Toshiba 61H70 61" Rear Projection Television Logo

Question about Toshiba 61H70 61" Rear Projection Television

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Screen seems to flip

Powers up,can see a picture (does not flip) looks like pin cushion,can hear sound,but looks like part of screen does the old style horizontal flipping ,then after being on for a few minutes screen goes black and power light blinks. have done hard reset didnt help,also convergence out of line also.tried to adjust convergence with remote doesnt help.

Posted by robert willard on

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Anonymous

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All the symptoms in your tv point to a convergence problem,the unit has 3 amplifiers one for each color,this amplifier IC's need to be replaced and then realign the colors,sometimes just by replacing the Ic's you are able to realign the color with the remote but sometimes they need to be realign from the service menu. You can identify the IC's because they are mounted in heatsinks and by its marking,in the front they have STK--- ---,6 numbers after the letters,their size is about 2.5 " long and 1.5" wide with a row of pins solder to the main board.If you are familiar with tv service this information will help but if you are not too familiar be safe and call for assistance from a servicer.

Posted on Oct 12, 2006

  • Anonymous Oct 12, 2006

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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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