Mpeg Circuit - Sony DVP-FX850 Service Manual

2. MPEG Circuit

Power is on
Does logo appear
on the screen?
YES
Does
the moving picture
of the DVD disc play
on the screen
normally?
YES
Does
the moving picture
of the CD play
on the screen
normally?
YES
Does the
audio sound output
normally?
NO
Check power & clock
YES
NO
Is MPEG data
signal normal?
OK
YES
Is error signal
normal?
MT1389HD
NO
Is MPEG data
signal normal?
MT1389HD
YES
Is clock normal?
Does the audio
NO
signal output from MPEG
decoder?
9-3
NO
NO
NO
YES
NO
NO
Check CD/DVD
DSP output signal
OK
Check MPEG decoder
input signal
Check CD/DVD
DSP output signal
OK
Check MPEG decoder
input signal
Check CD/DVD
DSP output signal
OK
Check MPEG decoder
input signal
Check clock signal
Check clock signal