Question about Toshiba 42H81 42" Rear Projection Television

1 Answer

Vertical hold wavy then no picture and power lite flashing

No picture power lite flashing when plugged in. at first vertical hold wavy then warm up and picture would stablize

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  • the Broz Feb 23, 2008

    toshiba projection tvs require repair more often than their tube tvs

  • Anonymous Mar 14, 2008

    Same thing has happened to ours. Do you know what the estimated cost is to get this resolved?

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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*****

Posted on Feb 21, 2008

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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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