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Maintenance testing, Toubleshooting – Comtech EF Data XPA-200 User Manual

Page 74

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XPA200-7984-I-OPT1, X-Band SSPA

Maintenance and Troubleshooting

Maintenance and Troubleshooting

XPA200-7984-I-OPT1, Rev.2

6-2

6.2 Maintenance Testing

Use the instructions in Section 2.0 for installing the SSPA

for checkout, and the procedures in Section 3.0, System

Operation, for operating the SSPA.

The SSPA is a X-Band SSPA with an RF output level of +53.0

minimum dBm at 1 dB compression.

6.2.1 Test Point Samples

The RF input and output can be monitored at the RF Sample

Test Points on the front panel. Type N connectors are provided.

The sample RF input level is -20 dBc nominal, and the RF output

level is -40 dBc nominal. Actual measured data for these sample

ports is located on the front panel.

6.3 Troubleshooting

SSPA operating problems can be identified by first observing

the status indicators on the front panel. When a fault condition

is indicated, the specific fault, or faults, can be identified in

the Current Faults Function Menu, Figure 3-4, which is accessed

through the local operation key-pad and displayed on the LCD

display located on the front panel. The status of SSPA functions

is displayed in the Monitor Status Functions Menu, Figure 3-3.

Refer to paragraph 3.3, operation, for a description of the SSPA

command functions; also, check the status of the mute condition

in the configuration menu (i.e.: Mute = “On” means that the

amplifier will be muted.)

6.3.1 SSPA Faults

Check the Monitor Status Functions Menu for possible faults,

or an indication of a marginal performance tolerance condition.