sportstation help needed....again

dirt

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this is the vegas 777 pcb playing nba showtime/nfl blitz. does anyone know what the codes are that light up on the cpu board? my machine just resets over and over. all my voltages are good everywhere. its got a new flash drive and chips. ive switched boards with 2 other sets i have i just cant get this thing to start up. it starts to fire up then stops and a 7 lights up on the board. then it goes back to the cycle of starting up. it does this over and over. does anybody know what the 7 means?
 
unfortunately some of the codes are different for each game that board runs. Some codes I remember
2 - Harddrive
8 - Video card (this might be Gauntlet, sometimes its a 5 as well)
IOASIC - security chip wrong or bad
I dont remember what 7 is, it may be the boot rom isnt installed correcly or backwards. The one you got from me was tested so hopefully it installed backwards. Make sure the notch is on the correct side.

Other things to try with boardset are take the whole thing apart into the three boards and cleand the connections between them
I have a test bench boardset that sometimes requires me to put pressure on the center of the sound PCB for it to work since it has a loose connection somewhere. You should try applying pressure to several of the larger chips on the boards and boot up each time and see if its a loose connection or broken trace.
 
good practice with any ribbon cable: always line the striped end up with pin 1/2 and you'll never lose. lol
 
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