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

1 Answer

LC-37AF3X Sharp Aquos KCD TV

Red Power and sleep lights flashing together and can't get TV on Sharp Aquos LCD TV

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  • 8 more comments 
  • chappo May 08, 2008

    Red Power and sleep lights flashing together and can't turn on TV - SHARP Aquos LC-37AF3X

  • Luthra Arun Jun 07, 2008

    power on the tv the picture comes in for couple of seconds and then the red power lights starts blinking and no picture. switch off from main switch on same thing happens

  • Luthra Arun Jun 07, 2008

    all off a sudden the tv stopped and red power light started blinking. if you power off from the main and switch on picture comes for a couple of seconds and goes and again red light blinking

  • Anonymous Jul 19, 2008

    Sharp Aquos LC 45GD1E power light keeps flashing red, no tv at at all, have tried switching off at mains, but no difference.

  • Anonymous Aug 18, 2008

    When you turn on the tv you hear the sound and see the tv, but after 2 seconds the screen goes black and the red power led flashes you cant turn on or off except for turning off power at wall

  • Anonymous Nov 19, 2008

    My brand new sharp aquos just stop working 2 days ago, the power and opc green ligths are constantly blinking and the screen it's just black.

    Actually I'm in another country and I don't know the steps to use the warranty of my product.

    any help will be appreciated

    Regards
    Marlon / Venezuela


  • Anonymous Jan 04, 2009

    I just bought a Aquos and after pluging everything, I turned it on.
    the green power light just blinks and no tv image, screen is black

  • pierrre Apr 16, 2009

    My sharp aquos LC32D43U (2 years old) just stop working today after 2 minutes. The power and opc green ligths are constantly blinking and the screen is just black. The remote doesn't work at all, I have to unplug the TV to switch it off.

  • Anonymous Mar 22, 2014

    no pwer

  • Anonymous Mar 22, 2014

    will not turn on

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  • Sharp Master
  • 19,396 Answers

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

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