Hp 7470a User manual

,

J,/

m

HRWUTT

PACKARD

"

%

SERVICE

MANUAL

GRAPHICS

PLOTTER

SERIAL NUMBERS

This,manual applies directly to plotters

refix numben 2644V and

2517A.

withwria#

W

hanges described in Sec-

tion IV, this manual also applies to plot-

tenprefixed2308A, 2250A, and 2148A.

For additional important information

about serial numbers, see PLOTTERS

COVERED

BY

MANUAL in Section I.

Copyright

@

HEWLETT-PACKARD COMPANY 1982,1986

16399W. BERNARD0DRIVE, SAN DIEGO, CALIFORNIA 92127

I

MANUAL PART NO. 07470-90000 Printed: SEPTEMBER 1984

I

i

Revision

A:

October

198tj

...

"'-

Table of Contents

TABLE OF CONTENTS

Page Section

.

Page

.

GENERALINFORMATION

.............

1.1

.

Introduction

.......................

13

.

SpcScations

.....................

1.7

.

SafetyConsiderations

.............

1.9

.

Ddption

........................

1.13

.

heVoltage and Fuse

........................

Selection

1.17

.

GroundingRequirements

..........

1.19

.

Plottars Covered by Manual

........

1.24

.

Options

...........................

1.28

.

Accessonen Supplied

...............

1-30

.

Packagingfor Shipment

...........

Rear

Panel Switches (Option

001)

...........................

HP-IBInterface(Option 002)

.....

Rear PanelSwitches(Option

002)

...........................

HewlettPackard InterfaceLoop

(Option 003)

...................

Rear Panel US/A4 Switch (Option

003)

...........................

........................

Proceseor

Read

Only Memory

..............

.........

Random AccessMemory

............

GateArraysA and B

Motor Supply Voltage

Comparator

...................

............

Motor ServoSystems

............

Motor Current Sensor

Pen Down Circuit

................

...

Parta Removal and Replacement

Top

Case

........................

PaperDrive Motor Assembly

(Figure

55)

....................

.........

Pen Solenoid(Figure

55)

........

Pen Drive Motor and Belt

Pen Carriage. Pen Holder. and

Damper

.......................

Pen Stablw

......................

Pinch Rollers

....................

Printed

Circuit Assembly

........

Pinch RollerMechanism and

.............

Paper Drive Shaft

Power Module and

Transformer

...................

............

Power Module Wiring

RecommendedTest Equipment

.....

Troubleshooting

...................

Exchange

Printed

Circuit

Amembly

......................

Drive Motonr andPen

Solenoid

.......................

Troubleshooting Table

...........

Test A

...........................

Test B (SeeTable

55)

............

Diagrams

.......................

PERFORMANCETESTS

................

2.1

.

Introduction

.......................

2.3

.

Basic Operating Test

..............

2.5

.

Hewlett-Packard Graphics

Language

.......................

2.7

.

Test

Program

......................

REPLACEABLE PARTS

.................

3-1

.

Introduction

.......................

3.3

.

ExchangeAssemblies

..............

3-5

.

ReplaceableParts Liat

.............

3-7

.

OrderingInformation

..............

3-9

.

CodeLiat of Manufacturers

........

3-11

.

Designations and

...................

Abbreviations

....................

MANUAL

CHANGES

4-1

.

Introduction

.......................

...............

.

4-4

Serial

Preh

History

4.6.

Changes

...........................

4-7

.

Change

1

........................

4-10

.

Change 2

........................

4-12

.

Change3

........................

415

.

Change4

........................

SERVICE

................................

51

.

Introduction

.......................

.................

53

.

Circuit Description

57

.

RS-232-C/CCm V.24 Interface

(Option001)

...................

TABLES

Tge

Page

Table

.

Page

.

1.1

.

Specifications

.........................

1-1

3-3

.

1-2 LineVoltage Selection

.................

1-2

1.3

.

Power Cord Configuration

.............

13

3-4

.

14

.

