What to do if my Tektronix 191 seems faulty but might be due to settings?
Incorrect control settings on your Tektronix Inverter can sometimes create the illusion of a problem. Review your settings to ensure they are correct before assuming there is an actual fault.
Details all warranty terms and conditions for Tektronix instruments.
Describes the instrument's purpose and operating range.
Lists physical attributes of the instrument.
Lists included accessories with the instrument.
Details output specifications and limitations.
Details power input voltage and fuse requirements.
Introduces operating procedures and controls.
Discusses power input voltage settings and fuse selection.
Notes ventilation requirements for proper operation.
Explains the function of front and rear panel elements.
Guides initial setup and basic operation for familiarization.
Overview of the instrument's circuit details.
Visual representation of the instrument's functional blocks.
Description of the oscillator circuit and its controls.
Describes the signal attenuation circuitry.
Explains how comparison voltage is determined.
Details the amplitude detection circuitry.
Describes the feedback amplifier mechanism.
Explains the voltage regulation circuit.
Describes the instrument's power supply circuits.
Discusses routine cleaning, inspection, and lubrication.
How to clean the instrument's exterior and interior.
Lubrication procedures for moving parts.
Checking for physical defects and heat damage.
Notes on component testing procedures.
Guidance on when and how to recalibrate.
Procedures for component replacement and repairs.
How to order replacement parts.
Methods for soldering on circuit boards and terminals.
Steps for replacing components and covers.
Lists necessary test equipment for performance checks.
Details specific test equipment required.
Initial setup for performance checks.
Required instrument settings for checks.
Verifying amplitude output accuracy.
Verifying variable amplitude control function.
Verifying accuracy across different amplitude ranges.
Verifying frequency performance.
Verifying output amplitude stability over frequency.
Notes and guidance for calibration procedures.
Lists necessary calibration equipment.
Details specific test equipment required.
Index for calibration steps and record keeping.
Calibration step for the -11V power supply.
Check for correct +6.2V power supply output.
Check for correct +450V unregulated power supply output.
Check ripple on power supply outputs.
Adjustment procedure for the -11V power supply.
Calibrates amplitude tracking across ranges.
Calibrates the amplitude output level.
Verifies the function of the variable amplitude control.
Verifies accuracy across different amplitude ranges.
Calibrates each frequency range for accuracy.
Verifies the accuracy of frequency ranges.
Verifies the output amplitude regulation.
List of capacitors used in the instrument.
List of diodes used in the instrument.
List of inductors used in the instrument.
List of transistors used in the instrument.
List of resistors used in the instrument.
Mechanical parts list for the front and rear of the unit.
Mechanical parts list for the chassis.
Mechanical parts list for the cabinet.
Conditions for voltage and waveform measurements.
Includes power cords.
Includes 5 ns coaxial cable.
Includes 50 ohm termination.
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General