Question about Sharp AQUOS LC-52LE830U 52" LED TV 1920x1080, 120Hz, HDTV, LED Backlight

1 Answer

My SHARP AQUOS LC-52LE830U won't turn on. Wife says she heard a sizzle and it went off.

Have unplugged it for a minute and plugged it back in, and I have checked the power supply as well as the cable connections.

Posted by Steven R Martin on

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1 Answer

Paul Katynski

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  • Master
  • 408 Answers

It usually isn't good if she heard a sizzle.

Posted on Aug 21, 2019

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5 Related Answers

highspeedsan

Randy McComas

  • 61 Answers

SOURCE: sharp aquos lc-52se94u green screen

If it it new, take it back. The product is not working properly.

Posted on Apr 30, 2009

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ginko

Ginko

  • 19396 Answers

SOURCE: LC-37AF3X Sharp Aquos KCD TV

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

Posted on May 05, 2009

Jim Krause

  • 1779 Answers

SOURCE: power supply bad on Sharp Aquos LC - bad board - schematic to ID?

Buy the green light going on means Standby is ok. Next, would be to locate the plug coming from the main board to the power supply and find the post that says PO which means power on. With your meter on that post, press the power button as see if the reading goes High, if it does then the main board is able to turn on the power supply. Next, find the plug on the power supply that goes to the inverter( the long board on the side) remove it and see if you have 24 volts coming out of the power supply when you press the power. If you do, then the inverter board is bad, if you don't have 24 v, then the power supply is bad. There are NO diagrams available for these set other than a flow chart if you can find one. A regular svc tech does'nt need a manual for these anyway.

Let me know how you do Kathy ?

Posted on May 17, 2009

Anonymous

  • 1077 Answers

SOURCE: sharp lc-22sv6u won,t power on. no green light.

Sound like the TV is in protection mode. This happens when a part goes bad inside. the TV turns OFF to protect the other parts from being damaged.
Most commonly it's a power supply related issue. A bad capacitor or transformer on the power supply board is to blame.
For a do-it-yourself fixer with electronic experience, a Service Manual is the best for trouble shooting the problem down to the bad part. Normally, you can find it over the internet for less than $20.

Posted on Jul 31, 2009

Anonymous

  • 308 Answers

SOURCE: If my Sharp Aquos 37in LC-40C37U tv needs to be

Blinking light is an error code. Count the blinks before they repeat. Check your manual in the troubleshooting section. If you can't find it, contact a Sharp service center or try and get a service manual. Reset info is also in the user manual but you can't do it if your set doesn't power up. Are you sure about the power board?

Posted on Apr 30, 2010

Testimonial: "Thank you. I will get another board."

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First step: reset your cable box by unplugging of the power supply or unplug power cord of the box. If that's an old fashion big gray one or black one with additional power outlet for TV set, there is a power cord goes into. Unplug it, then plug it back in within 1 minute. not the TV itself, but the cable box's power cord. This will reset it. If you have more modern one or small one for non HD TVs, they have external power adapter, which plugs into those boxes.
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Its just the issue with the Power supply.

You can check

1. Try some other wall outlet

2. You will see that there is a power supply of black color, the plug from wall outlet is coming to that box and then from there its going to the printer, so check whether the wires are plugged in well in the power supply.

If everything is well then we can try power drain

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If that also did not help then, try to get some power supply from your neighbor or friend make sure its of PSC 1200 series and try that.

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Check your power supply cables Your power supply cables may not be fully secured. Let's unplug and reconnect your power supply
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    Reconnect the power cord to the console. Then plug the power cord back into the wall outlet and the power supply unit
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  3. Turn your console back on.

Check the light on the power supply. If this solution worked, your power supply light will be green

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