Troubleshooting Adjustment Problems - Agilent Technologies PSG Series Service Manual

Troubleshooting Adjustment Problems

When an adjustment does not work or fails to resolve a problem and all self-tests have passed, use the
following table to locate the most likely failure.
Table 1-34 Troubleshooting Help for Failed Adjustments
Adjustment that is failing...
ADC Calibration
YIG-Driver Pre-Tune Calibration
VCO Bias Franc-N Calibration
Internal Source Calibration
AM Audio Path Offset Calibration
KV vs. Frequency Calibration
Timebase Calibration
FM Scale Offset Calibration
FM Path Offset Calibration
FM In-band Offset Calibration
FM Inverting Amplifier Offset Calibration
FM 1/2 Path Ratio Gain Calibration
Mod Source Relative Gain Calibration
FM/PM Out-of- Band Calibration
FM/PM YO Frequency Compensation Calibration
DC FM Calibration
Low Frequency Output Calibration
External Input Peak Detector Calibration
ALC Dynamic Calibration
Power Flatness Calibration
Attenuator Calibration-Low Band and High Band Power
Attenuator Calibration-High Band and High Power
Attenuator Calibration-Low Band and Low Power
Troubleshooting Adjustment Problems
Assemblies most likely causing failure...
A18 CPU
A9 YIG Driver
A28 YIG Oscillator
A5 Sampler
A6 Frac-N
A6 Frac-N
A11 Pulse/Analog Modulation Generator
A11 Pulse/Analog Modulation Generator
A6 Frac-N
A7 Reference
A11 Pulse/Analog Modulation Generator
A11 Pulse/Analog Modulation Generator
A6 Frac-N
A6 Frac-N
A6 Frac-N
A11 Pulse/Analog Modulation Generator
A11 Pulse/Analog Modulation Generator
A6 Frac-N
A9 YIG Driver
A28 YIG Oscillator
A6 Frac-N
A11 Pulse/Analog Modulation Generator
A11 Pulse/Analog Modulation Generator
A11 Pulse/Analog Modulation Generator
A10 ALC
A30 Modulation Filter
A8 Output
A10 ALC
RF Path
AT1
RF Path
AT1
RF Path
AT1
RF Path
Troubleshooting
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