Sharp CD-C500Z, Руководство по обслуживанию

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Is the standby switch signal(L) being input to pin 50 of the
control
Replace the standby switch.
Is the loading end switch signal (H) being input to pin 49
of the control microcomputer
,
Replace the loading end switch.
I
Is the motor drive output being output from pins 43 and 45
/ o f
The control microcomputer is defective. Replace it.
Yes
Is the motor drive output being output from pins 3 and 10
Is there at pins 7 and 9 of
of the motor driver
No
,
The loading motor (M3) is defective. Replace it.
The loading mechanism is faulty.
No
Check to see if the PWB to
the power supply is damaged.
control microcomputer
The disc 1 switch is defective. Replace it.
Is the photo-interrupter signal (H) being input to pin 47 of Replace the photo-interrupter.
the control microcomputer
No
Yes
Is the motor drive output being output from pins 43 and 45
of the control microcomputer
The control microcomputer is defective. Replace it,
Is the motor drive output being from pins 2 and 10 Is there at pins 7 and 9 of
of the motor driver
No
I
The lift motor (M4) is defective. Replace it.
The lift mechanism is faulty.
Check to see the PWB pattern to
Check the output of pins 53 (DM+) and 54 (DM-)
of
Normal
i
Check the output of pin 2 of
Normal
Defective
is defective. Replace it.
Spin motor M2 is defective. Replace it.
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