Question about Car Audio & Video

Open Question

Where is the audio ic at on a jenson Kdc 9640 car stereo

Posted by on

5 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 624 Answers

SOURCE: Pioneer car stereo output Ic's

In most cases the problem is the electronic volume IC, ref # IC151 and part number PLM003AM (in the DEH-1600). It is a different part number and ref # in other models.

It is not always this part that causes the failure, sometimes it can be the muting transistor, a voltage regulator or even the micro on more rare occasions. It will require some troubleshooting to figure out exactly what part it needs. You will need to have an O-scope to trace down the audio signal and follow it from one pin to another. You also need a multimeter to check a few voltages in the radio. All of this must be done on a test bench with the radio powered on with a power supply. If you do not have these tools, you will not be able to figure it out for certain, you would only be taking a stab in the dark. That can get rather frustrating and even expensive buying parts that do not fix the problem.

The electronic volume IC is a flat pack surface mounted component and requires the very best soldering skills to be able to replace. It is very easy to do damage to the circuit board that can not be repaired if it is not done perfectly. If you have not replaced these type of components before, you should not even attempt this repair.

If you would like the service manual I can sell you the PDF format of it for $10. I also have the service manuals for most Pioneer products as well as Kenwoods, JVC, Panasonic, Denon, Marantz, Clarion, and more. Let me know if you would like to get it. The service manual is very helpful in repairing electronics. It contains the schematics and parts list which is vital to make sure you get the right parts and to be able to trace down any signals and to know what parts are doing wha, and to figuring out if the voltages are correct.

I hope this helps,


I hope this helps

Posted on Nov 18, 2008

  • 1 Answer

SOURCE: KDC-9640 wont play


Posted on Feb 12, 2010

  • 4844 Answers

SOURCE: i need unlock code for my kdc-mp2035 kenwood stereo

Unfortunately Kenwood codes are only available from the Main Dealer or by using a Radio Decoding Service who will connect a laptop to read the working code inside your radio`s memory chip (EEPROM)

Posted on Jul 06, 2010

  • 2226 Answers

SOURCE: I have a Kenwood car

The output ic is a TDA7560A. You can get it at

Posted on Mar 24, 2011

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My stereo have a problem when i am opening it the screen appear protect how an i solve ghe problem of that stereo

First, if you can, check your speakers and speaker wires for shorts and/or grounds. If they check out fine, press the reset switch, it should be a small indentation about the size of a pencil tip and will not be marked. If that doesn't work, you may have a bad output ic.

Oct 08, 2011 | Kenwood KDC-MP235 CD Player

1 Answer

All of the sudden my stereo locked up and says protect can't get it to turn off.

try checking your speaker wires and speakers for shorts or grounds. you may also have a bad output ic inside of the deck itself.

Jan 17, 2011 | Kenwood Kdc-mp345u Car CD / USB Player

1 Answer

I was installing it and it burned can it be fixed

Not really.It probably fried the either IC board or IVR.It would be much cheaper to buy another one and pay professional to install it.

Jan 05, 2010 | Kenwood KDC-138 FM / AM Receiver

2 Answers

On my kenwood kdc mp438u i tried everything it said to do but it keep saying protect

Could be a short circuit on your speaker output, try disconnecting all 4 speaker wires and then power up. Otherwise its the audio amplifier circuit that needs to be replaced ( audio IC )

Sep 27, 2009 | Kenwood KDC-MP438U Car CD/ MP3 Player

1 Answer

Static in speakers when treb in turned up and volume above 50%

the output ic is cooked. it is upc1130h2 or similar.
these chips are floating not ground one speaker lead.
outputs are typically 7 dollars.
it is mounted to the aluminum heatsink need to desolder and resolder the pins,and then solder in the new one.
special heat sink compound has to be applied,or it will go very quick

May 09, 2009 | Audio Players & Recorders

1 Answer

How to get a display ''protect off of my car audio?

one of your speaker wires to the internal amp is shorted. turn power off and make sure they are not touching metal or each other and then hit reset again. if this doesn't help your power ic may be fried inside the stereo or a speaker is shorted.

Nov 29, 2008 | Kenwood KDC-MP435U CD Player

1 Answer

Kenwood car stereo

are you aware that when you short circut any audio output of any audio it can lead do destruction of th e concerned audio driver( ic or output transistors) try and check the output ic and the concerned area.

Sep 11, 2008 | Car Audio & Video

1 Answer

KDC-9640 wont play


Apr 28, 2008 | Jensen KDC-9640

Not finding what you are looking for?
Car Audio & Video Logo

Related Topics:

32 people viewed this question

Ask a Question

Usually answered in minutes!

Top Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4844 Answers


Level 3 Expert

75797 Answers

The Knight
The Knight

Level 3 Expert

74106 Answers

Are you a Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides