Fixing Overscan on a Sanyo Vizon LCD TV

After noticing excessive overscan while watching Netflix on my PS3, I decided to look for my Sanyo Vizon's hidden service menu. Before you get started, you must understand that this could potentially damage your TV. I'm simply providing information about a product, so if you break something, that is your own fault ^.^'

Here's how to reduce the overscan to (almost) zero.

1) Set your TV to an analog channel with some input (like cable).

2) Turn the volume down so that it's audible, but won't destroy your ears if it happens to turn to static noise.

3) Unplug your TV.

4) Hold the Channel Down button on your TV.

5) Plug it in while holding Channel Down.

6) A black menu should appear over the standard signal (whatever was on TV)

7) You can use your remote to cycle through the parameters*. Don't mess around! You could brick your tv if you fuck up the horizontal sync or any other critical values!

8) Go to parameter # 25 (letterBoxOvSc), and set the value to 1**.

9) Go to the following parameters, and set the value as 1:

- #54 (sidebarOvSc)

- #55 (leftOvSc)

- #56 (rightOvSc)

- #57 (topOvSc)

- #58 (bottomOvSc)

Now, go try whatever was messed up before to see if the picture is fixed! :)

*parameter numbers and names might differ depending on model numbers. Just use common sense and try to find the right one. If you can't find the right one, don't just guess! Not unless you can afford a new tv, that is.

**I set 1 instead of 0 because you may experience some garbage on the edge of the screen otherwise. Move the number up a bit if you still get garbage.

After notes:

There are many other parameters that, in my opinion, SHOULD be in the standard menu but aren't.

You can flip through and find them yourself as they're pretty clearly labeled.

These include bass, treble, and balance adjustments.

You can also choose from 7 different fonts and change the font sizes.

It's also important to note that the separate video modes don't have their own settings. Instead, they are calculated as variation of the standard settings. So if you look for (HDMILeftOvScDiff) or something similar, you'll notice it has a high number (1000 to -1000 I think). So if you get garbage in analog mode but not in HDMI mode, you can try adjusting the HDMI to a negative number to compensate.