Fusion F300S - Manual (Page 113)

Installation, Operation, and Maintenance Manual # 509252 Rev R 113
Test Point Voltages.
Control Card Removal/Replacement
This unit must be returned to Fusion UV Systems for repair or direct replacement. The
control card cannot be repaired in the field.
1. Remove the six screws from the power supply cover.
2. Remove the cover.
WARNING: Before taking magnetron current
readings, turn the unit off. Check resistance
between “MAG CURRENT” test points.
Reading should be approximately 40K Ohms.
If this value is not correct, do not attempt
current reading. Damage could result to the
meter or personnel injury could result. Contact
Fusion UV Systems Customer Service if 40K
Ohms reading is not obtained.
After checking resistance, be sure to switch
the meter to correct setting for DC voltage
reading.
Table 21. Operating Voltages
Test Points
Status
Standby Lamp On
Photoresistor Test (TP101 and TP102) 12 VDC 0-6 VDC
Magnetron Current Test MAG A - COM
(TP105 and TP106) 0 0.650-0.750 VDC
WARNING: Disconnect all power sources
before servicing high voltage components.