Info and forum posts by 'Steve109'

RE: Help with Philips 32PW9527!

My second 32PW9527 which was a replacement under guarantee had the flashing problem you describe - sometimes it being not white but a black flashing instead - and the ngineer who visited said it was a faulty screen tube and he was surprised why it was not also momentarily swithing itself off, but that fault developed later. The flashing always lasted about one and a half minutes from the time of the picture appearing on screen (but it never occurred when there was the blue screen - when any one of the unused EXT channels was chosen) and from then on once it had warmed up it would only occur occasionally until the next time switching it on which would repeat the process. While I was waitng for it to be replaced it developed another problems whre instead ofthe normal black screen from switch on until the picture appeared, there was a red screen with slanting equally spaced narrow yellow lines with moving faint images of the TV channel visible too. From then on the picture`s colours were somewhat faulty. The first set had a bent shadow mask as has my third set under guarantee. Also, this third set has the apparent problem where under its own initiative the brightness clicks down three levels slightly and then back up again. There are also, two faint vertical narrow bands on the screen which are visible in a twilight scene and a darkened room scene (I did not notice it on the previous two sets) . The Colour registry is also off, mainly on the left hand side but the guarantee engineer who saw it said it was the yoke which was causing the latter but it was within normal limits. I have asked for another engineers visit concerning the bent shadow mask on the top right hand side about 12 cms in from the edge which aslo vibrates when the sound "gets going" as well as disturbing the other side of the screen too which is also slightly blue when a white background is frozen onto the screen. The first set had a similar bent shadow mask where it also developed a dirty yellow and green patch but that time it was only during the credits at the end of the war film The Longest Day after having played all of that black and white film. Otherwise, there was just a slight orange hue to black and white films in that area and also a slight deterioration in the colour pictures there too. On my third set there is a slight smokey area on the top right hand-side as described above and in line with the aforementioned vertical band when there is a light background e.g. sky, and this is the bent shadow mask. But today, as I intimated, it developed temporarily into a dirty green and yellow area when a small box of the daytime Baghdad skyline was right behind it when the rest of the screen was darker showing something different.
I am wondering if bent shadow masks are mainly caused by inconsiderate handling i.e. knocks received during transit to the customer.

This item was edited on Tuesday, 25th March 2003, 14:05