
HP 85106D mm-Wave System
Contents-v
If Four Channels Fail the Unratioed Power Test . . . . . . . . . . . . . . . 4-21
If One, Two, or Three Channels Fail the Unratioed Power Test . . . 4-22
Figure 4-8. Test Set Service Program Flowchart . . . . . . . . . . . . . . . 4-23
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Theory Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Checking for Complete Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Front and Rear Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Figure 5-1. Front and Rear Panel Features of the HP 85104A (all
waveguide bands) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Installing Test Set Modules and Cable Support Assembly . . . . . . . . . . . . 5-3
Figure 5-2. HP 85104A Test Set Module Configuration . . . . . . . . . . 5-3
Using the Test Set Module Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Vertical Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Horizontal Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Figure 5-3. Test Set Module Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Removing the Test Set Module From the Stand . . . . . . . . . . . . . . . . . 5-5
Supplemental Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Troubleshooting Test Set Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Table 5-1. Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Figure 5-4. HP 85104A Troubleshooting Flowchart (1 of 2) . . . . . . . 5-9
Figure 5-5. HP 85104A Troubleshooting Flowchart (2 of 2) . . . . . . 5-10
Check IF Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Table 5-2. IF Power Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Switching Isolators (A7, A9, or A10) . . . . . . . . . . . . . . . . . . . . . . . 5-12
Switching Mixers (A11, A12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Swapping the Power Divider (A6) . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Removing the Incident or Reflected Isolator/Mixer Assemblies . . . 5-15
Check the RF Power into A13 Source Block . . . . . . . . . . . . . . . . . . 5-16
Table 5-3. RF Power Into the A13 Source Block . . . . . . . . . . . . . . . 5-16
Check the RF Power Out of A13 Source Block . . . . . . . . . . . . . . . . 5-17
Figure 5-6.Power Level Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Table 5-4. RF Power Out of the A13 Source Block . . . . . . . . . . . . . 5-18
Switch the Main Line Isolator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Check LO Input to Power Divider A6 . . . . . . . . . . . . . . . . . . . . . . . 5-20
Table 5-5. Power Divider LO Input Level . . . . . . . . . . . . . . . . . . . . 5-20
Check All Voltages to A13 Source Block . . . . . . . . . . . . . . . . . . . . 5-21
Figure 5-7. HP Q85104A Block Diagram . . . . . . . . . . . . . . . . . . . . 5-23
Figure 5-8. HP U85104A Block Diagram . . . . . . . . . . . . . . . . . . . . 5-25
Figure 5-9. HP V85104A Block Diagram . . . . . . . . . . . . . . . . . . . . 5-27
Figure 5-10. HP W85104A Block Diagram . . . . . . . . . . . . . . . . . . . 5-29
Summary of Contents for 85106D
Page 11: ...x HP 85106D mm Wave System ...
Page 117: ...4 24 HP 85106D mm Wave System Service and Troubleshooting Check Unratioed Power Levels ...
Page 139: ...5 22 HP 85106D mm Wave System HP 85104A Test Set Module Troubleshooting Procedures ...
Page 140: ......
Page 141: ......
Page 142: ......
Page 143: ......
Page 208: ......
Page 238: ...B 2 HP 85106D mm Wave System Upgrade Paths ...
Page 243: ...HP 85106D mm Wave System v work surface installation 1 12 ...
Page 244: ... vi HP 85106D mm Wave System ...