Toshiba settings?

[Combwork]

Toshiba 32Z17B. Well, I've truly screwed this up. Picture was good but Para and Trap were both a bit off and linearity was stretched above and below center. Perhaps the set had a different model number in the USA but it's a 30 inch flat screen, all manner of sound settings including 4 Channel Dolby from its own built in amplifier. It's got a user adjustable Tint control but this has no effect on signals from either digibox or DVD player.

I got into the service menu and onto the crosshatch (the set has a built in crosshatch generator) and somehow somewhere must have pressed the wrong button and got into a sub menu. By the time I realised what I'd done I was well beyond the point of no return.

CINEMA, SUPER LIVE and SUBTITLE are OK, but 4:3 and WIDSCREEN are as we say in the U.K., completely and utterly bollixed. On 4:3 and WIDESCREEN trying to find normal controls such as width etc end up with distorted numbers and letters part visible at the top of the screen. I don't recognise any of them; maybe it's still locked into a sub menu. Unplugging the set for a while doesn't cure it; would doing this lock the new settings in?

Does anyone know if there's a manufacturers default setting and if there is, how I get into it? I know it's old technology but in its day it was top line; over £700 new. I bought it second hand for £35 including delivery so I'm not complaining, I'd just like to get it set up properly. It's got a superbly well focused display, almost 3D.

Adjustments are in two sections, changes to 4:3 and WIDESCREEN have minimal effect on the other settings. Luckily I was on WIDESCREEN when I screwed things up.

Any chance of help, or have I got a last generation CRT boat anchor? Damn shame, I hate screwing things up.