Philips DVP3156 Service Manual page 20

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Check whether all the voltages
from the power board to the
decoder board are normal.
Yes
Check if the reset circuit consisting
of CE10, and D3 is normal (at a
high level for tens of milliseconds,
then constantly at 0V).
Yes
Check whether there is
27MHz signal output.
Yes
Check if there is
128MHz signal output
Yes
Check if short-circuit and
bad solder exist on Pin Y1
Yes
Reconnect the component in
short-circuit
UserManuals.info
4-10
No
Check the loaded circuit
No
Change CE10, and D3.
Crystal oscillator Y1 and
No
peripheral components
are defected or eroded.
No
SDRAM(R59 SDCLK) waveform
No
Trouble shooting chart
Remark: Trouble shooting chart for
DVP3160K/XX
CVBS(R85 point) waveform
27M waveform
Check whether short-circuit
or bad solder on U7
No
Yes
Check U2.