Download Service Manual - Agilent Technologies
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Figure 10-15. DET OUT, LVL CONT, and DAC OUT Typical Traces 16: LVL CONT (Level Vernier Control Voltage) This node is located in the ALC circuit on the A3A1 ALC and detects the level vernier control voltage. See Figure 11-6. The typical trace for the following keystrokes' setting is displayed as the LVL CONT trace in Figure 10-15. NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALYZER TYPE , NETWORK ANALYZER , 4Preset5, 4Sweep5, NUMBER of POINTS , 475, 4x15, 4Sweep5, SWEEP TYPE MENU , POWER SWEEP , 4Start5, 4-5, 425, 405, 4x15, 4Stop5, 415, 405, 4x15 4Meas5, NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN To observe the trace, perform the steps in the Bus Measurement Procedure . At step 2 in the procedure, press the keys listed above. 17: DAC OUT (Level DAC Output Voltage) This node is located in the ALC circuit on the A3A1 ALC and detects the level DAC output voltage. See Figure 10-15. The typical trace for the following keystrokes' setting is displayed as the DAC OUT trace in Figure 10-15. NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANALYZER TYPE , NETWORK ANALYZER , 4Preset5, 4Sweep5, NUMBER of POINTS , 475, 4x15, 4Sweep5, SWEEP TYPE MENU , POWER SWEEP , 4Start5, 4-5, 425, 405, 4x15, 4Stop5, 415, 405, 4x15 4Meas5, NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN To observe this trace, perform the steps in the Bus Measurement Procedure . At step 2 in the procedure, press the keys listed above. 18: 1ST LO VTUNE (First Local Oscillator VCO Turning Voltage) This node is located in the 1st local oscillator on the A4A1 1st LO and detects the 2.05858 GHz to 3.85858 GHz VCO tuning voltage. See Figure 11-6. The typical trace for the following keystrokes' setting is displayed in Figure 10-16. The displayed trace is typically straight. The typical marker value is within 02.3 U to 01.2 U at a frequency of 100 kHz and within +0.1 U to +1.9 U at a frequency 1.8 GHz. 10-26 Service Key Menus