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bally s5500 safe ram |
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brooker:
hello how i do safe ram in bally s5500 |
Harp:
SafeRAM Clear Procedure For a Complete, Full, or Partial SafeRAM Clear, turn the machine power OFF. Unlock and remove the MPU Assembly. Remove the Main EPROMs from U12 and U15 and replace them with the corresponding Clear Chips. Upon ensuring that the MPU Assembly is firmly seated into the Backplane Board, turn the machine power ON while depressing the appropriate buttons. Complete - Press and hold the PSEUDO COIN and TEST buttons, then switch power ON. When the message CH C displays in WIN PAID, release the PSEUDO COIN and TEST buttons. The CH C message is followed by CL C. Full - Press and hold the PSEUDO COIN button, then switch power ON. When the message CH F appears in WIN PAID, release the PSEUDO COIN button. The CH F message is followed by CL F. Partial - Switch power ON. The message CH P displays in WIN PAID. The CH P message is followed by CL P. If an error was detected during SafeRAM Clear as designated by E C, E F, E P in WIN PAID, repeat the operation. Upon a successful SafeRAM Clear, the button and tower lamps flash. Switch power OFF and replace the SafeRam Clear EPROMs with the corresponding Mains. Replace MPU Assembly and switch machine power ON. The machine will enter a Reel Calibration procedure whereby the home position is recorded in SafeRAM. For tilt-free operation it is important that the procedure completes without interruption |
brooker:
ok thank.... what is the difference between [size=0px] a Complete, Full, or Partial SafeRAMâ„¢ Clear[/size] |
Badbaud:
You always want a full clear otherwise the RAM may still have junk code in it. A partial clear usually means your finger slipped of f one of the buttons you were holding down. If you don't hold down both buttons that is what you usually get. If you are sure both buttons were held down you may want to try swapping the two RAM chips in their sockets and try clearing again. |
brooker:
Ok |
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