AccessoriesSupplied

...................

1-6

2.1

.

7470A HP-GLInstruction Set

..........

2-2

35

.

31

.

Parta Liat. Main PCA. RS.232.C.

3.6

.

Option 001

...........................

3.2

32

Parta Liat, Main PCA. HP.IB

.

41

.

Option 002

...........................

3-5

Parta Liat. Main PCA. HP.IL,

Option 003

...........................

3-7

PartaList. Replaceable

....................

Mechanical Parta 3-10

..............

Manufacturers' Code List 3-12

ReferenceDesignations and

.......................

Abbreviations 3-13

History of

Serial

Refir

.............................

Changes 4-1

Revision

A:

October 1986

iii

Tableof Contanb

Model

7470A

TABLES

(Continued)

4-2

Parta

Lirt,

Main

PCA,

RS-2324.

Option001

...........................

4-3

.

Pam

Lirt,

Main

PCA

HP.IB.

Option 002

...........................

44

.

Parta

Lht,

Main

PC&

HP.IL,

Option

003

...........................

4-5

.

Parta

Lirt,

Main PC& RS-2324.

option 001

...........................

Pae Table

.

ILLUSTRATIONS

Parta

List,

Main

PC&

HP.IB.

...........................

Option 002

4-20

RS-232-C/CCm V.24 IntarfaceSial

bvls

...............................

5-1

Baud

Rate

%action

...................

5-2

..................

HP-IBInterface

Lines

5-3

RecommendedTeat Equipment

.........

5-13

Troublwhwting

.......................

5-15

Fie-

paoe

Fie-

Top CareRemoval

.....................

1-2

5-45

.

Line

VoltageSelection

.................

13

Power Cord Cdguntiona

............

13

5-6

.

Tat

Program

..........................

24 5-7

.

ParformanceVdcationPlot

..........

2-6

58

.

Exploded View

........................

3-11

5-9

.

SchematicDiagram.

RS-232-C.

5-10

.

Option 001

...........................

4-5

5-11

.

Schematic

Diagram.

HP.IB. 5-12

Option002

...........................

4-9

5-13

.

Schematic Diagram. HP.IL, 5-14

.

Option003

...........................

4-15

5-15

.

SchematicDiagnunr. Power Suppk

...

4-23

RS2324/CCTX' V.24 Interface 5-16

.

Circuih

.............................

5-2

HP-IL

Interface

Citr

...............

54

5-17

.

ServoSystamBlock Diagram

..........

5-45

.....................

TopCase Removal

5-6

5-18

.

Paper Drive

Motor

and Pm

Solenoid

.............................

Pen Drive

.............................

Pen Stablw

............................

Pinch

Rollem

..........................

............

ChauiaAuambly Removal

.......

Under Sideof

Chauir

Auembly

Power Module Ramoval

................

PowerModule

Wiring

..................

Schematic Diagram No-

.............

ANSI

Y3214LogicSymbol8

...........

SchematicDiagram. RS-2324. Option

001

..................................

Schematic

Diagram.

HP.IB.

Option

002

..................................

Schematic

Diagram

.

HP.1

L.

Option

.

003

..................................

SchematicDiagram, Pow= Suppliaa

....

Fievirion

A:

October 1986

.

-

Safety

Symbob

Genenl Definitionsof Safety Symbols

Used

On Equipment

International caution symbol (refer

to

manual): the product

will

be

marked with this symbol when it is necessary for the user torefer

to

the instruction manual in order

to

protect against damage tothe

instrument.

4

Indicatesdangerousvoltage (terminalsfed from the interior by

voltage exceeding

1000

volts must be so marked).

Protectiveconductor terminal. For protection against electrical

shock in case of

a

fault. Used with field wiring terminals

to

indi-

cate the terminal which must be connected to pound before

operatingequipment.

Low-noise or noiseless, clean pound (earth)

terminal.

