Front Circuit (Dogotrpm & Key) - Sony DVP-FX810 Service Manual

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3. Front Circuit (Dogotrpm & key)
START
Power on
Power
green LED
on
YES
YES
Do all
the buttons work
normally?
YES
TE
L 13942296513
YES
Does
remote control work
normally?
YES
Check P_3V3
YES
Does IR1 work
by testing waveform
normally?
YES
Check IC MT1389
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http://www.xiaoyu163.com
NO
Is P_3V3 OK?
YES
Do
the U8 work
normally?
Check
NO
HA6 on the
mainboard
YES
Check IC MT1389
NO
Is battery OK?
NO
Replace IR1
NO
Replace IC MT1389
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2 9
8
NO
Check power
NO
Replace U8
NO
Check the buttons
NO
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3 6 7 1 3 1 5
Replace IC MT1389
NO
Replace battery
co
.
9-4
9 4 2 8
0 5 8 2 9 9 4 2 8
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9 9
9 9