Zenith DVD5201 Service Manual page 23

3. Micro Circuit
Power is on
Does
Zenith Logo appears
on the screen.
YES
YES
YES
_ OPTION
_ If included VCD function.
Does the audio sound
output normally?
YES
END
VR166 - 923-03461
ELECTRICAL
NO
Check power & clock.
YES
NO
Is Micro Circuit
Data signal normal
YES
YES
Is error signal normal?
NO
Is Micro data
signal normal?
YES
Is Clock normal?
YES
Does the audio
NO
sound output from Micro
decoder?
YES
23
NO
Check CD/DVD DSP output
signal.
OK
NO
Check CD/DVD DSP output
signal.
NO
Check CD/DVD DSP output
signal.
NO
Check clock signal
Check clock signal
DVD2 - SERVICING