Question about Toshiba 50H81 50" Rear Projection Television

4 Answers

Toshiba 50h13 picture shakes/ horizontal issue but OSD is good

I have already replaced the IC chip TA1360N and that did not fix the problem. What is the next step?

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  • missionelect Dec 02, 2008

    Ok, I got this tv fixed now. Through a variety of different sites and through the help of the live chat at fixya I discovered that there are several caps on the board PD0637 that are damaged in some way even though they test ok and are not bulged. They are very small. For the sake of covering my bases I went ahead and replaced all of the 10uf 16v caps on this board. There are 11 in all. Appearently this is a very common issue with that board and I probably didnt need to replace the TA1360N but its in there now so Im not going to fuss with it and it only cost me 8.95 anyway. Also as a note I also wanted to let anyone know that has the same problem that the caps that are bad are surface mount aluminum but I used feed through caps that are 10uf/16v and just bent the leads to the side and soldered them to the surface. You also have to be very careful when removing the old caps that you do not accidently pull off the solder pads also. If you do you have to put them back on and make sure and reconnect the solder trail connected to that pad or find where that pad is supposed to connect to and solder the lead from the new cap directly to the board on that solder trail. Worked ok for me. I had a local circuit board shop do it for me after I started pulling the pads off accidently and they charged me like 50.00 including the caps. Totally worth it. Thanks for all your help.

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Did you test Q510 before replacing it?

Posted on Nov 26, 2008

  • Ginko
    Ginko Nov 26, 2008

    TA1360N is not a capacitor, is the signal and synch processor IC .



    Other contributor should not comment, if they do not know what they are talking about.



    Thanks

    When you have deflection problems on this set, it is usually the TA1360N , or the capacitors on the deflection circuit, always on hyperboard.

    If it is a vertical deflection problem you get up and down tremble and if it is horizontal deflectioni you get picture shaking from side to side.



    There are several 2.2 caps that you should check, but probably you did this already.

    Try changing ppicture format, usually when it is the TA1360N you get shaking intensity changing when you pass for example from PAL to NTSC to composite etc.

    Test all the caps on the hyperboard , on the service manual you find a troubleshooting diagram that tells you what components to test and in what order, when you have a deflection problem with shakey picture.

    If you have the service manual perform also a convergence setup procedure, just in case.







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^ Like he said above the capacitor is blow... If you still have it under warranty I would return it for a replacement.

Basically what a capacitor does is it starts off with full current but it slowly charges up voltage so what i'm guessing what happened is you had too much voltage going through your t.v and it fired it..

but best bet is returning where you bought if warranty is still intact.

Posted on Nov 26, 2008

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Have located the sevice site, if you get no joy with an expert post back

regards

Posted on Nov 26, 2008

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Check out any other capacitor blown or bulged up near to the ic chip .

Posted on Nov 26, 2008

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1 Answer

Location of convergence chips in Toshiba 57H81.


hello if you can use a soldering iron you shouldn't have any problems but you will need to test the resistor in front of the ic and the capacitors at either end of the ic ! the ic usually located to the right hand side of the tv behind the tuner board connected to metal frame called a heatsink 2 big black chip good luck

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