Question about Philips 17PF9946 17 in. HDTV-Ready LCD Television

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Transparent blue band

Recently this problem occurred;switch on unit -fine,however after a few minutes
a 50 mm blue band appears vertically from top to bottom of screen about 1/4
way in on left hand side.unit is @ 2 1/2 years old.Is this fixable or is it terminal?

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  • 146 Answers

THIS IS MOST LIKELY TERMINAL. YOU NEED A NEW PANNEL. YOU CAN TRY TO TAKE OFF THE BACK COVER AND RESEAT ALL THE RIBBON CABLES THAT GO TO THE PANNEL. IF THIS DOSEN'T FIX IT, BUY A NEW TV.

Posted on Apr 23, 2008

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Black vertical band on tv screen


Actually I am not sure about this one, but I like to suggest to leave the unit running for at least 24 hours and see what happens. Going by the amount of time it has not being used it is hard to tell what actually occurs, the advice is to leave it on standby for any period of time. See what happens anyway, you can't do anymore damage than you already got can you? Else, keep switching it on and off, it may clear it that way. If you are able get a update on-line, re-program you tv it worked for my Samsung 39 inch. Good Luck

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1. Unplug unit from wall for 3 minutes;
2. Press & hold Power button for 1 minute;
3. Plug in unit.
OR:
1. Unplug for 3 minutes.
2. Plug in unit.
3. HOLD Power Button as unit starts ... hold until the unit flickers on then off twice.


This effectively returns the components to factory specs, much like resetting a computer. It offers a *temporary* fix, lasting 45 minutes to hours. All depends on the unit.

Mom has an Insignia 32" with the same color separation problem, which worsens as the day progresses. Best results achieved while television is cold.

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1 Answer

Panasonic TC-P42S2 .. Transparent 2 inch wide vertical discoloration on panasonic 42 inch plasma, very left of the screen.


Fixed mine, myself! Black 3 inch vertical band (stripe) appeared after a cros country move on our PC-T50G10. Occasionally we would see white band with multicolored pixel width stripes. Took the risk of taking off the back to see if I could see anything. Found places on sides and bottoms where plastic like 2" flat cables could be seen. Guesstimated where the band was and found that I could flip down a black cover on one end of the cable. Tried to pull it, gently. Mistake. Realized it wouldn't one out like computer hard drive cables, so I took out the screws holding the plate on the other end (it's only an inch long). That allowed me remove the cable. Took it out, cleared away dust, put t back and closed the black over. It worked! Put the screws back in, back on and... we are happy (although I do have four extra screws!). Just be gentle.

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1 Answer

Hello Expert. I have a few years old Samsung LCD 37in. model LE37A457C1D. Few drops of water got in from the top of the set, when it was off. When turned it on, darker 5inch wide vertical stripe appeared....


It is important that you do not switch the set on unless the board is cleared of moisture that is conducting the circuits to bridge and short causing the change in the pictures. so remove mains plug from the outlet , remove rear cover. now take out the main boards after marking the connectors and using a hair dryer warm the boards while looking for water logged into the circuits. You can also use a soldering iron the steam off if there is water within pockets in the board. Only when you are convinced that there is no moisture should the board be set back into the tv.

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1 Answer

The screen has colored vertical lines and becomes to a dark black band about 6 inches of width.The tv is exactly two years old by today.


My 3-year old 52-inch Toshiba flat panel TV (Model # 52RV53U, Serial # AM409000295) developed a display problem (purchased Aug. 2008, manufactured July 2008). Vertical multicolored lines appeared on the screen just left of center. The band of thin vertical bars is 5.5 inches wide. The lines are about 1/16-inch wide. They are stationary, always exactly in same place. They over-ride any other picture on the screen (no transparency). They are there all time even with no video inputs to the TV after the unit is turned on. See picture #1. The TV works well in every other respect, but, obviously, it is annoying to watch the picture with the color band blocking about 1/6 of the picture.

Further info, pics, comments, and updates on my Facebook page at

http://on.fb.me/mVwhVN

I already swapped out the TCON board with no improvement and replugged the TCON board cables with no improvement.

Most likely it is the flat panel tab bond failure (panel made by Samsung). Further solution updates will be on my Facebook page.

Apr 11, 2011 | Toshiba REGZA 52RV530U LCD TV

1 Answer

Large colour lines / bands on screen


Thats your midddle driver board on the botton m8.

Try the technique on this video if that doesn't work ,replace the board by with another of the same part number.Cheap to buy.Ebay.LCDTV Spares shops online

http://www.youtube.com/watch?v=9NPobj0_GSo

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1 Answer

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