Anritsu 373XXA - Manual (Page 66)

the Source Module to achieve lock. Refer to Figure 5-2 for 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
Shot Data
Error codes will be written to the service log along with some data repre-
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.
SYSTEM HAS ERROR CODE TROUBLESHOOTING
5-12 373XXA MM
Failure
Suffix
Failed Assembly/
Failure Mode
Failure
Suffix
Failed Assembly/
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
Table 5-2. Phase Lock Error Message Failure Suffixes