Question about Toshiba 43H71 43" Rear Projection Television

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Stk392-110 verses the Stk392 -118

Hi read the stk 392-118 is a better chip ,in what way?

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  • Anonymous Dec 01, 2007

    I have reinstalled the chips and heat sinks ,I'm have harder problem connecting the 2 white panel connectors without bending at least one out the dozen male pins ,how may increase my odds of getting these Green/brown panel board connectors to fit in the white female switch before I tie this thing to my bumper and drag it down the street.I tried to fix 1 of these projectors in the past only to be wakin up by a pickup destroying it 4 in the mornining on trash night .If I cant fix this one i will get the chance to blow it up myself but truthfully fixing it would make me feel alot more satisfied.You guys have got me this far and I do apprecate the advice but I need some one to guide me home .i have spent so much time with my head in the chassis i dont have to look at my camera.To Know something that well with less then 3 hours of this thing running right so far. its not fair. Can I wd/40 the females and open them up with a scew driver to increase my chances of a happy insersion K/y works every time on my girlfriend.There has to be a way to seduce those things to go in at the same time..........................HOW?

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Not a correct sub.......Tosh STK392-110 subs to STK392-110T.

If you want a true upgrade / sub = -110 to STK394-160E.....I use
Hitachi brand = best OEM choice.........

Do not use generics = they are seconds,poor quality,won't last
as long as first quality........................T.

Posted on Nov 25, 2007

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Posted on Jan 02, 2017

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1 Answer

My Mitsubishi tv vs70707 convergence problems. I just replaced my 2 STK convergence chips, and double check my soldering. Still have 3d pictures and can't find pico fuses. Glass fuses are ok.


Need a better picture, but usually fuses are listed as F(number) and would be on the power input to the STK chips. The resistors should be checked as well.

Feb 28, 2015 | Mitsubishi Televison & Video

1 Answer

I have a KDP51ws550 tv that has convergence problems. Flash focus would not work and neither would manual convergence. I replaced the both convergence ICs and checked the pico fuses, turned the unit back...


Check your soldering. Check the vertical power board on the far left when looking from the back. It has fuses on it as well.

Depending on quality of STK chips, they could have been bad or failed right away. Best things is to look at the schematic, verify what colors you can move and see which STK chip is not functioning.

If both chips are not function after replacement, likely a fuse. Be sure to verify the resistors next to the STK chips.

Mar 06, 2011 | Sony Grand WEGA KDP-51WS550 51" Rear...

1 Answer

I have a mitusbishi ws-a65 hd 1080 tv. im having trouble getting the picture to line up with the shodows, its showing double, how can i fix this?


Your Convergence ICs have likely failed. It is very common on rear projections. Replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu.


Use this simple test to verify.
Go to the users menu on the tv.
Look for the converge option to align the red and blue colors

If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section.
If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.

If you can move both in each direction then the problem is something else.


Note if one STK chip fails, you replace both regardless. There may only be one STK chip in this set. If there are two, they will be right next to each other.

Feb 20, 2011 | Mitsubishi Televison & Video

1 Answer

Tv is showing double images, not lining up


Your Convergence ICs have failed. Replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu.


Use this simple test to verify.
Go to the users menu on the tv.
Look for the converge option to align the red and blue colors

If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section.
If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.

If you can move both in each direction then the problem is something else.


Note if one STK chip fails, you replace both regardless.

Feb 20, 2011 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Attention, SD TECH I read your 8/25/10 post on


This model does not use STK CHIPS. Look on back of set where model number is---what is PTK number---ie: PTK 169, OR PTK 195

Sep 01, 2010 | RCA P61960 61" Rear Projection Television

1 Answer

Is there any ic to relpace or change stk 392120


There is another but I do not recommend doing it. You are better to stay with the Original STK-392-120 CHIPS, the real reason they fail is the heat sink grease to transfer heat dries out---

A pair of the chips on Ebay is about 12 dollars.

If you need information about how to replace them let me know.

If this helped you rate this solution as I do this here for FREE.

SD TECH

Dec 01, 2009 | Philips 60PP9202 60" Rear Projection...

1 Answer

TV will only turn onto Standby


Replace your STK convergence Chips 2 of them STK392-020s or 040s use same STK part number that is on your ics.But if they are 110s use 180s if 020s use 040s better ICs.

Dec 19, 2008 | Samsung PCL5415RB 54" Rear Projection...

3 Answers

STK IC 392-110 Chips


am having stk 4392 amp board 2 channel, i want to change this two channel in to one channel. what modofication should i do

Dec 02, 2008 | Toshiba 42H81 42" Rear Projection...

2 Answers

Stk divergent chips


That series usually used the STK 392-110.

It has been upgraded to the STK 392-180. 2 of them.


Mr Bob
www.imageperfection.com

May 11, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

2 Answers

SD533HD5 Blowing Fuses


No lo creo ,ya que el problema puede ser el circuito horizontal checalo o manda la tv a un taller.

Mar 17, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

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