Question about Alpine CDA-7892 CD Player

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Alpine cda-7892 Head unit overheating

I have installed the 7892 in an older BMW with good speakers for all 4 channels. All lights are fine,CD plays, radio plays both with low power and high distortion on all 4 channels, The top of the unit around the output IC area is VERY hot and remains so even with the speakers disconnected. What oh what can the problem be?

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Re: Alpine cda-7892 Head unit overheating

Certainly, the output IC might need to be replaced, also check to see if there is a factory amp somewhere in the car. Additionally, double-checking the wiring is a must. How long does it take for the unit to heat up?

Posted on Mar 30, 2006

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Good luck my friend.

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Cd playes no sound

You may have your speakers wires shorting out somewhere. Try to isolate each channel till you find the one that is shorted out. It is all a case of trial and error. As long as you do not remove the power wire or the constant wire then you can troubleshoot your speaker without causing any harm. Usually there is factory sticker on the underside that says what speakers are which and what channel they are (left front, left rear and so on. Let me know if this helps if not there are more things you can try

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I have a Alpine CDA 7892 CD head unit I just installed and the radio works perfect but when I play a cd it sounds very muffled and I can hear bass only. Is the unit bad?

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Thanks for using FixYa - a 4 thumbs rating is appreciated for answering your FREE question.

Dec 26, 2009 | Alpine CDA-7892 CD Player

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Hi and welcome to FixYa.

Below is the wiring diagram for an Alpine CDA-7892.


It was captured from the user's manual available here.

Good luck and thank you for asking FixYa.

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Hve you checked the mute button??? if so then it needs to see a pro as this is a great unit so it should be serviced only by a great tech. I simply love the alpine seris!!!!!great choice in car audio man!

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