Do I dare attempt to tweak the overscan of my "Zoom1" mode?

Archived from groups: alt.tv.tech.hdtv (More info?)

I've griped before that my TV's "Zoom1" viewing mode, which magnifies a
16x9 box within the 4x3 frame so as to eliminate four-sided
letterboxing, has an incorrect aspect ratio and leaves everybody a bit
stumpy. I recently found how to get into my Samsung's service mode
(Mute 1 8 2 Power, I believe). Somewhere in that triple-digit number
of available adjustments, there must be overscan widths and heights...
and I would be able to square up that view mode. Maybe while I'm at it
I can reduce the overscan on the regular nonzoomed mode. The question
is...... do I dare? Do I have a sufficiently high steel content inside
my scrotum? I tend to think that, as long as I move cautiously and
record the old settings, I probably won't hurt anything........ but
oooh, if I'm wrong about that....

Archived from groups: alt.tv.tech.hdtv (More info?)

Art wrote:

> Go for it, Hope you have the service manual

Nope, no service manual!

> so you can set the registration
> according to your new "hacked" size parameters. Whenever you
> change the physical sizes of the displayed raster it will affect the
> registration of tube based RPTV devices.

This is not RP.

I went in there and I found the picture sizing controls and reduced the
overscan somewhat, but as far as I could see without the manual, there
weren't any separate size parameters for the zoom modes. Oh well.

I also gave it a touch less pincushion while I was in there.

I found a way to increase the gamma for dark movies, but I left it
alone.