Question about Sharp Aquos LC-PD50U 50 in. Plasma Television

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Sharp LC-PD50U No power

I am writing about a 50 inch Sharp plasma television from around the year 2000.  Generally there is a red light glowing even when the television is off but this is no longer the case and it will not turn on.  My first thought is maybe it's the power supply but I really have no idea.  This is a nice, yet older tv and I'm wondering if it's worth fixing; I think a repair center might cost anywhere from $150 to $300 in labor plus parts maybe around $500 all said and done?

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Re: Sharp LC-PD50U No power

I have just had this same problem. Did it tuurn out to be a power supply or the fuse?

THank you,


Posted on Aug 10, 2008

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We are trying to set up wii-through the dvr to play on Sharp LC-PD50U-unable to get it to work.

Connect the Wii directly to the TV either using the HDMI cable or the Hi def cable(5 RCA connectors) that come with the Wii. Then select the input number on the TV to get a picture .

Dec 25, 2012 | Sharp Aquos LC-PD50U 50 in. Plasma...

2 Answers


Please provide the model and make details

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

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No Power

You will have to remove the back cover to get to the fuse. Just follow the power cord/power jack and it will lead you to the fuse. The fuse will be located on the power supply board. If the fuse is blown, you could be dealing with a short circuit in the set.

Sep 10, 2012 | Sharp Aquos LC-PD50U 50 in. Plasma...

1 Answer

Wii remote hit the screen and tv picture will not work? Are the fixable?

Not likely. The screen is the most expensive part of the TV. It CAN be replaced but a new TV will probably be cheaper.

Dec 25, 2010 | Sharp Aquos LC-PD50U 50 in. Plasma...

1 Answer

Sharp flat screen no sound after moving it from downstairs to up

Try the main resets in the back by the a/v in and out jacks. If this does not work, call Sharp Customer Service and tell them that you already did the resets. There is a known problem with a heat dissipation pad for the onboard speakers and they will send a repair tech to replace the pad for free, even if you are out of warranty. At least that was the case with my LC-32D6U. My understanding is that a surround sound system would bypass the problematic part of the sound board which is why yours worked in your basement.

Mar 09, 2009 | Sharp Aquos LC-PD50U 50 in. Plasma...

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...

1 Answer

Using the TV as a computer monitor


I am assuming that you have installed the cable to the appropriate jack/connectors on the back of the TV and that of the PC.

If you are using a laptop, you would need to press on the Fn + F? keys of the laptop to cycle through the different settings such as: laptop's display only, laptop & TV displays and TV display only. The F? key would be one in your laptop designated to engaged/enable external monitor (TV). Normally, it would have a monitor icon.

Please verify that your PC's screen resolution is 1366 x 768 or lower.

If you are using a desktop, you need to engage/enable the dual/twin view in Display Properties. Additionally, the TV must be powered on first before the desktop is booted.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Apr 30, 2008 | Sharp Aquos LC-PD50U 50 in. Plasma...

1 Answer


Sharp lcd screens are very easly damaged especially the larger screens,this could be at fault even though it looks ok,try shinning a light on the screen and checking every inch,could be the internal screen that has damage hence why not powering up.
Failing that it sounds like an internal short.

Apr 20, 2008 | Flat Panel Televisions

2 Answers

No power

It could be a fuse and be aware the fuse is on the power supply. It most likely is a failed power supply.

Jan 04, 2008 | Sharp Aquos LC-PD50U 50 in. Plasma...

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