Zenith DVD5201, Руководство по обслуживанию

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