Split screen issue

OldFoo · Post by **OldFoo** » Fri Apr 06, 2007 9:48 am

I've just hooked up a Naomi 1 to my astro city (using a capcom i/o) and everything works fine, except, the screen is split in two - i.e. two copies of the same screen split vertically.

I've tried changing the rom and altering DIPSW pin 4 but with no luck.

Any ideas?

OldFoo · Post by **OldFoo** » Fri Apr 06, 2007 3:58 pm

Have you checked the buttons below your panel ?

OldFoo · Post by **OldFoo** » Fri Apr 06, 2007 5:18 pm

Theres also some dips on the Capcom I/O board itself

OldFoo · Post by **OldFoo** » Fri Apr 06, 2007 5:50 pm

RGP wrote:Theres also some dips on the Capcom I/O board itself

That's probably the cause of your problem. There is a switch to the right and left of the Reset push-button. The one to the left toggles between composite and separate horizontal/vertical signaling. Push it to the right (towards reset button).

OldFoo · Post by **OldFoo** » Fri Apr 06, 2007 9:32 pm

I've tried changing the switch on the i/o board itself but that doesn't help - it was already in the position you suggested and switched to the left the screen just rolls.

Any other ideas?

OldFoo · Post by **OldFoo** » Fri Apr 06, 2007 10:14 pm

What game was in it originally? Maybe this cab has a medium-res monitor. :smt017

OldFoo · Post by **OldFoo** » Fri Apr 06, 2007 11:42 pm

Sounds like you are running the mobo at 31khz, when you should be running it at 15khz for your astro monitor. Flip dipswitch #1 on the mobo.

OldFoo · Post by **OldFoo** » Fri Apr 06, 2007 11:46 pm

Wow, I must have skipped over that. In the original question, dip #4 was mentioned. Like Dave said, you toggle resolutions with dip #1.

OldFoo · Post by **OldFoo** » Sat Apr 07, 2007 8:52 am

Cheers - that fixed it