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IF THE HIGH VOLTAGE ARC is audible at the lamphouse, the flash of the bulb is apparent,
but ignition of the bulb is not sustained, the problem area is in the power supply. See the trouble shooting
section of the power supply manual for additional instructions.
IF THE HIGH VOLTAGE ARC is not audible or the flash of the bulb visible, the problem is
in the igniter assembly.
EXCHANGE of components (i.e. known-good igniters, printed circuit boards) between similar
Strong Gladiators IV units to aid in diagnosis of a problem is encouraged. This will not lead to equipment
damage, and will not void equipment warranty.
GLADIATOR IV TROUBLESHOOTING
Bulb fails to ignite.
1.
AC power not on to lamphouse. Turn switching power supply 30 A. circuit breaker ON. If 230 V.AC
not read at 1 & 2, or POWER indicator not glowing, see power supply manual.
2.
Faulty "ON-OFF" switch. Check for voltage at terminal block positions 9 & 10; check for loose
terminals or wiring. Replace if defective.
3.
Low AC source voltage actuating "brownout" protection circuit in xenon power supply.
Bulb fails to ignite, power supply circuit breaker trips.
1.
Slide switch on power supply (near MS receptacle) in incorrect SPOT/CONS position. Place in SPOT
(left) setting.
Bulb fails to ignite; ping audible, bulb flash visible.
1.
Inadequate DC output from xenon power supply. Set power supply output to correct range required
for bulb wattage (120-150 A. for 4000 watt). Do not exceed 150 A.
2.
If bulb flash is visible but faint, check for defective printed circuit board in i gniter. Replace if defective.
3.
Faulty or expired xenon bulb. Replace as required.
Bulb fails to ignite; ping audible, no bulb flash.
1.
Faulty xenon bulb. Check for cracked electrodes or darkened envelope. Replace if defective.
2.
Ignition pulse shorting to ground. Inspect DC leads for burned insulation; dress leads away from
grounded metal components.
3.
Arc gap on igniter PC board too short. Discharge igniter capacitors by shorting across arc gap screws
with insulated-handle screwdriver and widen the opening between the two screw tips.
No high voltage ping audible; LAMP switch in "ON."
1.
Loss of AC control voltage. Check xenon power supply for tripped circuit breaker or open thermal
switch. See power supply manual.
2.
Lamphouse top cover interlock switch open. Top cover must be closed and both latches secured.
3.
Xenon power supply "GO" light not glowing. Check lamphouse covers; see power supply manual.
4.
Little or no DC "No Load" voltage. Measure DC "No Load" voltage at 6 & 7. See power supply manual.
5.
Open fuse F1 (15 A.) on switching power supply primary PC board. SEE POWER SUPPLY MANUAL.
Allow (20) minutes for capacitor discharge before replacing.
6.
Loose spark gap connections or terminals. Repair or replace igniter PC board as required.
7.
Arc gap on igniter PC board too wide. Discharge capacitors; shorten gap between the two screws.
EXERCISE ALL DUE CAUTION WHEN MEASURING
VOLTAGES IN A "POWER ON" CONDITION
XG4/019
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