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Bowtie effect I have read online in many places about different things that have been done to fix this but can't find a place where it explains what has to be done.

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Convergance replace STKs

Posted on Mar 13, 2009


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I have a Hitachi F5F110. The red/pink is way out of balance on this TV. I've done everything I can do to try and fix it, including the magic focus built in on the computer and I've also turned...


51F510 SHOULD use two STK392-150 CONVERGENCE integrated circuits. Too much to explain here but I am available on the site as a pay question attention: SD TECH.

sd tech
9_19_2011_11_24_25_pm.jpg

Sep 19, 2011 | Hitachi 51F510 51" Rear Projection...

1 Answer

Rear Projection - Color convergence/bowtie effect


Hi


Thanks for using FixYa. From what you have described it seems that you have to replace the convergence IC and also check the power resistor, if values are not exact you have to replace them. These ICs are located behind the black heat sink; you can see once you open the back off the TV. Also, the convergence board should be checked for cracked solder joints and please make sure to check the resistors as if they are shot the ICs might blow again. All this is only recommended if you have electrical expertise and know how to solder/re-solder components, if not then you should get this done by a professional. The typical cost to get this fixed by a pro is around $250-$300. Please do accept the solution if the issue is resolved or else revert for further assistance.


Thanks
Rylee

Apr 04, 2010 | RCA HD56W66 56" HDTV

3 Answers

RCA HD52W69D with a slight convergence & bowtie problem


Ur convergence it dead.If can't auto adjust must replaced.Tries Tv repair World.com,Tv repair kits.

Nov 04, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

I replaced the convergence board and ICs, but picture stil bowtie


Did you go into the convergence menu and allign the colors? Here's the link where i fixed mine... it's got the remote control button layout to adjust everything.

Jun 23, 2009 | Akai PT5598HD 55" Rear Projection...

1 Answer

Samsung hcn5527w convergance factory reset


Sorry, I just saw this post.
I hope this helps.

Yes there is one more step. You should call the technician out and have them set up the Magic Focus adjustments. I have serviced these televisions for years and I have made this mistake and had to return to fix it. You should not have to pay for a rework. The technician should have done the complete job the first time.

I hope this helps
and good luck.
asnowman

Mar 19, 2009 | Samsung HCN5527W 55" Rear Projection...

1 Answer

Sony KP-53XBR45 convergence


Hey, found the problem. Your Convergence IC chip went bad. Buy one at Bluestar International Components (bluestar-online.com) - order part number STK392-010 for 6.99. I've read that there are two in the system and replacing them both at same time is a good idea...so, order 2. Now, if you are handy, it will require you to open the back of the TV and solder out the old chip and replace with new. If not, then you might as well call a TV repair person and have them fix. However, every place I've called works on a minimum fee for "large screen TVs" - the cheapest I could find in Atlanta was $399 minimum service fee. So, I'm going to risk the home sodering job .... it's a 10 year old TV and as good as it's been to me, if I screw it up, I feel I've gotten my money out of it. Good luck with your repair. My parts are on order.

Oct 15, 2008 | Sony KP-53XBR45 53" Rear Projection...

1 Answer

3d image/sinking effect


This is a convergence problem. Ther are either bad connections at the convergence ICs or the ICs are defective. If you can solder, you can repair this yourself. Try resoldering the pins on the ICs first. If that fails to resolve the problem, replace the ICs. These ICs are large, black and attached to a heat sink. They should be marked STKxxx. Figure on $20 for each one. There will be 2 of them.
Keep us posted.
Dan

Jun 02, 2008 | RCA D52W19 52" Rear Projection Television

1 Answer

Rainbow and Bowtie Effect


go here: this solution works for many sony issues (slight voltage adjustment is all it takes) http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

Sep 17, 2007 | Sony KP-46WT500 46" Rear Projection...

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