SHARP MDE9000H
Manual de Servicio

MD-E9000H
Check in the test mode � The spindle motor does not rotate.
Is waveform output from the pin 25 of IC1201 in the step 4 of AUTO auxiliary adjustment mode of TEST mode ? Yes Is waveform output from the pins 9 and 10 of IC1601 and the pins 5 and 6 of CN1401 ? Yes Replace with a spindle motor (complete). Check IC1601, CN1401, and soldering of mechanism switch PWB. No No Check the pin 25 of IC1201, soldering of peripheral circuit, and parts.

� The sled motor does not rotate.
Do the pin 23 of IC1201 change with the Yes Do the pins 14 and 15 of IC1601 and the pins 1 and 2 of CN1401 change with the / button ? Yes Does voltage of the + and - terminals on the sled motor change with the / button ? Yes Replace the sled motor. Check the soldering connected to the sled motor and for disconnection. No Check IC1601 and soldering of CN1401. / button ? No Check the waveform of pin 23 of IC1201, peripheral parts, and soldering.

No

� 75 