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TEKTRONIX+

INSTRUCTION MANUAL

Tekt ronix, Inc.

P.O. BOX 500

Beaverton, Oregon 97005 Serial Numbw

1.

AFRIL 19%

070-1414-00

A IR F ORCE

Apr 79-ZOO-nEPRIm

673

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F,RGM

TEKTPCJNIX,

INC. FSD

_ .

.

. . .--...

__.-_. . .

TEK INTER-OFFICE

TO

John Martin

FnOM

Frank Gray, SO-PAT

6. ZS. 1991 13:49

p. 2

COMMUNICATION

.

94-540

>,-I’ t

Juno 25, 1991

SlJ%fC.T

GXDEPpermit request

In reeponse to the request to grant pemissLon to the

Government

Industry

Exchange Pro ram

Tektronix operator, marvice and

P

(CPDEP) to reproduce

nstruction

manuals,

Tektronix, fnc. hereby grants such permission

for diatrlbution

of such documents to any GIDEP user that is a full participant

in the Metrology Data Interchange Data Base of GIDEP provided

that all copies of the original work include the entire

copyright notice and ownership statement exactly a-& it appears

in the original, together with the tigend HReproduded with

permieeion.*

This

permission has been approved by the Intellectual

lropsrt committee OF Tektronix,

be prov ded

and a copy of this memo may

to GIDEP to provide the requested permission.

geG&Ay

Group Pa&t Coumal

.-

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*9

‘ T

SECTION 1

SECTION 2

SECTION 3

SECTION 4

577.010~02 Service

TABLE OF CONTENTS

SPECIFICATION

Introduction

Characteristics

Electrical

Collector Supply

Step Generator

Display Amplifiers

Indicator and CRT (Display

Module)

Power Input

Environmental

Temperature

Altitude

Transportation

Physical

Net Weight

Dimensions

OPERATING INFORMATION

Introduction

Preliminary

Function of Controls

577

01 and D2

Familiarization

CIRCUIT DESCRIPTION

General

Block Diagram Description (577)

Circuit Dewiption (677)

Power supply

Step Generator

Step Amplifier

Horizontal Amplifier

Vsrtical Amplifier

Collector Supply

Block Diagram Dsscription

(Dl and 02)

Circuit Description (01 and D2)

Deflection Amplifier

CRT Circui t

l i igh.Voltage Regulator

High-Voltage Output

CRT Control Circui ts

Swags Circuit (01 only)

