Problem with picture when connecting Xbox 360 to Blast City cab

[qhoang]

I’m trying to connect a 360 to my Blast City via vga cable. The 360 is set to 480p and I set the dip switches on the Blast City to 31 kHz vga. The picture I get is divided in the middle (see image). What could be the cause and how do I fix it?

 

[PascalP]

Can you adjust hsync/hhold on your monitor?

 

[qhoang]

Can you adjust hsync/hhold on your monitor?

Not sure. It's a a Nanao MS2930. I've been using this manual (https://wiki.arcadeotaku.com/images/6/65/Sega_Blast_City_Bass_Fishing.pdf). Instructions for adjusting the monitor are on pages 49-50, but I can't say that i understand most of it.

 

[qhoang]

After some googling, I think the monitor might still be in 15 kHz mode. I have to check my dip switches when I get home.

 

[PascalP]

After some googling, I think the monitor might still be in 15 kHz mode. I have to check my dip switches when I get home.

yes it does look like a 31k image on a 15k screen, but i assumed you already set the dips, please verify first

 

[qhoang]

Triple checked the dip switches. They should be right (off, on, on), but I still get the double image.

 

[qhoang]

Solved it! Despite what the manual I found said, off, off, on worked.