5-16
HP 85106D mm-Wave System
HP 85104A Test Set Module
Troubleshooting Procedures
Check the RF Power
into A13 Source Block
Procedure 6
The following equipment is required to perform this procedure:
•
Power Meter
HP 463A
•
Power Sensor
HP 8485A
Before beginning this procedure, turn the HP 85105A mm-wave controller
power OFF. Disconnect the HP 85104A from the HP 85105A. Refer to step
references in Figure 5-11 on page 5-32.
1. Disassemble the test-set module using the following four steps:
a.
Invert the test set module so that the bottom side is facing up.
Remove the stand by loosening the two captive screws until the
module and stand are disengaged.
b.
Remove all extensions from the HP 85104 test set modules.
c.
Remove the two torx-head screws from the bottom housing. Pull the
bottom housing off.
d. Slide the front panel up and out. Cut and remove any cable ties as
needed.
2. Remove the RF cable from the 90° coaxial bend and connect the RF
cable to the power sensor.
3. Reconnect the cables from the HP 85104A to the HP 85105A. Turn the
HP 85105A ON. The measured power level displayed on the power
meter should be within the value listed in Table 5-3.
4. Return to the troubleshooting flowchart.
Table 5-3
RF Power Into the A13 Source Block
All Bands
> +13 dBm
Summary of Contents for 85106D
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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 ...
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Page 238: ...B 2 HP 85106D mm Wave System Upgrade Paths ...
Page 243: ...HP 85106D mm Wave System v work surface installation 1 12 ...
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