HP 8081A Service manual

About this Manual

We’ve added this manual to the Agilent website in an effort to help you support

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HP References in this Manual

This manual may contain references to HP or Hewlett-Packard. Please note that

Hewlett-Packard's former test and measurement, semiconductor products and

chemical analysis businesses are now part of Agilent Technologies. We have

made no changes to this manual copy. In other documentation, to reduce

potential confusion, the only change to product numbers and names has been in

the company name prefix: where a product number/name was HP XXXX the

current name/number is now Agilent XXXX. For example, model number

HP8648A is now model number Agilent 8648A.

(

Flio-

HEWLETT

a:~

PACKARD

OPERATING

AND

SERVICE MANUAL

300MHz

RATE GENERATOR

MODULE

S08iA

PART OF THE 8080 HIGH FREQUENCY

PULSE GENERATOR SYSTEM

SERIAL NUMBERS

This manual applies

directly

to instrument serial number

1604G 00101

For instruments

with

lower serial numbers, refer

the

backdating

information

Section 8

this module

manual.

For instruments

with

higher serial numbers, refer

the

Manual

Change

sheets

at the end

this module manual.

0265

HEWLETT·PACKARD

GMBH

1975

'------------

703

BOBLINGEN,

HERRENBERGER

STR. 110, WEST

GERMANY.

--.J

MANUAL

PART NO.

08081-90001

MICROFICHE

PART NO.

08081-90501

Printed in

West

Germany

CERTIFICATION

The Hewlett-Packard

Company

certifies that this

instrument

was

thoroughly

tested

and

inspected

and

found

meet

its

published

specifications when

was shipped from

the

factory. The Hewlett-Packard

Company

further

certifies that its calibration

measurements

are traceable

the

U.S. National

Bureau

Standards to the

extent

allowed by

the

Bureau'$ calibration

facilities, or to the calibration facilities

other

International Standards

Organization

mem

bers.

WARRANTY

AND

ASSISTANCE

This

Hewlett-Packard

product

warranted

against

defects

materials

and

workmanship.

This

warranty

applies

for

one

year

from

the

date

delivpry.

Hewlett-Packard

will

repair

replace

products

which

prove

be defpctiVl'

during

the

warranty

period

provided

they

are

returned

Hewlett-Packard.

No otht-'r

warranty

expn'sspd

implied.

are

not

liahle for

consequential

damages.

Service

contracts

clistonwr

assistancl'

agrel'nwnls

are

availabk

for

Ih'wlt:'tt-

Packard

producl.'i

thal

require

maintenance

a.nd

repair

-sitl'.

For

any

assislann"

conlat'l

your

nearpst

Hewlelt-Packard

Sales

and

Service

Offiee. Addresses are

provided

the

back

this

manual.

---------------------------

List

Contents/Tables/Illustrations

CONTENTS

Page Section 5Adjustments

5-1

Introduction

1-1

Specifications

1-1

Safety Considerations

1-1

Instruments Covered

Manual

1-1

Description

1-1

Options

1-2

Equipment Required But Not Supplied .

1-2

Equ ipment Available

1-2

Recommended Test Equipment

1-2

Introduction

6-1

Abbreviations

6-1

Replaceable Parts

6-1

Ordering Information

6-1

Introduction

5-1

Safety Considerations

5-1

Test Equipment Required

5-1

Alignment Tool

5-1

Performance Checks

5-1

Related Adjustments

5-1

Duty Cycle and Frequency Adjustments.

5-2

Section 1

1-1

1-4

1-6

1-9

1-11

1-14

1-16

1-18

1-20

Section 2

General Information

Installation

1-1

2-1

5-1

5-3

5-9

5-11

5-13

5-15

5-18

Section 6

6-1

6-3

6-5

6-8

Replaceable Parts

6-1

Introduction

7-1

Recommended Test Equipment

7-1

2-1

2-3

2-5

2-6

2-8

2-10

Introduction

2-1

Initial Inspection

2-1

Preparation For

Use

2-1

Installation in

8080A

Mainframe

2-1

Operating Environment.

