Read Sony BDP-BX59 / BDP-S490 / BDP-S590 Service Manual online
9-8
Rem
ote control does not o
perate
Check of +3.3V voltage at IC703 pin1?
No
(M
B board)
No
To Power supply flow chart
Y
es
No
Check
FFC disconnected from
CN703 or broken?
Y
es
Check of appearance waveform during
pressing remote control at IC703 pin2
No
Y
es
Check of +3.3V voltage at CN1002 pin 3?
Check of +3.3V voltage at CN703 pin 2?
No
Replace FFC
If symptoms do not improve,
Change FR board
Check of appearance waveform during
pressing remote control at CN1002
pin3 (MB board)
Y
es
Y
es
Change IF Board
No
Check
of appearance waveform
during pressing remote control
at CN703 pin3
No
Replace IC1002
If symptoms do not improve,
Change IF board
Check pattern along SIRCS line
If symptom do not improve,
Change IF board
Check
FFC disconnected from
CN701 or broken?
No
Reconnect
FFC
If symptoms do not improve,
Change FFC
Y
es
Y
es
Change FR Board
Y
es
Check pattern around IC703
If symptom do not improve,
Change IF board
CHECK IC101
BDP-BX59/S590/S490
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