Cd Troubleshooting - Pioneer XC-LA21 Service Manual

5. CD troubleshooting

D
Is MECHA ERROR displayed ?
NO
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.
After the CD
TOC is read, are the
number of the total tracks and playing
time displayed correctly ?
YES
Please press CD PLAY/PAUSE key or
CD SELECT key of DISC No.
Do the CD playing and the
CD time display correctly ?
YES
Is the audio signal come
out on the speaker ?
YES
Please push FWD key or REW key
Can you smoothly select the music ?
YES
OK
YES
B
NO
NO
Please tune the CD again.
NO
E
NO
Please check the CD
sleding circuit and tune the
CD again.
• The total track number is incorrectly
displayed
Do the CD head sled to the inner ?
YES
Do the laser radiate normally ?
YES
Do the lens vertical motion ?
YES
Do the disc start to spin ?
YES
Do the head move to outward slowly ?
YES
Please tune the CD servo circuit
XC-LA21
NO
Please check 3P, 4P of
CN4 and 9P, 11P of IC3.
NO
Please check PICK UP
and Q1, L1, D1, R34.
NO
Please check the
connection CN3 and 5P,
2P, 4P of IC3.
NO
Please check the
connection CN4 and 8P,
9P, 11P of IC3.
NO
Please check the
connection CN3 and 5P,
2P, 4P of IC3.
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