Gasboy Site Controller III Start-Up - Manual (Page 75)

MDE-4375 CFN Series Site Controller III Start-Up Manual · June 2005 Page 63
DC Power Measurement and Adjustment
5 Reconnect the two connectors on the power supply labeled DC OUT and AC IN.
6 Attach the meter probes to R7 and Y1 on the CPU PCB.
7 Turn the AC POWER switch back on.
8 Using a 1/8 inch or smaller plastic, flat blade screwdriver, adjust the power supply to +5 VDC
by turning the screw clockwise to increase voltage, counterclockwise to decrease voltage.
Turn the screw slightly to judge how sensitive the adjustment is.
9 Disconnect the meter probes.
10 Turn the AC POWER switch off and return the power supply to its normal location.
11 Fasten the nuts holding the supply.
12 Turn the AC POWER switch back on.
+12 VDC Measurement
1 Measure the +12 VDC between the red (+) and black (-) wires on the DC OUTPUT connector
of the power supply (
Figure 9-3 ).
The voltage should be +11.00 to +14.00 VDC.
Figure 9-3: ICR +12 VDC Measurement Point
2 Close and lock the unit, and replace the screws on the face.
Be careful not to touch anything but the adjustment screw. High voltage exists at
various points on the supply and the circuit mounted on the rear of the supply.
WARNING