
Yes
Check CON25 Back Light
Signal
Back Light Cable Fail or
Back Light Board Fail
YES
Video Processor
Fail
Yes
Check Fuse Open?
N0
Yes
LED Fail
Yes
Main Board Fail
Page 10-1
File No. SG-0283