RAM Clearance Procedures Important: RAM clearance should only take place when all else fails, clearing the RAM can result in the machine paying out excessive for a short period of time until it arrives at its set percentage. Shorting of the Battery is NOT advisable Possible reasons for clearing the RAM: Machine frozen and will not clear, erratic behaviour during game play, multiple credits without reason, spurious payouts. Note that any credits or monies in the bank will be cleared
ASTRA 1. Machine power ON 2. Service door open 3. Press & hold down all 3 Hold buttons 4. Place DIL switch 8 on bank 2 to the ON or UP position whilst continuing to hold down the above hold buttons for approx. 10 seconds 5. Return DIL switch 8 to the OFF or DOWN position and then release the hold buttons.
IMPULSE (EPOCH) (Maygay) 1. Open top door and allow to reset 2. Press and hold RED TEST button 3. Press FUNCTION button on MPU (2 bleeps) 4. Release both buttons – now in test 5. Extended test for RAM clearance follow steps 1-3 6. Release FUNCTION button continuing to hold RED button 7. 3 bleeps – now in test 9.2 8. Hold left hand player button (usually CANCEL) and a countdown 5 to 0 will start 9. When 0 reached RAM cleared and audible noise will sound 10. Alternatively, changing the game card will clear
RAM MAYGAY (old type MPU) 1. Hold the COLLECT button whilst pressing RED test switch S3 on the MPU 2. A countdown will commence 9 to 0 3. After reaching 0 RAM will be cleared and an audible noise will sound.
IMPACT (JPM) 1. Switch off machine 2. Change PRICE OF PLAY or JACKPOT on DIL switches. 3. Power ON the machine and allow to reset 4. Power OFF 5. Return DIL switches to original positions 6. Power ON, RAM now clear 7. An alternative method is to short out C13 capacitor adjacent to the battery on the processor card.
BARCREST MPU4 1. Switch off the machine 2. Fit the program card from another MPU4 machine 3. Power up, power down 4. Return Program cards to their original machines 5. RAM now clear
ELECTROCOIN 1. Power down 2. Remove RAM chip (IC60 adjacent to battery) 3. Leave out for approx. 1 minute 4. Replace and power up RAM now clear (verified by machine giving rapid beeps on power up)
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