Tektronix 2235 Oscilloscope
Manufacturer:
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Model:
2235
Date:
1983
Category:
Group:
Description:
Dual Channel 100MHz Oscilloscope
Information
The Tektronix 2235 Oscilloscope is a rugged, lightweight,
dual-channel, 100-MHz instrument that features a bright,
sharply defined trace on an 80- by 100-mm cathode-ray tube
(crt). Its vertical system provides calibrated deflection
factors from 2 mV per division to 5 V per division.
Trigger circuits enable stable triggering over the full
bandwidth of the vertical system. The horizontal system
provides calibrated sweep speeds from 0.5 s per division to
50 ns per division along with delayed-sweep features for
accurate relative-time measurements. A X10 magnifier extends
the maximum sweep speed to 5 ns per division.
Manual type:
User Manual
Pages:
58
Size:
2.82 Mbytes (2952643 Bytes)
Language:
english
Revision:
revised
Manual ID:
070-4207-00
Date:
1987 04 01
Quality:
Scanned document, all readable.
Upload date:
2017 04 23
MD5:
297dc67bc8b4d09c938328cda15d287a
Downloads:
860
Information
LIST OF ILLUSTRATIONS ... ii
LIST OF TABLES ... ii
OPERATORS SAFETY SUMMARY ... ¡ii
SECTION 1 GENERAL INFORMATION
INTRODUCTION ... 1-1
SPECIFICATION ... 1-1
CALIBRATION ... 1-10
REPACKAGING FOR SHIPMENT ... 1-10
SECTION 2 PREPARATION FOR USE
FIRST-TIME START UP ... 2-1
SAFETY ... 2-1
LINE VOLTAGE ... 2-1
POWER CORD ... 2-1
LINE FUSE ... 2-2
INSTRUMENT COOLING ... 2-2
CONTROLS, CONNECTORS,
AND INDICATORS ... 2-3
POWER, DISPLAY, AND
Probe ADJUST ... 2-3
VERTICAL ... 2-4
HORIZONTAL ... 2-5
TRIGGER ... 2-6
REAR PANEL ... 2-8
SECTION 3 OPERATING CONSIDERATIONS
GENERAL OPERATING
INFORMATION ... 3-1
GRATICULE ... 3-1
GROUNDING ... 3-1
SIGNAL CONNECTIONS ... 3-1
INPUT COUPLING CAPACITOR
PRECHARGING ... 3-1
OPERATOR'S ADJUSTMENTS ... 3-2
TRACE ROTATION ... 3-2
Probe COMPENSATION ... 3-2
Page
SECTION 4 OPERATING PROCEDURES
INSTRUMENT
FAMILIARIZATION ... 4-1
INTRODUCTION ... 4-1
BASELINE TRACE ... 4-1
DISPLAYING A SIGNAL ... 4-2
BASIC APPLICATIONS ... 4-7 NONDELAYED
MEASUREMENTS ... 4-7
DELAYED-SWEEP
MAGNIFICATION ... 4-16
DELAYED-SWEEP
TIME MEASUREMENTS ... 4-18
SECTION 5 OPTIONS AND Accessories
OPTIONS ... 5-1
STANDARD Accessories
INCLUDED ... 5-1
OPTIONAL Accessories ... 5-1
Manual type:
Service and User Manual
Pages:
229
Size:
54.46 Mbytes (57103053 Bytes)
Language:
english
Revision:
Revised
Manual ID:
070-4206-00
Date:
Quality:
Scanned document, all readable.
Upload date:
2013 04 15
MD5:
c7925be4f58e3abe6b43dfb694abbdae
Downloads:
2220
Information
LIST OF ILLUSTRATIONS ... ni
LIST OF TABLES ... iii
OPERATORS SAFETY SUMMARY ... i v
SERVICING SAFETY SUMMARY ... v
SECTION 1 SPECIFICATION
INTRODUCTION ... 1-1
ACCESSORIES ... 1-1
PERFORMANCE CONDITIONS ________1-1
SECTION 2 OPERATING INSTRUCTIONS
PREPARATION FOR USE ... 2-1
SAFETY ... 2-1
LINE VOLTAGE ... 2-1
POWER CORD ... 2-1
LINE FUSE ... 2-1
INSTRUMENT COOLING ... 2-2
CONTROLS, CONNECTORS, AND
INDICATORS ... 2-2
POWER, DISPLAY, AND Probe
ADJUST ... 2-2
VERTICAL ... 2-3
HORIZONTAL ... 2-4
TRIGGER ... 2-6
REAR PANEL ... 2-8
GRATICULE ... 2-8
GROUNDING ... 2-8
SIGNAL CONNECTIONS ... 2-8
INPUT COUPLING CAPACITOR
PRECHARGING ... 2-8
OPERATOR’S ADJUSTMENTS ________2-9
INTRODUCTION ... 2-9
TRACE ROTATION ... 2-9
Probe COMPENSATION ... 2-9
Oscilloscope DISPLAYS ... 2-10
INTRODUCTION ... 2-10
BASELINE TRACE ... 2-10
SIGNAL DISPLAY ... 2-11
