Trouble Shooting - Buffalo FTD-W932HSR/WH Service Manual

19" LCD Color Monitor

8.2 Trouble Shooting

8.2.1 Main Board
No power
No power
Press power key and look if
the picture is normal
NG
Please reinsert and make sure
the AC of 100-240 is normal
OK
Measure U201 Pin2=3.3V
NG
OK
X401 oscillate waveforms are
normal
NG
OK
Check U401
OK
Replace U501
NG
Reinsert or check the
power section
Replace U201 or check the power board
Replace X401
NG
Replace U401
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Buffalo FTD-W932HSR