I have a Panasonic HDTV Projection TV - PT-47WX42. The sound is not in sync with the picture on some stations and there is no sound on other stations. There are only a few channels that the sound is working properly on. If you can give me an idea of what to do I would appreciate it very much. Thanks. Fran from PA
Indicates a sound board problem
take it in for a proper diagnosis and quote
SOURCE: Panasonic PT-50LC14 LCD rear projection
well it gets real compicated, if you are good with electronics and can take apart and put back together the inside the projector needs cleaned or the easy fix replace light engine about $600.00 rebuilt
SOURCE: hdtv projection monitor (pt-53w-42h panasonic
bad convergence ic's
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
SOURCE: Panasonic HDTV Projection PT-47WX42F won't turn on
Your Set is going into shutdown mode due to the convergence section of your television. Thats what 3 blinks mean. It could be just the Convergence ICs and resistors or you may need a new Signal board TNP2AH035 Let Me know if you need further assistance with this problem.
SOURCE: Blue line Ghost Image on Panasonic Projection TV
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This set uses two Stk-392-110 convergence IC chips; both need to be replaced along with any of the 2.2. ohm light blue resistors around them; a bad resistor will be white in the middle; You can buy both for less than 13 dollars plus shipping on Ebay.
The chips are located on metal heat sinks with fins and are side by side. They are black(about 2 inches wide by 1 1/2 tall) and should have the STK-392-110 number printed on them in white.
Depending on your level of skill at this kind of work you may be able to do it yourself---if you need step by step instructions contact me---I have them in Microsoft word---start to finish repair including what you will need to do it.
If you are not able to do the repair yourself now is the slow time of year for TV repair shops----It should be fixable right in your home and the repair takes about an hour--I have done hundreds of these sets--some shops charge 300-400 but I do lots of them for 200-250 total cost. Make sure whoever you get changes BOTH of the chips!
Shop around and if they say "needs to go to shop" keep looking; any good tech can do this right in your home.
I do this here for free so if this helps you give me a vote here. If you need direct help contact me.
[email protected]
SOURCE: i have a panasonic pt-47wx42 a red shadow of the
If you have gone into the customer menu and CONVERGENCE is skewed and will not adjust:
One or both of the two
STK-392-110 convergence chips that this set uses are bad.
The chips are about 2 1 /2 inches wide by 1 1/2 inches tall and are black in color. They are mounted on metal heat sinks
with fins and are side by side--they will have the Stk-392-110 number printed on them in white letters.
If
you locate them take a good look at all the light blue resistors in
front of them--most are marked 2.2 ohms---look for any that are white
or discolored in the middle---if you find one or more YOU HAVE FOUND
YOUR PROBLEM.
BOTH chips and any bad resistors need to be replaced and the set adjusted. If you can do this repair you can save a lot of money as you can buy both chips (a pair) on Ebay for about 12 dollars plus shipping.
I have start to finish instructions for this repair on this type of set.
If
you cannot do this repair yourself, shop around your area--most shops
charge 300-400 for this kind of repair--I do them here for 200-250 and
have done hundreds of them.
If they say it has to go to the shop--keep looking as any good tech can do this repair in your home in about 1 hour.
If
you have any questions or need advice reply to this posting here OR
check out all my many solutions here for more information concerning
what I have told you.
I am here to help people. If this information was helpful rate this solution as I do this here for free.
Regards, SD TECH
You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
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