Setup For Troubleshooting - HP 8414A Operating And Service Manual

Model 8414A
Section VIII
Service
TROUBLESHOOTING SETUP
NETWORK ANALYZER
SWEEP OSCILLATOR MAINFRAME HP 8414A OSCILLATOR
EQUIPMENT
SWEEP OSCILLATOR.HP 8690-SERIES WITH RF UNIT AS REQUIRED
NETWORK ANALYZER.HP 8410A/8411A OR HP 8407A
CSCILLATCR.HP 200CD
20-dB ATTENUATOR .HP 8491A
OSCILLOSCOPE.HP 180A/1801A/1821A
INITIAL EQUIPMENT SETUP:
a. Remove 8414A covers and connect 8414A to Network Analyzer mainframe with extender
cable, HP Part No. 08410-6032.
b. Set the sweep oscillator for single-frequency operation and connect the RF output to the
Network Analyzer reference channel input only.
c. Set the Network Analyzer to phase lock to the applied signal and adjust the sweep oscillator
RF output level for a Network Analyzer reference channel level meter indication in the middle of the
operate region.
d. Set the Network Analyzer test channel gain1 controls for minimum gain.
e. Set the 8414A INTENSITY control fully clockwise.
f. Press and hold the 8414A BEAM CTR pushbutton and adjust the HORIZONTAL and
VERTICAL POS controls to locate the dot in the center of the Polar Display.
Note
Perform block diagram troubleshooting.
^-Display reference for 8407A.
Figure 8-4. Setup for Troubleshooting
8-7