Read Sharp CD-MD3000 (serv.man7) Service Manual online
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CD-MD3000H/CD-MD3000W
• The sled motor does not rotate.
Yes
Do the pins 22 and 23 of IC1201 change with the
/
button?
No
No
Do the pins 14 and 15 of IC1601 and the pins 3 and 4 of CN1402
change with the / button?
change with the / button?
Check IC1601 and soldering of CN1402.
Yes
Does voltage of the + and - terminals on the sled motor
change with the / button?
change with the / button?
No
Check the soldering connected to the sled motor and for
disconnection.
disconnection.
Yes
Replace the sled motor.
• The spindle motor does not rotate.
Is waveform output from the pins 24 and 25 of IC1201 in the step
4 of AUTO auxiliary adjustment mode of TEST mode?
4 of AUTO auxiliary adjustment mode of TEST mode?
Check IC1601, CN1402, and soldering of mechanism switch PWB.
Is waveform output from the pins 9 and 10 of IC1601 and the pins
5 and 6 of CN1402?
5 and 6 of CN1402?
Replace with a spindle motor (complete).
No
No
Yes
Yes
Check the pins 24 and 25 of IC1201, soldering of peripheral circuit,
and parts.
and parts.
Check the waveform of pins 22 and 23 of IC1201, peripheral parts,
and soldering.
and soldering.
