19
General Trouble Shooting
COMMON PROBLEMS AND CAUSES
Unit does not charge.
Probable causes:
a.
Fuse blown. (Unplug and discharge the unit-Replace fuse.)
b.
No line power to unit. (Check line cord and outlet.)
c.
Unit is on, but will not charge. (Safety thermal detector activated by heavy
use, beyond specified Flashing Rates on page 9.)
d.
Unit completely off, but is connected to power and is turned on. (Safety
thermal switch activated by internal discharge. Decreasing flash power
setting
repeatedly
with the down arrow key or placing the unit into
STANDBY with the remote control
repeatedly
causes the flash power to
discharge through an internal power resistor. If the resistor over-heats, a
thermal switch will open and cut off line power to the unit. After a 3-
minute cool-off period, the power will return. This is a unit-protecting
feature and can be caused by user actions or circuit failure.)
Modeling light does not turn on.
Probable causes:
a.
Lamp turned off. (Press FULL ON/OFF button until LED lights.)
b.
Lamp burned out. (Inspect and replace, when cool. See SERVICE section
of this manual)
Light flashes by itself without apparent reason.
Probable causes:
a.
Defective trigger cord, or trigger cord incorrectly polarized.
b.
Bright light falling on photoslave.
c.
Poor connection in line cord.
d.
Reverse connection on trigger cord connection at camera.
e.
Some radio slaves will cause interference-consult slave manufacturer.
Trigger cord will not flash unit, but charge indicator shows that the system has charged.
Probable causes:
a.
Defective trigger cord.
b.
Defective flashtube. Turn unit off. Wait until cool, then replace flashtube.
(See SERVICE section of this manual)
