Agilent Technologies N5230A Service Manual page 102

Troubleshooting
Measurement System Troubleshooting
Figure 4-10 Serial Bus Test Dialog Box
Node Descriptions, A6 Multiplier Board
Node 1211 Gnd Node 1211 provides a ground reference for measurements.
Node 1213 ALC Integrator Node 1213 senses the output of the ALC integrator. The
output of the ALC integrator is the combined voltage output of all
compensation circuits in the ALC. The voltage level varies with frequency
and output power.
+5 Vdc Supply Voltage Node 1214 senses the 5 Vdc supply voltage that
Node 1214
serves as a measurement reference.
Node 1215 Power DAC Node 1215 senses the output voltage of the power DAC. This
output is input to the ALC integrator.
Node 1217 Multiplier Output Level Node 1217 senses the average voltage output
level of the multiplier board used to adjust the output level.
Node Descriptions, A8 Multiplier Board
Node 1111 Gnd Node 1111 provides a ground reference for measurements.
Node 1113 ALC Integrator Node 1113 senses the output of the ALC integrator. The
output of the ALC integrator is the combined voltage output of all
compensation circuits in the ALC. The voltage level varies with frequency
and output power.
+5 Vdc Supply Voltage Node 1114 senses the 5 Vdc supply voltage that
Node 1114
serves as a measurement reference.
Node 1115 Power DAC Node 1115 senses the output voltage of the power DAC. This
output is input to the ALC integrator.
Node 1117 Multiplier Output Level Node 1117 senses the average voltage output
level of the multiplier board used to adjust the output level.
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PNA Series Microwave Network Analyzers
Service Guide N5230-90014
N5230A