Question about Flat Panel Televisions

1 Answer

Purchasing an internal circuit board part for a sharp LC 20S1E LCD TV

The TV's only 3 1/2 yers old.

I know what is wrong with the TV (main circuit board blown). I just need to know if I can purchase another one either directly or in-direclty from Sharp.

Your help would be greatfully appreciated...

David Leek

Posted by on

1 Answer

Re: Purchasing an internal circuit board part for a sharp...

Send me the model and serial number and i will be able to advise you

Lou Margo
Allied Electronics

Posted on Dec 24, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Is the audio amp on the main board of a sharp lcd tv

A manual for a measure of the voltage line thats goes to the audioboard and there can be used a fuseresistor a resistor to protect the audioboard if .......
SHARP LC 32M44L LC 32SBB21U LC 32SB23U LC 32SB220U SUPP Service Manual...


Oct 25, 2015 | Sharp LC-32SB23U 32 in. LCD TV

1 Answer

Sharp tv troubleshooting

Check its speaker first. If it is found OK, connect the set to any external amplifier If no sound is produced by external amplifier too, the main digital board has the fault. If there is sound by external amp, and not with TVs internal speaker, the fault is with its audio output stage circuit. If you wish to get more details, surf the following link. There are over two thousand and four hundred posts. All are related to television and other domestic electronic equipment service help. You can get a solution there. More than Nine Lakh viewers cannot be wrong.

May 06, 2013 | Sharp AQUOS LC-32D44U 32 in. LCD TV

1 Answer

Sharp LC-32SB21U 32 in. LCD TV poor audio

The main board is having issues eventually the sound will drop out altogether. Replacing the main board should solve the issue. You can get the main board from

Oct 03, 2012 | Sharp LC-32SB21U 32 in. LCD TV

1 Answer

My Sharp lc-19ad22u HDMI port went out- we thought it was the set top box but it is the TV. Can it be repaired or is it a case of the repair costing more than a new tv? The tv is only 3 years old-very...

Yes the repair will be more than the 19" LCD TV, most of the time the HDMI circuits is part of the main board which is basically the main part of the whole TV as you can see here:

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic troubleshooting guide here:
Failed TV and Monitors:
Learn about bad caps:
Capacitors kit: he can make you a set of caps.
Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Jan 18, 2011 | Sharp LC-19AD22U 26 in. LCD TV

1 Answer

Sharp LC-32D64U Liqid Crystal Television Power light on TV is flashing green. TV won't turn on. What could be wrong?

It can be in safety shutdown mode due the failed DC filter caps, shorted circuits in the backlights inverter boards, main board problem. You need to do some inspection first.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors:
Learn about bad caps:
Capacitors kit: he can make you a set of caps.
Or, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.

Dec 13, 2010 | Sharp LC-32D64U LCD TV

2 Answers

I have a Sharp LC-32D44E LCD TV. Purchased Oct 08. In July 09 when switched on, the power light showed green for about 20 seconds and then went into standby mode. Fault fixed by Sharp, and engineer stated...

The problem may be in any three things.No 1: Internal power supply.No 2: The video section.No 3: IFT (Intermediate Frequency Transformer).
Solve:Check all the section one by one and find out where the fault lies.Then repaier the faulty components.

Dec 30, 2009 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

1 Answer

Sharp lc-26dv12u about 2years old. All of a sudden

Sounds like the Main mother board is the problem. When the processor chip overheats, the programming information passing through the chip slows down. Most cases, replacing the main mother board will fix the problem.

Dec 29, 2009 | Sharp LC-26DV12U 26 in. LCD TV/DVD Combo

2 Answers

Sharp 42' LC-62C42U main circuit board needs replacement

I would recommend
Parts are at reasonable prices. Compare with the prices at and you'll see what I mean.

Aug 06, 2009 | Sharp LC-62C42U 42 in. LCD TV

2 Answers

Sharp LC-32D40U shows no video few seconds after turning it ON

Modification of the inverter unit usually takes care of this problem.

Jun 02, 2009 | Sharp LC-32D40U 32 in. HDTV LCD TV

1 Answer

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

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

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.

May 08, 2008 | Sharp Aquos LC-PD50U 50 in. Plasma...

Not finding what you are looking for?
Flat Panel Televisions Logo

Related Topics:

638 people viewed this question

Ask a Question

Usually answered in minutes!

Top Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

66444 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers


Level 3 Expert

6993 Answers

Are you a Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides