TV screen off centered - Toshiba 21T01F

[Tchou]

Dear all,

I built an arcade cocktail machine last year, and I am using a 60in1 PCB. I have connected it to a TV (Toshiba 21T01F) through the SCART, and the screen is off centered - 3cm in lenght, and about 1 in width. I tried to find pot on the TV, or a menu to adjust that, but no way to find out how to do that !

I need some help to center the screen ! Is there a way to access somehow to some kind of "factory mode" to do that ? Or could I add a small pot on the sync (from the jamma connector to the scart), or anything else to adjust the signal ? Or again can I use the VGA output of the card, or convert it back to RGB (but I will lose in quality, right?)?

Thanks for your help !!! The arcade is working just fine, but this little thing is gettting quite anyoing, espcially when I spend some time with friends playing on it !!!

Sylvain