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MD-X60H
• Disc loading is not normal.
Is disc loaded when it is inserted?
No
Yes
No
Check IC1401.
No
Check CN1601 and SW1956.
Yes
No
Check CN1604 and IC1601.
Yes
Check CN1604 and CN1604
No
Yes
No
Yes
Is change observed on the pin 23 or 24 of IC1601?
Is change observed on the pin 30 or 31 of IC1601?
Is ejection performed when the MD taking-out button is
pressed?
Yes
Disc retracts soon after completion of disc ejection.
Yes
Check CN1601 and SW1956.
Is the pin 4 of CN1601 set to L state?
• Playback state cannot be set.
Is it impossible to set both high reflection disc and low
reflection disc to playback state?
No
Check as stated in item "TEST mode check".
Yes
Only the high reflection disc cannot be played back.
Yes
Is 1.02V±0.3V (high reflection disc) applied to the pin 93 of
IC1401 in the TEST mode where the high reflection disc has been
inserted?
Only the low reflection disc cannot be played back.
Is 3.2V±0.3V(record enabied) or 2.06V± 0.3V (record disabled)
applied to the IC1401 pin 93 after the low reflection disc has been set?
No
Yes
Yes
After adjustment check as stated in item "Normal playback".
Check SW1951A/B, mechanism switch PWB, and CN1601.
No
Yes
No