Question about Panasonic PT-51SX30 51" Rear Projection Television
This is a common problem with Panasonic projection TV sets. There are a few differant things that can cause this problem though. The first problem could be a bad cocus screen divider assembley. This is what takes and adjust your foucus as well as the indivitual screen controls for each color(red, blue, and green). Another problem could be a bad capacitor in the sweep power supply that is supplying the screen voltage or whats called the boast voltage to each picture tube board. The next thing it could be would be a bad coil or resistor in the picture tube filiment circuit also in the sweep power supply. Now I heed caution my friend as non of these repairs should be attempted unless you have the full knowledge of how these circuits work and have the proper test equipment as well as the proper documentaion to repair these beast. Please if in any doubt, call a trained tech to assist you in this repair. Good Luck
Posted on Jun 04, 2007
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Posted on Jan 02, 2017
Yes there is, you can very carefully take off the back of front speaker grill and the wood cover behind this. There you will see several controls I think six total, three on the top and three right below it, you want to turn up whats called the three screen controls for the red blue and green but you will need a B & W picture on the TV so you can balance the greay scale. if you do not balance the grey scale the TV will not look good. if you do not think you can do this adjustment properly, please play it safe and call in a tech to do these adjustment for you. Good Luck
Posted on Mar 23, 2007
SOURCE: picture fuzzy on dark scenes
hey all...just to let you know, I had noticed a post that said the individual prior to getting or ordering new parts, he took the tv apart from the back, and cleaned.
My husband spent the better part of the day, vacuuming out and blow drying on cool all the dust and such. after doing this the picture was worse, HOWEVER, we noticed the flashing was gone. SO, he took it apart again, and this time, very carefully took apart the compartment holding the color wheel. He took out the lens, cleaned it with a lens cleaner cloth. Took out the color wheel, very carefully cleaned the wheel, cleaned out the whole inside of that compartment, put it back together, and VOILA!!!!!!
BRAND NEW PICTURE EVEN BETTER THEN WHEN WE GOT IT.... no lies, no problems, it was extremely time consuming, but I ccan't describe the difference.....UNBELIEVEABLE and no spending a grand on a part.
Don't hold me responsible for any problems, but this just worked for us, and my tv is NO LONGER FLICKERING,, NO MORE LAVA LOOKING COLORS, NO SHADOWS.
JUST CRISP! WOO HOO, I DONT HAVE TO BUY A NEW TV... yet.
Posted on Feb 01, 2008
That unit is a two mirror set. Meaning the light engine lens shines down onto a small mirror and that is reflected onto a large mirror and then onto the screen. Gravity being what it is dust and other contaminants cover the lower mirror. Moving the set would only aggrevate dust settling on it. To fix the problem the screen must be removed and the mirror cleaned. You won't believe the difference. It will be like watching a new tv.
Posted on May 28, 2009
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