Used for a

signal common,

as

well

as

providing protection against electrical

shock in case of a fault. Aterminal marked

with

this symbolmust

be

connected

to

ground in the manner described in the installation

(operating)manual, and before operating the equipment.

Frame or chassis terminal. Aconnection

to

the frame (chassis)of

lj7

OR

A

the equipmentwhich normally includes allexposed metal struc-

tures.

-

Alternatingcunent

-

000

Direct cuxrent

G

Alternatingor direct current

The WARNING sign denotesa hazard. It calls attention to

a

pro-

cedure, practice, or the like, which, if not correctly performed or

adhered

to,

could result in personal injury.

The CAUTION sign denotes a hazard. It calls attention to

an

op-

eratingprocedure, practice, or the like, which if not correctly

performed or adhered to, could result in damage

to

or destruction

of

part

or

all

of the product.

Revision

A:

October

1986

7470A

lNTROOUCTION

--

section

I

SECTION

I

GENERAL INFORMATlON

Table 1-1. Swcations

1.2.

Thb

dce

manual con- informationnecea-

sary

to

test and

service

the Hewlett-Packard Model

7470A Plotkr.

Thin

manual

is

divided

into

fivesections

aa

foilown:

1

-

General

Information

I1

-

PerformanceTests

III

-

Replaceable Parts

IV

-

ManualChanges

V

-Senrice

13. Information for interfacing and operating the

Model 7470A will

be

found in thefollowing:

Title

-

Interfacingand

Program-

.

ming Manual

OperatingManual

InterconnectionGuide

Programmer's Reference

HP

Psrt Number

14.

This

General Information section contains the

spdicationsand option andaccemoryinformation.

I

1-5.

SPECIFICATIONS

1

1-6.

Table 1-1lists the sptdicatiom for the Model

I

7470A. These spaQfications include the performance

standardsagainst which the plotter

is

tested.

1-7. SAFETY CONSIDERATIONS

1. Safetyinformation relevant

to

the

service

pmcc

dun

being

described

ia

provided in the appropriate

sections of this manual. The Model 7470A and this

manual should be reviewed for safety markings and

instructionsbefore senricework

is

begun.

1 DESCRIPTION

1-10. The Model 7470A accepta digital informationto

produce graphic plots on

X

11 in. or IS0 A4 (210

X

297 mm) paper or special transparency plastic. Dis-

posable pens

are

available in variousink colors.

1-11. The two-pen capability permits more than one

color to

be

used in a plot without the necessity of

stopping the plotter to change pens manually. Pens

are

automatically capped when in the pen stables. A

pen

that is in the pen carriage

will

be automatically

replaced in its stable when the PAPER LOADIHOLD

lever is moved to the LOAD position. Either pen may

MAXIMUM

PLO'ITING AREA

Y

axis:

190

mm

(7.5 in.)

X

axis:

273 mm (10.7 in.) metric

258

mm

(

10.2 in.) English

REPEATABIUTY

With the same pen: 0.1 mm (0.004

in.)

With a differentpen: 0.2

mm

(0.008

in.)

PENVELOCX'IY

Pen down: maximum,

38.1

cm/s (15in./s)

programmable,1

to

38

cm/s in

1cm/s increments

Pen up: 50.8 cm/s (20in./s)

ADDRESSABLE

STEP

SIZE

0.025 mm (0.00098in.)

ACCELERATION

Approximately2g

POWER

REQUIREMENTS

Source:

100,120,220,or 240

V-

-1096,

+5%

Frequency:

48

to

66

Hz

Consumption:

25

W

maximum

SIZE

Length: 432 mm (17in.)

Width:

343

mm

(

13.5

in.)

Height: 127

rnm

(5

in.)

WEIGHT

5.7

kg

(125Ib)

be selected by program control or by pressing the PEN

LEFT

(1)or PEN RIGHT (2)button. To replace a pen

in

its

stable, hold the ENTER button down while

pressing the appropriate pen select button.

1-12 Seven different

line

types

are

provided. Label-

ingcan

be

donein five character setsplua userdefined

characters (except in

HP-IL

Option 003). Text (label-

ing)

can

be

written

in

any direction, upright or slanted.

