PIONEER XR-MT3/NVXCN
Service Manual

XR-MT3

5. CD troubleshooting
D

� The total track number is incorrectly displayed

Is MECHA ERROR displayed ?

YES

B

Do the CD head sled to the inner ?

NO

NO

YES

Please check 3P, 4P of CN4 and 9P, 11P of IC3.

Open the CD tray by pressing "CD1/2/3 EJECT". Place CD on the tray and close the tray by selecting the corresponding "CD1/2/3 EJECT" key to close the CD tray.

Do the laser radiate normally ?

NO

YES

Please check PICK UP and Q1, L1, D1, R34. NO

After the CD TOC is read, are the number of the total tracks and playing time displayed correctly ?

NO

Do the lens vertical motion ? Please check the connection CN3 and 5P, 2P, 4P of IC3. NO

YES YES Do the disc start to spin ?

Please press CD PLAY/PAUSE key or CD SELECT key of DISC No.

YES

Please check the connection CN4 and 8P, 9P, 11P of IC3. NO

Do the CD playing and the CD time display correctly ?

NO

Do the head move to outward slowly ?

YES

Please tune the CD again.

YES

Please check the connection CN3 and 5P, 2P, 4P of IC3.

Is the audio signal come out on the speaker ?

NO

E

Please tune the CD servo circuit

YES Please push FWD key or REW key

Can you smoothly select the music ?

NO

YES

Please check the CD sleding circuit and tune the CD again.

OK

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