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xenon pro xa840 karaoke amplifier

Discussion in 'Troubleshooting and Repair' started by peterpan271, Feb 28, 2014.

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  1. peterpan271


    Aug 11, 2013
    need schematic diagram of xenon pro brand karaoke amplifier model xa840.

    unit do power-up but no sound. dial lights all ok. I noticed that upon power on the two DPDT relays do switched on but immediately switched off. checked already the power transistors and the pre-amp trans, all ok. suspects trouble in the other components.

    any help?
  2. davenn

    davenn Moderator

    Sep 5, 2009
    Hi there
    welcome to the forums :)

    have you googled for a schematic or service manual ?
    it's what one of us would have to do

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