Televison & Video Logo

Related Topics:

Dennis McCollum Posted on Jun 22, 2011
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

WHEN I TURN ON TV I HAVE A RED POWER LIGHT AND A VERY LIGHT WHITE SCREEN NO VIDEO. WHEN I TURN OFF THE RED LIGHT GOES AWAY BUT SCREEN WILL STAY VERY LIGHT WHITE UNTILL UNPLUGGING.

  • 5 more comments 
  • Dennis McCollum Jun 22, 2011

    I have looked at the power supply bd and there are no bad capactors,this may be power surge,is there any other damage then the power supply or is the power supply most lickly, i do get a dim screen but no video/audio

  • Dennis McCollum Jun 23, 2011

    Toshiba TH42PZ80U Lights up but no video/audio. no caps bad in power supply

  • Dennis McCollum Jun 23, 2011

    yes it is a Panasonic. The red light does not blink stays on

  • Dennis McCollum Jun 23, 2011

    Yes it is a Panasonic. The red light does not blink.

  • Dennis McCollum Jun 25, 2011

    panasonic th50px80u plasma

  • Dennis McCollum Jun 25, 2011

    This does not have thje capactor problem,any other suggestion.model is th50px80u plasma

  • Dennis McCollum Jun 25, 2011

    no audio or video. I suppect the A board

×

3 Answers

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Master 4,889 Answers
  • Posted on Jun 23, 2011
Anonymous
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Oct 06, 2007
Answers
4889
Questions
8
Helped
1512901
Points
14106

The dim glow you are seeing is coz the backlight is coming on. It means that everything else except the main A/V board is operational so that is the source of the problem. I believe this is an LCD flat panel tv. Please get me the model number of the tv so that I can get you a pic of the board. you are gonna have to open the tv up, locate a board that looks like that and get me the part number off it so that I can get you the link to the replacment

  • Anonymous Jun 25, 2011

    Ok sorry about that. I thought this was an LCD. So does "no video" mean that you have sound but no picture or no picture and no sound? This is not a capacitor issue. Its either a main A/V board issue or a buffer board issue depending on your reply to my question.

×

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Master 2,098 Answers
  • Posted on Jun 22, 2011
Anonymous
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Sep 12, 2010
Answers
2098
Questions
2
Helped
456474
Points
6457

Hi,
May I know the exact brand and model no of your unit, it will help diagnose where the fault came from.
Jdvillanueva

  • Anonymous Jun 23, 2011

    I know this model no is for Panasonic.



    Please let me know if the red light at the front panel is blinking, if so count how many times it will blinks.

  • Anonymous Jun 23, 2011

    Follow the steps below to access the "Self Check Mode".



    Press and hold the "Volume (-)" button on the main unit, "OK" button on the remote control at the same time for more than 3 secs.



    or



    Press and hold the "Volume ( - ) button on the main unit, "Menu" button on the remote control at the same time for more than 3 secs.



    Self check screen will be display.



    Let me know what will be the result.



    Jdvillanueva

×

Ad

Wale Sarumi KomputerSolution

Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

  • Master 6,993 Answers
  • Posted on Jun 22, 2011
Wale Sarumi KomputerSolution
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

Superstar:

An expert that got 20 achievements.

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Joined: Nov 04, 2009
Answers
6993
Questions
2
Helped
1701210
Points
1261

Hello,
The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.
The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.
All these can be checked on the power supply board.
But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.
The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)
You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.
What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).
You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.
Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.
If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.
I hope this helps.
Regards.

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Samsung TV pn59d8000ff won't turn on. Red power light will blink a couple times and then stay on but the screen won't light up.

Your power supply has gone bad. Is the power supply inside the TV if so then it's the
board power supply.
0helpful
1answer

My p50t501 plasma TV wont stay on red light blinking. Turn on the blue light comes tv stay on and goes out . I've had this problem once just kept turning on and it stopped for 3 years

I think it is common problem for LED,LCD,CRT TV .When power supply is not voltage stabilizer damage or high voltage .So you should need help a good technician in your local area.
0helpful
1answer

TV wont stay on

If the power light also changes or goes off there is a problem in your TV. If the power light does not change, the TV is staying on.
Press menu to see if any words come on the screen. If they do, wait for them to go away and make sure your cable box is on.
If the cable box is on, make sure the input/source is the same as where you have something connected to the TV.
0helpful
1answer

The red light on my ps3 is blinking and wont stay on

Turn off the ps3. Try reseating the hard drive. Take the cables off and then hook them back up. After this turn the ps3 back on and see if the blinking red light goes away. If it doesn't then try another hard drive in the system. If the blinking light goes away then you know you have a bad hard drive. If the blinking light does not go away then you know either the power supply or main board is bad.

0helpful
1answer

Unable to properly connect sony dvd to tv to play movie

DVD-3 RCA phono outputs(red & white=audio,yellow=video
I have a DVP-NS700,the same happens on mine.Turn it on,goes green to red(standby),then press eject,it will then power up properly.
0helpful
1answer

Plasma TV

did you hear the sounds? or maybe you have defective power source in hot side..
Not finding what you are looking for?

54 views

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Cindy Wells

Level 3 Expert

6688 Answers

 Grubhead
Grubhead

Level 3 Expert

5755 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...