Chapter 4 Operating The Modulator - Cisco D9477-1 Installation And Operation Manual

78-717866-01 Rev D
4 Chapter 4
Operating the Modulator
Introduction
This chapter contains procedures for viewing and changing MQAM
settings, descriptions of screens and messages, and instructions for
performing routine maintenance.
Note: Actual screen settings may differ slightly from the examples
presented in this guide.
In This Chapter
 Understand the Boot Process .............................................................. 42

Change the Boot Mode ......................................................................... 45

Read the Default Status Screen ........................................................... 47

Use the Front Panel Keys to Change Configuration Settings ......... 48

Adjust the Frequencies of a Selected Carrier .................................... 50

Adjust the RF Output Level of a Selected RF Module ..................... 51

Mute the RF Output of a Selected RF Module .................................. 52

Change the Carrier Mode of a Selected RF Module......................... 53

Monitor Setup Options ........................................................................ 54
 Inspect the Modulator .......................................................................... 60

Select an RF Module ............................................................................. 61
 Inspect the MQAM ............................................................................... 62

Replace the Fuse .................................................................................... 63

Diagnose the Fan ................................................................................... 65

Replace the Fan ..................................................................................... 66
41