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PLTV 26 LCD TV sound-no picture

I have a PLTV 26 LCD TV and the picture quit but the audio still works. I just replaced the inverter board V400-301 and still no picture. I* was told that this should fix the problem but it didn't. Any suggestions?

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I would suggest to check the 24 volts from the power supply to the backlight inverter board. If the voltgage is missing or lower then 20 volts, the power supply is defective. If the voltage is correct, you might have a defective light inside the TV behind the screen since you've replaced the backlight inverter board; you now the failure is not there. The lights are connected to the backlight inverter board.
Let me know if you need further assistance.

Posted on Jul 30, 2009

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I own a sanyo "26


Tv now have it on green LED power on for good and tv flashes of pictures only for few min,than dies and have sound left only?Yes,take the tv aparts.U have all the tools and understanding basic electronic also can do basic soldering work too?Check the tv power supply board,that the board where the power a/c cord plug into it.Check the tv power supply board carefully for dead and dying components parts call capacitors.These dying and dead capacitors parts most likely all of the times,will bulges up or puffing up onto it tops.Changes all these dying and dead capacitors parts components,will solved this problems 70% of the times.If the tv power supply board it is good and no dying or dead capacitors component at all.Than the tv a long board that call the LCD inverter board it is dead.This LCD inverter long board are to helping the LCD screen panel to have a backlight to produced a picture.The tv long LCD inverter board have no parts for sale indivitually,al way have to buy a refurbish whole long LCD inverter board for the replacement.Also if you have no tools and soldering skills to fixed the power supply board by replacing capacitors component parts indivitually too.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board or a long LCD inverter board for the replacement.

May 28, 2011 | Sanyo DP26649 26 in. TV

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Black screen, no picture, audio is OK


Place a bright flashlight against the screen. Look around the edges of the flashlight on the screen and see if you can see an image moving. This indicate the inverter/backlight has failed.
IF you know how to work on electronics or have someone with knowledge/skill you can repair/replace it.
Unplug set.
Lay on flat surface covered with a cloth.
Remove back cover.
First check to make sure the voltage is getting to the inverter board.
If the voltage is present, replace the inverter board. If not check fuse on power supply board.

Inverter board can be found on shopjimmy.com, http://www.tvpartsandmanuals.com/ , ebay.com, marcoselectronics.com and other places on the internet.
48.v1448.021.jpg

Feb 13, 2011 | Protron PLTV-26 26 in. HD-Ready LCD...

1 Answer

Protron PLTV-6 television. Has audio, shows picture very briefly when changing channels, then blank


The tv have a long board call the LCD inverter board.This long LCD inverter board is dead.This long LCD inverter board job is to help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a long LCD inverter board for the replacement.

Oct 18, 2010 | Protron PLTV-26 26 in. HD-Ready LCD...

1 Answer

My pltv 26 plugs in i have turned the switch near the power plug on the standby light comes on but when i push power it turns green for a second or two then shuts off


Sounds like a built in protector kicking in. Something probably has shorted. Try disconnecting the inverter (should look like this: http://marcoselectronics.com/images/48.V1448.001.JPG) to see if you can get the TV to power on without a picture. Be careful - this is a high voltage board.

Sep 26, 2010 | Protron PLTV-26 26 in. HD-Ready LCD...

1 Answer

My tv has sound but my picture went out


LCD inverter backlight board is dead.Tries Websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.The board is a long board in sharp.

Mar 24, 2010 | Protron PLTV-26 26 in. HD-Ready LCD...

1 Answer

Screen loses picture but still has sound...when off for a few minute works ok for about 2 hrs...the last time picture was lost I got a dark screen with the work INITIALIZE ..This is a 36 in TV DVD...


Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board will get ur picture back.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.It a long board in shape.

Mar 17, 2010 | Mintek DTV-263 26 in. TV/DVD Combo

1 Answer

Protron 26 inch lcd.....turn on, picture flashes on for a second or two then screen goes black...audio still functions ok...tried unplugging to reset...doesn't work....any thoughts


There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc. Look for 5vdc, 12vdc, and 24dvc.
http://en.wikipedia.org/wiki/Capacitor_plague
Parts: http://www.shopjimmy.com/catalogsearch/result/?q=Protron+PLTV-26+
Please post back what you find.

Dec 23, 2009 | Protron PLTV-26 26 in. HD-Ready LCD...

3 Answers

Get sound but no picture. All cables and wires seem to be secure. Don't know what the problem is.


It can either be the backlight inverter board or the power supply is not supply 24vdc to the inverter board.

Oct 27, 2009 | Protron PLTV-26 26 in. HD-Ready LCD...

1 Answer

Protron 26 " no sound or pic


in the lower side of the screen internally there is aboard.this board is called the inverter board.which controls the lights in the lcd.if that inverter board is getting short this problem happens.the cost of new inverter board is near to $35.you can get this board from www.radioshack,.com or from at www.shopjimmy.com. ---------- also if you are not familiar with replacing and repairing you can get it replaced by local electronics repair person dealing in lcd repairing.

Sep 18, 2009 | Protron PLTV-26 26 in. HD-Ready LCD...

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