Character size

is

also

variable.

1-13.

LINEVOLTAGE AND FUSE SELECTION

To prevent damageto theplotter, make

sure the line voltageselectionand fuse

protection

is

correctbefore connecting

line power.

Revision A: October 1986

Section

I

Model

7470A

The line power cord and power outlet

must have a protective earth (ground)

contact.

1-14.

The

7470A

primary power circuit can be con-

figured to operate from any one of the following power

sources ata line frequency of

48

to

66

Hz,

single phase.

Maximum power used is

25

W.

1-15.

Line voltage selection is identified on the label

visible in the small receased window in the rear panel.

Applying line voltage of

220

Vor

240

V

to the plotter while the line voltage

selection is set for

100

V

or

120

V

operation may damage the plotter

circuits.

1-16.

The line voltage selection may be changed to

conform to the line voltage in a particular area Use

the following procedure.

F]

The followingprocedure should

be

per-

formed only by servicatrained person-

nel who

are

awareof theelectrical shock

hazards involved.

a.

Set the plotter LINE switch to OFF

(0)

and dis-

connect the line cord.

b. Remove the plotter top case by removing the

screws indicated in Figure

1-1.

Lift the rear of

the top case and the front will release. When

replacing, make sure the PAPER HOLD lever

extends through the case. and the tabs inside

the front of the top care

align

properly above

and below the bare plate.

11\1\1111"""

REMOVETHESE SCREWS

TO RELEASE

TOP

CASE

74704-2.1

Figure

1-1.

Top Case Removal

c. Line voltage selection

is

determined by the power

input connections to the transformer primary

windings. Table

1-2

lists the wire colors and

transformer contact connections for each line

voltage. Thetransformer pin numbers areiden-

tified on the power module molding. Figure

1-2

illustrates the connections for each voltage.

Changethe wire connections asrequired to con-

form to the desired linevoltage selection.

Make sure the line fuse is correct

accordingtoTable

1-3.

Thefuseholder

cap is the bayonet type. Press and

turn counterclockwise

to

remove,clock-

wise to lock.

d. Change the position of the line voltage label

block so that the voltage selected is right side

up. This block snaps in and out of the power

module molding.

Table

1-2.

Line Voltage Selection

*Wireidentification is by color code:

8

=CRY

928

=

WHT:RED/GRY

958

=

WHT:GRN/GRY

NOMINAL

LINE

VOLTAGE

100

V

120

V

220

V

240

V

TRANSFORMER PRIMARY CONNECTIONS*

1

8

2

928

NC

958

NC

3

958

928

NC

958

4

8

958

5

958

928

6

NC

958

8

7

928

958

928

7--

Model

7470A

--

Section

I

HP

Part

Number

8120-1369;

250

V,

10

A,

1

4

plug rating. For use

in

Australia, New

Zealand

OptionNo.

HP

Part

Number

8120-1351;

250

V,

13

A,

1

4

900

plug rating. For

me

in

United

Kingdom.

Cyprus,

Ni

Zimbabwe,Singapore.

0

NEMA b15P

9

NEMA

615P

SEV

1011

cT3

n

0

(=j

NOTE

AU

plugs

are

viewed

from

connectorend.

L

=

Lineor ActiveConductor

(also

called

"live" or "hot")

N

=

Neutral or Identified Conductor

E

=

Earth or

Safety

Ground

!.A-184

HP

Part

Number

8120-1689;

250

V,

10/16

A,

1

4

plug rating. For

use

in

East and

West

Europe, Egypt

-

HP

Part

Number

8120-1378;135

V,

15

&'.I

6

plug rating. For use

in

Canada, Japan,

Mexico,

Philippinen,

Taiwan,

Saudi

Arabia,

UL

approved

in

United

States.

