HP
8340B/41B
Assembly-Level
Service
Introduction
CONTENTS
INTRODUCTION
..............................................................
A-1
Manual
Format
..................................................
............
A-1
Required
Tools
..............................................................
A-2
Interconnect
Cables and
Mnemonics
.............................................
A-3
OVERALL INSTRUMENT
THEORY
.............................................
A-4-
Reference
Loops
.............................................................
A-4
M/N
Loop
...................................................................
A-4
20-30
Loops
.................................................................
A-5
YO
Loop
....................................................................
A-5
Controller
Section
............................................................
A-5
Front
Panel-Rear
Panel
........................................................
A-6
RF
Section
..................................................................
A-6
Power
Supplies
..............................................................
A-7
HP 8340B/41B
Block
Diagram
..................................................
A-9
CALIBRATION
CONSTANTS
..................................................
A-11
Instrument
Access
...........................................................
A-11
User
Access
................................................................
A-13
Calibration
Constants
Description
..............................................
A-16
How
to
Restore
Factory-Optimized
Calibration
Constants
...........................
A-23
TROUBLESHOOTING AIDS
...................................................
A-25
Self
Test
...................................................................
A-25
Phase-Lock
Indication
LEDs
...................................................
A-25
Power
Supply
Indication LEDs
.................................................
A-25
FRONT PANEL
DIAGNOSTICS
................................................
A-26
Shift
Manual
................................................................
A-27
Shift
Free
Run
...........................................................
A-27
Shift
Ext
...................................................................
A-27
Shift
M1
...................................................................
A-28
Shift
M2
..................................................................
A-28
Shift
M3
...................................................................
A-28
Shift
M4
...................................................................
A-29
Shift
M5
................................................................
,.
A-29
Shift RF
..................................................................
A-29
Shift
Meter
................................................................
A-29
Shift
Peak
...............................................................
A-30
Shift
Pwr
Sweep
............................................................
A-30
Shift
Slope
.................................................................
A-30
HP 8340B/41B
Table
of
Contents