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B.
No disc
.Power on
Check loading Part.
Does tray open or close?
NO
Push Pick-up to inner track to the end by hand.
YES Does PMD03 Pin 7 change high to low? YES Pressing the open/close key repeatedly, check the voltage of IC2M1 Pins 13, 14 change 0V to 5V YES Does the voltage change at PMD04 Pins 1, 2 more than 2V on the basis of 3.8V? YES
NO
DECK assembly is defective. (Limit sw)
NO check µ-COM Part.
NO Replace IC2M1.
DECK assembly is defective. Fig.1. SLED Driver waveform
Does the pick-up slide inner or outer track? YES
NO
Check SLED Driver output. IC201 Pin 88 IC2M1 Pins 28, 29.
IC201 Pin 88 no output : IC201 is defective IC2M1 Pin 18 no output : IC2M1 is defective
Fig.2. Focus Driver waveform NO Check Focus Driver output. (IC201 Pin 83, IC2M1 Pins 37, 38) IC201 Pin 83 no output : IC201 is defective IC2M1 Pins 1, 2 no output : IC2M1 is defective
Does the pick-up lens move up and down? YES Slide the pick-up to inner track.
END
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 $4.99 L56 NAD
Manual de Usuario Manual del propietario completo en formato digital. El manual estará disponible para descarga como …
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