Tektronix 2215A

2215A Service
TABLE OF CONTENTS
Page
LIST OF ILLUSTRATIONS ........................................ iii
LIST OF TABLES ...................................................... iii
OPERATORS SAFETY SUMMARY ......................... iv
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 CO RD ............................. 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 ...................................... 2-5
REAR PANEL ............................... 2-7
OPERATING CONSIDERATIONS . .. 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
BASELINE TR AC E ....................... 2-9
TRACE ROTATION ....................... 2-9
PROBE COMPENSATION ........... 2-10
SECTION 3 THEORY OF OPERATION
INTRODUCTION ............................... 3-1
SECTION ORGANIZATION ......... 3-1
INTEGRATED CIRCUIT DESCRIP
TIONS ............................................ 3-1
GENERAL DESCRIPTION ............... 3-2
DETAILED CIRCUIT DESCRIPTION 3-3
VERTICAL ATTENUATORS ........ 3-3
VERTICAL PREAMPLIFIERS . . . 3-4
Page
SECTION 3 THEORY OF OPERATION (cont)
CHANNEL SWITCH AND
VERTICAL OUTPUT ................... 3-5
TRIGGER AMPLIFIERS AND
SWITCHING ................................. 3-7
A TRIGGER GENERATOR .......... 3-8
A SWEEP GENERATOR AND
LOGIC ........................................... 3-9
ALTERNATE B SWEEP .............. 3-11
HORIZONTAL ............................... 3-13
Z-AXIS AMPLIFIER ..................... 3-14
POWER SUPPLY AND PROBE
ADJUST ....................................... 3-16
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
INDEX TO PERFORMANCE
CHECK STEPS ........................... 4-3
VERTICAL ................................... 4-4
HORIZONTAL ............................... 4-7
TRIGGER ..................................... 4-11
EXTERNAL Z-AXIS AND PROBE
ADJUST ....................................... 4-14
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 ................................... 5-13
TRIGGER ......................................... 5-19
EXTERNAL Z-AXIS AND PROBE
ADJUST
........................................... 5-23