Question about Sharp Aquos LC37D44U 37 in. LCD HDTV

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LC-47sb57ut Has power to it but wont come on fuses are good in the board

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6ya6ya
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Posted on Jan 02, 2017

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caroldon
  • 17130 Answers

SOURCE: Tv sometimes will not power

Possible that there are dry soldering joints in the TV main board or in the processor section. It will be good to remove and have a good visual check to determine , reconnect all connectors , re solder all the suspected dry/poor joints in the board.

Please find some tips for such related faults. TV malfunction

While you plug and unplug the board is being reset, so check the processor section, solder the microprocessor IC.

Posted on Nov 25, 2010

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romsky79
  • 822 Answers

SOURCE: Sharp LC-26SB24U Im getting a white screen. I

check all capacitors on the circuit board.

Posted on Feb 08, 2011

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1 Answer

Wont turn on


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Sep 10, 2014 | Sharp LC-19SB25U 19 in. LCD HDTV

1 Answer

Won't power on


Have you checked all fuses (where fitted)?

Feb 18, 2014 | Sharp LC-47SB57UT 47" 1080p LCD TV - 16:9...

1 Answer

My sharp lc-20b6u is dead, wont come on at all, could the power cord be shot? tried different outlets and no luck, nothing at all Thanks for your help


hi there, yes sometimes cut or wounded power cord actually result to no power at all. But if it still good try to trace down busted fuse. if fuse also good well it could be a defective power supply, defective power mosfet, or bulgy/leaky capacitors. if this is th e problem now, its better to let a service technician to be of assistant. well good day, hope it helps. Please rate and vote

Mar 30, 2011 | Sharp LC-20B6U-S 20 in. LCD Television

1 Answer

Hi my sharp aquos lc-30hv4u keep's blowing the main ac fuse 3.15amp 250v. i looked at the main power board it looks good. is there something i can look for? thanks for any help.


On the power board look at the electrolytic capacitors . The top of them should be flat. If they are domed on top or have leaked out the bottom then they need to be replaced.

Mar 13, 2011 | Sharp Aquos LC-30HV4U 30 in. LCD HDTV

2 Answers

My LC-37GA4X wont turn on and a red light keeps blinking, this all happened after a power outage. What could be the problem?


Ur power supply board is shorted and dead.Replaced the power supply board will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Apr 27, 2010 | Sharp Aquos LC-37G4U 37 in. HD-Ready LCD...

1 Answer

Wont turn on. is there a fuse or something inside


The unit has fuses but you will probably not find any bad ones. I would check the power supply for problems. If you unhook all but the control board it should produce all it's voltages which are usually marked by the connectors. If voltages are good the problem is in one of the boards which are unhooked. It would need replaced. If the voltages are not there the power supply board needs replaced. Let me know how you make out.

hardrocko

Jan 31, 2010 | Sharp Aquos LC-32G4U 32 in. HD-Ready LCD...

1 Answer

Sharp Aquos LC-42D62U Completely Without Power


If you have no power at all , the then problem concern the power cord or the power supply board.

You need to test the power cable first, and eventually test and replace the power board, the job can be done by any local technician.

Here the replacement power board.

Here all parts for your set: LC-42D62U.

Mar 06, 2009 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

1 Answer

I have a sharp 20" (Model LC-20SH1U) That wont power on


PROBABLE POWER SUPPLY OR CONTROL BOARD PROBLEM. TAKE TO AUTHORIZED SHARP SERVICER TO IDENTIFY WHICH BOARD. SOME POWER SUPPLY BOARDS CAN BE TROUBLE SHOT TO COMPONENT LEVEL.

Jan 30, 2009 | Sharp LC-20SH3U 20 in. EDTV-Ready LCD...

1 Answer

No power to tv after unplugging and replugging


either the fuse is burnt out inside or the the problem is the power supply board. You can remove the back cover to see if the fuse is good or not.

Jan 17, 2009 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

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