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Lightning spike-dead sets

(1)2003 32" JVC TV & (1)2004 32" JVC TV, line fuses not blown, bridge rects and H.O.T. are ok. Possible power supply relay open? Or maybe control microprocessor problems? Or standby circuit problem?

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Re: Lightning spike-dead sets

If it is relay problem you can make it direct just to check.check power supply output. as you say that eht ok than it due to stand by section of system control mcrpssr.

Posted on Sep 13, 2007

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our tv set need to be serviced. Here are some tips:
1. Open main fuse. The fuse is clean but interrupted. You can try replacing it with one o the same value.
2. Fuse Blown or blackened. Short in the rectifier bridge or in the switching transistor. Out of the power supply: supply line rectifier (100/150V) shorted.


Sep 29, 2013 | Standard (CRT) Televisions

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Wont come on house was struck by lightning now everything comes on but the tv

Open the television and follow the power cord to the main power supply board the fuse will be near this cords contact plug check for blown 5amp fuse, if fuse is not blown then power supply took a shock and needs repair.

Aug 18, 2010 | JVC AV-36D201 36" TV

1 Answer

NO POWER EVERY THING CHECKS OKEY The switcher transistor was shorted also the bridge rect. A small resistor was open next to the switcher. H.O.T. okey .I replaced all of these and the tv is still dead....

switch mode power supply are very finicky check the opto coupler isolator of proper operation, also is there a non polarized capacitor at the high or hot side of the power supply, if so replace it, this can be the cause of the fault to begin with, usually around .47 mfd to 4.7, non polarized.

Good luck

Jan 28, 2010 | Sanyo DS24205 24" TV

2 Answers

No power

unplug the unit for 24 hours and try it again. if the unit doesnt come on at all, even after that, then the internal fuse is blown, or a power spike / surge has friend part of the internal power supply. you'll have the go through the warranty process of the manufacturer, or find a local tv repair shop.

Sep 24, 2009 | Daewoo DTQ-27S5FC 27" TV

2 Answers

Completely dead, no power. Is there a power-reset button?


Jul 09, 2009 | Philips TP2785C 27" TV

2 Answers

My Philips 20' TV Dead condition

If you still haven't thrown the set away . . . The ticking noise can come from different sources; either a relay that is tripping so the set doesn't burn your house down, or the horizontal output transistor is shorted shutting the set down, or there are failed components in the power supply.
I'm not sure which 'line transformer' you suspect but it isn't a likely place to look for this problem.   

Sep 09, 2008 | Philips 20PT6441 20" TV

1 Answer

No picture, sound and/or stanby indicator light...dead!

Loss of low voltage supply has happened. This regulates the ability of the set to sense the remote as well as the front panel switches. Could be anything from open T1 secondary to a regulation problem; i.e. excess drop from defective component....accordianman

Oct 20, 2007 | Sony KV-32V16 TV

1 Answer

Orion FTDV 2004 Dead Set

Question, when I clicked on this I clicked on a problem for a Sony KV27S10 but your text say's Orion, is it a Sony or a Orion?

Aug 18, 2007 | Sony KV-27S10 27" TV

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TV Doesn't Work

Probably just a blown fuse. You can go to and download Photofact #4918 for this set to get the schematic and troubleshooting tips for $20. Since the relay is not picking up, the fault is probably in the standby power supply and thus you would not be getting any power to the rectifier bridge to begin with. I do not see to many Sanyos and therefore my tech library on that brand is limited and I can't provide more spscific advice. Later!

Aug 24, 2006 | Sanyo DS27930 27" TV

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