9
TROUBLESHOOTING
(continued)
Bridge diodes (CR1-6) fail repeatedly
1. Insufficient air flow; defective blower. Clean, repair, or replace as required.
2. Incorrect replacement diode. Use only the specified rated diode(s).
Reduced light output
1. AC line voltage drop. Check AC line voltage; re-set DC output taps to compensate.
2. Bulb envelope discoloring with normal aging. Increase DC output setting; do not exceed 210
amperes.
3. Faulty xenon bulb. Check for cracked or sagging electrode(s). Replace as required.
4. Leaking xenon bulb. Check for white or bluish discolored envelope, high current and low voltage
(below 48 volts DC). Replace as required.
Elapsed Time Meter fails to record hours
1. Current sensor PC board not in contact with DC lead. PCB must be tie-wrapped to the insulation
of one of the heavy DC output leads from the xenon power supply.
2. Defective component on current sensor PCB. Repair or replace; secure replacement board to DC
lead as noted above.
3. Defective hour meter. Replace as required.
MAINTENANCE
VERY LITTLE MAINTENANCE is required to keep this power supply in good
operating condition. Like most lighting equipment, regularly scheduled cleaning is most important.
1. Remove all accumulated dust and dirt from the rectifier. Vacuum the heat sinks. Make certain all
air inlets and outlets are unobstructed.
2. Regularly check all electrical connections for tightness. Clean, retighten, or replace any discolored
connections or terminals.
3. The blower motors contains sealed bearings and requires no lubrication.
WARNING
Turn off ALL primary AC power before making any adjustments
or performing service procedures. Allow several minutes for
the capacitors to drain stored energy. Allow the power supply
to cool to ambient temperature.
