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General| Bandwidth | 100 MHz |
|---|---|
| Channels | 2 |
| Vertical Sensitivity | 2 mV/div to 5 V/div |
| Maximum Input Voltage | 400 V (DC + AC peak) |
| Rise Time | 3.5 ns |
| Vertical Resolution | 8 bit |
| Input Impedance | 1 MΩ || 20 pF |
| Power Requirements | 90 to 250 V AC, 48 to 440 Hz |
| Trigger Modes | Auto, Normal, Single |
| Display | CRT |
| Weight | 17 lb (7.7 kg) |
Overview of the Tektronix 2235 oscilloscope features and capabilities.
Lists standard and optional accessories shipped with the instrument.
Specifies the ambient conditions for verifying electrical characteristics.
Refer to Operators Safety Summary for power source, grounding, and safety.
Information on line voltage, power cord, and fuse for instrument setup.
Instrument's input voltage range and frequency capability.
Details on the detachable three-wire power cord and grounding.
Location and procedure for verifying or replacing the instrument's line fuse.
Guidance on maintaining adequate instrument cooling for ventilation.
Descriptions of instrument controls, connectors, and indicators for operator familiarity.
Details on power switch, power indicator, and probe adjust controls.
Description of vertical controls and connectors.
Description of horizontal controls, including sweep speed and position.
Explanation of trigger modes, slope, level, source, and view controls.
Description of rear panel connectors, including EXT Z-AXIS.
Internal graticule markings for accurate measurements without parallax.
Guidelines for reliable signal measurements using proper grounding.
Information on connecting input signals using probes or coaxial cables.
Explanation of input coupling capacitor precharging for signal stability.
Procedure for making measurements, including Trace Rotation and Probe Compensation.
Instructions for aligning the CRT trace with the horizontal graticule lines.
Procedure for compensating oscilloscope probes for accurate measurements.
Procedure to set up the instrument for commonly used oscilloscope displays.
Instructions for setting up front-panel controls to obtain a baseline trace.
Control settings for horizontal sweep and display.
Control settings for the B trigger level and slope.
Control settings for the A trigger mode, slope, level, and source.
Procedure for obtaining a signal display on the CRT.
Procedure for obtaining a magnified sweep display.
Procedure for obtaining a delayed sweep display.
Procedure for making measurements using the delayed sweep feature.
Procedure for obtaining a single sweep display.
Procedure for displaying signals in X-Y mode.
Procedure for displaying TV line-rate and field-rate signals.
Overview of the section's content, including block diagrams and schematic descriptions.
Description of digital logic and linear device conventions used in the manual.
General circuit description of the 2235 Oscilloscope's main functions.
Detailed explanation of each major circuit within the instrument.
Description of vertical attenuator circuits controlling input coupling and gain.
Explanation of AC, GND, and DC coupling methods for input signals.
Description of amplifier stages combining high impedance and high speed.
Description of the amplifier converting single-ended to differential signals.
Description of vertical preamplifier stages driving the Delay Line Driver.
Explanation of channel switching and vertical output amplifier functions.
Description of the amplifier providing final signal amplification for CRT deflection.
Explanation of internal trigger signals driving the sweep generator.
Description of the amplifier buffering external trigger signals.
Description of the amplifier providing line-frequency trigger signals.
Description of the circuit supplying trigger signals to the A Sweep Generator.
Circuit generating a signal for the A Trigger Logic based on comparator output.
Circuit producing a linear voltage ramp for horizontal deflection.
Generator producing a linear voltage ramp driving the Horizontal Amplifier.
Controls sweep generation and intensity levels for display.
Circuitry controlling alternate B sweep displays and sweep-switching signals.
Generator producing B sweep ramp, functioning similarly to A Miller Sweep Generator.
Circuit determining trigger level and slope for B triggering signal.
Circuit allowing B Sweep generation independently of B Trigger signals.
Circuit comparing A Sweep sawtooth voltage to delay time position control voltage.
Circuit generating control signals for B Miller Sweep and B Z-Axis Switching Logic.
Logic controlling horizontal amplifier sweep switching and B Z-Axis logic.
Circuit driving horizontal CRT deflection plates.
Amplifies input signals for Horizontal Output Amplifier and selects display modes.
Amplifies Channel 1 signal for application to the Horizontal Preamplifier.
Controls CRT intensity level via input signals.
Produces CRT control-grid bias and couples DC/AC components.
Converts AC power line voltage into voltages needed for instrument operation.
Provides regulated DC output voltage for the Inverter circuitry.
Changes DC voltage from Preregulator to AC for secondary circuits.
Provides voltage for the CRT inverter circuit.
Develops focus voltage from the -2kV supply via a voltage divider.
Supplies utilizing center-tapped secondary windings of the power transformer.
Circuitry producing a negative-going square-wave signal at the PROBE ADJUST connector.
Overview of the performance check procedure and its purpose.
Verifies Performance Requirement statements and serves as an acceptance check.
Lists required test equipment for performance and adjustment procedures.
Describes the procedure's structure into four independent subsections.
Specifies tolerances valid for instrument operation under specific ambient conditions.
Identifies interactions between adjustments affecting each other.
Instructions for preparing the instrument before performing adjustments.
Procedure for checking vertical deflection accuracy, range, and controls.
Procedure for checking horizontal sweep accuracy, linearity, and controls.
Procedure for checking trigger modes, sensitivity, and ranges.
