Question about Hitachi UltraVision CineForm 55VG825 55" HDTV

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The colors or green red blue is out of sink withe eacher the don't go in a stright line but curved oppisit of eacher

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It is definitely a case of bad convergence IC. You have to replace the 2 STK ICs and any nearby failed resistors to solve this problem. Note that this repair requires good soldering skills and previous experience in working on electronics as the set holds potentially lethal voltages for several days after its turned off. If you have the above skills and want to do it yourself then let me know and I will give you clear instructions and guide you with the repair.

Posted on Aug 05, 2010

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Posted on Jan 02, 2017

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2 Answers

Projection HDTV Pansonic 47" Curving blue and green colors on top and bottom of screen.


You will need to replace your two convergence I.C.s.They are two large IC mounted on a large aluminum heat sink.Replace both,look for any burned resistors near them,replace those if needed,and readjust your convergence. Good Luck

Let me know if you need any further help

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1 Answer

Letters and numbers are 3d and curved picture


Hello

red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..

Angel
Thanks...

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2 Answers

Green colour and curved lines


PLEASE POST MODEL # for an accurate response!
But it sounds like a convergence problem.

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1 Answer

Red green and blue lines rca 52' rear proj.


your convergence powert supply is not working-
replace the supply or repair it

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1 Answer

Pcture problem


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

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2 Answers

Color misaligned in RCA P52927


Hi,sounds like the convergence power supply reg.has failed,when this ic fails the adj. projection tv leaves the menu,this ic is located on the board above the board with 6 heat sinks on it mounted on the black plastic,its the ic that is heawt sinked on this board,part number is 215530

Nov 06, 2007 | RCA P52926 52" Rear Projection Television

1 Answer

Uh oh... the colors are curved and wacky


replace the amplifier IC chips for the convergence.  part # stk392-???  could be from 040 to 120..  90% chance that'll fix it.

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1 Answer

3 curved lines top & bottom/blurred picture


This indicates a convergence problem..convergence power supply probally.. however ive seen 2 other cuicits cause this ..

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