HP 4262A User Manual

Model 4262A
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LIST OF ILLUSTRATIONS
Title Page
Basic Block Diagram ............. 8-2
Cp Measurement ......coeeevenesn 8-3
Measurement Principles........... 8-7
Offset Control Principle........... 8-6
DC Bias Circuit ....o0vviveinennn. 8-6
Analog Section Block Diagram...... 8-9
Digital Section Block Diagram...... 8-11
Timing Diagram ......ecevveennan 8-13
Option Section Block Diagram...... 8-15
How to Use Troubleshooting Guides.8-17
Self Test Function ...........0uuun 8-21
Signature Analysis Guide .......... 8-23
Protective Diode and ZERO ADJ
Control Potentiometer
Replacement...........co0vunnnn 8-26
A2 Keyboard and Display
Board Disassembly.....cco0vueen. 8-217
Inserting Tubing into Switch Plunger 8-28
LED Installation in Switch ......... 8-28
Analog and Digital Section
Isolation Procedure ............. 8-31
Analog Section Troubleshooting
Procedure to Assembly Level.....8-33
Digital Section Troubleshooting
Procedures ................l. 8-35
Schematic Diagram Notes........ ..8-43
Assembly Locations.......ovoevvess 8-43
Adjustment Locations ............. 8-43
Front Panel Component Locations ..
Rear Panel Component Locations...
A2 Keyboard & Display Board
Assembly Component Locations...
A2 Keyboard & Display Board
Assembly Schematic Diagram ....
A9 Power Supply Board
Troubleshooting Tree............ 8-46
A9 Power Supply Board Assembly
Component Locations ............ 8-417
A9 Power Supply Board Assembly
Schematic Diagram ............. 8-417
All OSC & Source Resistor Board
Troubleshooting Tree............ 8-48
All OSC & Source Resistor Board
Assembly Component Locations ..
All OSC & Source Resistor Board
Assembly Schematic Diagram ..,.8-49
Al2 Range Resistor Board
Troubleshooting Tree ........... 8-50
Al2 Range Resistor Board Assembly
Component Locations ............ 8-51
Al2 Range Resistor Board
Assembly Schematic Diagram..... 8-51
Al3 Process Amplifier Board
Troubleshooting Tree............ 8-52
Number
8-37.
8-38,
8-39.
8-40,
8-41,
8-42.
8-43.
8-44,
8-45.
8-46.
8-417.
8-48.
8-49.
8-50,
8-51,
8-52.
8-53.
8-54.
8-55.
8-56.
8-517.
8-58.
8-59.
8-60.
List of Illustrations
Title
Al13 Process Amplifier Board
Assembly Component Locations. ..
Al3 Process Amplifier Board
Assembly Schematic Diagram..... 8-53
Al4 Phase Detector & Integrator
Board Troubleshooting Tree(A) ...
Al4 Phase Detector & Integrator
Board Troubleshooting Tree(B) ...
Al4 Phase Detector & Integrator
Board Assembly
Component Locations ............ 8-57
Al4 Phase Detector & Integrator
Board Assembly
Schematic Diagram ............. 8-57
A21 Keyboard Control Board
Assembly Component Locations, ..
A2l Keyboard Control Board
Assembly Schematic Diagram ....
A22 Display Control & RAM Board
Assembly Component Locations...8-61
A22 Display Control & RAM Board
Assembly Schematic Diagram ...
A23 Processor & ROM Board
Assembly Component Locations...8-63
A23 Processor & ROM Board
Assembly Schematic Diagram ...
A4 Thumbwheel Switch Board
Assembly Component Locations...8-65
A5 Comparator Keyboard Board
Assembly Component Locations...8-65
A4 Thumbwheel Switch Board and
A5 Comparator Keyboard Board
Assembly Schematic Diagram .
A24 Comparator Control Board
Diagnostic Flow Diagram ........ 8-66
A24 Comparator Control Board
Assembly Component Locations...8-67
A24 Comparator Control Board
Assembly Schematic Diagram
A25 HP-IB Interface Board
Diagnostic Flow Diagram......... 8-68
A25 HP-IB Interface Board
Assembly Component Locations..,8-69
A25 HP-IB Interface Board
Assembly Schematic Diagram ...
A35 BCD Output Control Board
Diagnostic Flow Diagram ........ 8-70
A35 BCD Output Control Board
Assembly Component Locations...8-71
A35 BCD Output Control Board
Assembly Schematic Diagram ...
.8-61
.8-63
..8-65
cee.8-67
.8-69
.8-71

HP 4262A Specifications

General

Brand	HP
Model	4262A
Category	Measuring Instruments
Language	English