Repair Flow Chart - AOC VA320E Service Manual

32"LCD TV

7. Repair Flow Chart

1. No Power (No LED indicator)
Check power cord and board interface
OK
Check CN701 pin 11, 12
5V
OK
Check Q401, Q403, Q406, Q407 around
components
OK
Check logo module
2. Can not start (LED indicator Orange)
Check key board
OK
Check U708, Q701 output
3. No display (LED indicator White)
(A)U401 X243 don't work
Check U401, U402, U405 all power
OK
Check X401 = 60MHz
OK
Connect ISP tool to CN403 , check reply
message if MT5380L boot
OK
Update FW again
NG
5V, FB707 NG
NG
NG
NG
NG
NG
NG
NG
Plug in power cord and interface
Replace power board
Replace Q401, Q403, Q406, Q407
around components
Replace logo module
Repair the key board
Replace around U708, Q701 NG
components
Replace NG component
Replace around NG components
Replace U405
25
VA320E