Anritsu 373XXA - Manual (Page 70)

SYSTEM HAS ERROR CODE TROUBLESHOOTING
5-16 373XXA MM
Reverse Fails
Only?
Yes
No
Fails below
38 GHz?
Fails above
38 GHz?
Fails above
38 GHz?
Normal power at
Port 2 (S12)?
Normal power at
Port 2 (S12)?
Normal power at
Port 2 (S12)?
Buffer Amp, A4
or A8 Failure
A8, A4, or Buffer
Amp Failure
A8, transfer sw
failure
Buffer Amp, A8, or
A4 Failure
Ref B MUX Failure
Ref B SQM, SPDT
Switch, A8, or MUX Failure
Yes
Yes Yes
Yes
Yes
Yes
No
No No
No
No
No
2
Not logical. Call
Customer Service
Not logical. Call
Customer Service
From Sheet 1
Figure 5-2. Error Code DE Lock Failure Troubleshooting (37397A) (3 of 3)