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I have a sharp television 14 inch. the problem is when i switch on the primary power switch the led turns red then pressing the secondary power the the led turns green then just about a second a click

I have a sharp television 14 inch. the problem is when i switch on the primary power switch the led turns red then pressing the secondary power the the led turns green then just about a second a clicking sound from the relays and the led turns back to red.

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  • Sharp Master
  • 1,253 Answers

He's dead, Jim. Probably a bad capacitor or diode somewhere. If you can't repair electronics, it's probably not worth the repair bill.

Posted on Nov 26, 2014

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  • Expert
  • 418 Answers

It is self-shutting down Something electrically bad inside. Could be anything. Usually some type of overload on power supply. Need training to troubleshoot.

Posted on Nov 23, 2014

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RCA 32V434T likely has a bad flyback--#271996. RCA 32F531T flyback no longer available,#262343 Fix one,dispose of other.

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charcois
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SOURCE: problem with pioneer elite pro-99

your tv's hardware might got the problem. this should fix with an expert technician that they have a tools for fixing this problem. if repairing will cost you alot then i suggest that you have to buy a new tv insted of repairing your old tv. hope that helps!


CHARCOIS

Posted on Aug 21, 2008

SOURCE: Power

same problem here

Posted on Sep 25, 2008

  • 108 Answers

SOURCE: sony tv wont turn on, standby light just flashes

check for an open resistor on the power supply, it is actually a fusible resistor, (white) if open, then check the converter, some sets have two separate and some have it as one. it will be on a heat sink on the power supply. if shorted then check for a shorted horizontal output transistor and repair cold solder joints on the horizintal drive transformer which is the real cause of this problem

Posted on Jan 08, 2009

hbsurfdawg
  • 95 Answers

SOURCE: Won't turn on - relay clicks, power supply squeals, relay clicks, etc,

The television has a protection circuit. Sound like you know something about electronics so that is cool.

I suspect the HOT or High Voltage Transformer. If you want to operate on it, they typically will short externally from moisture or plastic high voltage breakdown. The TV starts, shorts as it cannot come to full high voltage, then shuts down. If your brave, you can unsolder the HOT which is the part that is on the main board or that comes from the top of the picture tube wire into a dark or spaceship type object.look underneath, sometimes they short underneath and you can scrap the carbon and get it to at least start up and work. Do not leave this as a fix as it can be a fire hazard.


The HOT is the most common. They are around 20-60 bucks. 34" TV. I am assuming this one without looking it up it is NOT a flat screen, as most do not squeal like that nor do they have to de-gausse like the old ones. I just looked it up and yes it is not a flat screen. Old school, so that is more thank likely the problem.

Posted on Mar 02, 2009

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It means that one of the secondary output voltages are short. You ll need to check every output voltage at the smps transformer. If the set is producing a hissing sound, then either the 115 v zeener is faculty or the horizontal output transistor is faulty

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Voltages sometime increase/decrease during power outages. This mainly afftects the power supply of a lot of electronics equipment.
1. Check the fuse.
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3. Check secondary (cold) side once you isolate the primary side to be ok.
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