Question about Spectroniq PLTV-42HW68 42 in. LCD TV

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Sound and manufacturers logo show on tv screen when powered up however no picture.

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The inverter may have gone out. If the display is momentary such as for the logo, the inverter cannot hold the high voltage to sustain for the back-light. Shine a flash light on the screen and see if you can detect any images. If you can, then the back-light inverter is bad.

Posted on Nov 08, 2010

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Posted on Jan 02, 2017

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TV has no picture, no sound just the VIZIO logo light is on the screen.


Did you check out the power supply for proper operation since both the audio and video are gone? If PS is good then the problem may very well be on main board.

May 03, 2016 | Vizio E421VA 42 in. LCD TV

2 Answers

No picture only sound.


Engineers are right, you need a new LED panel., or the component that supplies the light to the screen.

Mar 18, 2016 | Philips 55pfl4706df7 4000 Series Lcd...

1 Answer

When the dvd/hdd is on it not show any picture on the tv


Do it show its Logo on screen. If it shows the logo, and does not show picture, the fault is with its pick-up lens system. If it do not show the Logo too, the fault is with its main power regulator board [SMPS]. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Oct 26, 2014 | Sony RDR-HXD860 DVD Recorder/HDD Recorder

1 Answer

Hello, I have a lg lcd monitor. w1941s model. when I start my computer, it work for sometime. then it goes blank showing only the LG logo. then the power button doesnot work. it hang up glowing. again


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Take it to a repair shop.

Apr 06, 2014 | LG Computers & Internet

1 Answer

I have a problem in my BPL TV(FHR-21) it showing a green color


How to Fix a TV When the Screen Is Green


A TV is calibrated by the factory to provide a "standard" picture that attempts to appeal to the vast number of buyers who take the set home. To adjust a TV picture that is too green, you must first enter the hidden "service menu" that technicians use. Adjusting the colors to remove the green cast will save you the cost that would otherwise be incurred from a TV technician coming to your home. No special tools are needed, nor any expertise in how the TV works.

Press the power button on the remote of a TV whose picture is too green in order to turn it on.

Press and hold down the "Menu" key until the manufacturer's logo appears on the screen. This could take up to a minute or more. Release the "Menu" key when the logo appears.

Immediately press the "9," "8," "7" and "6" keys in this order. Press the "Enter" button on the remote to enter the "Service Menu" screen.

Press the "Menu" button to go to the second of the two "Service Menu" screens. Press down on the "Down" arrow until you highlight "Color Calibration." Press the "Enter" button to enter the "Color Calibration" screen.

Select one of the color bars on the screen. Adjust the color by changing the values of the color bar by pressing left and right on the "left" and "right" arrows on the remote. Repeat this procedure with the other color bars as well. Stop adjusting the colors when the green cast is no longer present.

Press and hold the "Power" button on the remote to exit the "Service Menu" and save the adjustments you have made. Turn the TV off.

Sep 14, 2011 | Audio Players & Recorders

1 Answer

No picture but sound. When turning the tv on the


Power supply issues - I bet bad capacitors 'dried out' .
A good servicer should be able to fix it for you.

Nov 19, 2009 | Imation MLTD3222 32 in. LCD TV

1 Answer

Turn on JVC 32" flat screen TV and got the JVC logo then sound and no picture. Then next day, only got the logo, no sound or picture.


There is a way to reset television. I have a jvc 42inch that was just going to main logo screen and not beyond it. If i remember correctly you unplug the tv hold power button for 5 sec on tv then let go plug in and start. If that dont work unplug and then plug and hold power button on tv for 5 sec. It is 1 of those combinations. My tv worked after that. I googled my problem and a website listed that some tvs need to be reset.

Aug 16, 2009 | JVC LT-32X787 32 in. LCD Television

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