HP

Part

Number

81204698;

250

V,

15

A,

1

4

plqgrating. For

use

in

Canada,

UL

approved

in

United

Statea

HP

Part

Number

8120-2104;

250

V,

10

A,

1

6

plug rating. For

use

in

Switzerland.

HP

Part

Number

8120-W,

250

V,

10

A,

1

4

plug rating. For

use

in

Denmark.

HP

Part

Number

81204211;

250

V,

10

A,

1

&

plug rating. For

use

in

India,

Republic of

South

Africa.

Figure

1-3.

Power Cord Configurations

Revision

A:

October

1986

1-5

Table

14.

Acceuoricrr

Supplied

OperatingManual

I I

DESCRIPTION

*Intarfacingand Pmgramming Manual

Interconnection Guide

I

1

I

Qm

1

Programnier's

Referam

Card

I I

*.Plotter paper,

8%

x

11

in.,

50

ah&

I

1

I

Package of

5

fiber

tippenr.

0.3

mm nib

width.

1

each

red,

blue, green. black. yellow

I1

HP

PART

NUMBER

I

*Supplied with Option

001

only.

*.Paper

size

A4

(210

x

297

mm)

HP

PartNo.

17802P

may

be

rupplid,based on the destination of the plotter.

1-32.

If

the original packaging material har been

re

c.

Urn a layer of shock-absorbingmaterial atleast

tained. pack the plotter in the same manner as it was

70

to

100

mm

(3

to

4

in.) thick around all side8

received. The following general instructionr should

be

of the plotter

to

provide

firm

cushioning and

used for packingwith commercially availablemateriala. preventmovementinsidethe container.

a. Wrap theplottar

in

heavy paper or plertic.

b. Ure a rtrong hippingcontain-.

d.

Seal

contain- securely.Mark contain-

FRAGILE

to

enrurecarefulhandling.

Revirion

A:

October

1986

Section

111

1

7470A

SECTION

Ill

REPLACEABLE

PARTS

&1.

INTRODUCTION

Table

3.3

=

Option

003

PCA

Table

3-4

=

Mechanical parts

3-2.

Thie section contains information for ordering

parts

for the HP Model

7470A

Plotter. Included are

3

ORDERING INFORMATION

lista

of electrical and mechanical parte and an illue-

tration of mechanical parts.

3-8.

To obtain replacement parts or aesembliee ad-

dress anorder or inquiry to the nearest Hewlett-Packard

3-3.

EXCHANGEASSEMBLIES

Salesand Support Office.Include the HP Part Number,

the check digit (listed under the heading "CD" in the

3-4.

Part numbers for aesembliee that are available parte list).the description. and thequantity required.

on an exchange basis are listed in theparts lists below

the new assembly number. These factory repaired and

3.9.

CODE LIST

OF

MANUFACTURERS

tested assemblies areavailable only on a tradein basis:

therefore. the defective assembly must be returned for

3-10.

Table

3.5

lists the fivedigit code numbers as-

credit. For this reason. aseemblieta required for spare simedto the manufacturers of pans in the Model

7470A

parts stock must be ordered by the new part number. Plotter. These code.numbers appear with the parts in

Tablee

3-1

through

3-4

as an aid for ordering replace

3-5.

REPLACEABLEPARTS LISTS

ment parts directly from the manufacturer.

3-6.

Electrical parts for the

7470A

are lieted in Tables

3-11.

DESIGNATIONSAND ABBREVIATIONS

3.1

through

3-3.

Table

3.4

is

a

list of mechanical parts

which are illustrated in Figure

3-1.

3-12.

Table

34

lista designations and abbreviationsueed

throughout this manual. Abbreviations in the parts

Table

3-1

=

Option

001

PCA lists are always capital letters. In other parts of the

manual both upper and lower case abbreviations are

Table

3.2

=

Option

002

PCA used.

section

m

Table

3-1.

