Arm123
Member
I have a Jamma cab that i am trying to put a slot 1 board with a 150 in 1 cart.
Some strange things are happening...
First i added another wire to the jamma harness to pins A25 and B25 to get the 4th buttons working.
Then tried firing up the game... with a MV1 board. It booted and worked great.
I came back to work the next day and turned on the machine to find it with a video RAM error:
"Video ram error
Address write Read
000080000 5555 5500"
I also smelled some burning... I checked the PSU and all was with in spec, so i swapped it out with another known working MV1 and got the same damn video ram error and burning smell.
Well, obviously there is something wrong with this cab... So i pulled out a MV1B boad and hooked it up to my test rig with the 150 in 1 cart.
I can see the usual boot screen, then goes to black...
I am out of MV1 boards and only have these MV1B boards... Anyone know how can i get the 150 in 1 cart to work on the MV1B boards ?
Some strange things are happening...
First i added another wire to the jamma harness to pins A25 and B25 to get the 4th buttons working.
Then tried firing up the game... with a MV1 board. It booted and worked great.
I came back to work the next day and turned on the machine to find it with a video RAM error:
"Video ram error
Address write Read
000080000 5555 5500"
I also smelled some burning... I checked the PSU and all was with in spec, so i swapped it out with another known working MV1 and got the same damn video ram error and burning smell.
Well, obviously there is something wrong with this cab... So i pulled out a MV1B boad and hooked it up to my test rig with the 150 in 1 cart.
I can see the usual boot screen, then goes to black...
I am out of MV1 boards and only have these MV1B boards... Anyone know how can i get the 150 in 1 cart to work on the MV1B boards ?
