Question about Philips 26PF9946 26 in. LCD Television

2 Answers

Right third image filled vertical lines when hot

About 1/3 of the LCD, right side is filled with vertical lines after 15 to 30 minutes.
It looks like the pixels are longer and longer, starting from the top off the screen, until the color from the first top line is expanding to the bottom, making just colored lines on 1/3 of the screen.

Let it cool down and its working again for 15 minutes

There are 3 main circuit board in that lcd tv :
- tuner / analog board
- Backlight drivers
- digital driver for lcd itself

None of those board are sensitive to cooling with a freezing spray.
I do suppose the lcd itself have a defect, shortly after warranty of course which is very bad news.
And it looks that i'm not the only one

Did someone had this problem solved ?

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  • 3 more comments 
  • nz_sharky Nov 07, 2007

    I have exactly the same problem.I have dismantled the set and heated and cooled all the boards and was unable to trace the fault to a board. I am sure this is a common fault so i hope a solution exists.

  • Viva88 Nov 13, 2007

    I also have the same problem . Initially the vertical bars used to vanish now they are on all the time.

    Do you guys see the lines for all input sources HD , VGA etc .

    I am eager for a solution . Do let me know ... Viva

  • ErikSch Jul 05, 2008

    Same problem here only with a smaller part of the screen. On right side of the screen. Sometime totally black, sometimes white, sometimes a distorted view of the rest of the picture and sometimes also the "caramel-coloured" lines as in the foto that is already on the site.

    Did any of you get any service from Philips?

  • adaptable Oct 26, 2008

    Bought this tv approx 3 yrs ago. Recently right third of screen began displaying poorly much larger pixilated squares than expected, deterioating into the caramel lines as per the photo on site and subsequently ending up as fine rainbow stripes on white background. For some days this was a rare frrequency with the screen returning to normal after some minutes. Unfortunately for the past two day the screen appers to be permanently in the rainbow state despite being off for the better part of 36 hours.'s just come back on - until next time i guess

  • lotusbluete May 11, 2010

    i got the same issue with mine though on the left side of the screen... it also starting after 15-30 min...
    try to cool down the tv a little by open the topplate but with no success...

    tv was bought in june 2005...



2 Answers

The Philips service folks in India told me its a panel issue and panel needs replacement . They advised me to go for a new TV instead.

If you guys learn anything new ... do let me know ... Viva

Posted on Jan 05, 2008


Ive Had the same issue with my TV - and its really dissapointing to see it so well documented - obviously this is a design fault- its the last Philips TV im buying :(

Posted on Jan 13, 2008


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