MAGNIFIED-SWEEP DISPLAY .. 2-11
DELAYED-SWEEP DISPLAY ________2-11
DELAYED-SWEEP
MEASUREMENTS ... 2-11
SINGLE-SWEEP DISPLAY ... 2-12
X-Y DISPLAY ... 2-12
TV SIGNAL DISPLAYS ... 2-12
SECTION 3 THEORY OF OPERATION
INTRODUCTION ... 3-1
GENERAL DESCRIPTION ... 3-2
DETAILED CIRCUIT DESCRIPTION 3-3
VERTICAL ATTENUATORS ... 3-3
Input Coupling ... 3-3
Buffer Amplifier and Gain
Switching Network ... 3-4
Paraphase Amplifier ... 3-5 CHANNEL SWITCH AND
VERTICAL OUTPUT ... 3-5
Delay Line Driver ... 3-6
Vertical Output Amplifier ... 3-6
A/B Sweep Separation Circuit . 3-7 TRIGGER AMPLIFIERS AND
SWITCHING ... 3-7
Internal Trigger ... 3-7
Internal Trigger Amplifier ... 3-8
Line Trigger Amplifier ... 3-8
A TRIGGER Generator ... 3-9
A Trigger Level Circuit ... 3-9
A Trigger Level Comparator . . 3-9 A Schmitt Trigger and TV
Trigger Circuit ... 3-9
A SWEEP Generator AND
LOGIC ... 3-9
A Miller Sweep Generator ... 3-10
A Sweep Logic ... 3-11
ALTERNATE B SWEEP ... 3-11
B Miller Sweep Generator ... 3-12
B Trigger Level Comparator . . 3-12
Runs After Delay ... 3-12
B Delay Time Position
Comparator ... 3-12
B Sweep Logic ... 3-12
Alternate Display Switching
Logic ... 3-13
B Z-Axis Logic ... 3-13
HORIZONTAL ... 3-13
Horizontal Preamplifier ... 3-14
X-Y Amplifier ... 3-15
Z-AXIS Amplifier ... 3-15
Dc Restor
SECTION 3 THEORY OF OPERATION (cont)
Power supply AND Probe
ADJUST ... 3-17
Power Input ... 3-17
Preregulator ... 3-17
Inverter ... 3-18
Crt Supply ... 3-18
Focus Circuit ... 3-18
Low-Voltage Supplies ... 3-19
Probe Adjust ... 3-19
SECTION 4 PERFORMANCE CHECK PROCEDURE
INTRODUCTION ... 4-1
PURPOSE ... 4-1
STRUCTURE ... 4-1
TEST EQUIPMENT ... 4-1
LIMITS AND TOLERANCES ________4-1
PREPARATION FOR CHECKS . . 4-2 INTRODUCTION TO
PERFORMANCE CHECK STEPS 4-3
VERTICAL ... 4-4
HORIZONTAL ... 4-8
TRIGGER ... 4-12
EXTERNAL Z-AXIS AND Probe
ADJUST ... 4-15
SECTION 5 ADJUSTMENT PROCEDURE
INTRODUCTION ... 5-1
PURPOSE ... 5-1
STRUCTURE ... 5-1
TEST EQUIPMENT ... 5-1
LIMITS AND TOLERANCES ________5-1
ADJUSTMENT INTERACTION . . 5-1 PREPARATION FOR
ADJUSTMENT ... 5-1
INDEX TO ADJUSTMENT
PROCEDURE STEPS ... 5-3
Power supply AND CRT DISPLAY 5-4
VERTICAL ... 5-6
HORIZONTAL ... 5-14
TRIGGER ... 5-20
EXTERNAL Z-AXIS AND Probe
ADJUST ... 5-24
SECTION 6 MAINTENANCE
STATIC-SENSITIVE COMPONENTS 6-1 PREVENTIVE MAINTENANCE ... 6-2
Page
SECTION 6 MAINTENANCE (cont)
INTRODUCTION ... 6-2
GENERAL CARE ... 6-2
INSPECTION AND CLEANING . . 6-2
LUBRICATION ... 6-4
TROUBLESHOOTING ... 6-5
INTRODUCTION ... 6-5
TROUBLESHOOTING AIDS ________6-5
TROUBLESHOOTING
EQUIPMENT ... 6-6
TROUBLESHOOTING
TECHNIQUES ... 6-6
CORRECTIVE MAINTENANCE ________6-10
INTRODUCTION ... 6-10
MAINTENANCE PRECAUTIONS . 6-10 OBTAINING REPLACEMENT
PARTS ... 6-10
MAINTENANCE AIDS ... 6-10
INTERCONNECTIONS ... 6-10
TRANSISTORS AND
INTEGRATED CIRCUITS ... 6-11
SOLDERING TECHNIQUES ... 6-12 REMOVAL AND REPLACEMENT
INSTRUCTIONS ... 6-13
Cabinet ... 6-13
Cathode-Ray Tube ... 6-13
Power-Supply Shield ... 6-14
Filter Circuit Board ... 6-14
Alt Sweep Circuit Board ... 6-15
Attenuator Circuit Board ... 6-15
Timing Circuit Board ... 6-16
Bottom Shield, Attenuator and
Timing Circuit-Board Module .. 6-17
Front-Panel Circuit Board ... 6-17
Main Circuit Board ... 6-18
REPACKAGING FOR SHIPMENT 6-20
SELECTABLE COMPONENTS . . 6-20
SECTION 7 OPTIONS
SECTION 8 REPLACEABLE ELECTRICAL PARTS SECTION 9 DIAGRAMS
SECTION 10 REPLACEABLE MECHANICAL PARTS
Accessories
CHANGE INFORMATION