Clean with disc to turn but don't read, finally still show "no disc". HKsservice manual download site
HKsservice manual download site
Measuring IC01 KA9220 (13) foot voltage fluctuates up and down in the 1 v, and constant for 5 v, illustrate the disc speed instability, and test drive block KA9528 (11), (12) feet of voltage stability, and voltage stability after release the motor. HKsservice manual download site
Spindle motor damage or internal brush contact undesirable, returned to normal after injection of anhydrous alcohol cleaning.HKsservice manual download site
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