Gasboy CFN Series SCII Start-Up Manual - Manual (Page 43)

Jumpers & Switch Settings
03/07/03 5-5
Pump Control EXPMUX CPU Board
1. Unlock and open the front door of the pump control unit.
2. Make sure all override switches are in the AUTO position. See Figure 5-1.
3. Make sure the AC power and battery switches, located in the upper righthand corner of the
power supply are turned OFF (down).
4. Loosen the screw for the card cage section, and swing out the card cage.
5. Remove the pump control EXPMUX CPU board, located in the rear portion of the card cage,
by pulling on the top white tab.
Figure 5-2. EXPMUX CPU Board
6. Locate the K1 jumper patch and install the jumper. This jumper allows battery voltage to the
RAM. It should be installed for normal operation and removed for storage to prevent battery
discharge.