Philips DVP5160/12 Service Manual page 20

No video picture, no sound.
Check whether all the voltages
from the power board to the
decoder board are normal.
Check if the reset circuit consisting
of CE10, and D3 is normal (at a
high level for tens of milliseconds,
then constantly at 0V).
Check
128MHz signal output
Check if short-circuit and
bad solder exist on Pin Y1
Reconnect the component in
short-circuit
No video picture,
no sound.
Go
Yes
Yes
Check whether there is
27MHz signal output.
Yes
if there is
SDRAM(R59 SDCLK) waveform
Yes
Yes
4-10
Remark: Trouble shooting chart for
No
Check the loaded circuit
No
Change CE10, and D3.
Crystal oscillator Y1 and
No
peripheral components
are defected or eroded.
Check whether short-circuit
No
or bad solder on U7
No
Trouble shooting chart
DVP5160/XX
CVBS(R85 point) waveform
27M waveform
No
Yes
Check U2.