Question about Vizio VP322 32 in. Plasma TV

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Vizio VU42LFHDTV10A will not turn on. Power board fuse is sautered into circuit board. Checked out good, but do I need to remove it to check if its blown? Capacitors look good. No burn marks on sauter side of board. Any ideas?

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6ya6ya
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Posted on Jan 02, 2017

SOURCE: I have a Vizio VO74L TV almost 3 years old. Last

If the capacitors have blown then it would not cost much to change them all, Capacitors in LCD tv's are a common faulty due to poor chemical compounds used to make them and heat exhaustion, especially with the tvs that have the same chassis. Try changing them all and see if it makes any difference. Vizio or other manufacturers wont say anything as its not under warranty and they dont like people looking inside their tvs :).

Posted on Mar 22, 2011

  • 155 Answers

SOURCE: vizio vp422hdtv10a plasma tv will not turn on.

Good call checking the fuses first. Next I would try replacing the power-board. If you have a volt-meter you can test it first, but BE CAREFUL as it would require having the TV plugged in.
The power-board is the one with the most large components on it, like transformers (coils of wire) and capacitors (tin-can looking things). The board itself will be much smaller then the main board, and may be the first place the power cord leads to.
The good news is that this is probably the cheapest component in a TV to replace (besides a fuse that is). Check online.

Posted on Mar 19, 2010

budmrtn
  • 11361 Answers

SOURCE: Got sound but no picture

Check to make sure you do have 24vdc feeding the inverter board, there are surface mounted fuses on the inverter bd.
Parts: http://www.shopjimmy.com/catalogsearch/result/?q=Vizio+GV42L+

http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Posted on May 28, 2010

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I should suspect the fuse or circuit breaker that is supposed to power the oven if turned off.
It could be nothing more than a power surge from a lightning strike somewhere.
Find the electric box and check it out.
If the fuse or circuit breakers panel is good, remove the oven and check for current at the wiring that goes from the oven to the fuse/circuit breaker box.
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God bless your efforts.

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i am having the same problem and my power light wont even turn on so i think it might be tht power fuse. Is tht what was wrong with urs?

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Vizio vp422hdtv10a plasma tv will not turn on. Made kind of a real loud click and shut off and will not turn on again. Removed back, fuses don't appear to be blown. Circuit boards don't appear to have any...


Good call checking the fuses first. Next I would try replacing the power-board. If you have a volt-meter you can test it first, but BE CAREFUL as it would require having the TV plugged in.
The power-board is the one with the most large components on it, like transformers (coils of wire) and capacitors (tin-can looking things). The board itself will be much smaller then the main board, and may be the first place the power cord leads to.
The good news is that this is probably the cheapest component in a TV to replace (besides a fuse that is). Check online.

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It sounds like the 5vdc standby circuit is still working, that is why the main fuse is still good but you may have bad 24vdc power supply, look real close again for blown transistors or IC on the power supply board, but it can also be the backlight inverter circuit boards that blew up also. Look here to see what good parts look like: http://www.shopjimmy.com/catalogsearch/result/?q=Vizio+VX37L+
Please post back what you find.

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2 Answers

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A dead condition usually indicates one of the following: Open fuse (often internal, and usually pops due to other circuit defects). Short (overload condition) in the circuitry. Failure elsewhere in the circuitry. Most modern electronics have some logic circuitry, and if there is a section of the circuit not working, the logic circuit keeps the set from coming on at all.

First, if your power cord plugs into the set, check that it is properly connected. If you can get into the internals, find the fuse, check it, replace with an exact or near exact size.

If problems are beyond the simple, technical expertise will be required to nail down and fix the problem.

Nov 28, 2007 | Televison & Video

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