Zenith DVD5201 Service Manual page 25

B.
No disc
Power on
Does tray open or close?
YES
Fig.1. SLED Driver waveform
Does the pick-up
slide inner or outer
track?
YES
Fig.2. Focus Driver waveform
Does
the pick-up lens move up
and down?
YES
Slide the pick-up to
inner track.
END
VR166 - 923-03461
ELECTRICAL
Check loading Part.
NO
Push Pick-up to inner track to
the end by hand.
PMD03 Pin 6 change
high to low?
DECK assembly is defective.
NO
NO
Does
NO
YES
NO
YES
NO
YES
IC201 Pin 88 no output : IC201 is defective
IC2M1 Pins 28, 29 no output : IC2M1 is defective
IC201 Pin 83 no output : IC201 is defective
IC2M1 Pins 37,38 no output : IC2M1 is defective
25
DECK assembly is defective.
(Limit sw)
check Micro Circuit
Replace IC2M1.
DVD2 - SERVICING