Read Sony DVP-FX730 / DVP-FX735 Service Manual online
-3
DVP-FX721/FX730/FX735
Power is on
Does logo appear
on the screen?
Check power & clock
Does
the moving picture
of the DVD disc play
on the screen
normally?
Does
the moving picture
of the CD disc play
on the screen
normally?
Is MPEG data
signal normal?
Is error signal
normal?
Check CD/DVD
DSP output signal
Check MPEG decoder
input signal
Is clock normal?
Check clock signal
Check clock signal
Does the audio
signal output from MPEG
decoder?
Does the
audio sound output
normally?
2. MPEG Circuit
NO
NO
NO
YES
YES
YES
YES
YES
OK
OK
U4 (MT1389LP)
U4 (MT1389LP)
OK
YES
NO
YES
NO
NO
NO
YES
NO
NO
Check CD/DVD
DSP output signal
Check MPEG decoder
input signal
Check CD/DVD
DSP output signal
Check MPEG decoder
input signal
Is MPEG data
signal normal?
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