939003714 - N015 CD CHANGER DEVICE NOT WORKING

it may be difficult or impossible to play mastered CDs. Test the operating using original CDs or CDs recorded on good quality media
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
Check the CDs are inserted correctly in the CD changer housings.Move on to Step 1CDs not inserted correctlyInsert the CDs correctly
1CHECK THE CD CHANGER POWER SUPPLYALL OKPROBLEMS ENCOUNTEREDACTION
Check the continuity of the wiring between Connect and the CD ChangerCheck the power supply to the CD-changer is correctMove on to Step 21.Wiring interrupted1. Restore wiring continuity
2. Power supply interrupted2. Restore power supply, see wiring diagram    See E3510 RADIO
3. CD changer activation signal interrupted3.Restore the activatino signal, see the wiring diagram    See E3510 RADIO
2CHECK THE COMMUNICATION SIGNALS BETWEEN CONNECT AND THE CD CHANGERALL OKPROBLEMS ENCOUNTEREDACTION
Check the presence of audio communication signals between the CD-Changer and Connect by carrying out    See Test 5580PL CHECK OPERATION OF SIGNALS BETWEEN CD-CHANGER AND CONNECTMove on to Step 31. Audio signals interrupted.1.Restore wiring continuity
2. Communication signals interrupted2.Restore wiring continuity
3. CD changer defective3. Replace the CD changerOp. 5570T85 CD/AUDIO PLAYER LOADER - R R
3CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present.End of diagnosis