Scanned document, reading partly badly, partly not readable.
Section 1, General Information
Description ... 1-1
Specifications ... 1-2
Section 2, Installation
Safety ... 2-1
Installation ... 2-2
Counter Identification ... 2-2
Shipping and Storage ... 2-2
Performance Checkout Procedure ... 2-2
Section 3, Operation
Front Panel Controls and Indicators ... 3-1
Display ... 3-1
Operating Status ... 3-2
Power Meter/DAC Option ... 3-2
Signal Input ... 3-3
Rear Panel Controls and Connectors ... 34
Keyboard ... 3-5
Units ... 3-5
Clear (Data/Display) ... 3-5
Band Selection ... 3-6
Resolution/Gate Time Selection ... 3-7
Display and Data Entry Sequence ... 3-8
Multiply Function ... 3-9
Frequency Limits ... 3-10
Test Selection ... 3-11
Set-Up for Basic Frequency»*Measurement ... 3-13
Frequency Offsets ... 3-13
Display Error Messages ... 3-14
Section 4, Theory of Operation
General ... 4-1
Basic
Counter ... 4-2
Band 2
Converter ... 4-2
Band 3
Converter ... 4-7
Converter Control A108 ... 4-7
Converter A203 ... 4-7
Operation ... 4-9
Section 5, Maintenance and Service
Maintenance ... 5-1
Fuse Replacement ... 5-1
Periodic Maintenance ... 5-1
Service ... 5-2
Disassembly Repair, Replacement and
Reassembly by Assembly ... 5-2
Factory ... 5-7
Field ... 5-8
PAGE
Section 6, Troubleshooting
Signature Analysis ... 6-1
Free Running ... 6-1
Program Controlled ... 6-3
Self Diagnostics ... 6-3
Keyboard Controlled Circuit Tests ... 64
Tests ... 6-6
Significant Addresses, I/O Ports ... 6-8
Significant Addresses, RAM ... 6-10
Troubleshooting Trees ... 6-11
Test Equipment Required ... 6-11
Section 7, Adjustments and Calibrations
General ... 7-1
Power supply Adjustments ... 7-1
YIG DAC Calibration Process ... 7-3
YIG DAC Correction Table ... 7-3
Time Base Calibration ... 7-5
Temperature Compensated Crystal
Oscillator (TCXO) ... 7-5
TCXO Calibration ... 7-6
Display Intensity ... 7-6
Section 8, Performance Tests
General ... 8-1
Variable Line Voltage ... 8-1
Required Test Equipment ... 8-1
Band 1 ... 8-1
Band 2 ... 8-2
Band 3 ... 8-2
Section 9, Functional Description and Illustrated Parts Breakdown ... 9-1
Reference Designations and Abbreviations ... 9-1
Assembly Locations and Cable Connections ... 9-2
545A
548A/Microwave
Counter Top Assembly
Parts List ... 9-3
545/548 Overall Block Diagram ... 9-5
A100
Counter Interconnect ... 100-1
A101
Power supply ... 101-1
A105 Microprocessor ... 105-
Section 9, (Continued)
A106 Count Chain ... 106-1
A107 Gate
Generator ... 107-1
A108
Converter Control ... 108-1
A109 Band 2
Converter ... 109 1
A110 Front Panel Display and Keyboard ... 110-1
A111 Front Panel Logic ... 111-1
A203 Microwave
Converter ... 203-1
Section 10, Options
Option 01, Digital-to-Analog
Converter (DAC) ... 01-1
Specifications ... 01-1
Operation ... 01-1
Theory of Operation ... 01-2
Calibration ... 01-6
Troubleshooting ... 01-7
DAC Signatures ... 01-8
Parts List ... 019
Option 02, Power Measurement ... 02-1
Specifications ... 02-1
Operation ... 02-1
Theory of Operation ... 02-2
Calibration ... 02-6
Option 03, Time Base Oscillators ... 03/4/5-1
04, 05 Oven
Oscillator Power supply ... 03/4/5-3
Oven
Oscillator Calibration ... 03/4/5-4
Option 06, Extended Frequency Capability ... 06-1
Specifications ... 06-1
Operation ... 06-1
Theory of Operation - Hardware ... 06-2
Theory of Operation -
Software ... 06-3
Locking Process ... 06-3
Initialization ... 06-3
VCO Sweep ... 06-3
Centering ... 06-4
Performance Tests ... 06-6
Option 07, Remote Programming/BCD Output ... 07-1
Specifications ... 07-1
Operation ... 07-1
BCD Output ... 07-1
Remote Programming ... 07-2
Control Line Functions ... 07-2
Data Line Functions ... 07-2
Program Line Functions ... 07-3
PAGE
Section 10, (Continued)
Data Entry ... 07-4
Data Examples ... 07-4
Remote Programming Pin Connections . . 07-5
Theory of Operation ... 07-6
Parts List ... 07-9
Option 08, General Purpose
Interface Bus (GPIB) . . . 08-1
GPIB Functions Implemented ... 08-1
Setting Address Switch ... 08-1
Device Dependent Data Input ... 08-2
GPIB Instruction Format ... 08-2
Formal Definition of Instructions ... 08-3
Program Code Set ... 08-4
Available Commands ... 08-6
Data Output Format ... Q3-10
Program Examples ... 08-11
Reading Measurement ... 08-12
Allowable Address Codes ... 08-13
Parts List ... 08-15
Option 09, Rear Input ... 09 1
010, Chassis Slides ... 010-1
Option 13, Mate-CIIL
Interface ... 013-1
Option 14, 0.1 Hz Resolution ... 014-1
Appendix A,
Accessories ... A-1
Furnished
Accessories ... A*1
Purchased
Accessories ... A-1
Remote Sensor Option ... A-1
Service Kit ... A-2
Appendix B, List of Manufacturers ... B-1
Appendix C, Memory Address Changes ... C1
New Error Messages ... C2
Other New Features ... C2
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