2-1

Storage and

Shipment

2-1

Section 7

7-1

7-3

Service

7-1

Section 3Operation

3-1

TABLES

3-1

3-3

3-5

3-7

3-9

3-12

3-21

3-24

3-26

.3-28

3-36

3-40

Introduction

3-1

Panel Features

3-1

Operator's Checks

3-1

Operating Instructions

3-1

Operator's Checks

3-1

Initial Control Settings

3-1

Operating Instructions

3-3

Initial Control Settings

3-3

Normal Mode

3-3

Trigger Mode

3-3

External Gate Mode

3-4

Internal Gate Mode

3-4

Table

1-1

1-2

4-1

6-1

6-2

7-1

7-2

Figure

Page

Recommended Test Equipment

1-2

Specifications

1-3

Performance Test Record

4-7

Abbreviations for Replaceable

Parts List

6-2

Replaceable Parts

6-5

Reference Designators

7-1

Schematic Diagram Symbols

7-2

LLUSTRA

TIONS

Page

Section 4Performance Tests

4-1

4-3

4-5

4-7

4-8

4-9

4-10

4-11

4-12

4-13

Introduction

4-1

Equipment Required

4-1

Test Record

4-1

Repetition Rate

Test

4-1

Trigger

Output

Test

4-2

External Trigger Mode (Slow)

Test

4-2

External Gate Mode (Slow) Test

4-3

Manual Function

Test

4-4

External Trigger Mode (Fast)

Test

4-5

External Gate Mode (Fast) Test

4-5

1-1

1-2

3-1

3-2

3-3

3-4

3-5

8081 A

300

MHz

Rate Generator

Module and Supplied Accessories

1-0

Serial Number Plate

1-1

8081 AControls and Connectors

3-0

Test

Set

for Operator's Checks

3-2

Suggested Equipment Setup for

Operating Instructions

3-2

Rate Generator

Output

Trigger

Mode

3-3

Rate Generator

Output

External

Gate Mode

3-4

List

Illustrations/Schematic Diagrams

ILLUSTRATIONS

Figure

4-1

4-2

4-3

4-4

4-5

4-6

4-7

5-1

5-2

6-1

Page

Repetition Rate Test Setup

4-1

Trigger

Output

Test Setup

4-2

External Trigger Mode (Slow)

Test Setup

4-2

External Gate Mode (Slow) Test

Setup

4-3

Manual Function Test

Setup

4-4

External Trigger Mode (Fast) Test

Setup

4-5

External Gate Mode (Fast) Test

Setup.

4-5

Duty Cycle Adjustment Test

Setup

5-2

Frequency Adjustment Test

Setup

5-2

8081 AReplaceable Parts

6-4

SCHEMATIC DIAGRAMS

Diagram Page

Control Board A1

300

MHz

Rate Generator Board A2

Distribution Board

7-9

7-11

7-12

SCREWS

CABLE

808TA

Figure

1-1.

8081 A300 MHz

Rate

Generator Module

and

Suppl

ied

Accessories.

,-------------------------------SECTION

"--~----------------------

GENERAL INFORMATION

1-1

INTRODUCTION

1-2

This

Operating

and

Service manual

contains

information

required

install,

operate,

test,

adjust

and

service

the

Hewlett-Packard Model 8081 A

300

MHz

Rate

Generator

module.

Figure

1-1

shows

the

module

and

accessories supplied.

This

section

covers

instrument

identification,

descrip-

tion,

accessories, specifications,

and

other

basic informa-

tion.

1-3

microfiche

version

this manual

avai-

lable

4 x 6 inch

microfilm

transparencies

(order num-

ber

title

page). Each

microfiche

contains

photo-duplicates

the

manual pages.

The

microfiche

package also includes

the

latest

Manual Changes supple-

ment

as well as all

pertinent

Service Notes.

1-4

SPECIFICATIONS

1-5

nstrument

specifications

are

listed in

table

1-2.

These

specifications

are

the

performance

standard

limits

against

which

the

instrument

tested.

asignificant change

the

instrument.

The

last five

digits are assigned

instruments

sequentially.

The

con-

tents

this manual

apply

directly

the

instrument

serial

number

quoted

the

title

page.

For

instruments

with

lower serial numbers, refer

the

backdating

infor-

mation

Section

this

module

manual.

For

instru-

ments

with

higher serial numbers, refer

the

Manual

Change

sheets

the

end

this

module

manual. In addi-

tion

change

information,

the

Manual Change

sheets

may

contain

information

for correcting

errors

the

manual.

keep

this

manual as

up-to-date

and

accurate

as possible, Hewlett-Packard

recommends

that

you

periodically

request

the

latest Manual Change supple-

ment.

The

supplement

for

this

manual

identified

with

this

manual's

date

and

part

number,

both

which

appear

this

module

manual's

title

page. Complimen-

tary

copies

the

supplement

are

available from

Hewlett-Packard.

HEWLETT

PACKARD

GmbH

[1536G00062

]

BOBLINGEN

Figure

1-1.

Serial Number Plate

1-6

SAFETY CONSIDERATIONS

1-11

DESCRIPTION

1-7

The

Model 8081 A

Safety

Class 1instru-

ment

(it has an

exposed

metal chassis

that

connected

earth

via

the

8080A

system

mainframe). This instru-

ment

has been designed

according

international

safety

standards

and

has

been

supplied in asafe

condition.

1-8

This

operating

and

service manual

contains

information,

cautions

and

warnings

which

must

be fol-

lowed

the

user

ensure

safe

operation

and

main-

tain

the

instrument

in asafe

condition.

1-9

INSTRUMENTS COVERED BY MANUAL

1-10

Attached

the

inside

the

instrument

side

frame

aserial

number

plate (figu re

1-1).

The

first

four

digits

the

serial nu

mber

0nly change

when

there

1-12

The

Model

8081A

0-300

MHz Rate

Generator

module

designed

provide aclock

source

for

another

8080

system

module.

The

8081 Ahas four

operating

modes:

Normal

Trigger

External Gate

Internal

Gate

In Normal mode,

the

rate

generator

free-running

the

repetition

rate

selected by

the

rate controls.

Trigger

mode,

the

rate

generator

bypassed

and

the

Ise

output

merely a

shaped

version

apulse

input

from

either

external

sou rce

amanual

pushbutton.

External

Gate

Mode,

the

rate

generator

output

gated

Mainframe

required.

The

8080A

mainframe provides

housing and power supplies for

the

8081

by agate pulse

from

an external source

amanual

pushbutton.

Internal Gate

mode

can

only

be useed with

8084A

Word

Generator

module.

The

trigger slope

polarity

and

threshold

level

external gate/trigger

in-

puts

adjustable.

1-18

EQUIPMENT

AVAILABLE

1-13

The power supplies

for

the

8081 Aare pro-

vided by

the

8080A

Mainframe.

1-15

The

only

option

for

the

8081 ARate Gener-

ator

asecond

copy

the

operating

and service

manual

which

can

obtained

by ordering

option

910.

1-19

The

8081 A

one

of a

complete

range

rep. rate, timing and

output

modules

that

form

the

8080

high frequency pulse generator system. Repeti-

tion

rates range from

0-1

GHz

and

the

modules are

interchangeable

enable you

purchase asystem

exactly tailored

your

requirements.

1-14

OPTIONS

1-20

RECOMMENDED TEST EQUIPMENT

1-16

1-17

EQUIPMENT REQUIRED BUT NOT

SUPPLIED

operate

the

8081 Amodule, an

8080A

1-21

Equipment required

maintain

the

8081 A

listed

Table

1-1.

Other

equipment

can

substi-

tuted

if it meets

exceeds

the

critical specifications

Iisted

the

table.

Table

1-1.

Recom

nded

Test

Equi

pment

Instrument

Critical Specification Recommended Model Used

Mainframe

8080A

Performance Tests,

Adjustments

Electronic

Counter

350

MHz

frequency

5345A

Performance Tests,

Adjustments

Sampling Oscilloscope >

300

MHz

bandwidth;

182C with Performance Tests,

200

mV/div sensitivity;

1810A

plug-in Adjustments

0.5

ns/div sweep speed;

ohm

input

impedance

Real

Time

Oscilloscope up

MHz

bandwidth;

182C with Performance Tests

1V/div sensitivity;

1804A

and

10 Ils/d

sweep speed;

1821 Aplug-ins

four

input

channels

Oscillator up

10KHz

frequency;

651 BPerformance Tests

1 V

RMS

amplitude;

ohm

output

impedance

Pulse

Generator

250

MHz

frequency;

8082A

Performance Tests

2ns pulse width;

0.5

amplitude; positive-polarity;

ohm

output

impedance;

square wave facility.

ohm

Feedthrough

10100C Performance Tests

Termination

ohm

Tee

Connector

1250-0781

Performance

Tests

Model

8081A

-------------------------------1-3

Table

1-2.