Parta

Liat,

Main

PC&

RS-2.3242,

Option

001

Modal

7470A

Revision

A:

Onober

1986

Reference

Designation

11 1

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r1

cs

r1c4

rtD

hIcb

hlC7

rtcm

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AICl1

hICl2

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hlCl4

A1ClB

~ICIC

A1C17

1IICI#

hICI*

ri

uo

111~21

AIC~~

films

1I1CI4

41CZ5

A1Ub

r1ca7

ria#

A1CJt

riuo

lllC3l

r~c=

~1~33

11144

r

1

C~S

AICU

LICW

LICU

61C3I

LIC40

LlC4l

61El2

4ICI1

41CI1

h1CIl

&IQ4

A1CI1

h1Qb

r1CnS

h1CII

hICI*

rin~o

lllCIll

lllQl2

4ICIl3

41CIl4

4ICIIS

AlU1b

~IDSI

41E1

Ale2

~lP1

~1~2

HPPm

Number

07410-(41~1

07410-Ul2l

n1b0-3m47

OICO-3-7

n 160-3#47

o~mo-2-7

lb-34

OlbO-3#47

OIU-3847

OILO-3.47

OIa-1Yl

01~1Y7

OlaO-JSB

OlU-31U

OIbO-3#47

0110-29.4

01bO-3133

01co-tm47

0100-0111

0140-0202

OI#O-Ztmb

aim-am

OI~O-nw

01U-t3Ob

OILO-~~~S

1

OIL@-1633

OIU-ttJ3

OILO-U~~

om-

OIL@--47

01mo-31~4

OIbO-OlS9

otw-

Ol#O-WH

01-1

OIbO-3#47

OlbO-3847

01~0-3-7

01bO-1847

OIbO--47

1-01

OIL@-01s.

011081

l*Ol-lObS

lMI4M4

lWI-om4

IMl-om4

1901-0704

1.01-0704

1901-0704

IWI-ooso

1101-10#1

11004

1V01-10#1

1.01-0704

1901-10#1

1901-1081

i14-0n

~IIO-QU

2110-411)

2110U8S

2110~79

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Description

DATE CODE 2460

CCI*IAIN

US.=

c

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mano

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znrro

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20400

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0141040121

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1hn- (:I47

01hn-3047

ntna-xnn7

01hO-3047

0

l

h0-JH47

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111t.o- 314.7

0160-3Ul

01a-3U3

01ha-3133

n1h0-3~47

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01ho-3mW

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1SOD1OSX903wP

01h0-01-

OIQtlll

lM91b

1M1-

IMl-om4

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in41102

IY4002

lWOQ2

1.n1-0010

n8XOl

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118~01

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zi1o-05~

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I

4

b

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4

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2

1

Table

3-1.

Parb

List,

Main

PC&

RS-2324,

Option

001

(Continued)

Revision

A:

October 1986

3-3

Reference

Designation

*'

41t3

41441

*1)(2

A1441

AlW

rinio

~lnl3

*inla

41J1

4lJ2

41J3

41~4

41JS

41Jb

~1Jl

AIL1

4191

4102

4193

4101

AIOS

61

QI

4197

4101

41010

4111

A112

A113

4114

4111

611b

6117

41I6

4119

41110

41111

41112

41113

61114

A1115

4111b

41117

A1116

41119

61120

61121

41111

411M2

41113

A111

A1 U1

A1U2

41U3

41U4

41ua

4lUb

AIUI

AlU9

41U10

41U11

61111:

