HP 8340A Service Manual page 116

This functional group contains the following information:
Overall description of the 20-30 Loop.
�
Simplified Block Diagram.
�
Overall descriptions of individual PLL2,
�
Troubleshooting Block Diagram.
�
Circuit Descriptions,
�
Tables, and Schematic Diagrams for all 20-30 L oop Assemblies.
LIST OF ASSEMBLIES
PLL2 Assemblies
A40 PLL2 VCO
®
A41 PLL2 Phase Detector
�
A42 PLL2 Divider
®
A43 PLL2 Discriminator
�
PLL3 Assembly
A39 PLL3 Upconverter
�
PLLl Assemblies
A36 PLLl VCO
�
A37 PLLl Divider
@
A38 PLLl IF
®
Model 8340A - Service
20-30 LOOP
INTRODUCTION
Component Location Diagrams, Pin I/O
(Voltage Controlled Osc.)
(Voltage Controlled Osc.)
Scans by HB9HCA and HB9FSX
PLL3, and PLLl Loops.
8-159/8-160