dysproseum
Member
I just bought a Neo Geo MV-1 motherboard on ebay, connected it to a JAMMA cabinet and it's not starting up. Its only outputs garbage characters to the screen.
Notes:
- This cabinet works with other JAMMA PCBs
- The board produces the same issue in other machines where a Neo Geo MV-1 works fine with a JAMMA harness
- Same result with any number of cartridges or without one inserted
- JAMMA harness appears to be wired correctly for all required pins on both systems
- Some continuity testing was done in areas that looked problematic but no issues found
Pics of display output and mobo are shown here:
http://dysproseum.com/transfer/neogeo/
What do you guys recommend I do next?
Notes:
- This cabinet works with other JAMMA PCBs
- The board produces the same issue in other machines where a Neo Geo MV-1 works fine with a JAMMA harness
- Same result with any number of cartridges or without one inserted
- JAMMA harness appears to be wired correctly for all required pins on both systems
- Some continuity testing was done in areas that looked problematic but no issues found
Pics of display output and mobo are shown here:
http://dysproseum.com/transfer/neogeo/
What do you guys recommend I do next?
