Quick follow up. I have the exact same problem with both machines.
SafeRAMâ„¢ Clear
A SafeRAMâ„¢ Clear erases information stored within
battery-backed random access memory (RAM). A
Complete SafeRAMâ„¢ Clear is essential before the
first use, when EPROMs are changed, or if game
memory becomes corrupted.
There are three levels of SafeRAMâ„¢ Clear:
• Complete — Erases and reformats SafeRAM™.
Game options are restored to factory default. All
counters (soft meters) reset to zero.
• Full — Resets all counters to zero except the
SafeRAMâ„¢ Clear counters. Game options are
restored to factory default.
• Partial — Zeros all counters except SafeRAM™
Clear. All game configurations defined by DIP
switches, jumper selections and game options are
preserved.
For a Complete, Full, or Partial SafeRAMâ„¢ Clear, turn
the machine power OFF. Unlock and remove the MPU
assembly. If SafeRAMâ„¢ Clear EPROMs are required,
remove the Main EPROMs from U28 and U43 and
replace them with the corresponding clear chips.
After 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 SafeRAMâ„¢ Clear as
designated by E C, E F, E P in WIN PAID, repeat the
operation.
Upon a successful SafeRAMâ„¢ Clear, the button and
tower lamps flash. Switch power OFF and replace the
SafeRAMâ„¢ Clear EPROMs with the Mains,
Replace the MPU assembly and switch machine
power ON. The machine will enter a Reel Calibration
Procedure whereby the home position is recorded in
SafeRAMâ„¢. For tilt-free operation, it is important that
the procedure completes without interruption.
Real Time Clock (RTC)
If U53 is populated with a Dallas Timekeeper IC, an
opportunity to change the settings occurs after a
Complete SafeRAMâ„¢ Clear. Set the date using the
SPIN button to increment the number in the flashing
field (mm/dd/yy/day-of-the-week; 0=Sunday) and the
BET MAX button to move to the next field. Set the time
(hh/mm/ss) using the same method as the date. Press
CHANGE to confirm changes and exit.