Question about Philips 42PF9631D 42 in. Plasma Television

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My philips flat screen tv has got negative colours and two vertical lines down the middle of the screen it just went like that is it the tube?

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It is possible that you may need to download an upgrade to a flash drive and then with the tv off, insert the flash drive into the usb port on the tv. Turn the tv on and it will load itself. Check Philips website for updates...

Posted on Sep 10, 2010

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Hello

The vertical scan of your TV has failed. All picture tube type TVs have both horizontal and vertical scan sections to scan the picture on the secreen. When horizontal scan fails, you will see a vertical line at the middle of the screen, and if vertical scan fails, there will be a horizontal line through the middle of the screen. In your TV, the second stated has happened.
This may be due to an IC trouble or a voltage loss inside the printed circuit board of your TV. To rectify this fault you have to open your TV, and locate the vertical output section inside it. It is very easy to locate that section. There will be four wires goes from the deflection yoke; the coil fitted at the neck of the picture tube; out ot which, two will be thick and the other two will be thin. The thick wires are usually colour coded as red and blue. Colour coding may differ from set to set. Anyway you have to follow the tow thin wires, as they are carrying vertical scan signal to the yoke.
Following it, you will reach to a plug in point on the printed circuit board. Upside down the printed circuit board, and follow the track through which that wire connection goes, and finally you will reach to the vertical output section.
There may be transistors or IC used on that section. First check the voltage at the vertical output section. Voltage lose also may occur in this section. If it uses IC, check for any loose or bad solderings at the terminals of the IC. I advice you to resoder the suspected points by applying a little more solder, without shorting the terminals. In most cases this will solve the problem. If there is voltage, and there is no loose solderings and still the fault perists, replace the IC or transistors, whatever it may be, with same type and number.
If you want anymore asistance, fee free to contact me through Fixya. OK.

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If this is a tube type or crt type. Your vertical circuit has a problem. Could be the vertical IC loose connection on its board. Or the vertical ic itself is faulty. If just resoldering or refluxing of its pins doesn't help check some minor cmponent within vertical circuit. Or the vertical ic is defective already.

If your not inclined on electronics never do the repair itself, nasty voltages might caught you.

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1 Answer

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not the picture tube; vertical failure. Vertical IC and probably capacitor that caused it to faill. In some cases just resoldering veritical IC pin connections

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2 Answers

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What is the model number it sounds like pixel problems or board problems. For more info ctechnicians.com

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1 Answer

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check the resistors and capacitors in vertical section of the television..or change the vertical ic.

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