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Kenwood KRF-V8010D 5.1 looses settings

My receiver (Kenwood KRF-V8010D, 1999) looses sound setup, stored radio stations etc when it is switched off. It started with it happening only now and then but it has been persistent for at least 6 months or so now. I have the service manual and the microprocessor has an EEPROM connected to it (a Xicor x24c02), but it does not say what information the EEPROM holds. I guess it could hold these settings but in worst case the microprocessor has a bootloader reading a program from the EEPROM - therefore I do not dare replace it straight away. Has anyone else had this problem on a similar unit? Anyone who knows how the uc and memory works on this unit?

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Hi there, RikSound1. The problem is the C657 capacitor, located on the DSP PCB. It's a 0.047 farad capacitor, 5.5V. You can either replace it yourself, or just hand the info out at your local repair centre ! It will fix the problem for sure, i have fixed that problem already. Thanks, cheebster.

Posted on Jul 10, 2007

  • 1 Answer

SOURCE: Harman Kardon AVR 7000 loosing memory

This is what's in the AVR7000 service manual:

Subject: Backup Memory on AVR/DPR/HK series receivers.
In the event of the complaint: “the receiver is losing its memory (any programmed system settings)
when the unit is turned off, or after the unit is unplugged (briefly*)”:

Check and replace:
Model: AVR7000
Designator: C730
Location: Front PCB
Description: 0.047 Farad 5.5v capacitor
Part number: # P10790-ND or # J3432147324X

I'm having the same problem and this is how far i got so far. I don't kwow how to get and replace this part.

Posted on Nov 16, 2008

  • 4234 Answers

SOURCE: my kenwood krf-v4060d reciever on/off switch is faulty.

The problem is not likely to be the switch itself. The unit is rpobably going into "protect" mode because of a problem internally. Try removing all the cables and try to turn on the unit. If the behavior remains the same, the output section requires repair. The most common failure is the output transistors. Expect a parts cost in the $40-$60 range.


Posted on Dec 09, 2009

  • 349 Answers

SOURCE: The receiver goes into standby mode every 3-5

Congratulations Wilhelm, not for finding out the possible cause of your equipment problem, but by acknowledging that your observation is not sufficient to qualify you to just plow in and undertake the repairs.
You MAY have found the exact fault, but then again you may only have found PART of the cause of failure. Note that ALL COMPONENTS in your equipment may be of different original date of manufacture. Just because they are in YOUR equipment does not mean they are all the same age. One thing is possible is that other capacitors have aged detrimentally also, but not to the point where they show it physically. A good Technician can do a check way beyond that of a visual check such as you have done. Not only that.....they will check in ways to give you to be more confident that just replacing those obvious parts will not obviate short term failure yet again.

Posted on Oct 30, 2011

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I have a kenwood krf-x7775d receiver , but the problem is when i switch off the system or even put it on standby, when i turned it on again there will no sounds comes out from the speaker . What happens is...

try they claim to have driver upgrades for this system. you should have mentioned that this system is a home audio/video thx setup. makes a big difference- at least it did back in the day! b&w, change the channel! adjust the rabbit ears! the horizontal hold\'s screwing up again! think a tube just blew! etc.!!

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I have and older unit a pioneer VSX 3800, how do you program the radio channels, is there a manuel for these unit i can get sent to myself


You have a digital display pioneer receiver and you would like to know how to store radio stations.
  • first tune your radio to your selected radio station
  • next see if the receiver has a button marked memory, and it should have buttons marked 1 2 3 4 5 6 etc
  • After you have tuned in to your selected radio station, if it has a button marked memory,
  • Press the memory button, then press and hold 1 for a few seconds and that should store your selected radio station to preset 1
  • Next, tune in to another radio station and store it by pressing memory then 2 and that should store it in location 2.

  • If your Receiver doesn't have a button labelled memory, and simply has the store 1-6 etc buttons then ,
  • Tune in to your radio station , then press and hold 1 for a few seconds, it will probably flash a few times until its stored in that location 1

  • Next, tune in to another radio station, then press and hold 2 and that should store it in location 2.
  • repeat.

I hope this helps you.
If so please leave a vote or comment.

Have a great day

Jul 18, 2011 | Pioneer Audio & Video Receivers

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Hi, my speakers are starting to sound a bit weird and i think its cause of pplaying around with the equalizers and settings on the Kenwood Amplifier, am just wondering if there is a reset button to restore...

Why guess? Get the manual out and actually look at the settings to see if they're out in space somewhere. If you don't try to understand what went wrong you will repeat it.

Register and download the manual for free at

Page 33 if you want the shortcut to factory settings.

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Hey,i have a problem with krf5100,when i do speaker custom setup,my RB and LB wont work,they even dont appear to display like L and R .whats the problem?

First of all, the KRF-V510 doesn't support direct powering of the Surround back but it does have a Pre Out to drive externally amplifed Surround back speaker(s).

The indicator for BS on the front panel is NOT an indication of speaker presence. It IS an indication of the INPUT presence of that channel.

During setup you will only see RB or LB ...

Page 17: IF you have something other than OFF set for Surrounds....
Page 17, step 9: AND you select something other than OFF if you have Surround back Speakers attached to the speaker connectors...

.. and complete the rest of the setup properly. You should HEAR the Test Tones on all speakers. If the Surround Back is inaudible you would need to investigate the external amp/speaker combination you're using.

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