Anritsu 683XXB User Manual
Chapter 5
Troubleshooting
Troubleshooting
5-1
INTRODUCTION
This chapter provides information for troubleshooting signal generator
malfunctions. The troubleshooting procedures presented in this chap-
ter support fault isolation to a replaceable subassembly or RF compo-
nent. (Remove and replace procedures for the subassemblies and RF
components are found in Chapter 6.)
malfunctions. The troubleshooting procedures presented in this chap-
ter support fault isolation to a replaceable subassembly or RF compo-
nent. (Remove and replace procedures for the subassemblies and RF
components are found in Chapter 6.)
5-2
RECOMMENDED TEST
EQUIPMENT
EQUIPMENT
The recommended test equipment for the troubleshooting procedures
presented in this chapter is listed in Chapter 1, Table 1-2 (page 1-12).
presented in this chapter is listed in Chapter 1, Table 1-2 (page 1-12).
5-3
ERROR AND
WARNING/STATUS
MESSAGES
WARNING/STATUS
MESSAGES
During normal operation, the 682XXB/683XXB generates error mes-
sages to indicate internal malfunctions, abnormal instrument opera-
tions, or invalid signal inputs or data entries. It also displays warning
messages to alert the operator to conditions that could result in inac-
curate signal generator output. In addition, status messages are dis-
played to remind the operator of current menu selections or settings.
sages to indicate internal malfunctions, abnormal instrument opera-
tions, or invalid signal inputs or data entries. It also displays warning
messages to alert the operator to conditions that could result in inac-
curate signal generator output. In addition, status messages are dis-
played to remind the operator of current menu selections or settings.
Self-Test
Error
Messages
Error
Messages
The 682XXB/683XXB firmware includes internal di-
agnostics that self-test the instrument. These self-
test diagnostics perform a brief go/no-go test of most
of the instrument PCBs and other internal assem-
blies.
agnostics that self-test the instrument. These self-
test diagnostics perform a brief go/no-go test of most
of the instrument PCBs and other internal assem-
blies.
You can perform an instrument self-test at any time
during normal operation by pressing
during normal operation by pressing
SYSTEM
and
then the System Menu soft-key
Selftest
.
If the signal generator fails self-test, an error mes-
sage(s) is displayed on the front panel data display.
These error messages describe the malfunction and,
in most cases, provide an indication of what has
failed. Table 5-1 is a summary listing of the self-test
error messages. Included for each is a reference to
the troubleshooting table that provides a description
of the probable cause(s) and a procedure for identify-
ing the failed component or assembly.
sage(s) is displayed on the front panel data display.
These error messages describe the malfunction and,
in most cases, provide an indication of what has
failed. Table 5-1 is a summary listing of the self-test
error messages. Included for each is a reference to
the troubleshooting table that provides a description
of the probable cause(s) and a procedure for identify-
ing the failed component or assembly.
682XXB/683XXB MM
5-3