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4-32 Service Guide N5230-90014

Troubleshooting PNA Series Microwave Network Analyzers

Measurement System Troubleshooting N5230A

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.

Node 1214 +5 Vdc Supply Voltage Node 1214 senses the 5 Vdc supply voltage that

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.

Node 1114 +5 Vdc Supply Voltage Node 1114 senses the 5 Vdc supply voltage that

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.

Agilent Technologies N5230A User Manual

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