Read Sony DVP-FX730 / DVP-FX735 Service Manual online
-
DVP-FX721/FX730/FX735
START
Power on
Power
green LED
on
Do all
the buttons work
normally?
Does
remote control work
normally?
Check P3V3
Does
U4 (MT1389LP)
OK?
Does IR1 work
by testing waveform
normally?
Is the Battery
OK?
Check
HA4 on the
MAIN board
Replace
U4 (MT1389LP)
Replace battery
Replace IR1
Check the buttons
Is P3V3 OK?
Check power
3. Front Circuit
YES
YES
YES
NO
YES
YES
YES
YES
YES
NO
YES
NO
NO
NO
NO
NO
NO
Do the U14
work normally?
Replace U14
YES
NO
Check U14
Replace U14
NO
Check U4
(MT1389LP)
Replace
U4 (MT1389LP)
NO
YES
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