Specifications

TIMING

Repetition

rate:

Period

jitter:

EXTERNAL

INPUTS

Repetition

rate:

Trigger

mode:

Gate

mode:

Input

impedance:

Trigger level:

Sensitivity:

Slope:

Max.

input

voltage:

INTERNAL

GATE INPUT

Gate

duration:

Input

impedance:

Amplitude:

High level:

Max

input

voltage:

EXTERNAL

TRIGGER OUTPUT

Amplitude:

High level:

Duty

cycle:

Output

impedance:

Transition

time

(10%

90%):

Max.

external

voltage:

INTERNAL

OUTPUT

Fan-out*:

Amplitude:

High level:

Duty

cycle:

Output

impedance:

Transition

time

(10%

90%):

Max.

external

voltage:

OPERATING MODES

Norm:

External

trigger:

External gate:

Internal gate:

Manual:

OPTION 910

SIZE

300

MHz

8ranges

0.1 %±50 psec

300

MHz, pulse width;;;'

1,7

gate

duration>

period

int

rep rate,

gate

off

duration>

1period +

50 ntypical

-lV

+1V

200

p-p

neg/pas

selectable

±6V

on>

ns,

off>

50 ntypical

500

p-p

OV±100mV

±lV

500

p-p

100

50% ±10%

ntypical

1.2

±2V

500

p-p

100

50% ±10%

50 ntypical

1.2

±2V

Repetition

rate

determined

front

panel

controls.

Repetition

rate

controlled

externally.

Shaped

input

signal

output

both

internal

and

external trigger

outputs.

Gate signal

turns

repetition

rate

generator

synchronously.

External

input

disconnected.

Generator

gated

through

internal

gate

input.

All

external

functions

can

be triggered

manually

pressing

pushbutton.

Add itional

instrument

operating

and

service manual.

Quarter

mainframe width

*Fan-out: max.

number

8080

system

modules

which can be driven UPDATE ANOV

.-----------------------------

SECTION 2

INSTALLATION

2-1

INTRODUCTION

2. Remove

the

upper

two

feet

from

the

rear

the

BOBOA

mainframe.

2-2

This

section

provides installation instruc-

tions

for

the

Model

BOB1

300

MHz Rate

Generator

module. It also includes

information

about

initial inspec-

tion

and

damage

claims,

preparation

for

use,

and

packag-

ing,

storage

and

shipment.

2-3

INITIAL

INSPECTION

2-4

Inspect

the

shipping

container

for

damage.

the

container

cushioning

material

damaged,

should

kept

until

the

contents

the

shipment

have

been

checked

for

completeness

and

the

instrument

has

been

checked

mechanically

and

electrically.

The

con-

tents

the

shipment

shou

shown

in Figure

1-1.

Procedures

for

checking

the

electrical

operation

are

given in

Section

3. If

the

contents

are

incomplete,

there

mechanical

damage

defects,

the

8081

does

not

pass

the

operator's

checks,

notify

the

nearest

Hewlen-Packard

Sales/Service office. If

the

shipping

container

damaged,

the

cushioning

material

shows

signs

stress,

notify

the

carrier

well as

the

Hewlett-

Packard

office. Keep

the

shipping

materials

for

carrier's

inspection.

The

office

will

arrange

for

repair

repla-

cement

without

waiting

for

claim

settlement.

2-5

PREPARATION FOR

USE

2-6

Installation in

8080A

Mainframe

ICAUTION]

The

following

installation

procedure

must

only

carried

out

qual ified service

personnel.

Remove

the

80BOA

mainframe

top

cover.

4. Insert

the

BOB1

Ain

the

required

posi-

tion

the

BOBOA

mainframe

(there

are

electrical

limitations

the

position).

Secure

the

80B1 A

the

8080A

main-

frame

using

the

two

screws provided.

Connect

the

internal coaxial

cable

from

the

8081 A

the

word

generator,

delay,

output

amplifier

modules

remote

equipment

as required.

Connections

are

Internal

Output

and

Internal Gate. Acon-

necting

cable

for

the

Internal

Output

supplied.

7. Replace

the

BOBOA

mainframe

top

cover.

Replace

the

two

feet

the

rear

the

8080A

mainframe.

2-8

Operating Environment

2-9

The

8081

Awill

operate

within

specifications

when

the

ambient

temperature

between

OOC

and

2-7

operate

the

BOB1

A, it

must

first

instal-

led in

BOBOA

Mainframe

follows:

2-10

Storage and Shipment.

Switch

the

mainframe

LINE

OFF/ON

switch

OFF.

Disconnect

the

power

supply

cable

from

the

rear

the

8080A

main-

frame.

2-11

The

BOB1

can

stored

shipped

tem-

peratures

between

-40

and

The

instrument

should

protected

from

temperature

extremes

which

cause

con-

densation

within

the

instrument.

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