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4. Remove the five nuts securing the Controller PCB to the standoffs and remove the Controller PCB.
5. Install the new Controller PCB and secure it in place using the five nuts that was just removed.
CAUTION: Be sure ESD protocols are observed when handling the new Controller PCB, otherwise
severe damage to the Controller PCB may occur.
6. Reconnect all the electrical and fiber optic connections.
7. Verify the three switches (i.e., service, auto cal and service attenuator) on the Controller PCB are in the
proper positions.
8. Turn the laser on and perform the calibration procedures in Section 3 of the Service Manual.
9. Verify the laser is operating properly.
10. Perform the Operation and Safety Procedure in Section 3.
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