Atari CAT box to rent

mcandrewsoun

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Long shot I know..
Since I cant find a gravitar Bd, Id like to repair mine, but this thing is becoming a pain..Hoping someone would be willing to let me rent a CAT box for a fairly reasonable price so I can troubleshoot it. Probably not worth it, but heck I thought Id ask.
 
Long shot I know..
Since I cant find a gravitar Bd, Id like to repair mine, but this thing is becoming a pain..Hoping someone would be willing to let me rent a CAT box for a fairly reasonable price so I can troubleshoot it. Probably not worth it, but heck I thought Id ask.

Hey- what's your board doing? Any output at all? Have you looked at the outputs with an oscilloscope?

Have you done any troubleshooting on it?
RAM? EPROMS? CPU? Watchdog? clock?
 
gravitar

i sent my board to bill's video service in plainville mass. he had it fixed in no time! his number is 1-508-695-8891. tell him mike from california sent you. hope this helps!!
 
My board is
1. watchdoggin.. not consitantly, though sometimes it will boot.
2. No output.. The vector roms are getting addressing data, and Im seeing data bus activity but looking at all of the vector shifting logic, op codes, etc, all dead. I have replaced several 74xx chips that appeared to be not working, and nothing has helped.
 
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