Agilent Technologies E5071C Service Manual page 194

Troubleshooting
Troubleshooting Using Diagnostics Test
Figure 4-16 Flowchart for troubleshooting on Internal Level Monitor Test
Internal Level
Monitor Test
SYN:LCL: FAIL?
NO
SYN:SRC: FAIL?
NO
VNR: FAIL?
NO
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YES
Assy 50Ohm on LCL
B'd Output
NO
SYN:LCL FAIL?
NO
Cable Assy or
Distributor B'd has
trouble
YES
Assy 50Ohm on SRC
B'd Output Port
NO
SYN:LCL FAIL?
NO
Cable Assy or VNR B'd
has trouble
YES
Assy 50Ohm on VNR
Output Port
NO
VNR: FAIL?
NO
Assy 50Ohm on output
ports of Soure Switch 1
NO
VNR: FAIL?
NO
2Port Model
4Port Model
Assy 50Ohm on output
ports of Soure Switch 2
NO
VNR: FAIL?
NO
Replace
Rec B'd on Port1
YES
Replace
LCL B'd
YES
Replace
SRC B'd
YES
Replace
VNR B'd
YES
Replace
Soure Switch 1
YES
Replace
Soure Switch 2
Chapter 4