Question about Toshiba 43H71 43" Rear Projection Television

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How to adjust red blue green

I have a service manual for 43h71 but can not totaly understand how to get blue red and green together to properly converge colors. Please help with proper way to do remote for proper alignment, Thanks

Posted by clay hagan on

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Anonymous

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One or both of the convergence IC's has probably failed and will need to be replaced. Check the circuitry around them as well for bad fusable resistors etc. The drive settings won't help on a convergence issue.

Posted on Mar 24, 2007

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marcial nasi

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If ur in service mode already..turn down all drive.green first turn it up until the desired intensity is achieve.then blue all the way until it almost blend the green.u must not see one color either too much green or blue.turn up red now,let it blend until u see a perfect black and white.note:make sure that the color level is set to minimum and tint to center. ihope i help u..

Posted on Mar 24, 2007

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Related Questions:

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1answer

The tv has red images, I cannot get the red convergence line vertically to straighten, it is squiggly, the horizontal is straight, and the blue and green lines are both okay

the 43h71 has a pair of convergence ics that commonly go bad and cause this problem. replace original stk392-110 with stk392-120. the upgrades have a collector rated at 4 amps vs the 110's 3 amps and should be more reliable.

also know that they hyperboard in this set can cause squiggly lines throughout but will not affect the convergence.
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Replace both STK392-110 Convergence IC's with Toshiba or Sanyo quality................No cheap IC's !!!......................T.
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Replace both STK392-110 convergence IC's with Toshiba or
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green is not adjustable only through the service menu. if the green yoke hasnt been turned then you most likely have a faulty capacitor or resistor in the green convergence circuits causeing the green projectors image to be skewed. without the service manual and some tv repair troubleshooting skills you will probaly need to call a tv tech
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you can replace IC stk 392-110 (one or all) and tray to adjust R_G_B
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43H71 Toshiba

Change both IC's at same time is SOP ( standard operating
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Use Toshiba STK392-110T X 2 for exact replacement..........T.
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43H71 43 in

Look up and read about the convergence amplifiers on this website. I just helped a friend repair his 53H71. We replaced the STK392-110 IC's on the signal board. The shop quoted him $400 for the repair. We replaced them for $35. If you're not comfortable soldering then this might not be a good repair for you to try. Good luck.
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Green and red shadows

try adjusting the color purity knob.one by one,or if it is really bad tube u can extend it by rejuvinating it.
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