only sony has drivers for their cards./
and ONLY on some OS types and versions.
no OS told by you , so cannot point to them easy.
the PC came new with this card TV tuner.???????
a 2005 made PC
with TV card.
you posted with no OS told
this PC is XP era PC, only, and is and XP virus magnet from H3LL
and if you upgraded the OS , then you learned fast many things fail.
as is normal not asking Sony first if upgraded OS is allowed.
sony just dropped all w7 driver support. 7/2020
sony web site is near impossible to navigate
the driver page is useless.
Unfortunately, there currently are no downloads for this product.
if you google this for drivers, 99% are fully virus infected
that is the door prize , not buying newer PC with real support
NO OS told at all.
we no it came with XP
but what was allowed is nowlost
but seems XP to W7
by their hint above w7 was dropped.
was allowed then , not now. a sony policy, forced EOL.
I'd contact them directly.