Question about Toshiba TP50H50 50" Rear Projection Television

Toshiba 55H70 convergence problem fixed but now vol.is gone

Toshiba 55H70 had a bad convergence problem but I fixed that now sound is gone it went out while I was in service mode can anyone help me?

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I just posted a question about a convergence problem( juice07 ). I am unable to adjust the red color in the convergence adjustment mode. Did you have a similar problem ?? Please help.

Posted on Apr 13, 2007

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Convergence problem w/55h70. red is ok but can't fix blue. Is there a component or board that is easily replaced?

Yes,U have some basic machanicals skills?The Toshiba Tv convergence board,it call a Hyper board.Try website Ebay.com to buy a refurbish board.This board no longer produced by Toshiba,if can't find it.The Convergence 2 STK ICS,and some or all it resistors,must replaced manually.Must have tools,and knowing how to do basic soldering,to do this.

Apr 06, 2010 | Toshiba 55H70 55" Rear Projection...

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Parts for a Toshiba 55H70

I had the same problem. Different model same chassis. 1 convergence IC overheating was caused by red yoke. NLA at Toshiba. Fortunate customer had an extended warranty and got a new tv.

Jun 23, 2008 | Toshiba 55H70 55" Rear Projection...

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Toshiba 55h70

sounds like the convergence ICs are defective and need to be replaced, they are STK392-110 you can get replacement ICs at the following link that include free instalation instructions.
http://servicemanuals.vstore.ca/

Jun 06, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Toshiba 55h70 Convergence IC

I used the SONY stk180's on my 55h70 and works great...2 years no problem.

Get the real thing though....the knockoffs do fail

I also made sure the contact surfaces between the IC's and the heatsinks were properly cleaned and used "Arctic Silver Thermal Paste" applied in an even thin coat on all contact surface areas.

Mar 20, 2008 | Toshiba 55H70 55" Rear Projection...

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Toshiba 55h70 turns self off

It sounds like your Convergence IC's have gone bad. This is a $300-$600 repair depending on where you live. I have recently changed them myself and it's not that hard if you have common sense and patience. If you do it yourself, you can do it for under $100.
The parts you need are 2 STK392-110 convergence amps and it's best to replace all 6 resistors that are related to the convergence amps as well.
Part numbers on the resistors are 24323129 and you can find then at http://www.vancebaldwin.com/products/?TBA&start=4501

Mar 10, 2008 | Toshiba 55H70 55" Rear Projection...

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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
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

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

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Toshiba 55H81 Blue and Red Only

so you missing the green is is either a bad connection on the green crt or convergence amp ic bad
do this first
http://www.riddledtv.com/repair/journal/Toshiba51H84/index.html
then if that doesnt fix it
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 23, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Projection TV convergence problem

Get it fixed, because this is a simple repair. One of your convergence IC's has burned out and needs to be replaced. A good tech can fix the set in-house in about an hour and a half, and I charge $150 when I fix a set like that but shops in your area will vary so ask around. If you have a satellite receiver or a cable box, the changeover in 2009 should not affect you.

Sep 04, 2007 | Toshiba 55H70 55" Rear Projection...

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Toshiba 55" 55H70 model. Turns OFF, but won't turn ON until I unplug it from the wall first.

sounds like loose connections on the convergance amps ic's
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Aug 22, 2007 | Toshiba 55H70 55" Rear Projection...

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Toshiba 55H70 had convergence problem fixed that now vol.went out

check to make sure that the tv switch on the back panel for surround sound is not in the on position check the customer menu to make sure that the speakers are turned on

Sep 28, 2006 | Toshiba 55H70 55" Rear Projection...

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Convergence problem w/55h70. red is ok but can't fix blue. Is there a component or board that is easily replaced?

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Toshiba TP50H15 Rear projection TV - Sound drops in and out The sound will come on very low and then after a period of time it will "pop" back to normal. Some times it will go very low and again, after a period of time, will pop back to normal. It's not distorted, just very low volume. Is there a PC board with the amp on it that needs to be replaced? Thanks

Nov 17, 2017 | Toshiba TP50H50 50" Rear Projection...

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Toshiba 55H70 convergence problem fixed but now vol.is gone

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Anonymous

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Convergence problem w/55h70. red is ok but can't fix blue. Is there a component or board that is easily replaced?

Parts for a Toshiba 55H70

Toshiba 55h70

Toshiba 55h70 Convergence IC

Toshiba 55h70 turns self off

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.

Toshiba 55H81 Blue and Red Only

Projection TV convergence problem

Toshiba 55" 55H70 model. Turns OFF, but won't turn ON until I unplug it from the wall first.

Toshiba 55H70 had convergence problem fixed that now vol.went out

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TP50H50 50" Rear Projection Television

Convergence problem w/55h70. red is ok but can't fix blue. Is there a component or board that is easily replaced?

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theaterview blinking red light

HOW TO MAKE TV COME ON AND STAY O N WHEN TURNED ON TV CLICKS BACK OFF WHEN CLICKED ON

red light blinks no sound or picture

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Toshiba 55H70 convergence problem fixed but now vol.is gone

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Anonymous

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Convergence problem w/55h70. red is ok but can't fix blue. Is there a component or board that is easily replaced?

Parts for a Toshiba 55H70

Toshiba 55h70

Toshiba 55h70 Convergence IC

Toshiba 55h70 turns self off

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.

Toshiba 55H81 Blue and Red Only

Projection TV convergence problem

Toshiba 55" 55H70 model. Turns OFF, but won't turn ON until I unplug it from the wall first.

Toshiba 55H70 had convergence problem fixed that now vol.went out

Not finding what you are looking for?

TP50H50 50" Rear Projection Television

Convergence problem w/55h70. red is ok but can't fix blue. Is there a component or board that is easily replaced?

Open Questions:

theaterview blinking red light

HOW TO MAKE TV COME ON AND STAY O N WHEN TURNED ON TV CLICKS BACK OFF WHEN CLICKED ON

red light blinks no sound or picture

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