Procedure for checking external Z-axis input and probe compensation.
Sequenced instructions to return the instrument to conformance with Performance Requirements.
To return the instrument to conformance with Performance Requirements after checks or repairs.
Procedure structured into four independent subsections for adjustment.
Specifies tolerances applicable to the instrument undergoing adjustment.
Identifies interactions between adjustments affecting each other.
Instructions for preparing the instrument, including cabinet removal.
Lists required test equipment for the Adjustment Procedure.
Procedure for checking and adjusting DC power supply levels.
Procedure for adjusting vertical amplifier gain and balance.
Procedure for adjusting horizontal amplifier gain and sweep parameters.
Procedure for adjusting trigger offset, sensitivity, slope, and centering.
Procedure for checking external Z-axis operation and probe adjustment.
Precautions for handling components susceptible to static discharge damage.
Information on cleaning, visual inspection, lubrication, and performance checks.
Minimizing dust accumulation and maintaining cabinet integrity.
Procedures for inspecting and cleaning internal and external instrument parts.
Information to facilitate location of faults and aid in troubleshooting.
Guidance on using schematic diagrams, board illustrations, and troubleshooting charts.
Illustration showing circuit board locations on the foldout page.
Diagram showing cable distribution and pin locators for signal tracing.
Diagram aiding in troubleshooting power supply problems by identifying loads.
Provides grid coordinates for locating components on schematics and boards.
Charts to aid in locating malfunctioning circuitry and problem areas.
Ensures correct control settings to avoid false malfunction indications.
Verifies input signals, interconnecting cables, and power source.
Inspects for broken connections, damaged components, or semiconductors.
Checks instrument performance or entire unit for misadjustment.
Helps identify the faulty circuit using troubleshooting charts.
Verifies power supply voltages and ripple for proper instrument operation.
Describes techniques and procedures for component replacement and instrument repair.
Precautions to reduce personal injury or instrument damage during maintenance.
Information on sourcing electrical and mechanical parts.
Details on special parts manufactured or selected by Tektronix for specific requirements.
Lists items required for performing maintenance procedures on the instrument.
Information on connecting wires to interconnecting pins and cable assemblies.
Guidance on replacing transistors and integrated circuits.
Procedure for replacing heat-sink-mounted power supply transistors.
General techniques for removing and replacing parts on circuit boards.
Procedures for removing and reinstalling major assemblies like cabinet and CRT.
Procedure for removing and reinstalling the instrument cabinet.
Precautions and procedure for handling and removing the CRT.
Procedure for removing and reinstalling the Filter circuit board.
Procedure for removing and reinstalling the Alt Sweep circuit board.
Procedure for removing and reinstalling the Attenuator circuit board.
Procedure for removing and reinstalling the Timing circuit board.
Procedure for removing the module containing bottom shield and circuit boards.
Procedure for removing and reinstalling the Front-Panel circuit board.
Procedure for removing and reinstalling the Main circuit board.
Information on components that can be selected to alter trigger-system bandwidth.
Instructions for securely packaging the instrument for shipment.
Information required when ordering replacement parts from Tektronix.
Lists assemblies and their corresponding part numbers for identification.
Index providing manufacturer codes, names, and addresses.
Conforms to American National Standard Y1.1 for abbreviations.
Explains the numbering method used to identify assemblies, subassemblies, and parts.
Indicates the Tektronix part number for ordering replacement parts.
Indicates serial numbers for which parts were first used or removed.
Provides item names and descriptions, including U.S. Federal Cataloging Handbook H6-1.
Indicates the code number of the actual part manufacturer.
Indicates the actual manufacturer's part number.
Graphic symbols and class designation letters based on ANSI standards.
Provides assembly numbers and grid coordinates for locating components.
Specifies units for electrical components like capacitors and resistors.
Illustrates color codes for resistors, capacitors, and diodes.
Example demonstrating how to locate components on schematic diagrams and circuit boards.
Illustration and component list for the CRT circuit board.
Illustration and component list for the Attenuator circuit board.
Component list and location information for Assembly A1.
Component list and location information for Assembly A3.
Illustration and component location for the main circuit board.
Component list and location information for Assembly A1.
Component list and location information for Assembly A3.
Component list and location information for Assembly A4.
Illustration and component location for the front panel board.
Component list and location information for Assembly A1.
Component list and location information for Assembly A3.
Component list and location information for Assembly A4.
Illustration and component location for the timing board.
Initial control settings for testing instrument waveforms.
Typical voltage measurements referenced to chassis ground.
Lists test equipment meeting required specifications for testing.
Lists parts mounted on the chassis, often with specific locations.
Lists DC voltages referenced to test points or chassis ground.
Illustrates AC waveforms with corresponding control settings.
Provides specific instructions for instrument operation and troubleshooting.
Instructions for setting initial front-panel controls.
Procedure to verify low-voltage supplies and the -2kV supply.
Warning regarding floating common reference and AC source potential.
Information required when ordering replacement parts from Tektronix.
Explanation of the indentation system for indicating item relationships.
Defines special symbols like X000 and COX used in the manual.
References figures and index numbers for illustrations.
Conforms to American National Standard Y1.1 for abbreviations.
Explains how item names are separated from descriptions.
Index linking manufacturer codes to names and addresses.
Lists standard accessories included with the instrument.
Lists optional accessories available for the instrument.
Provides details on changes made to the instrument's components or circuitry.
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