Question about Toshiba 61H70 61" Rear Projection Television

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Toshiba 61h70 Picture Problems

Hello,

I have a Toshiba 61h70 TheaterView HD Projection TV, and was recently having some slight convergence issues (red was out of alignment and could not be adjusted). So I researched and found that the IC’s (STK392-110) needed to be replaced. I initially purchased them on eBay, to later find out that they were cheap clones and did not work (they made the convergence worse, actually). I then purchased 100% Sanyo IC’s from a reputable dealer and replaced the IC’s again. Once finished, I then entered the service menu and adjusted the convergence alignment. Once the alignment was perfect, I hooked back up the TV antenna, the DVD player (composite), and the S-video from my computer. The convergence is fine, but now I’m having a totally different issue – the video is “scrolling”. The menus will show up fine, however any incoming video inputs will show up okay for a split-second, but will then flash and the picture starts to scroll in different directions. This happens with any of the video inputs. I checked and changed all the service menu items to factory defaults, however this had no effect. I have pasted a link below to a short video that illustrates the issue that I’m having. Please note that the video starts off with a black screen, showing the “input” menu, and then I selected the ‘TV input’ and changed the channels. You will see the picture fine for a moment when the channel is first changed, but then the picture will start to scroll. Any ideas of what would be causing this? And how can I correct the issue? I’m not a TV repair expert, so I’m not even sure where to start. Any help would be greatly appreciated.

http://s75.photobucket.com/albums/i303/hybrydmike/?action=view¤t=TV_Troubles.flv

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  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Convergence IC STK392-110 vs STK392-110T

If you are removing a defective chip, can you just cut the pins carefully with a wire cutter and later apply heat to pull them off?

J.

Posted on Jan 29, 2008

  • 15 Answers

SOURCE: 3d look on mitsubishi ws-55511

Hi bluemags,

It is true that you should use a higher power I.C., I do that all the time. However, the one to use is the STK392-120. This one is rated at 5 Amps unlike the STK392-110, 150, which are both rated at 3 Amps. I have not checked the data sheet on the 180. They are all OEM, since Sanyo designed them all. Beware of generic knockoffs not made by Sanyo. The generic I.C.s do not have the quality as the Sanyo originals.

Best Regards,

MyTvGuy

Posted on Feb 10, 2008

  • 2315 Answers

SOURCE: Toshiba 61H70

Does it look like a 3D image?
Would you be able to post a picture of the TV with the mention lines?

Posted on Aug 16, 2008

  • 159 Answers

SOURCE: Problems after convergance IC fix

try not to mix areas in the tv chasing several problems.

  1. Lets get back: i hope the tv was doing fine before to start digging into it ( was it?) Was the tv complete tested before to make sure the buttons were working all and the audio was there. I mean each part of your tv has different solutions:
Think you have an animal with several heads now:
  • the buttons in the panel (some working is good! some others can be replace and there it go all panel works)
  • audio mute (maybe no signal and automatic mute is there. or maybe really audio is damaged. Leave it at the end is another area.
  • Touch focus is the the program controlling convergence digitally talking. If the tv is not yet fix with the amplifiers then the problem still landed in another area not in the digital control.
Finally Start over! Get into de convergence and get your three tubes at least close to convergence (forget auto focus now) three screens together or almost but three rectangules with white noise. No having GUI you mean OSD (i gess) (on screen display) channels appearing when you push that button or audio level line or menu letters (several buttons have to be touch to make sure of there is not OSD.

if the tv has not white noise the screens are without convergence. you are digging in a set with maybe 5 problems the three you told me plus the other posibilities im gessing and i hope you don't have. So slow down with the repair and try step by step. bye now.

Posted on Apr 17, 2009

  • 167 Answers

SOURCE: Toshiba 50HX81 only showing black and white

I bet it's a DLP TV correct?
This symptom would indicate that the color wheel has flown apart. Which results in a monochrome only image.
Color wheels are expensive and need to be replaced by a qualified service person.

Posted on Dec 27, 2009

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Theaterview suggests a rear projection--in that case it most likely is in the convergence circuit--unsolder chips (convergence) and see if set turns on.

Some of their regular TV sets (picture tube) if the light is just blinking means the same thing=shutdown because of a short/problem but a model number would tell me which you have.

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Toshiba 61H70


Does it look like a 3D image?
Would you be able to post a picture of the TV with the mention lines?

Aug 16, 2008 | Toshiba 61H70 61" Rear Projection...

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Toshiba 61H70 Weird Convergence Issue?


They may have gotten some cheap convergence ICs, thats a real possibility. I would recommend switching the two origional STK392-110 with some STK392-150 they will run alot cooler and last alot longer. Just use a good coating of heat sink compound on the back of the ICs. I will post a link where you can get top quality Convergence ICs and they provide free instalation instructions with pictures so you can do the job yourself in under an hour and save quite a bit of money. Heres the link.
http://servicemanuals.vstore.ca/

May 22, 2008 | Toshiba 61H70 61" Rear Projection...

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Your set needs to be realigned in each format, then settings saved

May 06, 2008 | Toshiba 61H70 61" Rear Projection...

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Need Blue Lamp


I would think you would have to get one in America most likely at bestbuy or Circuit City. Hope this helps. =)

Feb 25, 2008 | Toshiba 61H70 61" Rear Projection...

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Replaced Ic's and now tv power just blinks


Josh, Acme only sells the good stuff, I have replaced a thousand 110`s with 150`s with no problems, so I would say that you either put a plug back in the wrong place or one of the power supplies to the IC`s is missing, check your chemical fuses in the power supply section of the tv, you may have one that`s open, if the convergence circuit doesn`t operate the set will go into immediate shutdown, hope this helps, BMW Rider

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