TROUBLESHOOTING

TROUBLESHOOTING

TABLES

Table 5-6.Error Messages 105 and 106 (8 of 10)

–43VT Supply Problems

This supply provides –43 volts to drive the YIG-tuned oscillator main tuning coil during bandswitching, fast analog sweeps, and digital sweeps.

Step 9. Perform the following procedure to isolate malfunctions to the –43VT supply and its outlying load circuit.

a.Place the LINE switch to STANDBY.

b.Replace the A15 PCB assembly.

c.Place the LINE switch to OPERATE.

d.Set up the 682XXB/683XXB to perform a 2 to 20 GHz step sweep.

e.Measure the –43VT voltage per Table 5-7.

qIf the voltage is correct, the problem is cleared. If the voltage is incorrect, go to step f.

f.Place the LINE switch to STANDBY.

g.Remove the A13 PCB and the YIG-tuned oscillator assembly.

h.Place the LINE switch to OPERATE and measure the –43VT voltage.

qIf the voltage is correct, go to step i.

If the voltage is still incorrect, contact your local

ANRITSU service center for assistance.

i.Place the LINE switch to STANDBY.

j.Install the A13 PCB.

k.Place the LINE switch to OPERATE and measure the –43VT voltage.

If the voltage is correct, replace the YIG-tuned

qoscillator assembly.

If the voltage is incorrect, replace the A13 PCB.

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682XXB/683XXB MM

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Anritsu 682XXB, 683XXB manual 43VT Supply Problems

682XXB, 683XXB specifications

The Anritsu 683XXB and 682XXB series are advanced vector network analyzers (VNAs) renowned for their precision and versatility in characterizing RF and microwave components. Designed for engineers and technicians involved in the development, manufacturing, and testing of high-frequency devices, these analyzers offer state-of-the-art technology that ensures optimal performance in various applications.

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