Help identify part..

[30W]

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!!

 

[Ol' Duffer]

STR
S6421
SK2312A

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

 

[Murbolt]

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

 

[30W]

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

 

[Bill]

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.

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.

 

[30W]

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.

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