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Toshiba tp48d50 has vertical red wavy lines on

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These Toshiba TVs are well known for convergence problems. When you put the convergence test pattern on the screen, does it appear normal? If there are curves in the crosshair lines and colors flairing from them, you have just such a failure. The convergence output ICs will have to be replaced. You'll spend $300-$450 to have this fixed.

michtech


Posted on Feb 19, 2009

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Toshiba hyper module. Vertical lines on screen.


change the 10 or so surface mounted bad filter caps in the Hyper module this set uses--the board is no longer available--it can be sent out for rebuild (not toshiba) but that is rather costly (200+)

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Red and green wavy lines


chek your power in if it is stabile than you musht range a power stabulisator othervice if is ok need chek in to change crystal diodes and aom other parts

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The convergence circuits need to be replaced Sometimes it is just the matter of 4 capacitors and an IC but often than not ythe whole board has to be replaced.

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About two months ago when we first turned on the TV there were wavy lines across the whole picture. When it warmed up they would go away. Now, the lines are there almost all the time and it's getting...


hi
You are experiencing a lack of vertical deflection or vertical collapse. Since it will come back the first thing I would suspect is “ring cracks” in the solder joint in the vertical circuit, mainly the vertical IC. These suspect solder joint can be re-soldered and the television set repaired.
I would suggest that you contact a local servicer. If you are repairing the set yourself, be careful, there is always a risk of shock when dealing with electronics.
OR
Check your equipment connections. Disconnect your equipment (VCR, DVD or set-top box) from the TV and reconnect, making sure each connection is in tight.
OR

chek this site,i blieve u will b helpfull
http://www.dshosu.com/how-to-fix-toshiba-rear-projection-hdtv-wavy-lines/

regards

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Red vertical convergant line


convergence Ics you will need two STK392-120 convergence ICs. You can get replacement ICs at the following link with free instructions.
http://servicemanuals.vstore.ca/

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thats going to be something to do with your convergence.if you think its worrth it take it to a shop but usually after 10 of age they start to act up and that sounds like yours maybe be ready to be replaced

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1 Answer

Vertical hold wavy then no picture and power lite flashing


you are probably having 2 problems. on that model there was a jumper wire the fed the convergence amps power and would get very bad cracked solder. and casue some fuses to open on the main deflection board. if that is there i would recomend replacing the 2 convergence amps(stk392-110) and open fuses. but your wavy lines are going to be all the 10mf16v surface mount capacitors inside the hyperunit(figital scan card) it is a square metal case located behind the input board.*****it is soldering in with 4 tabs on the bottom side of the signal board so be careful not to just start pulling on it to get it out*****

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http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html


http://www.eserviceinfo.com/

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