4LU13

61~14

AIU1S

HPPart

Number

2llO-ODU

053s-0031

~l&lm

051s-1677

0515-lD7l

05i&i8n

YI1O-Cm

5OzO-Sm

1000-OSn

1251-3192

lS1-424S

12~1-41~

ldl-424S

1200-0515

1211-3191

9100-1701

1854-0121

18%-0921

1054-0921

1814-0921

10s~-0109

18s-OSO9

1853-as09

tau-0109

1053-1059

I-

0011-34Sb

0699-0.82

Ob99-0902

0699-0901

OLW-0902

0757-02-

0670-3444

0717-0200

0163-105s

07W-0,100

0757-0274

0699-097S

0191-3622

tbw-09n

0690-4403

075f-O;?@@

0757-0010

0757-0401

0119-0213

9690-3431

0696-31SS

1810-0279

1610-0279

1810-0279

3101-la

1HZ@-2715

1020-2753

1820-2715

tea-0412

1820-2744

1620-osov

1R2O-27S4

1a20-1436

lH2O-1436

1810-0990

11120-2470

10:'o-2099

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c

2

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9

1

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7

1

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1

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1

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1

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2

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1

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1

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Description

FUSE .7M1dV.3X.103

nut-n~x

u/~rur

M

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scn~w-rnn~

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100

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TlWIISTOI N?N DUL TO-2206B CD-OY

1111*8XSTOI WM DUL 10-22060 CD-2Y

TIaNSISTDI WM DIIL 10-22011 CD-2Y

TI~~*SI~TOI

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2-2bUO

2bUO

2-2-2(WO

ER400

7'8480

ZR480

2n400

284RO

m4a0

2R460

01114

28460

2R400

18400

80

28400

20400

zn4no

04113

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311400

204RO

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19701

24546

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24546

28480

28460

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18400

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2454.

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295

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11471

1

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211O-WU

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rr

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OID~R

RY

ntscarWInN

0515-I677

051s-1677

0515-1677

0515-l(n7

5Wo-6298

Y)M4m

1200-0575

1751-3192

1251-4245

1251-0091

1d1-424S

I

tno-1157s

1251-3192

W200 20/48

1854-0921

1054-0921

1U54-0921

1854-3921

r

rnl-osov

1853-0509

11153-oso*

1053-0509

?M3791

18~4032

((11 1-3456

Ob99-09R2

0699-OVR1

0699-0902

n~qv-nen~

lW4Cl/O-l~-9091-F

CI-1/8-T0-3lbR

.C

C4-1/0-TO-1001-F

cminas

C4-l/O-TO-lOnl

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C4-118-TO-1211

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OhVT-8975

OhW-3622

0699-0975

C4-1/0-TO-I87>-.F

C4-1/0-TO-1001

-C

0757-0618

C4-118-TO-101-F

0h9V-0763

C4-1/6-TO-3113-•

CI-1 /8-10-4641 -F

2104472

210147~

210447~

3101-1690

5W75447C

U6- 4 n451F.D

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L~ZV~N

1II20-1744

ie;*n-2744

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SM741.S257AN

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evn.1

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IO:'A-OV~~

Section

IlI

Table

3-1.

Parb

List,

Main

PC&

RS-2324,

Option

001

(Continued)

3-4

Revision

A:

October

1986

Reference

Dosignation

a1Ulb

blUl7

A1U18

~1~18

AIUQ

blw1

b1HO

b1v83

bIW4

bIVID

~IHL

AIWI

blT1

o,,

1

2

1

I

1

HPPrt

Number

1818-314

1818-31W

1818-1on

laelale

lQDllB7

190a-aat4

181

1-01-8811

170)-8-

I98a-all4

ivaa-1iia

at-

84114

Description

I(yc11U

I

d

IOIl-U

X

8

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DCDR

n~

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stw

LIN~

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s.11~

zz

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I2

PO-1u In-18Ub

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r.~u

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1818-)1U

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1818-3022

1-1218

1~118~

1un.?-wr4

19112

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1902-3114

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041

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434

Section

m

Table

3-2

Parts

List,

Main

PC&

HP-IB.

