Question about Toshiba 43H72 43" Rear Projection Television

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DOBLE IMAGE Touch Focus error Blue Gun (showing curved image) blue and yellow image showing

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THE CONVERGENCE DRIVER CHIPS NEED REPLACED. CHECKSUPPLY SAFETY RES ARE OK AFTER REPLACEING STKs RESET CONVERGENCE. CHANCE BOTH STKs.

Posted on Sep 09, 2008

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Image is showing with yellow & red shades


Ur convergence is dead.Must know how to solders?Replaced convergence ICS and all it resistors.Tries Tv repair World.com,Tvrepairkits.com to buy a convergence kit.Shop will cost u $300 for parts and labors.

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1 Answer

Samsung SP47W3HFX tv blue flickering curved line..


If the lines are slightly curved and stationary on about 2/3 of the screen its either the Blue CRT or the Blue CRT drive board which is having the problem.

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Yes! an idea that the flyback transformer is shot!


Please rate our help to keep the free service online

Aug 29, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

Pcture problem


Replace both STK392-110 convergence IC's with Toshiba or
Sanyo brand...............no cheap junk !!.............T.

Aug 04, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

57H81Toshiba Blue Line not straight


You have a bad convergence output IC in the blue vertical circuit. On the bottom side of the chassis you will see a " V " printed by the heat sink. You will need to unsolder the heat sink and the 20 pins on the IC to remove it. Replace with STK 392-180 (sanyo) if possible or STK 392-150. Looking from the rear the heat sinks are big aluminum finned rectangles. There are 2 heat sinks one marked H and one Marked V. Even though you have a horizontal line your problem is in the vertical IC. Be sure to use a liberal dose of heat sink compound.

Mar 21, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Blue out of focus; casting blue "glow"


Try changing the coolant in the blue tube. Contaminated coolant will give a halo look to the affected tube and you will experience difficulty focusing that color.Phillips/magnavox's blue is the tube most often affected with the contaminated coolant issues.

Mar 01, 2008 | Televison & Video

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Magic focus not working


http://www.hdtvoice.com/voice/showthread.php?t=3736

Feb 17, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Hit 53UWX10BA


convergance ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

Dec 14, 2007 | Hitachi 57SWX20B 57" Rear Projection...

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42H81 touch focus error


check for bad solder connections on the connvergence ics if that dont fix it then replace them

Nov 01, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

Blue out of focus; casting blue "glow"


Be very carefull replacing the fluid as leaks will short stuff out and are messy.

Jun 12, 2007 | Philips Magnavox 51MP392H Rear Projection...

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