Repair Flow Chart - Vizio VW22LHDTV10T Service Manual

22"LCD TV

5. Repair Flow Chart

1. No Power (No LED indicator)
Check power cord and board interface
OK
Check F901, BD901, C905
OK
Check IC901, Q901
OK
Check T901
OK
Check D904, D906
OK
Check ZD920
2. Can not start (LED indicator yellow)
Check key board
OK
Check 5V SB
OK
Check 3.3V SB
OK
Check PWR ON signal
OK
Check main board power supply part
OK
Check U401, U402
OK
2
Check I C communication
NG
NG
Replace F901 or BD901 or C905
NG
Replace IC901 or Q901
NG
Replace T901
NG
Replace D904 or D906
NG
Replace ZD920
NG
Repair the key board
NG
Return to "1"
NG
Check U706
Check U409, Q706, 0704
NG
2
Check I C communication
NG
Replace the main board
Plug in power cord and interface
NG
20
Vizio VW22LHDTV10T
Replace U409 or Q706 or
Q704