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The letter “D” in the error code above indicates that the failure is pos
-
sibly in the Source Module. (Refer to Table 5-3.)
Signal Source/Test
Set Module Error
Codes
Failures occurring in the Signal Source Module and Test Set Module will
also produce the error codes listed in Table 5-5.
NOTE
The 373XXA has extensive built-in troubleshooting tools
that are useful for troubleshooting the failures listed in
Table 5-5. These and other troubleshooting tools are ac-
cessed from the Option Menu key, which is part of the en-
hancement keygroup. (From the select OPTIONS menu
select DIAGNOSTICS, then select TROUBLE-
SHOOTING). Refer to Appendix A.
Troubleshooting tools that are available from the TROUBLE
-
SHOOTING menu that are useful for locating faults occurring in the
Source Module, Test Set Module and Receiver Module are:
NOTE
The troubleshooting tools listed below are used to test the
373XXA to factory set limits when the ANRITSU 37300A
Test Software (2300-178) is run.
When run from the TROUBLESHOOTING menu, not all
tests will display limit lines (as is the case when the
37300A Test Software 2300-178 is used).
NON-RATIO PARAMETERS
This function displays the output of each of the individual test set
channels. It is especially useful for verifying the performance of the
Buffer Amplifier and Power Amplifier.
NOTE
A through-line cable connecting Port 1 and Port 2 is re
-
quired for this check.
SOURCE/TEST SET/RECEIVER TROUBLESHOOTING
5-18 373XXA MM
Error Codes Possible Failed Assemblies
5110 RF PWR UNLEVELED All components in Source Module
and Test Set Module
5210 REF A CHAN RF OVERLOAD Transfer Switch
5220 REF B CHAN RF OVERLOAD Transfer Switch
5230 TA CHAN RF OVERLOAD Transfer Switch or A21A2 PCB
5240 TB CHAN RF OVERLOAD Transfer Switch or A21A2 PCB
Table 5-5. Signal Source/Test Set Module Error Codes