Question about Zoom H4 Handy Recorder
If it at least open to lit the display ..than you should look for a reset button ...that may be hidden in a hole and need to be pressed with a sharp object ..if it has one ...power it up ..and reset it ..after that it should work , if it doesn't have a reset button ...remove any power source on it ..and leave it be for a few hours...and see if ti is reset after that ..In the last case ..if you seam to have a power response at least ...download and reinstall the firmware form the support site..
But ..from what I sow you described..it seam more like a power issue ..and it doesn't receive power ...and in this case you have to open it up ..and check the connections ..or the motherboard is fried..
Posted on Jan 07, 2011
I couldn't find any report of this on the net but it sounds like a broken power switch, or some power issue. If it's new or under warranty, have it serviced or replaced, as they often do these days.
If it's out of warranty, you will have to try to determine the problem, or have it serviced. Some switch contacts can be fixed, but some can't, since they're built into the circuit boards, and require the whole board to be replaced.
Refer to your literature for manufacturer support, or go here http://www.zoom.co.jp/english/products/h4/ and see if they can help, reasonably. Otherwise, you can try to fix it yourself. Power charging jacks can get oxidized, or sprung, and you can clean them with some electrical contact cleaner, or respring them, so to speak. Sometimes you can clean the switch contacts also, but not always.
Good luck, and hope this helps.
Posted on Dec 30, 2010
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Posted on Jan 02, 2017
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This is only the first of many things you may need to do to determine the fault. But it is a process for determining the exact cause.
Make sure the ac adapter is correctly plugged into the notebook and into the power cord.
everything is plugged in correctly and it still will not power on,
follow these steps to complete a 'power reset' of the notebook.
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