SOURCE: Audiovox LCD FPE3206 problems
Hi, All.
I ordered a new power supply module on ebay. Cost about 106.00 delivered. Came in a few days. I replaced the unit, bunch of screws, all wires were cable plugins, no problems at all.
After reassembly, it worked. What can I say? Sometimes ya just get lucky.
tom
SOURCE: Audiovox FPE3000 - no pix, has sound.
Either the back light (a fluorescent) has failed or the inverter that furnishes high voltage for the tube.
I'm pasting my suggested procedure below-
If it is affecting video only, the display's fluorescent
back light or the power supply for it (inverter) is probably at fault and without some
technical background and a couple of test instruments, you will not be able to
do the repair yourself.
What you can do though is; unplug the set, let it
stand overnight or at least several hours, remove the back panel and look for a
smaller separate board with some larger components on it; it will have ferrite
core transformer(s) on it and some medium-size capacitors which are cylindrical
and mounted vertically to the board.
Before touching anything inside, especially on either
board, allow several hours to be safe since the larger capacitors in the main
power supply can hold a painful voltage charge for some hours.
The
section most likely to fail and cause your problem will be one that you see
associated more with the display than the incoming AC line; the latter is the
main power supply and its failure would result in no sound or video.
If you see signs of overheating such as discoloration of
the board material, it may not be repairable but if you can find a part number
on the board, you might be able to buy the power supply from the manufacturer
and install it yourself.
They are
typically connected with non-interchangeable connectors.
If there are no signs of heat damage to the board, there
may be companies offering to repair it as a subassembly instead of repairing
the whole set which could be much more expensive.
If you choose to replace or have it done, the power supply still may not be at fault since a
failure of the fluorescent, while likely to be less common, is the second
possibility.
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