Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: richardp171 on July 04, 2004, 03:27:00 am

Title: upside down monitor screen
Post by: richardp171 on July 04, 2004, 03:27:00 am

i bought a jamma galaga game and the game is up-side down. Does anyone know how to fix this? I was told some wires connecting to the monitor needs to be reversed. Is there anyone who knows whicih one?

thanks

Title: Re:upside down monitor screen
Post by: D_Zoot on July 04, 2004, 10:52:34 am

Yep,  you'll need to swap a couple of wires around on the monitors yoke.

Bob Roberts has some excellent information on his site about this:

http://www.dameon.net/BBBB/yoke.html (http://www.dameon.net/BBBB/yoke.html)

If it's a cab you use other boards in, you should be able to install a switch in the yoke wiring to switch it back and forth,  a quick google search should turn up some diagrams.  But just looking at the pics on Bob's site, it's easy to see what needs to be done.


D

Title: Re:upside down monitor screen
Post by: Ken Layton on July 04, 2004, 11:42:43 am

Also check your game board for either a dipswitch setting or programmable software setting to "invert picture".