Question about Toshiba 57H81 57" Rear Projection Television

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TOUCH FOCUS ERROR

I AM GETTING A TOUCH FOCUS ERROR. WHEN THE TELEVISION SCANS THE COLOR BLUE IT CANNOT GET THE LOWER LINE TO STRAIGHTEN AND THEN THE TOUCH FOCUS ERROR APPEARS. IF I TRY TO ADJUST THE COLORS MANUALLY THE COLOR BLUE WILL NOT GET CLOSE ENOUGH TO THE +. ANY SUGGESTIONS?

 

 

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  • Anonymous Nov 19, 2007

    i am getting touch focus error the red colour is off . Please help

  • paliza Dec 25, 2007

    I get an Autofocus Error, Red will not allow to come down. It has a curved look to it.  What would be an initial cost?

  • Anonymous Mar 21, 2008

    When I activate the auto focus the TV the process does fine until it gets to Horizontal Blue. The top and bottm blue line are not straight and I get an error message.

  • donaldgordon Aug 13, 2008

    red line curved on the left lower side, says touch focus error



  • Anonymous Jan 19, 2009

    My 57H80 TV is distorted when first turned on, and takes about 10 minutes to somewhat straighten out. But the the convergence is so bad when you try to adjust with the remote, the center + stays focused but the outer number perimeters don't even come close to converge and blend together.

    The colors on the left and right of the screen lookm like a pair of 3-D glasses. The touch screen button comes up with touch error. The Tv is only 4 years old. Is this the end of line for the Toshiba? How much and can it be fixed? I paid a small fortune for it, and expected more use than this?

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The convergence IC`s need to be replaced and the related low ohm resistors need to be checked for proper value.

Posted on Nov 25, 2007

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1 Answer

My Toshiba 42H83 has developed a color problem. The color blue is about an inch off the other colors, the picture looks like a 3d movie without the glasses. I have used the touch focus button on the...


Alot of rear projection t.v.'s have a convergence option in the menu on the t.v. There you can set the try to set the colors back how their supposed to. Mine has a cross in the middle of the screen and you just have to try to get all 3 colors to line up. Unfortunately, the actual lens inside mine has to be aligned so it doesnt work. Just something to try though, hope it helps.

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1 Answer

Trying to manually fix color convergence on Toshiba 57H81


The convergence ICs and the six 1.8 ohm 1watt resistors need to be replaced. You can get the convergence repair kit for your model at www.tvrepairworld.com which has the Two Convergence ICs and the six resistors plus the CD with instructions on how to do the repair.

Dec 02, 2009 | Toshiba 57H81 57" Rear Projection...

1 Answer

Vertical blue line not in vocus


It sounds like you lost a convergence amplifier. There is also the possibility that a resistor on the main circuit board that goes to the horizontal control circuit for the blue CRT/deflection yoke may have a cold solder joint. These circuits generate a considerable amount of heat and can weaken solder joints over time. Try bumping the side of the television and see if the blue line changes or if the blue color returns. If so, then it may very well be a cold solder joint that needs to be touched up. This is one of the first things that an electronic tech tests for - sounds crazy but I've fixed literally thousands of televisions this way. Good luck.

Jan 05, 2009 | Toshiba 57H81 57" Rear Projection...

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...

2 Answers

TOUCH FOCUS ERROR on Projection Toshiba TV


My 57H81 won't converge, plus I get the "touch focus error" message. I could get manual convergence of blue, but not red. Plus, during touch focus the red would not move horizontally

Nov 25, 2007 | Toshiba 57H81 57" Rear Projection...

1 Answer

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

Convergence problem


sounds like bad solder connections on convergance ic solder then if the problem still there replac ic

Oct 24, 2006 | Toshiba 57HX81 57" Rear Projection...

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