Question about Toshiba TP50H95 50" Rear Projection Television

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Toshiba TP50H95 The above model tv will work just fine and then it will all of a sudden get curved lined running accross the screen. They are comma shapped they start at the bottom left and arc up and across to the bottom right. Most of the time you can see the 3 colors seperatly. It used to happen when the furnace kicked on and I thought I was getting dirty power. I hooked it to a different power and still had the same issue. Now that the weather is warmer and the furnace is not running it still does it. Do you know what the problem could be. I have adjusted the projectors and that is fine. If you want you can email me direct also. I am not sure if I will be able to find where it will be posted on the website. Thanks! crazy4quads@hotmail.com

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  • Bryan Apr 22, 2008

    I have looking online for a service manual and I can not find one. If anyone has one could you please post it or send it to me. Thanks!!!!

  • Bryan Apr 23, 2008

    I will take a look at that and get back to you, thanks! It seems like the tv works great when it is first turned on and then gets worse when it warms up. Do you think I should install a cooling fan after I make the repair you suggest? It sits cross-ways in the corner of the room so it is not tight to the wall. ?? Thanks again.



    PS the manual you sent was a owners manual, do you have a service manual?

  • Bryan May 07, 2008

    You were spot on! I checked that out on Saturday and found 2 post's that needed to be re-soldered. Looks like they had been hit once before by someone. Not sure but I think I could have soldered them by going through the bottom vent holes and not disassembled the TV. Well so far so good, it has been working great. Thanks for the great info and the manuals!!!! YOU DA MAN!!!!!

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It sounds like intermittent loss of convergence and you should be able to cure that by taking a look at the convergence amps and locating one or more ring-cracked solder connections. Resoldering them should fix the problem. The amps are two STK392-110 Sanyo Ic's mounted to an aluminum heat sink. Remove that board and visually inspect where they solder to the foil side of the board.
Good Luck!
Bill
PS I'll send the manual via Pando to your crazy4quads@hotmail.com address. You'll need Pando to download it and a PDF reader to view it. Both are free downloads if you don't already have them....

Posted on Apr 23, 2008

  • William Rayburn
    William Rayburn Apr 24, 2008

    On it's way - - along with the training manual..

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