Question about Philips 42PF9630A 42 in. Plasma Television

1 Answer

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

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 138 Answers
Re: lines all across screen. Distorted picture

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

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

My samsung LA55A950 have just started having screen flare. lots of verticle coloured lines in patches across the screen. Any ideas?

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.

Feb 24, 2015 | Samsung Flat Panel Televisions


Solving LOT arking problems in Philips 29" CRT TV

I had a problem with my philips 29" CRT TV model 29PT2452/94S. The LOT was leaking at the lower portion of the cable that goes to the anode of the picture tube. Since a good replacement of the LOT was not available, I did the following: I wound a good insulation tape on the area where I noticed the puncture. I removed the cap and de-soldered the connector that goes into the picture tube top. Then inserted a thick insulation sleeve removed from a piece of underground telephone cable which was a tight fit. Then I cut a long piece of petrol tube that we normally use for two wheelers, and inserted it all the way upto the area of puncture. Then refit the anode connector back as it was. The problem got solved. But the TV shut down immediately after switch on. When I entered into service mode, it showed error 11. I replaced the RGB amplifier IC TDA6107 on the CRT PCB, adjusted the screen and focus control. Replaced all the electrolytic capacitors (48 Nos.) as the TV was around 8 years old. Now the TV is working like a brand new one! (Caution: Please remove anode cap only after discharging the residual charge that remains [Tube is a very large capacitor!]. See any guidance available in net or consult a technician before you ever touch anywhere near the LOT thick cable that goes to the top of the Picture Tube, even when the TV power plug is removed! Beware: You should have basic knowledge of TV servicing before you ever attempt to do such service]

on Jul 03, 2012 | Philips Flat Panel Televisions


White Raster with thin lines; Sound Ok.

White raster with retrace lines: No picture, Sound OK
(picture tube based telivisions.)

It is a common fault to occur in most of the CRT based telvisions, regardless of which brand it is. There will be sound OK, and a bright screen with thin white horizontal lines across; at about an inch space, all over the screen area. This fault may occur along with colur shades also, like blue screen with white retrace line, red screen with white retrace lines, green screen with white retrace lines. Let us take the first case. A white raster with white thin retrace line acorss the screen. These are call vertcial retrace lines technically. To make it mor understand, we have to go to some picture tube electrode details. There are three colour cathodes for a colour picture tube, Red, Blue and Green. Two girds are there called Focus and Screen. Focus grid is supplied with focus voltage which in turn determine the cocus of picture, and screen grid is supplied with screen volrage which determine the emission of the picture tube; in short. There is a final anode to all the picture tubes, which supplied with Extra High Tension voltage, can be located at the top side of the picture tube, to which the EHT voltage from LOT is connected with the help of rubber ****** and clip. Without these three voltages, EHT, Screen and Fcous, no raster will be produced. Therefore in our case, there is a raster, so, horizontal output section including Line Output Transformer [LOT] is functioning well, and as far as sound is there, tuner and video IF section are working well. In fact, all other section except, video output section is working properly.
There are three cathode points on the base card, marked as Bk, Rk and Gk. Check the voltages of these three cathodes. In our case, it will be very low or approximately equal to zero. When cathode voltages goes low, emission of the CRT increases, is the reason. There must be a voltage between 120 and 135VDC at these points. Find out the reason for this voltage drop is the next step. The video drive voltages in most TVs comes from LOT windings, after rectification and filtering. There will be one reisitor of low value, say one Ohms or so, will be connected series with this winding, in between diode and winding. Check the voltage at the cathode of this rectifier diode first. If found low replace the diode and the smoothin capcitor. The smoothing capacitor will be between 33 and 47MFD 250VDC rating. Replace both of them. If there is volatge, say 200VDC or so, check whether this voltage comes to the CRT base board or not, If not, check the conducting wire, serial resistors; if used for open. There is no chance of transistor shortage at this time as the raster we see is white. If raser we see have a specific colour predominent, that is green, blue or red, check the revalent video out transistors and replace it. It is best to replace all the three video output transisors at the same time with same batch and number.

on Apr 18, 2011 | Flat Panel Televisions

1 Answer

My 42'' philip looks like it has a cracked screen down to the bottom right corner but it goes all the way across to the left and up the left side with a big white and black but the picture still...

Unfortunately cracked screens are a very expensive and time consuming repair. 9 times out of 10 its simply easier and more cost effective to simply buy a new TV. I'm sorry to be the bearer of bad news!

Jul 19, 2011 | Philips Flat Panel Televisions

1 Answer

Right half of LCD screen goes dark. Like the brightness and colour are bleeding away. The image is still slightly visible beneath the dark. Some horizontal lines also appear across the entire screen, about...

I have the exact think happening on my Samsung LN46A530 and it has just been 2 years since I bought it. There better be a cheap fix for this because a $2,000 product has to last a lot longer than 2 years.

Aug 21, 2010 | Samsung LN46A530 46 in. LCD HDTV

1 Answer

How do you fix the screen on a Philips tv model number 47PFL3603D

If the display is damaged, you can't. If it just has scratches then you should be able to live with that. If it's damaged to the point of the picture is distorted with lines then its time for a new set if that's what you choose, because the display is about as much as a new set.

Oct 20, 2009 | Philips 47PFL3603D LCD TV

1 Answer

Red,green and blue lines across screen

I f these lines are slightly diagonal and they all showed up at the same time. you probaly have an open resistor in the ABL circuit. since your set is 13 yrs old, I would not put a penny into it.
You might take the front grill cover off and the panel behind it and find the little black box with 6 little controls 3 are for focus 3 are for screen turn the screen ones ever so slightly counter clock wise. the control in the middle is the green screen adjustment. If the green line goes away try the one labeled r for red and b for blue.

Mar 31, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...

2 Answers

Phillips 50 inch Plasma

Philips 50 inch plasma tv no video but has sound

Sep 28, 2008 | Philips 50PFP5332D 50 in. Plasma...

1 Answer


sounds like the Y to replace all 3 at same time main and buffer upper and lower

Jul 01, 2008 | Philips 42PF7320A 42 in. Plasma HDTV

1 Answer

Dozens of horizontal lines across display!! HELP!!!

Bring up the menu and if the lines are not on the menu replace the small signal board that is your video prossor. If the lines are still the replace the Y main board that contrl the top half of the screen.

Feb 10, 2008 | Philips 42PF7320 42 in. EDTV-Ready Plasma...

Not finding what you are looking for?
Philips 42PF9630A 42 in. Plasma Television Logo

Related Topics:

82 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

66552 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers


Level 3 Expert

4518 Answers

Are you a Philips Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides