Question about Protron PLTV-26 26 in. HD-Ready LCD Television

2 Answers

27" LCD PROTRON FLAT SCREEN HAS SOUND BUT NO

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  • Meg Kim Dec 30, 2010

    Thank you very much...this is very helpful and I will consider my ? answered once I try the steps you mentioned. I very much appreciate your resonse. HAPPY HAPPY NEW YEAR!!!!!

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2 Answers

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  • Protron Master
  • 6,993 Answers

Hello,

It can' be a fuse problem but it could be a wire connection problem or video card problem.

But first, connect the TV to a DVD player using a RCA and observe if there would be sound.

In case you don't know; Yellow stands for video, Red stands for Audio and White also stands for Audio.

The wires will go from "OUT" of the DVD player to "AV IN" at the back of the TV.

If there is still no display after this, please let me know so that I may direct you further.

Good luck.

Posted on Dec 31, 2010

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  • Master
  • 10,515 Answers

Hi,

Disconnect the TV for few minutes, say 10 minutes and then turn it ON.If the problem persists, then it would confirm an internal failure. It is neither a fuse nor wiring.There is no fuse in this TV. There is no wiring other than the connectors between various boards. Rarely, i have seen any issue with them. I could say, rare of rarest.

This is highly suggestive of ' bad inverter board '. You need to get this tested and replaced.

Initially, since the Protron PLTV-26 is an LCD type TV, a simple test is to shine a flashlight at an angle towards the screen. Do this in a darkened room. Aim towards the area where the volume level is usually shown. Press on the volume control Up/Down. If semblance of the level could be seen even darkly / faintly, then the problem with the Protron would be a backlighting issue. Backlight as the term implies, refers to the soft whitish glow provided by small tube like bulbs behind the screen. This then would almost always be a hardware fault, not a setting nor a configuration concern and would require that the PLTV-26 be opened up to effect repairs.

Options then are:

  • consider a DIY (do-it-yourself) repair if and only if comfortable working with electronic components & circuitry, use of a DVM/VOM, a soldering iron/station and safe practices with electrically powered devices. Access to a Service Manual or at the very least, a schematic diagram would be a necessity;
  • should you be uncomfortable with a DIY, perhaps your best bet would then be to consult with and/or seek the services of an authorized Service Center (specially if still under some form of extended warranty) or a qualified professional.

If a DIY is being considered, possible suspects are:
  • CCF (cold cathode florescent) lamps (least likely);
  • controller (a possibility);
  • power supply particularly to the inverter (likely);
  • inverters (most likely).
Let me know,if needed further assistance.

Hope i helped you.

Thanks or using ' Fixya ' and have a nice day!!

Posted on Dec 30, 2010

  • taran_2005
    taran_2005 Dec 31, 2010

    Thanks for your response!!

    You are welcome. Do accept my solution, if it has been of any help.

    Thanks and Regards
    taran_2005

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