Magnevox CDB486

MoeStevens

New Member
Looking for anyone with experience with this CD changer.
I picked it up at a flea market, and powered it up before buying it. I had to buy a magazine from eBay to test it and was disappointed. I bought a reprinted repair manual, disassembled it, and found 2 broken micro switches. I am in the process of replacing them, and found a obvious after-market modification: 2 ea 1N914 diodes and a cut trace. They form an "or" gate which adds TCMP (Turntable control motor pulse) to the QDA (Q channel data signal) normally sent separately to the microprocessor. I have scoured the Internet and found no clue as to the purpose of the mod. Why these two seemingly unrelated signals have been joined is puzzling. I hesitate to remove the mod until I get the transport working.
By the way, IMHO, do not try to disassemble the changer mechanism without a manual (or contacting me) You will almost certainly break something if you don't know the procedure.
Thanks in advance for any help.
Moe
 
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