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No picture occassionally - Projection Televisions

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WHAT TYPE OF PROJECTION?DLP,LCD, or 3 tube?

Posted on Jul 31, 2008

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Sreen has perfect color and then fades to a cloudy/faded picture. occassionally picture will go full color then very yellow,very red, cloudy/faded.


Does it come and go? Or is it like this all the time? If you bump the side of the TV does it change the symptoms? Thanks Lou

Aug 27, 2011 | Mitsubishi WS-55613 55" Rear Projection...

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The sound is perfect but no picture although occassionally when switching on the picture appears for a second or so. again on occasion a amall glow will appear centre bottom of screen


Call Zenith Exchange Moduel 1-800-632-6637,Replace the power suppy board the one that has FBT flyback transfomer on it ,It will have Board number on it.I have used this company in the Past they are a good company when it comes to replacing board then to try and fix it yourself.

Oct 05, 2009 | Zenith IQC50H95W 50" Rear Projection...

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Pink/green bar at bottom of picture


phillips are known for dry joints so i would check this first ,if you are good with a soldering iron.

visually inspect each pcb for poor solder connections and solder any bad ones that you find.

this should do the trick.

Aug 18, 2009 | Philips 60PP9202 60" Rear Projection...

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Green light covering all picture with no sound on occasion.


In LCD TV such problems occur due to problems in the circuit board. So no option for you to go for repair to your branded company authorized personnal.

Apr 23, 2009 | Projection Televisions

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Toshiba Tn55x81 frequent convergence problems especially blue/ red double vision. Plus picture get very blurry at times.


If this only occurs occassionally, it suggests that there are bad connections at the convergence ICs rather than defective ICs. If you can solder, try resoldering the pins on the ICs. That may resolve the problem. These ICs are large, black and attached to a heatsink. They will be marked STKxxx.
Keep us posted.
Dan

Aug 19, 2008 | Projection Televisions

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To fix or not?? 1990 Hitachi big screen


Sorry the answer is no. If the rolling pic was the only problem you had then yes throw a new signal board in and move on. In this case your picture not being as sharp as it used to be will also be tubes going bad..18 years not a bad run on three tubes that run extremely warm. Have fun on your upgrade to lcd or dlp proojection this will cost less than the fix of your tv.

Josh

Feb 28, 2008 | Projection Televisions

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Blue Screen/Waviness


sounds like convergance ic's mits is also know for bad caps
1000uf @ 16v check for bulges on top of the cap
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 05, 2008 | Mitsubishi WS-55809 55" Rear Projection...

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