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This step MUST BE PERFORMED to prevent contamination from being dragged and depos-
ited inside the cavity flow tube.
d. Carefully slide the flashlamp out of the cavity assembly in the direction of the black wire.
Take caution to locate the O-rings. Note the position of the O-ring on the black end of the old
flashlamp. Locate the loose O-ring and place it on the new flashlamp at approximately the
same location as the old flashlamp. Remove the other O-ring from the old flashlamp.
7. Install the new flashlamp.
a. Carefully straighten the red wire on the new flashlamp and clean the entire flashlamp with metha-
nol and lens tissue. Be sure to wipe the flashlamp several times and each time using a new lens tissue
paper.
b. Carefully insert the red wire into the cavity assembly until the flashlamp is visually centered within
the cavity.
NOTE: The brick are bi-directional. Install the remaining O-ring on the flashlamp.
c. Install the insulated end blocks keeping the flashlamp visually centered within the cavity assembly.
d. Replace the cavity assembly on the laser pod and attach the flashlamp wires to the terminal block.
8. Add coolant and check for leaks, specifically in the cavity assembly area.
9. Perform the “Resonator” and “Fiber” alignment procedures, then check the flashlamp calibration val-
ues.
10. Reinstall all the covers and front door.
5.6.2 Controller PCB Replacement
1. Turn the system off and disconnect the AC power source.
2. Open the front cover. (Refer to Fig. 5.1).
3. Remove all electrical and fiber optic connections from the Controller PCB.