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7503
TABLE OF CONTENTS
SECTION 1 7503 SPECIFICATION Page SECTION 3 CIRCUIT DESCRIPTION Page
Table 1-1 Electrical 1_1 Block Diagram 3-1
Vertical Deflection System 1-1 Circuit Operation 3-3
Triggering 1-2 Logic Fundamentals 3-3
Horizontal Deflection System 1-2 Main Interface 3-7
Calibrator 1-2 Logic Circuit 3-7
External X-Axis Inputs 1-2 Trigger Selector 3-22
Signal Outputs 1-3 Vertical Interface 3-25
Power Supply 1-3 Vertical Amplifier 3-27
Cathode-.Ray Tube (CRT) 1-3 X-Y Delay Compensation and Horizontal
Amplifier 3-28
Table 1-2 Environmental 1-4 Output Signals and Calibrator 3-31
Table 1-3 Physical 1-4 3-34
CRT Circuit
Standard Accessories 1-5 Low-Voltage Power Supply 3-36
Instrument Options 1-5 Mode Switching and Rear-Panel
System Specifications Connectors 3-42
Readout System 3-43
SECTION 2 OPERATING INSTRUCTIONS SECTION 4 MAINTENANCE
Preliminary Information 2-1 Panel Removal 4-1
Operating Voltage 2-1 Power Unit Removal 4-1
Operating Temperature 2-2 Preventive Maintenance
Operating Position 2-2 Cleaning 4-1
2-2 Lubrication 42
Plug-In Units
Visual Inspection 4-2
Controls and Connectors 2-3 Semiconductor Checks 43
Cathode-Ray Tube (CRT) 2-3 Recalibration 4-3
Mode Selectors 2-5 Troubleshooting 4-3
Cal ibrator 2-5 Troubleshooting Aids 43
Inputs 2-5 Troubleshooting Equipment 4-5
Side Panel 2-5 Troubleshooting Techniques 45
Rear Panel 2-6 Troubleshooting the Readout System 411
2-6 Corrective Maintenance 413
First-Time Operation
2-6 Obtaining Replacement Parts 4-13
Set-Up Information
2-7 Soldering Techniques 413
Calibration
2-7 Component Replacement 414
Vertical Mode
2-7 Recalibration After Repair 4-20
Triggering
Control Illumination 2-7
2-7 SECTION 5 PERFORMANCE CHECK/CALIBRATION
Readout
Beam Finder 2-8 Test Equipment Required 5-1
Calibrator 2-8 Adjustment Tools 5-2
Z-Axis Input 2-8 Short-Form Procedure and Index 5-3
Test Set-Up Chart 2-9 Performance Check/Calibration Procedure 5-6
General Operating Information SECTION 6 ELECTRICAL PARTS LIST
Simplified Operating Instructions 2-9
Intensity Controls 2-11 Abbreviations and Symbols
Astigmatism Adjustment 2-12 Parts Ordering Information
Trace Alignment Adjustment 2-12 Index of Electrical Parts List
Graticule 2-12 Electrical Parts List
Light Filter 2-13
Beam Finder 2-13 SECTION 7 DIAGRAMS AND MECHANICAL PARTS
Control Illumination 2-13 ILLUSTRATIONS
Readout 2-13 Diagrams
Vertical Mode 2-14 Mechanical Parts Illustrations
Trigger Source 2-15 Accessories
X-Y Operation 2-15 Repackaging
Intensity Modulation 2-15
Raster Displays 2-16 SECTION 8 MECHANICAL PARTS LIST
Calibrator 2-16
Signal Outputs 2-17 Mechanical Parts List Information
Probe Power Connectors 2-17 Index of Mechanical Parts Illustrations
Remote Connector 2-17 Mechanical Parts List
Remote Single-Sweep Reset 2-18
Applications 2-18 CHANGE INFORMATION
Abbreviations and symbols used in this manual are based on or
taken directly from IEEE Standard 260 "Standard Symbols for
Units", MIL-STD-12B and other standards of the electronics
industry . Change information, if any, is located at the rear of this
manual .
Fig . 1-1 . 7503 Oscilloscope .
7503
SECTION 1
7503 ~ SPECIFICATION
Change information, if any, affecting this section will be found at the rear of the manual.
Introduction Additionally, the instrument includes a readout system pro-
viding CRT display of alpha-numeric information from the
The Tektronix 7503 Oscilloscope is a solid-state, high plug-ins, including deflection factor, sweep rate and other
performance instrument designed for general-purpose appli-
encoded parameters.
cations. This instrument accepts Tektronix 7-series plug-in
units to form a complete measurement system . The flexibility
of this plug-in feature and the variety of plug-in units avail-
able allow the system to be used for many measurement This instrument will meet the electrical characteristics
applications . listed in Table 1-1 following complete calibration as given
in Section 5. The performance check procedure given in
Section 5 provides a convenient method of checking instru-
The 7503 has three plug-in compartments. The left and ment performance without making internal checks or
center plug-ins are connected to the vertical deflection adjustments . The following electrical characteristics apply
system . The right plug-in is connected to the horizontal over a calibration interval of 1000 hours and an ambient
deflection system . Electronic switching between the plug- temperature range of 0◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo