90
| Troubleshooting
|
Ultra
Version M 22-April-2012
Problem
Possible Cause
Solution/Suggestion
Q-Switching:
External Q-Switch
Trigger input does not
cause Q-Switch to fire
.
Q-Switch is not enabled.
Verify that both the “Q-Switch start” LED and the “flashlamp start” LED indicators on the Remote
Box are illuminated.
External trigger signal
does not meet the
specified requirements.
The signal generator may not be set up to drive the ICE450 50
Ω
Trigger Signal Requirements on page 52
.
Frequency setting
only adjusts within a
±10% range
You have purchased a
GRM Laser Head
For GRM Laser Heads, the frequency is set at the factory. It can only be adjusted to ± 10% of the
set value. See your system’s
for more information.
No Simmer
No Interlocks
Faulty laser I/O cable
•
Verify laser I/O cable connectors are fully inserted and the screws securing them are
tightened.
•
Visually inspect the high-current contacts on both ends of the laser I/O cable for carbon film
or pits caused by poor connector insertion and arcing.
ICE450 does not
trigger in External
mode
Incorrect signal generator
settings
External Trigger Signal Requirements on page 52
Poor signal output
from Sync BNCs
(Lamp out & Q-Sw
out)
Incorrect termination
Output signals must be 50
Ω
terminated for optimal pulse shape and faster edges.
Coolant leak
DI Cartridge installation
Verify that the DI cartridge is correctly in place and its fittings are fully inserted.
Laser Head o-rings
Inspect o-rings on coolant line connectors at Laser Head for damage and replace if necessary
ICE450 does not
operate in horizontal
position.
Incorrect side is down
Verify that the ICE450 is oriented with the coolant fill port lower than the vent port.
Verify that the coolant level is OK and fill if necessary.
NOTE: Contact Quantel USA for any repair actions necessary beyond those described in this manual. Attempts to
adjust, repair or replace any portion of the laser system may damage the system and void the warranty
