Picture upside down

dyno

Well-known member
Joined
Apr 11, 2009
Messages
1,644
Reaction score
81
Location
Lower Mainland, Britsh Columbia
I picked up a cabinet that has mania challenge in it. I also have a mat mania pcb, both games have the same pinout. When Mania challenge is in the cabinet the picture is fine but when I put mat mania in the cabinet the picture is upside down, I checked the dipswitch setting on mat mania becsuse it has a setting for table or upright and the switch is in the upright position. Why would the mania challenge picture be fine but the mat mania picture be upside down since they have the same pinout? Any ideas?
 
I believe those are two different compaines, right? There's no standard way to do the screen, some games are just backwards from others. A lot of games had a dipswitch setting to reverse it, I know you checked on the one but check on the other one to see if it's set backwards.
 
It's possible that whichever bit controls a register in the VDP responsible for flipping the image is stuck as a result of a hardware problem... you may want to look over the PCB for scratched traces or other problems that may be causing this.
 
Thanks LyonsArcade, flipped dipswitch 8 and the picture is fine:) The dipswitch settings I found didn't say that dip 8 flips the picture, next time I will look at the dipswitch settings in the manual. Thanks again!
 
Back
Top Bottom