Question about Philips 42PF9630A 42 in. Plasma Television

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Lines all across screen. Distorted picture

My philips goes in and out of focus and only shows patches at a time with lot of lines all across the screen kinda looks like in the matrix movie. i have unhooked all my wires and have nothing connected to it. Someone has suggested it can be the motherboard but not sure. if some one can help me with this problem id be much obliged

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  • Anonymous Jun 06, 2008

    The

  • dom1234 Jun 06, 2008

    I have a 42 in Phillips Plasma as well. The picture is all distorted and there are vertical lines running throughout the screen. Some images on the screen appear to be casting a shadow. We just had a severe thunder storm and this is the first time I turned it on since then (it's plugged into a surge protector). Could that be a source of the problem?

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The it's surge protector is not an issue. Bring up the menu and see if the tv has the same problem. If it does not the problem is your small signal board. If it does and it is more than 1 line the panel could be the problem.

Posted on Aug 20, 2008

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Posted on Jan 02, 2017

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When ever there is some strong white on the screen it gets distored. For example. There was a white tent on screen and where the light was hitting it it was extremely pixelated and distorted. Ny ideas?


Hello
This fault can occur to mainly three reasons. ABL circuit failure. Low screen voltage or lack of emission from picture tube cathode. Just advance the screen voltage to a little, and observe the result. Screen control can be located on its Line Output Transformer [LOT]. there will be two variable controls built on to LOT marked as screen and focus. Screen control will be at lower side, and focus will bw on the top. Just advance [clockwise movemnt] to a little, not more, advance it till retrace lines are just visible on the screen. Before doing this, set all the picture controls, contrast, colour and brightness of the TV to zero. Once the retrace lines[thin horozontal white lines across the entire screen at about 1 inch distance with each other]; are visible, stop there, turn the screen control counterclockwise to just a point when these lines are just goes off. make this adjustment in a dark room so that you can set this point very correct. After this check the perfomance of the picture. If this does not help you, ABL circuit should be checked for any fault.
If emission of the picture tube has got down, even the screen adjustment said above won't help you. The only way is to replace the picture tube with same type and number. OK.

Apr 16, 2011 | Sanyo DS24424 24" TV

1 Answer

There's a picture on the screen, but it has lines all across it.Sometimes it will be clear, but most of the time it has lines. I also have directv, but they've installed a new box. Is this my television...


Hello
If the lines are there, and are across the screen at about an inch apart the whole screen from top to bottom, it is due to a slight increase in your TVs screen votage. It can be adjusted.
Open the back cover of your TV. There is an LOT [Line Output Transformer], can be seen directly soldered to the printed circuit boar of your TV. It is the largest component inside your TV, which have usually three wires emerging from it, and one thhick wire goes to the final anode of the picture tube, and will seem to be sticked to the top of the picture tube with the help of a rubber ******. Other two wires goes to the base card of the picture tube, a circuit board.
The said [LOT] has two controls integrated on it facing you as you open the TV. Among the top one is focus control, and the bottom one is screen control. Both of them are variable resistors, help to adjust focus and screen voltages respectively.
As set powered on, keeping the brightness, contrast and colour controls to its minimum, turn the screen control a little bit counterclockwise [not more, a little bit] will eleiminate the lines on your TV screen.
Take every precautions we have to, when working with an electrical equipment. Keep children away from you while you are working on it. Never allow them even to come beside you. Keep an adult beside you as a precautionary measure. Ok.
Wish you all sucess.

Oct 24, 2010 | Sanyo HT28745 28" TV

1 Answer

Kv-35xbr48 turns on fine nice picture then horizontal lines form distorting picture like interference also is the back hard to take off and put on needs a good vacum thanks for any suggestion


At first the picture is ok, and then distorted with horizontal lines i thinks. If the horzontal lines are parellel acros the screen, with an inch apart across the whole screen, your tv needs screen adjustments. Screen voltage may be high. look into the crt base also. Change it first. These also not resolve the problem, LOT may be faulty, with respect to screen focus pack. May need replacement. Try first setting screen voltage to a lower settings and observe.

Oct 14, 2010 | Sony KV-35XBR48 35" TV

2 Answers

I have some distored blue color across the screen


Projection sets have two very common problems.

The first common problem is convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

May 15, 2010 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

I have a double image on my screen. When I push


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 21, 2010 | Toshiba 65H81 65" Rear Projection...

1 Answer

Seems like a line across the screen picture looks like it is smashed and sound is fine


These sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks Distorted/3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking screen
  • White looking sceen
  • Halos around objects
  • Red/Orange looking

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 08, 2010 | Philips 51PW9363 51" Rear Projection...

1 Answer

Wavy lines appear across the screen


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

May 01, 2009 | Panasonic PT-51HX42 51" Rear Projection...

1 Answer

Samsung Monitor Syncmaster 913V Montior Screen shows patches of screen on desktop and playing videos


Sounds like your LCD panel has gone bad.

If the unit is under warranty, take it to a Samsung repair shop. If it is not under warranty, go buy a new one. LCD panels are usually more expensive then buying a whole new monitor.

Mar 21, 2008 | Westinghouse L1975NW Monitor

1 Answer

TV Problem


No. Are the lines white or black? Does the picture look distorted at the top? Is there a chance it is still under warranty? It sounds like a problem in the vertical retrace circuit. Probably a capacitor near an IC that's used for timing. You shouldn't be having this issue already. A tech should be able to see a distorted waveform in the vertical section. Hope this helps.

Nov 11, 2006 | Philips 32PT5441/37 32" TV

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