Question about Denon AVR-4308CI Receiver

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No surround back channel - damage during transport

Have a Denon AVR 4308 Receiver - updated to Version 4308A. Bought the receiver three weeks ago and it has transported in a bag by plane where it has been dropped. The back panel is slightly bend where the speakers are connected. All is working except the surround channel back right. As I am living in a remote destination sending it back to the dealer or Denon is not an option. Any idea how to check what is broken and eventually how to fix it? Measured already with a voltmeter - no output at that channel. All other channels are working fine despite being pressed in around 4mm more.

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  • matthias904 May 19, 2009

    Thanks for your feedback pinout. Will try to take it apart and check the board. I have previous experience in electronics but photos of the inside would help so I know what to expect. Any idea where to find those?

  • matthias904 May 19, 2009

    Thanks! As far as I can see the plastic strip has to be broken??? Is that a warranty seal as it is fitted without screws? Thanks so much for your valuable assistance!!!

  • matthias904 May 19, 2009

    Thanks! As far as I can see the plastic strip has to be broken??? Is that a warranty seal as it is fitted without screws? Thanks so much for your valuable assistance!!!

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  • 163 Answers

I think your receiver has cracked main (amplifier) board close to surround back channel terminals. Need to take apart the receiver remove the board, inspect it and resolder cracked traces. Unfortunately it is not so easy to remove that board and probably you need to bring it to a repair shop.

Posted on May 19, 2009

  • EBC ELECTRONICS May 19, 2009

    Have no picture but here is an instruction.
    Unscrew, disconnect and remove front panel.
    Remove 10 screws at binding post terminals located on back panel under plastic strip.
    Remove screws of main board and screws of heatsink. detach connectors from main board. Carefully pull main board with heatsink toward front of the unit. You will need to cut several plastic clampers keeping the wires. Good luck.


  • EBC ELECTRONICS May 19, 2009

    nop, do not brake it. it has a screw on the right side end or a plastic pin, remove it.

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