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Help identify part..

Discussion in 'Electronic Repair' started by 30W, Dec 9, 2004.

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  1. 30W

    30W Guest

    I am working ona toshiba tp4871b with no schematic. Im trying to
    rebuild the vertical circuit changing caps and IC"s. I tried to get a
    schematic from samswebite.com and they called me and told me they dont
    have it. So now im just looking parts up to see what they are to try
    to find the vertical circuitry.

    The part in question is labeled like this:

    STR
    S6421
    SK2312A

    Its mounted vertically and has 8 legs and a massive heat sink.

    Searches on google have turned up nothing in data sheets or the part
    description. Any help is appreciated.

    TIA!!
     
  2. Ol' Duffer

    Ol' Duffer Guest

    STRS6421 is a voltage regulator.
    Unless they are doing something extremely strange,
    it's not the vertical IC.
     
  3. Murbolt

    Murbolt Guest

    Just a guess, maybe you could use a STR6421 instead? Probably easier to
    get....
     
  4. 30W

    30W Guest

    Thanks alot thats help me cross that off my list. Which means my VOT
    has to be on the last PCB inside the TV. Now I just have to figure out
    how to discharge this projection tv. They have the anode wire running
    to a weird position. It looks like the wire can be pulled off of the
    FBT is this possible? If not i guees i will have to take this TV
    apart even more.

    Thanks again
     
  5. Bill

    Bill Guest

    On most sets, the focus/screen divider also serves as a
    bleeder resistor, so it will discharge itself when off
    for a little while. And yes, there will be someplace
    where you can disconnect the anode lead, either at the
    flyback or the distributor.
     
  6. 30W

    30W Guest



    thanks I will try that since the wire looks like it can be pulled off
    just like a spark plug wire.
     
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