Tektronix 7A16P Manuale utente

Tektronix,

Inc.

P.O.

Box

500

Beaverton,

Oregon

97077

070-2308-00

Product Group 45

Tektron~

COMMITTED

TO EXCELLENCE

PLEASE CHECK FOR CHANGE INFORMATION

AT THE REAR OF THIS MANUAL.

7A16P

PROGRAMMABLE

AMPLIFIER

INSTRUCTION

MANUAL

Serial

Number

___

~_~~

______

First Printing

MAY

1978

Revised JUL 1983

Scans

Arlel.Media

Artek Media

1042

mme

Cir

. SW

Rochester,

55902

www.artekmedia.com

High

lution

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Contents of this publication may not

reproduced

any

form without the written permission of Tektronix, Inc.

Products of Tektronix, Inc. and its subsidiaries are covered

by U.S.

and

foreign patents and/or pending patents.

TEKTRONIX, TEK, SCOPE-MOBILE,

and

are

registered trademarks of Tektronix, Inc. TELEQUIPMENT

a registered trademark of Tektronix U.K. Limited.

Printed

U.S.A. Specification

and

price change privileges

are reserved.

INSTRUMENT SERIAL NUMBERS

Each instrument has a serial number

a panel insert, tag,

or stamped

the chassis. The first number or letter

designates the country of manufacture. The last five digits

of the serial number are assigned sequentially

and

are

unique to each instrument. Those manufactured

the

United States have six unique digits. The country of

manufacture

identified

follows:

BOOOOOO

100000

200000

300000

700000

Tektronix, Inc., Beaverton, Oregon, USA

Tektronix Guernsey, Ltd., Channel Islands

Tektronix United Kingdom, Ltd., London

Sony/Tektronix, Japan

Tektronix Holland, NV, Heerenveen,

The Netherlands

7A16P

INSTRUCTION

TABLE

CONTENTS

SAFETY

SUMMARY

PREFACE

SECTION

1 -

INTRODUCTION

Specifications

Summary

Programmable

Features

Front-Panel

Buttons

Front-Panel

Controls

Block

Diagram

SECTION

2 -

MANUAL

OPERATION

Installation

Controls,

Connectors,

and

Indicators

INPUT

Connectors

A-B

Switch

Megohm

-50

Ohm

Switch

AC-GND-DC

Switches

POSITION

Control

VARIABLE

(CAL

IN)

Control

GAIN

Adjustment

BANDWIDTH

Switch

POLARITY

Swi

tch

VOLTS/DIV

Switches

IDENTIFY

Swi

tch

Functional

Check

Preliminary

Setup

Power-up Sequence

Procedure

General

Operating

Information

Signal

Connections

Vertical

Gain Check and

Adjustment

Input

Coupling

VOLTS/DIV

and

VARIABLE

POLARITY

Switch

Trace

Identification

vii

1-1

1-6

1-7

1-8

1-10

2-1

2-3

2-4

2-5

2-6

2-8

2-9

7A16P

INSTRUCTION

Applications

General

Peak-to-Peak

Voltage

Measurements

CAC)

Instantaneous

Voltage

Measurements

CDC)

Comparison Measurements

SECTION 3 -

PROGRAMMING

Introduction

the

IEEE

488 Bus

Typical

System

Types

Instruments

Types

Messages

Maximum

Number

Devices

Maximum

Cable

Length

Electrical

Specifications

Bus

Signal

Lines

Data

Bus

Transfer

Bus

Management Bus

Bus Messages

7A16P

Interface

Function

Subsets

Source

Handshake

Acceptor

Handshake

Talker

Listener

Service

Request

Remote/Local

Parallel

Poll

Device

Clear

Device

Trigger

Controller

Addressing

the

7A16P

Addressing

Schemes

Primary

Addressing

Secondary

Addressing

Determining

Device

Addresses

2-10

2-12

2-14

3-2

3-3

3-4

3-5

3-6

3-8

3-10

3-11

3-12

3-14

7A16P

INSTRUCTION

High-Level

Messages

Explanation

Command

Syntax

Set

Commands

Query

Commands

Messages

with

Multiple

Messages

with

Multiple

The

SET?

Query

Messages

with

Sets

Query

Responses

Low-Level Messages

Set

Messages

Query Messages

and

Transmitting

Messages

Transmitting

Set

Messages

Transmitting

Query Messages

Serial-Poll

Responses

Power on

Command

error

Execution

error

Busy

Sets

Queries

WARNING

3-15

3-16

3-17

3-20

3-21

3-22

3-23

3-24

3-25

3-29

3-32

3-36

3-40

3-41

The

remaining

portion

this

table

contents

lists

the

Servicing

instructions.

These

Servicing

instructions

are

for

use

qualified

personnel

only.

avoid

electrical

shock,

not

perform

any

servicing

other

than

that

called

out

the

Operating

instructions

unless

qualified

so.

