HP 8560E Service Manual page 407

IF Section
Introduction
Introduction
The IF Section contains the A4 Log Amplifier/Cal Oscillator and A5 IF
assemblies.
Troubleshooting Using the TAM ........................................
Troubleshooting the Log Amplifier with the TAM ..........
Troubleshooting A5 with the TAM...................................
Troubleshooting the Cal Oscillator with the TAM ..........
Automatic IF Adjustment ...................................................
Parameters Adjusted ........................................................
Requirements ....................................................................
Performance Test Failures..................................................
IF Gain Uncertainty Performance Test ...........................
Scale Fidelity Performance Test.......................................
Resolution Bandwidths Performance Tests .....................
Log Amplifier Assembly (P/O A4).......................................
Log Amplifier.....................................................................
Linear Amplifiers ..............................................................
Video Offset .......................................................................
Video Output .....................................................................
Frequency Counter Prescaler/Conditioner ......................
AM/FM Demodulator ........................................................
4.8 kHz IF Filters..............................................................
10.7 MHz IF Filters...........................................................
4.8 kHz and 10.7 MHz IF Filters .....................................
10.6952 MHz VCXO ..........................................................
Input Switch ......................................................................
LO Switch ..........................................................................
Synchronous Detector .......................................................
Limiter ...............................................................................
Isolation Amplifier ............................................................
Detector/Mixer...................................................................
Log Offset/Gain Compensation ........................................
Log Offset Compensation..................................................
Log Gain Compensation....................................................
Video MUX ........................................................................
A5 IF Assembly ...................................................................
IF Signature ......................................................................
Common IF Signature Problems ......................................
1 MHz Resolution Bandwidth Problems..........................
30 kHz Resolution Bandwidth Problems .........................
3 kHz and 10 kHz Resolution Bandwidth Problems .......
Step Gains .........................................................................
Cal Oscillator Assembly (P/O A4) ......................................
Cal Oscillator Unlock at Beginning of IF Adjust.............
Inadequate CAL OSC AMPTD Range .............................
300 Hz to 3 kHz Resolution Bandwidth Out of Specification ...
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Chapter 8