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The focus screen assembly is broken. I need to find a replacement

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  • dayanclan Jan 06, 2011

    We own a toshiba cinema series model #TN50V71. A repair man came out to my home and said the focus screen assembly is broken and needs to be replaced. Toshiba no longer makes this part. I need to find another toshiba cinema series tv and get the part from that tv OR find the part somewhere. Do you have any leads/connections on finding this part for me?

    Thank you.

  • dayanclan Jan 15, 2011

    Thefirst expert recommended I buy a new focus screen assembly part. However, Toshiba no longer manufactures this part for this tv (model #TN50V71). I need to find another cinema series tv in this model and get the part from it. I was hoping you all knew of or had connections with other repair technicians who would have this part in their shop, so to speak.

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Sure thing. I assume this is a CRT rear projection tv. Please get me the make and model number of the tv so that I can find you a replacement .

Posted on Jan 15, 2011

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Hello
Focus- screen assembly can be bought seperately. its overall resistance is important when buying a new one. It is easy to reconnect also. If its resistance [measured in MOhms] goes less, the unit will heat up and won't get proper focus and screen voltage out, resulting poor quality picture. It will damge the LOT [Line Output Transformer] also. There will be a number marked on it, indicating its resistance and seperations. After replacing it, you have to adjust both focus and screen voltages to get a well defined picture.
You haven't given any details about your TV, so I can't give you furthermore information in this matter. If you wants more assistance, feel free to get me through Fixya. OK.

Posted on Jan 04, 2011

  • The Knight
    The Knight Jan 16, 2011

    Hello
    Focus Screen assembly will have four lead connections out from it. You can see the two controls are marked ouside, very near to its adjusting knobs, as Focus and Screen as the controls works. Out of these for out connections I said above, two of them will ba apart at th to and bottom, and other twos will be in the middle in two rows. The top one connection, which are one amoung the distant connectons, is meant to input the focus voltage from the Line Out put Transformer. Just connect that wire to it. The other connection, which is one amoung the apart at the bottom must be connected to negative, otherwise calles as earth.
    Out of one connection emerges very near to the foucs knob if meant for foucs voltage out and the other left is meant for screen voltage out, and must be connected to the respective connection to CRT base board.
    NB: When switch on the TV for the first time after connecting the screen focus pack, the secreen controlknowb and the focus control knob on the screen focus packe should be adjusted to its minimum, ie extreem left side of you. After connection is over, set it to needs. OK

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easyab

http://calgaryconvergencerepair.weebly.com/convergence-ics.html


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