Advertisement
95307-000-01 6/87
RET-041 Instructions
page 11
Field Alignment and Performance Verification
- Card #1 F10
Use the following rocedure to align and verify erformance of Card #1F1O after the card has
been re aired.
This rocedure is not required for routine maintenance or Proof of Performance.
Record all current control settings before beginning, so these settings can be restored
when this procedure is completed.
Record jumper positions when directed to reposition a jumper, so the jumpers can be
returned to these positions when you are finished.
Jumper and component locations are shown in the assembly drawings in the 9100 A Op
erating Manual and in installation instructions for retrofit kits containing Card #1F1O.
In a mono OPTIMOD-AM, all connections are to the left input or output
Always turn off the power to OPTIMOD-AM when removing circuit cards to move jumpers.
The alignment and verification procedure consists of:
- checking the accuracy of the DC reference voltage
- verifying the performance of the 5kHz and 10kHz low-pass filters
- checking DC servo operation
- adjusting the gain of the 10kHz low-pass filter
- adjusting the notch frequency of the 10kHz low-pass filter
- verifying distortion and noise performance
Follow instructions in the order given, without skipping steps.
Advertisement
