7-6 Maintenance and Diagnostics
Diagnostics
Table 7-2 Troubleshooting issues and corrective actions
Possible Causes Corrective Action
Symptom: The controller screen does not light up.
Power is not available to the system. If the power supply fan is off:
a. Verify that the power cord is plugged in.
b. Verify that the power supply fuses are not blown.
Power supply has failed. Call your Spectra-Physics service representative.
Symptom: Low output power.
The chiller is not turned on or there is
poor or no coolant flow.
Verify that the chiller is turned on and its reservoir is full. Make sure all the coolant
fittings are connected. Check the chiller’s filter screen at the pump and clean it if
necessary. Refer to the chiller user’s manual.
The system needs calibration. Press the Optimize button on the Diagnostics tab.
Diode may have degraded. Call your Spectra-Physics service representative.
Symptom: High optical noise.
The chiller is not turned on or there is
poor or no coolant flow.
Verify that the chiller is turned on and its reservoir is full. Make sure all the coolant
fittings are connected. Check the chiller’s filter screen at the pump and clean it if
necessary. Refer to the chiller user’s manual.
The system needs calibration. Press the Optimize button on the Diagnostics tab.
Symptom: Long-term stability/beam pointing is poor.
The laser head is not properly
mounted.
If the laser head appears to be mounted incorrectly, contact your service
representative.
The routing mirrors are not installed
correctly.
If routing mirrors are used as part of the beam delivery setup, ensure that they are
assembled and locked down correctly.
The chiller and power supply must both be either on or off. Do
not run the power supply or chiller without the other component
for more than a few minutes.
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