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Testing a Zoom H4 - What Can I test next?

Discussion in 'Troubleshooting and Repair' started by ah970, Jun 16, 2009.

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  1. ah970

    ah970

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    Jun 16, 2009
    I have a Zoom H4 that will not turn on. I have tested all three power sources(battery,ac/dc converter, and USB) with no success. With a multi-meter I have found power on one side of the on/off switch. I can put the switch in the "ON" position and I have power to the other side of the switch.

    At this point do not know what to test next.
    I have no diagram.
    How can I test the display panel?
    How can I locate positive and negitive in other locations on the circuit board?
    Is there a way to test the (not sure of the name) computer chip?

    I have no electronics background, but do have a mechanical aptitude and have wired three garage/ sheds.

    Any suggestions would be greatly appreciated.
     
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