Question about LG 42PQ30 42 in. Plasma TV

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Lg 42pq30 no picture but it has sound and no screen

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Posted on Jan 02, 2017

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SOURCE: Remote does not work for LG 42PQ30 flat screen


Either there is no infrared emission from your remote control or the remote sensor inside your TV is faulty. Check the battery contacts of your remote control first for any rust or any other obstructions blocks power from the battery reach into it. Replace the cells with new one and check. You can check the function of your remote control with a cellphone camera which has camera option with it. Place the remote control at about one feet away from the cellphone camera, after the phone is set to camera mode, press each button on the remote control. You can see image of infrared signal on the screen of your camer. Human eye cannot detect infrared signal, but digital cameras can. If not you have to open your remote control, to see whethere there is any loose or bad soldering inside its circuit board. It can be opend by pressing its side **** with any sharp instrument like knife or so. There are locks in its cover, and must be released by pressing it as I pointed above. After opening it, look ofr any loose solderings inside it. There will be a few components and an IC there inside it. A crystal and an infrared light emitting LED will be there. Look ofr any loose solderings to this components terminals. If so resoldering it will solve the proble.
If this does not helps, and there is infrared signal comes out of your remote control, shen you have checked it with cellphone camera, infrared sonsor inside your TV scircuit boar is faulty. To replace it you have to open your TV. This sensor will be just behind the infrared reciveing window of your TVs front panel. It is a three terminal compnent, look black in colour and can be desoldered out very easly. Note its number, which will be marked on its bodey, laser printed, go for a new one, replacing it will solve the problem.
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Posted on Feb 06, 2011

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I have an lg 42pq30 plasma tv the main input board went bad causing no audio.. i replaced the board with same part number .. it now has sound but the picture at the right is off the screen good 20% of...

You must use a usb memory stick to copy data values from the old board to the new board. First you have to put the old board back in, insert the stick then follow prompts to copy register values to the memory stick. Then put the new one back in and load the values back onto the new. I would definitely have a certified tech do this process. You don't want to make a mistake with the old board values.

Feb 18, 2011 | LG 42PQ30 42 in. Plasma TV

1 Answer

I have an lg 42pq30 the main input board lost sound so i replaced it with same part number.. got sound back but the video runs off the right side of screen...any help thanks in advance

you need the set up remote, part number 105-301-m . in start mode press tools button, rt click until your model shows up. the main board is for several size screens. HIT enter when you see your model number.
Please post feedback

Feb 18, 2011 | LG 42PQ30 42 in. Plasma TV

1 Answer

I have a problem with my lg 42pq30 plasma, it has vertical lines distortion across the screen. does anyone know how to fix this problem

yes is the 2 top & botton board connect to Y board control is bad need new one
Most problem on plasma TV is heat & burner some component, about 80% is 2 top & bottom board connect to Y board is come in bad

Feb 04, 2011 | LG 42PQ30 42 in. Plasma TV

1 Answer

No picture

I would ask if you have sound, but first it set comes on and no pic, use flashlight 2 in away from screen when on and see i you get picture, if so then your inverter board is out, if no led or lights when turn on then it's your power supply bad, you can use places like,,

Jan 19, 2011 | LG 42PQ30 42 in. Plasma TV

1 Answer

How do I get LG Plasma TV 42PQ30 to work with a dell laptop in connection use of a VGA/SVGA video cable. Thw hook up should act as a plug and play if my understanding is correct. I am using the RGB IN(PC)...

well, if the cable and adapters are friendly (meaning, you are able to plug the right video connection from LT to TV), sometimes you need to tell you LT that you have a second screen to output video. To do that, there should be a display icon in your bottom-right taskbar. Double click, and you should be able to see the options to either clone, pan, or primary your second display screen. :D

Mar 21, 2010 | LG 42PQ30 42 in. Plasma TV

1 Answer

Picture takes split second to focus

That normal,this tv a year or more right?Mornal progressing the aging of the tv.

Mar 19, 2010 | LG 42PQ30 42 in. Plasma TV

1 Answer

I need the code to program my sky plus remote to my new lg tv it is an lg 42pq300

press intreactive on sky remote move down to sky costomer service press select then move down to program remote ( 5 ) you will need make ( lg ) and model number of tv then follow on screen instructions
hope this helps

Nov 28, 2009 | LG 42PQ30 42 in. Plasma TV

1 Answer

Need owner's manual for LG 42

You can get the manual on link below. Go to support then look under documents on right side to download manual.

Nov 25, 2009 | LG 42PQ30 42 in. Plasma TV

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