--- Tony Duell <ard_at_p850ug1.demon.co.uk> wrote:
> > Given nothing but the set; no doc of any kind (have you Googled for a
>
> I assume there's no schematic stuck inside the set (stranger things have
> happened...)
Nope. I'd be nice, though.
> If you're lucky, the video output stage will be discrete components and
> easy to hack. If you're unlucky it'll be hidden inside a 'jungle' IC...
>
> You also need to get the sync signals in somehow. If you're lucky
> (again!), you will find a point at the input of the video amplifier that
> also feeds the sync separator -- which means you can feed in composite
> video with no problems. After all, the signal at the output of the video
> detector stage _is_ composite video, so the set must be capable of
> displaying such a signal. The problem comes when this point only exists
> within an IC.
If it helps, the tuner is on a seperate board with a 4-wire cable to
the main board. There are a couple of tunable elements (cap, coil),
a few caps, diodes and a single IC - CD2003GP
> > The usual Cautionary Parables about working on naked TVs apply.
> zzzzap!
Naturally.
> Be very careful if you work on mains-only sets...
This one is internal batteries or 12V car plug or a 12VDC wall wart.
Of course, the internal voltages are still typical for CRT use, but
no hot-chassis here.
-ethan
Received on Sun Mar 30 2003 - 17:30:01 BST