SECTION

4 -

MAINTENANCE

Preventive

Maintenance

Cleaning

Exterior

Interior

Visual

Inspection

Lubrication

Troubleshooting

Aids

Schematic

Diagrams

iii

4-1

4-2

4-3

7A16P

INSTRUCTION

Circuit-Board

Illustrations

Component-Locator

Grids

Component and

Wiring

Color

Code

Semiconductor

Lead

Configurations

Multi-Pin

Connector

Identification

Rear

Interface

Connector

Locations

Troubleshooting

Equipment

Semiconductor

Tester

Multimeter

Test

Oscilloscope

Plug-in

Extender

Troubleshooting

Procedure

Check

Control

Settings

Check

Associated

Equipment

Visual

Check

Instrument

Performance

Check

Voltages

Trace

the

Signal

Check

Individual

Components

Repair

and

Readjust

the

Circuit

Specific

Troubleshooting

Info.

Microprocessor

System

Self

Test

Addresses

Corrective

Maintenance

Obtaining

Replacement

Parts

Standard

Parts

Ordering

Parts

Soldering

Techniques

Attenuator

Circuit

Board

Circuit

Boards

(except

Attenuator

Board)

Metal

Terminals

Component

Replacement

Semiconductor

Replacement

Front-Panel

LED's

Free-Standing

Components

4-3

4-5

4-6

4-7

4-8

4-9

4-10

4-11

4-13

4-14

4-15

4-16

REV A

JUN

1979

7A16P

INSTRUCTION

Circuit

Board Removal

Removal

LED

and

SWITCH

Boards

Removal

ATTENUATOR

and

ACTUATOR

Boards

Removal

AMPLIFIER,

SHIELD,

and

PROGRAMMING-LOGIC

Boards

Recalibration

After

Repair

Repackaging

for

Shipment

SECTION 5 - CIRCUIT DESCRIPTION

Introduction

Block

Diagram

Attenuator

Input

and

Coupling

Circuit

X10

Attenuators

Buffer

Amplifier

Low

Impedance

Attenuator

Amplifier

Polarity

Amplifier

Gain

Amplifier

Gain

Amplifier

Positioning

Circuit

Signal

Splitter

Microprocessor

System

MPU

and

Memory

PIA's

Power-up

Circuit

Clock

Circuit

Front

Panel

Buttons

Switching

Logic

GPIB

Interface

IEEE

488

Data

Bus

Acceptor

Handshake

Source

Handshake

Readout

Circuit

Basic

Readout

Operation

Summing

the

Time

Slots

Selecting

Rowand

Column

Currents

Encoding a

Time-Slot

MPU

Control

Example

REV A

JUN

1979 v

4-17

4-18

4-19

4-20

5-1

5-3

5-5

5-6

5-7

5-8

5-9

5-10

5-11

5-12

5-13

5-14

5-15

5-16

5-17

5-18

7A16P

INSTRUCTION

SECTION

6 -

CALIBRATION

Introduction

Tektronix

Field

Service

Performance

Check

Cali

bration

Test

Equipment

Required

General

Calibration

Equipment

Alternatives

Checking

Programmable

Features

Performance

Check

Procedure

Checking

Front

Panel

Functions

and Readout

Checking

Balance

Checking

Gain

Checking

Rise

Time

Checking

Bandwidth

Calibration

Procedure

Preliminary

Procedure

for

Calibration

Check/Adjust

MPU

Clock

Speed

Check/Adjust

Balance

Adjust

Low

Frequency

Gain

Check/Adjust

Gain

Adjust

Positioning

Adjust

Input

Compensation

Adjust

Attenuator

Compensation

Adjust

Low

Frequency

Compensation

Adjust

High

Frequency

Compensation

Check Bandwidth

SECTION

7 -

ELECTRICAL

PARTS

LIST

SECTION

8 -

DIAGRAMS

AND

CIRCUIT

BOARD

ILLUSTRATIONS

SECTION

9 -

MECHANICAL

PARTS

LIST

6-1

6-2

6-5

6-6

6-7

6-8

6-9

6-10

6-12

6-13

6-15

6-16

6-17

6-18

6-19

REV A

JUN

1979

7A16P

INSTRUCTION

SAFETY

SUMMARY

This

manual

contains

safety

information

which

the

user

must

ensure

safe

operation

this

instrument.

WARNING

information

intended

protect

the

operator;

CAUTION

information

intended

protect

the

instrument.

The

following

are general

safety

precautions

that

must

observed

during

all phases

operation

and

maintenance.

[WARNING'

Ground

the

Instrument

reduce electrical-shock hazard, the mainframe (oscilloscope) chassis

must

be properly grounded. Refer to the mainframe

manual for grounding information.

Not

Operate

Explosive

Atmosphere

not

operate this instrument in

area

where flammable

gases

or fumes

are

present. Such operation could cause

explosion.

Avoid Live Circuits

Electrical-shock hazards

are

present in this instrument.

The

protective instrument covers

must

not

be removed

operating

personnel. Component replacement and internal adjustments

must

referred to qualified service personnel.

Not

Service

Adjust Alone

not

service or make internal adjustments to this instrument unless anotherperson, capable

giving first aid and resusci-

tation, is present.

[WARNING'

Warning

Statements

Warning

statements

accompany

potentially

dangerous

procedures

this

manual.

The

following warnings

appear

this

manual

and

are listed here

for

additional

emphasis.

avoid electrical shock, disconnect the instrument from the power source before soldering.

avoid electrical shock, disconnect the instrument from the power source before replacing components.

vii

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