Mocomtech SLM-5650 - Manual (Page 103)

5–1
Chapter 5. MAINTENANCE
This chapter contains system checkout, fault isolation, and identification information.
5.1 System Checkout
This section provides instructions for checking the modem setup within the earth station. Due
to the complexity of the modem circuitry, the checkout procedure should be used only as a
basic guideline. Maintenance tests that are more complicated are beyond the scope of this
manual.
The system checkout consists of test instructions for the interface PCB, modem PCB,
TURBO PCB, and L-Band IF PCB. The instructions include tables and test points for
ensuring that the E
b
/N
0
, typical output spectrums, typical eye patterns, and constellations are
correct. If a test failure occurs, refer to for fault isolation procedures.
CAUTION
This equipment contains parts and assemblies sensitive to damage by ESD.
Use ESD precautionary procedures when touching, removing, or inserting
PCBs.