Harman Kardon AVR 110 powers off randomly

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • ntehicks
    Badcaps Veteran
    • Mar 2011
    • 272
    • United States
    #1

    Harman Kardon AVR 110 powers off randomly

    I was given this stereo receiver and was told it had a problem that it would just shut off an any time. As I looked at the inside I could see that one of the caps was bulging. I have replaced that cap and all the ones on the main amp board. but still does the random shutting off. The amp from what I can tell is not overheating. When the amp powers off you can hear the relay click as if someone hit the power button on the remote or the front control.
    Attached Files
    Tags: None
    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: Harman Kardon AVR 110 powers off randomly

      Originally posted by ntehicks
      The amp from what I can tell is not overheating.
      One possiblility is that there are bad solder joints on the board.

      HK receivers, from what I read, tend to run a bit hotter than others.
      --- begin sig file ---

      If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

      We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

      Please do not post inline and offsite as they slow down the loading of pages.

      --- end sig file ---

        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA
          #3
          Re: Harman Kardon AVR 110 powers off randomly

          Here is the service manual:
          Never stop learning
          Basic LCD TV and Monitor troubleshooting guides.
          http://www.badcaps.net/forum/showthr...956#post305956

          Voltage Regulator (LDO) testing:
          http://www.badcaps.net/forum/showthr...999#post300999

          Inverter testing using old CFL:
          http://www.badcaps.net/forum/showthr...er+testing+cfl

          Tear down pictures : Hit the ">" Show Albums and stories" on the left side
          http://s807.photobucket.com/user/budm/library/

          TV Factory reset codes listing:
          http://www.badcaps.net/forum/showthread.php?t=24809

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: Harman Kardon AVR 110 powers off randomly

              And this is sold as a premium product? I would feel ripped off.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

                Comment

                Previous template Next

                Related Topics

                Collapse
                • PowellSkier
                  Harman/Kardon AVR 645 returning to stand-by after a few seconds.
                  by PowellSkier
                  A Harman/Kardon AVR 645 repair has been a hobby of mine for the past several years. My latest attempt involved the purchase of a DOA unit for part swapping and testing. The original AVR would power up then shut down after a few seconds. I completely tore down both units, found a couple of bad components and reassembled one of them. Same issue, no speakers connected. After extensive research I found a repair document from Harman/Kardon that explains the protection circuit in fantastic detail and provides specific test points for each fault (power, DC detection, overload & power) and the voltage...
                  06-17-2024, 11:43 AM
                • funky2x
                  Harman kardon onyx studio 7 Smd code
                  by funky2x
                  Cant find what smd code Y0DVA.
                  sitting in Harman kardon onyx studio 7. Appreciate any help.
                  1 Photo
                  05-29-2025, 03:44 PM
                • PowellSkier
                  Cement resistor swap in Harman Kardon AVR
                  by PowellSkier
                  Would I be able to swap a 0.27 Ohm Kx2 5W resistor for a 0.22 Ohm Jx2 5W resistor in a Harman/Kardon AVR? Cement type.
                  06-04-2024, 06:41 PM
                • falafinasul
                  Harman Kardon AVR 3700 Fonte queimada
                  by falafinasul
                  Harman Kardon AVR 3700 burned, it does not turn on and I have already changed the fuse and when turned on it burns again. It must be shorted.

                  I made a new Diagnostic and verified that the input source is shorted.

                  Someone help
                  02-24-2023, 05:51 PM
                • BlackScreen_22
                  Harman Kardon sub TS11 (ds15 amplifer) blows fuse and mosfets
                  by BlackScreen_22
                  Hi, I'll start by saying that I'm not an expert and I've reached a point where I don't know what to try/do anymore...
                  Starting from the beginning: I opened this subwoofer for the first time with a very strong smell of burnt electrical components, I realize that on the amplifier board there is a hole between V+ OUT and GND about the size of a finger, the damaged components were the shorted mosfets, two damaged zener diodes and two capacitors. I bought everything, I fixed the hole by cutting the pcb and putting a piece of a perforated board.
                  I had no problems connecting mosfets and capacitors,...
                  08-27-2024, 12:46 PM
                • Loading...
                • No more items.
                Working...