Question about Sharp Aquos Televison & Video

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I have a Sharp Aquos model LC-52D6-4U that the screen has gone blank. I changed out the power board and it still did no work. any ohter suggestions?

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

SOURCE: LC-37D62U Sharp Aquos HDTV Settings

lost sound on Sharp Aquos 37LCD62U

Posted on Jan 25, 2008

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Anonymous

  • 2 Answers

SOURCE: Sharp Aquos LC 37HV4U - problems with AVC

I have a fully functioning lc37hv4u box & cable that I will sell for 200$ my lcd got cracked. let me know psxpirate25@hotmail.com

Posted on Aug 01, 2008

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

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

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1 Answer

Sharp Aquos LCD power on but no picture and no sound


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. 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/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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Just 18 month old TV and out of warranty.

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I need Board for model Sharp Aquos LC-15S1E 15 in., so if you still have it contact me. My e-mail: ismedin_grahic@hotmail.com

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