DC Power
03/07/03
9-7
CHECKPOINT
+5 VDC Measurement
1.
Turn off power to the console. Remove the four screws from the bottom of the console and
carefully separate the upper housing from the lower housing.
2.
Turn on the power to the console.
3.
On the CPU PCB, measure at the TP1 and TP2 test
points, with the positive (+) probe on TP1 and the
negative (-) probe on TP2. The voltage should be
+5.00 to +5.10 VDC. If the voltage does not fall within
this range, adjustment is necessary. Follow the steps
below to adjust the supply. If the voltage is within
tolerance, skip to step 12.
+5 VDC Adjustment
4.
Turn off the power to the console.
5.
Remove the three screws that hold the power supply cover onto the supply. Remove the
cover.
6.
Attach the meter probes to TP1 and TP2 on the CPU PCB.
7.
Turn the AC POWER switch back on.
CAUTION
Be careful not to touch anything but the adjustment screw. High voltage exists at
various points on the supply.
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 cover to its normal location.
11. Turn the AC POWER switch back on.
+12 VDC Measurement
12. Locate TP3 (+12VDC) on the CPU PCB. Measure the +12 VDC between TP3 (+) and TP2
(gnd) on CPU PCB. The voltage should be +11.00 to +14.00 VDC.
NOTE: This voltage is not adjustable.
-12 VDC Measurement
13. Locate TP4 on the CPU PCB. Measure the -12 VDC between TP4 and TP2 on the CPU
PCB. Voltage should be -11.00 to -14.00 VDC.
NOTE: This voltage is not adjustable.
Summary of Contents for CFN Series
Page 1: ...CFN SERIES SITE CONTROLLER II ISLANDER II START UP MANUAL C01665 GASBOY INTERNATIONAL LLC ...
Page 2: ......
Page 8: ...CFN Series System Contents 4 03 07 03 ...
Page 24: ...CFN Series System 2 12 03 07 03 ...
Page 25: ...Site Information 03 07 03 2 13 ...
Page 26: ...CFN Series System 2 14 03 07 03 ...
Page 38: ...CFN Series System 4 6 03 07 03 ...
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Page 82: ...CFN Series System 9 10 03 07 03 ...
Page 104: ...CFN Series System 12 12 03 07 03 ...
Page 108: ...CFN Series System 13 4 03 07 03 ...