1.
Remove the bias tee as described in procedure
(1).
2.
Remove the aluminum shield (which covers the couplers), disconnect any wires that cross the
coupler and remove the two screws which attach the coupler to the test set chassis.
3.
Disconnect the semi-rigid cable from the coupler to the sampler.
4. Carefully loosen the nut on the front of the test set with the 1 in. torque wrench. Remove the nut and
washer.
5.
Move the coupler away from the front panel and lift it out of the test set.
6.
Remove any brackets before sending the coupler to HP for repair.
NOTE:
Reflection/transmission test sets use a splitter rather than a combination switch/splitter. Both
devices are installed in the same place in the various test sets.
1.
Remove the semi-rigid cables from the switch/splitter with the
in. wrench. (Reposition any
other cables as required to ease removal.)
2.
Remove the four (4) screws which attach the switch/splitter mounting bracket to the chassis.
3.
Remove the switch/splitter and bracket from the test set.
4.
Remove the bracket from the switch/splitter before sending the switch/splitter to HP for repair.
The frequency converter consists of a
(voltage-tuned oscillator) assembly and three or four
samplers.
Handle only at Static Safe
Work Stations
The frequency converter is especially sensitive to electrostatic dis-
charge. Wear a ground strap that is connected to earth ground when
performing this procedure.
5-10
Test Set Troubleshooting
HP
Test