Question about Toshiba 53H71 53 in. Rear Projection Television

1 Answer

Toshiba 53H71 Convergence Problem

I am trying to help a friend with a problem on this set. From other posts it looks like the STK 392-110's have gone bad. We purchased and downloaded the service manual, but I do not see any reference to these amplifiers in the manual. I have not opened the set yet and I was hoping the manual would direct me to the location of these IC's. I would really appreciate it if someone could tell me where I'll find these IC's in the set.

Thank you.

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  • ohiotom Nov 12, 2007

    I just located a previous post that answered this question. If anyone else has anything to add that would still be great.



    Thank you.

  • ohiotom Nov 12, 2007

    I have one additional question on this topic.



    Are there any concerns with high voltage when removing the main circuit board from this set? Obviously it will be unplugged, but I've been warned about high voltages in the gun circuitry.



    Thanks.

  • ohiotom Nov 16, 2007

    Just to complete this...



    I pulled the signal board and replaced the STK392-110's and the set is working fine.

  • AOgden Nov 25, 2007

    Same blinking LED on my Toshiba TP50H60.

    Is there a way to confirm fualty (shorted) convergence ICs?

    What if pull the connections and HV returns?

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  • 2 Answers

This looks right.

Posted on Nov 19, 2007

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1 Answer

My Toshiba 53H71 rear projection TV's picture looks like double vision with a heavy tint outline how can I fix this???


Hi,
Double vision/ picture problem occurs due to failure of convergence output ICs in rear projection tv and it is common problem of projection tvs.
Please replace convergence output ICs in tv to solve the issue, there is convergence repair kit available for $70 on This Site that has required parts/ ICs, instructions about how to replace ICs etc for a handy person.
Hope these info will help.
Thanks.

Jun 11, 2011 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

Picture curved with red blue green out of sync


You need to replaced convergence IC stk 392-110 located in the deflection board .

Dec 18, 2010 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

How do I fix my Toshiba rear projection tv convergence problems?


Replace both of your STK ICs, they are big black ICs STK392-110s use 120s or 150s CK all of your 1.8 ohm resistors. Mats Electronics has STKs
1-800-628-1118

Jul 01, 2010 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

PT-53WXD63G with same problem...


one of the stk ic's is bad and probably the the resistors controlling it. It is my custom to replace instead of only one

Sep 06, 2009 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

Toshiba 53h71 Blue Shadow/Shade problem


If the shadow is off to one side then it's a convergence adjustment. If it is a blue outline it may be your blue focus. There should be focus knobs behind the speaker cover. They are usually covered by a piece of black tape. The convergence screen should have a prompt for changing the color you are controlling, possibly exit button. Toshiba has several of the older owner manuals on their site as archived models.

Aug 31, 2009 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

53h71 convergence probs


Convergance amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 22, 2008 | Toshiba 53H71 53 in. Rear Projection...

2 Answers

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.

Nov 18, 2007 | Toshiba 43H71 43" Rear Projection...

1 Answer

53H71 Toshiba


Look carefully at metal jumpers feeding b+ to convergence IC's.

Both will need re-soldering or you will keep having problems. 

Let me know how it goes.T.

Oct 04, 2007 | Toshiba 53H71 53 in. Rear Projection...

2 Answers

Changed my stk 392 150 ( both ) did not correct problem - HELP!


there are 3 low ohmage 2 watt resistors
for each stk chip, did you change those?
with-out those it may very well look worse!

Feb 12, 2007 | Toshiba 53H71 53 in. Rear Projection...

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