Anritsu 373XXA manual Failure Failed Assembly Suffix Failure Mode

SYSTEM HAS ERROR CODE TROUBLESHOOTING

Table 5-2.Phase Lock Error Message Failure Suffixes

Failure	Failed Assembly/	Failure	Failed Assembly/
Suffix	Failure Mode	Suffix	Failure Mode
A	10 MHz not present	E	IF lock signal level too low
B	L01 unlocked	F	Ext synthesizer unlocked
C	L02 unlocked	G	L03 unlocked
D	Source unlocked	none	Unknown

the Source Module to achieve lock. Refer to Figure 5-2for a flowchart that troubleshoots the >40 GHz models (37397A).

Example 1: Any of the following error messages indicate that the

LO1 PCB assembly was not able to lock:

6002 PHS LCK FAIL B

6010 PHS LCK FAIL BD

6026 PHS LCK FAIL BDE

Also note that if the 10 MHz Reference fails, depending on the failure, the system will not be able to lock any of the phase lock loop compo- nents: A1, A2, A7, A8, or Source Module.

Example 2: Either of the following error messages indicate a 10

MHz Reference problem:

6001 PHS LCK A

6015 PHS LCK ABCDG

Service Log Snap Error codes will be written to the service log along with some data repre- Shot Data senting a “Snap Shot” of system conditions at the time of failure. Usually, the data included in the snap shot helps to provide faster diagnosis of the

error condition. The common snap shot data items that will be useful inassembly level troubleshooting and fault diagnosis efforts are listed in Table 5-3.

NOTE

Some of the data included in the snap shot is useful only for factory troubleshooting activities.

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