Question about Toshiba 61HX70 61" Rear Projection Television

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Toshiba 61HX70 convergence and calibration

First i had a problem with distorted picture and shoting down - i replaced IC's and now i have another issue with the green and red bowing and not lining up on the screen - solution for both issues are discussed here and it is -- replace the IC's -- but i did just that, neatly and carefully, IC's came from ebay - here
is there anything else i should check/replace, try diferents IC's or does it need calibration?

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thank you all you gurus!

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Posted on Jul 16, 2008

    LORETO LACARON Jul 21, 2008



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A friend bumped into my Toshiba 61HX70. Now the

Convergence is off. A tech can help resolve the issue.

May 27, 2010 | Toshiba 61HX70 61" Rear Projection...

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Toshiba 61hx70 picture bounces and goes in and out of distortion

Most likely bulbs are failing and dirt and dust are caught up in cooling fans and in the projector of the set.

Apr 15, 2010 | Toshiba 61HX70 61" Rear Projection...

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How do i fix my toshiba flat screen 57" tv when it looks like it is 3d

It sounds like the convergence IC's have failed.
Replace the defective Convergence Output IC Part Number 23905094 (STK392-110) using the revised “T” version IC Part Number 23135090 (STK392-110T). When Convergence Output failure is detected, it’s recommended that both IC’s be changed to the “T” type IC version. Inspect the Convergence Output IC’s for the “T” type version.

1420-B Toshiba Dr.
Lebanon, TN 37087
Fax: 615-444-7520
Good Luck, Big Irish.

Nov 22, 2009 | Toshiba 61HX70 61" Rear Projection...

1 Answer

Changing convergence I.C.s in Toshiba 61HX70

the 392-110 used in this set can be replaced with either 392-110 or 392-150----The 150 is a higher current rated IC-------I do a lot of these sets---I would not go to the 160 IC as you may run into problems----also---the 110 should last 3-5 years and the 150 longer---make sure when you change them to check all the protection resistors in front of them and do not forget to put heat sink grease on the new IC's

If this answers your question give me a vote here----I have repaired hundreds of sets with convergence problems---its ok to go up a step or two on the quality of the IC, just don't get carried away---keep it simple

if you need direct help:

Aug 16, 2009 | Toshiba 61HX70 61" Rear Projection...

2 Answers

Toshiba 60HX70 distorted picture, blinking red light

You could have a Power Supply Regulator Problem. Many times these sets will not hold Horizontal sync when there is excessive High Voltage or a problem with the High Voltage Regulation. This is not a problem you want to deal with yourself. I would recommend a Toshiba Repair Facility to come out and diagnose it.
Hope this helps,

Jul 22, 2009 | Toshiba 61HX70 61" Rear Projection...

1 Answer

Pic distorted slightly on left side. news (crawl) on bottom of screen angles down on left side, top of pic seems to angle up also. very minor problem but annoying anyway! pic clarity & color excellent.

Convergence amp ic bad
Sony Convergence

Jan 29, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Blurred picture

Sounds like a resistor in the convergence circuits or covergence amp ICs them selves. Usually the ICs will distort the picture. My guess would be the flame proof resistors near the ICs 1 or 2 may be oen. Let me know if you need anything further.

Jan 26, 2008 | Toshiba 61HX70 61" Rear Projection...

2 Answers

61HX70 61in. terribly distorted picture blinking red power light

Convergence amp ic bad
Or send to

good luck
please mark the post with a fixya

Oct 22, 2007 | Toshiba 61HX70 61" Rear Projection...

1 Answer

Picture red and green not lining up on my Toshiba 61HX70

Repair will require technical and mechanical skills.The red convergence IC will need replacement,which will require the chassis to be removed.After IC change,alignment in the servicer menu may be needed.Go slow--Remember, above all else,do no harm.You have a great tv,so my suggestion is get a senior tech on this one.

Sep 26, 2007 | Toshiba 61HX70 61" Rear Projection...

2 Answers

Toshiba model 61HX70 convergence issue

It is a good possibility you damaged something on that PCB that had the IC's, I like to use an upgraded chip the STK394-160e that is designed for HD signal stresses. I dont know why they ordered the convergence board but I suspect it would have been ok, there are also 2 jumpers that need soldering JW10 and JW50 that supply power to the chips and they REQUIRE resoldering or it will fail again. Might try reseating the RED CRT board, check for cables that you may have unhooked to see if they are not seated in their sockets properly, double check every wire you unhooked, Make sure you used a Silicone Heatsink Compound on to the back of the IC's. I dont know what all you unhooked, but check the wires going between the CRT Boards. Check for cracks in the boards to make sure they werent flexed to much. Good Luck.

Sep 09, 2006 | Toshiba 61HX70 61" Rear Projection...

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