Question about Alpine CDA-7892 CD Player

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Does not work

My cd player/deck does not work at all it don't even come on how do i fix it does anybody know can anybody tell me

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Re: does not work

Check fuses? In car and on deck. if good, then an enternal power problem for a tech repair.

Posted on Jan 06, 2008

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LMy JVC CD player reads PROTECT across the screen even after resetting the cd player it still reads PROTECT, I'm so lost now because I don't have amps or anything attached just regular car...

Try checking your speakers and speaker wires for shorts and/or grounds. Make sure none of your speaker wires have any bare spots. If your speakers and speaker wires are fine, you may have a bad internal output ic inside of the deck.


2 Answers

How you set the loud on cd player

Unfortunately for both you and I our deck doesn't have that feature built in.

Sep 19, 2010 | JVC KD-HDR20 Car CD/ MP3 Player

1 Answer

Kenwood KDC-MP528

This is a pretty tough problem to give any answer with complete certainty.

I work at an authorized kenwood service center and it is rare that I see one with this particular problem. I fix about 5 to 10 kenwoods every week.

Since it does not recognise the cd player at all, it could be the one of the supply voltages that feed the cd deck.

It has 3 different supplies for the cd player.

On pin 2 of the connector is the first one I would suspect, it is around 8 volts. If that is missing there are 3 components I would look at. The first one is D5. It is a 8.2 volt zener diode. This is one that could be shorted and if it is the cd deck may not be recognized.

The next 2 components I would check would be Q9 and Q10.
If one of those are open or shorted you will get the same problem. Q9 is a 2SB1443 and Q10 is 2SC4081

if you plan on troubleshootng it yourself, I will post the other data for the other 2 supplies after you reply back.

In any case, I don't think that this is a problem that anybody can fix without some serious electronic troubleshooting.
sorry to say, there is no easy fix on this one.

Hope this was some help

Jun 18, 2008 | Kenwood KDC-MP528 CD Player

1 Answer


hmmmmmmmmmm try alpine support. Audio Products Technical Support
(Alpine Electronics of America, Inc.)
(800) TECH-101 (1-800-832-4101) they should definitely help you out. thats definitely a problem with the decks with the slide out fronts.

Jun 12, 2008 | Alpine CDA-7892 CD Player

2 Answers

Tuner increments

those are odd numbers you decribed there
i understand what your saying to get the even numbers you have to use the remote and single click to what you want and if you want to stop a seek for frequencie hit the button back
you know foward select for scan and then back button for stop and then single press in what you need it takes a little fenness to control for even even numbers you just have to stop scan and seek single taps at a time

Jun 08, 2008 | Pioneer DEH-1900MP CD Player

1 Answer

Head unit turns on sometimes


May 04, 2008 | Alpine CDA-9856 CD Player

4 Answers

How do you reset this deck

There is a reset button on the left front of the deck>

Feb 16, 2008 | Kenwood KDC-MP2035 CD Player

2 Answers

Kdc-x879 won't recognize cd feature

I am sorry to tell you this, but there is no easy fix after pressing the reset button. The unit is not even recognizing the cd player, so it could be one of many different problems, all of them being electronic and inside the unit.

It could be a voltage regulator that supplies the cd deck, it has 3 of them. It could be the ribbon cable that connects the cd deck to the main board, but that is more unlikely. It could even be the microprocessor.
There is just no way to be certain without putting it on a test bench and troubleshooting it with the schematic in front of you.

If you have some electronic troubleshooting skills, I can email the schematic to you. I have it in PDF format and you can check it out as long as you have a power supply, multimeter and knowledge of electronics.

Otherwise, you will need to take it in to an authorized Kenwood repair center.

I hope you found this helpful, but you do have a serious problem with the unit.

I have been repairing these type of radios since they started making them a couple of years ago and this problem has had several different fixes for this same symptom and it has never been an easy fix.

let me know if you need more help

Oct 17, 2007 | Kenwood eXcelon KDC-X879 CD Player

2 Answers

CD 8445 not reading CDs

Have you tried cleaning the lens with a CD? The pickup might even be bad. Check this out: That article is completely applicable to car players as well.

Aug 13, 2006 | Eclipse CD8445 CD/MP3/WMA Receiver

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