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Tektronix Manuals
Test Equipment
381
Instruction manual
Tektronix 381 Instruction Manual
Pal test monitor
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Instruction manual
(139 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Horizontal System
Loop-Thru Input
Ee Eee
Trigger Setting
Operators Safety Summary
Part | Operators Information
Section5
Introduction
Vertical System Characteristics
Horizontal System Characteristics
Chrominance Characteristics
Physical Characteristics
Safety Information
Power Supply
Ac-Powered Operation
Ac Regulating Range
External DC-Powered
INPUTS and OUTPUTS
Probe Connection
Controls, Connectors
Front Panel
Graticule Descriptions
Internal Graticule
External Graticule
Side Panel
Signal Connection
Operation with Probe
Trigger Source Selection
Line Rate Display
Field Rate Display
Digital Line Select Display
Variable Line Select Display
Overlay Display
Vectorscope Operation
Line Sweep Display of Color
Differential Gain (DG) Measurement
Differential Phase (DP) Measurement
External Phase Reference Operation
Using the 015-0438-00 Subcarrier
Oscilloscope Operation
Sweep Rate Setting
Vertical Sensitivity Setting
Servicing Safety Summary
PART Il
Service Information
Preventive Maintenance
Visual Inspection
Multi-Pin Connectors
Transistor and Integrated Circuit
Troubleshooting Aids
Troubleshooting Equipment
Troubleshooting Procedure
Corrective Maintenance
Soldering Techniques
Circuit Board Replacement
Semiconductor Replacement
Test Equipment
Board and Adjustment Location
Recommended Test Equipment
Preliminary Procedures
Resistance Checking
POWER SUPPLY and CRT
Typical LV Power Supply Resistances
Typical Primary Winding Resistances
AC Input Voltage
Vertical System
Typical LV Power Supply Deviation and
Response
Vertical Accuracy
Calibrator
Filter Adjustment
Vertical Response Modes
Noise Check Readings
Filter Check
Horizontal System
TV Sweep Accuracy
Aux Time Base Accuracy
PLL (Phase Lock Loop)
Triggering Response
Theory of Operation
Block Diagram
Vertical Amplifier
Timebase
Unblanking Circuit
Section8
Detailed Description
Loop Thru Input Circuit
Probe Input Circuit
1V Calibrator Circuit
Signal Output Amplifier and 1V Calibrator Circuit
Filter Circuit
THEORY of OPERATION (Cont)
DC Restorer and Vertical Output
Amplifier Circuits
Trigger Circuit
Sync Stripper Circuit
Line Counter and Variable Line Selector Circuits
Readout Circuit
Sweep Generator Circuit
Display Control and Overlay Circuits
Horizontal Mode Control Line States
Horizontal Amplifier Circuit
Unblanking Circuit
Crt Circuit
Low Voltage Regulated Power Supply Circuit
Circuit
Replaceable Electrical Parts
List
Servicing Illustrations
Circuit Board Illustrations
Replaceable Mechanical Parts
Change Information
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Tektronix,
Inc.
P.O. Box 500
Beaverton, Oregon
070-3422-00
Product Group 20
Tektronix
COMMITTED TO EXCELLENCE
PLEASE CHECK FOR CHANGE INFORMATION
AT THE REAR OF THIS MANUAL.
381
PAL
TEST MONITOR
INSTRUCTION
MANUAL
97077
Serial
Number
First Printing MAY, 1982
Revised MAR 1983
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Troubleshooting
Troubleshooting Aids
43
Troubleshooting Equipment
46
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