Question about Toshiba 61H70 61" Rear Projection Television

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Jittering screen Our rear projection Toshiba's picture has started to jitter and shake. We're also getting double picture on the right part of the screen. We'd appreciate your help. Thanks.

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  • dawidshalom Mar 24, 2008

    my zenith tv screen is jittering horizontally,when i turn it on; the top part of the screen and the bottom part is both blue,and the middle part is the only part showing jittery.after a few minutes i will get the full screen,but it jitters back and forth.

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Chassis will need to be pulled by a skilled technician.Some specific area hand-soldering is needed and the STK convergence IC's need changing w/OEM or better quality parts.You have a good set worthy of repair.

Posted on Sep 26, 2007

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Posted on Jan 02, 2017

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How old is the screen? if more than 5 years, the circuitry can go bad. I had this with one of mine, it would jitter for about 10 mins before it warmed up. Just get a new one, they are cheap as chips

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Depending on your Toshiba model this may be an issue with the hypermodule. When it fails it will make the TV zig zag looking. One quick test is to see if your picture-in-picture window looks normal. If so the hypermodule is the issue. You can google Z1234TV to locate parts.

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This is essentially a convergence problem and will continue to get worse. If you can solder, try resoldering the pins on the convergence ICs. If that fails to resolve the problem, replace the ICs. These are large black ICs attached to a heatsink and should be marked STKxxx.

Keep us posted on your progress.

Dan

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I cured the problem by placing a fan in front of the screen that not only blows directly on the LCD screen, but also air underneath the screen providing circulation around the entire unit. Apparently the LCD screen is overheating causing it to "trip". I can stop the blower after about 20 minutes and there is no problem.

I will never buy another Westinghouse product again as long as I live.

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the jittering will get worse with on time this tv needs a hyper module and some are still available for replacement id get a new hyper module or have it rebuilt needs caps in the module forget about doing this repair yourself just like the guy on csi miami "they never listen"

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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

Feb 27, 2017 | Toshiba 61H70 61" Rear Projection...

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