MAINTENANCE

Introduction

Preventive Maintenance

General

Cleaning

Lubrication

Visual Inspection

Page

1.1

1.1

1-2

1-2

l-3

1-3

1-3

1-3

I-3

I-3

1-3

2-l

2.1

2-l

2-3

2-3

3.1

3~1

3.1

3-2

3-5

3.8

3-8

3-10

3.10

3.11

3-11

3-11

3.12

3-12

3.12

4.1

4-l

4.1

4.1

4.1

Transistors and Integrated Circuits 4-1

Recalibration

42

SECTION 4

SECTION 5

SECTION 6

SECTION 7

SECTION 8

MAINTENA NCE (cont j Page

Troubleshooting

Introduction

42

Troubleshooting Equipment

4-2

Troubleshooting Aids 42

Circuit Board Removal and

Replacement

Rem oval of Main Circuit Board

4.3

Replacing the Main Circuit Board 4-3

Replacing the Side Rail

4-6

Removal of the Col lector Sweep

Board 46

Acce ss to Power Supply Circuit

Board 4-6

Rem oval o f Power Supply Circuit

Board

4-6

Miscellaneous

Max Peak Vol ts-Series Rssistors

Knob Alignment

4.7

Removal of Display Uni t f rom

Mainframe

4.7

Removal of 577.Test Fixture

Interface connector 4.7

Replacement of 577.Test Fixture

Interface connector

4.7

CHECK AND ADJUSTMENT PROCEDURE

Introduction

5.1

Son&s Available 5-l

Tes t Equipment Required

5-l

Short-Form Performance Cheek

Procedure 5.1

Performance Check

5-3

Short-Form Adjustnwnt Procedure 5-23

Adjustment Procedure

5.24

ELECTRICAL PARTS LIST

577

01

D2

DIAGRAMS

Diagrams and Circuit Board

Illustrations

7~1

Vol tage and Waveform Tert

Conditions

7-2

Location of Tes t Points and Adiustmen t$

Diagrams

Circuit Board Il lustrations

MECHANICA L PARTS LIST

Mechanical Parts List

Mechgnical Parts List Il lustrations

8-l

CHANGE INFORMATION

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The 577-01

or 02 Curve

Tracer and Disalav

Unit

is the

mainframe of a curve tracer ~ystcm. The plug-in test

fixtures are covered in separate service manuals.

The system is a dvnamic curve tracer that permits the

display of characteristics of a variety of devices.

The 577 isdesigned to bolt to the display module that is

available in either a storage (01) or non-storage

(WZ)

ersion.

*

3.5 kV accelerating potential ensures a bright display on

the 8 x 10 division (IBinch DI 1.27 cm/&v) internal

b

graticule.

The 577 features include pulsed steps, calibratetl step

offset. step polarity tracking with collector supply polarity,

independen t horizontal and vertical magnifiers, and auto.

matic display positioning when used with the 177 Test

Fixture. When urcd with the 177 Test Fixture. the display

dims automatically when the collector supply

voltage

is

reduced r” zero.

The collector supply. 0 to 1600 volts in five ranges. is

continuously variable within each range.

A step qenerator supplies either current or voltage steps.

Current steps are 5 nA/Step to 200 mA/Step and voltage

steps we 5 mV/Step t0 2 V/Step. Single or repetitive steps

of up to IO Steps per family (approximately 1 to 95 stepa

per family in STEP X.1) can be applied to the device under

test.

When using the 177 Standard Test Fixture, vertical

current limiting protects the device under test. When the

device under test current cauw the display to exceed 2.5

times full-screen vertical deflection for a short time, the

collector supply is disabled if the MAX PEAK POWER

WATTS setting is above .6 for serial numbers B010200,and

up (577-01) and 8010120 and up (577.D2),or theSERIES

RESfSTORS witch is below 8 k for serial numbers below

8010200 (577.Dl) and 8010120 (577.WZ).

The horizontal display amplifier measures voltage ranging

from 5 mV/DIV to 200 ViDlV and base voltage from

5mViD lV TO ZVIDIV,. The STEP GEN position of the

HORlZ VOLTS/DIV witch permits the step generator

output to be displayed. Illuminated knob+.kirt readout is

provided on the horizontal and base-step switches.

A safety ‘interlock provides operator protection from

hazardous potentials. Interlock can be defeated from the

test fixture.

This instrument is intended to be operated from a

single-phase earth-reference power source having one

current.carrying conductor (the Neutral Conductor) near

earth potential. Operation from

POWW

sources where both

currentarrying conductors are live with respect to earth

(such as phase-twphase on a threewire system) is not

recommended, since only the Line Conductor has

over.c”rrent (fusel’protection within the instrument.

This instrument has a threewire power cord with a

three-terminal polarized plug for connection to the power

source and safety earth. The safety-earth terminal of the

plug is directly connected to the instrument frame. For

electric-shock protection, insert this plug only in a mating

outlet with a safety-earth contact. The color-coding of the

cord conductors is in accordance with recognized standards.

The electrical and environmental characteristics shown

are valid for instruments operated in an ambient

temperature range from +l@C (t5O”F) to +40°C (t104”F)

after a five-minute warmup, if calibrated at t2O”C (t58”FJ

to

t3o c

(+86’~).

CHARACTERISTICS

ELECTRICAL

hllectnr sllnolv

~~~~

oltage anges

I

6.5 V 25 v

I

IOOV I 4oov I 16OOV

Max PI--’

- ~~~~~~- .^ . 1

^_.

--

--A 1 0.15A 1 0.04A

-..--,

.Pz s

8

l-l

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