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Tv power light blinks and won't turn on - Televison & Video

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In most cases the standby light might blink with different rapidity to indicate a fault relevant to the processor. It is possible that most of these indicate that there are errors in the processing section . Since there is a possible short or leak in the circuit the output driver section can take in huge current to trip the SMPS or from advice from the micro processor. Remove the power plugs and make sure that high voltage sections are discharged of the potential stored in capacitors. Look for visible signs of leak or of busted capacitors. Look for bulged capacitors or damaged components- burnt or busted. Use a multimeter to check the continuity or shorting in components, if so detach from circuit and test . If the voltage builds up and the set power ON and then shuts up then the suspected section must be checked in detail.

The processor must have the +5 voltage to the function properly , the +B and secondary voltages also must be checked to infer the fault. Trace with caution and in running through the signal path , circuit trail.

Posted on May 28, 2011

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Posted on Jan 02, 2017

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diodeic
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SOURCE: We have a 46 inch sharp tv model number 46SB54U

Hello,

Your power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

I hope this will helpout ......

Posted on Jun 25, 2011

electrotech1
  • 1126 Answers

SOURCE: Have a 42" Tv that won't power up. Power to

The electrolytic caps need change out on the power supply or you can purchase a new remote at www.partstore.com

Posted on Sep 14, 2011

protvrepair
  • 153 Answers

SOURCE: Heard a pop , bulb blew out , replaced bulb , it

3 blinks indicates lamp door is not on or has not been reinstalled properly. This also could mean the lamp door switch has failed itself. Try removing the lamp door and putting back on, if that doesnt correct the problem then I recommend having the switch replaced.

Posted on Oct 29, 2011

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