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DIY: Do It Yourself
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Old 08-21-2010, 12:04 PM   #1
Registered User
Join Date: Sep 2006
Location: nj
Posts: 12
My Ride: 325ci
CD player repair? (CD mechanism, "CD error", CD53)

Hey guys, i've been searching like a mad man for the past few days and with everything i fix something new breaks. Started this project to add aux input to my player, had to upgrade the player cause my was too old. I bought 2 newer players but both have CD issues. Not that i intend to use the CD all that much but would still like it to be prefect.

1 player just needs a little push to get the cd in. I have not started working on this one yet, once the cd is in it works fine.

The 2nd player has a bigger problem. As soon as i connect it, it says "cd error", it does not grab a cd when i try to insert, the eject button does nothing. After you turn it off and on the "cd error" msg is gone, and it just says track sometimes but does not work.

I took it apart but no progress, manually inserted a cd thinking maybe it will read it, still "cd error", no sounds from the player indicating that its reading or spinning the cd or anything.

I can't figure out on how to power up the player, or just the cd mechanism when its out of the car for easier testing. I can power up the individual motors inside 1 by 1, they all seem to work. I can power up the player from the pins outside but it says "Disable", i read that its because the radio need the I-Bus signal. Is it possible to just send a signal to that pin to trick? I read that I-Bus is typically 12v, unless the player is in communication. I tried hooking up 12v to it, but no reaction. Measured the signal from the I-Bus pin in the connector in the car, it said 11.3 and stayed pretty constant, but the volt meter did keep beeping, when measuring the normal 12v output the beep is constant, not sure what that means, i dont have the best tools.

THe cd mechanism has 1 plug that goes into the rest of the player, 22 pins, i'm sure i could power that up but i have no specs and no pinouts for it, they are not marked.

So has anyone had some luck fixing these kinds of problems. Any suggestion on how to power up the cd mechanism?
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