Option

002

Revieion

A:

October

1986

Reference

Designation

11

LIC~

LlC2

LlC3

LlC4

Lln

A10

A1CO

AlClO

AlC11

L~CU

LlC13

A1CIS

LlCl6

LlC17

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AlCl9

LlClO

A1CZl

LlC22

LlC23

fi1124

NUS

61C26

LlW

LICII

Ala.

a,

31

LICIl

L1CR2

LlCI3

LlQ4

LlCRS

AlCR8.7.S. 11

L1

Q1

LlCR10

~1~12

LlCIl3

L1Q14

AlDS1

film

11112

A10

LIE4

LlQ

A116

41E7

*la

LlC1

AlCZ

LIF3

AlYl

AIM2

All43

AIM4

A1WS

A1

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LlN7

L1H8

LlJI

A1J2

A1J3

A1J4

A1 J:

HP

Part

Number

0741~01n

orrro-arin

01mas1

OILO-am47

0 160-1047

0168-3147

OlU-3.47

0100-an7

01-3U7

01--7

01-3M7

01&10U

01-3U7

OIW-OZ~~

0140-0202

0110-2904

0160-2306

01a0-0251

0160-3847

011)-3154

0160-3147

8110-2.7,

0160-0159

010-6JOS

016-1

0110-0291

0160-OlS9

0168-3.47

0160-4135

0160-3817

1901-106S

1901-4911

19014W4

1001-4911

190147W

1901-1011

19~1-itei

901-1011

1901-OOSO

1WO-OB78

2110-0~8

2110~

1ZOOdW1

1200-06S4

1800-0634

1200-OU4

1200-ObS4

1-72110-O~SS

2110-0683

21104679

060-1877

061s-1877

c81S-1877

0515-1877

0516-1877

oslf-0031

013s-0031

1200-057s

121-3192

l:!Sl-4745

1251-1323

1i'Sl-4745

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0

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7

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11

1

2

1

3

1

4

1

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2

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2

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Description

DATECODE

2460

MAIN

PC*,

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MAIN

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CACAclToR-CXO tlODUC *7C1oIIOVDC AL

CAPACITOR-CXO .OlUC *lOoJm WOCUR

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CUACITOI-CXD

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CULCXTW-CXD .1U?

*-lax

?OVDC CCR

CUICXTOI-fXD .8IUC *lOO-OZ SOVDC CrI

DIODC4YI RCCT 1N4916 400V

I*

2OOYS

DIODE-MU 104s

DIODE-RMlO4I

DXODE-M0RlO4S

DIODE-M0I1045

OIOOL-WR RECT IN

4002

lQOV 1A

DIODE-CYI IECT 1OOV YA

DIODE-cw

RECT

IOOV

3~

DIODE-CYI

RECT

laov

JA

DIODE-CW IECT 1OOV 3A

D100C-SUllCYlNC IOV 90OMA 2NS DO-3s

LEO-LAY? LUM-YELLOW

CUSCHOLDII-CLIP

TYPC

IOA

250

v

CUILWOLMR-CLIP TYPE IOA 250

V

SOCUll-IC 24-COY1 Dl? DIP-SLM

SOCUCT-IC 40-CON1 Dl? DIP-SLDI

SOCKET-IC 40-COY1 Dl? DIP-SLDR

SOCKCT-IC 40-CON1 Dl? DIP-SLDI

SOCUCT-1C 40-COY1 DIP DIP-SLDI

SOCKET-IC

~-CONT

DIP

OIC-SLOR

Cum-3. 1SA 2SOV

FUSE .7M125V 11X.m

FUSE 1.64 l25VNTO 3X.103

SCREW-TYRO 1113 X 0.5 8UM-LG PAN-WO

SCREW-TYRO

M3

X 0.5 8MM-LG PAN-WO

SCREW-TWRO M3

X

OS8MM-LG PAN-WO

SCREW-THRO 1113 X 0.6UIM-LG PAN-HO

%nEW-THno 1113 X 0.5 8MM-LG PAN-WO

%nEW-THno 1113 X 0.5 WM-LG PAN-WO

WT-WEX

U~LUW

1.7

x

0.5

~.~MM-TMU

NUT-wx

U~LUUI

ni

x

0.s

::

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SOCUCT-SIR? 4-CON1 ST? DIP-SLDI

CONNFCTOR 3-PIN

n

POST rvrc

CONNFCTOR 2-Pln

n

PnST rvrr

connfcrnn 24-?l~

F

CONNFCTOI 2-PIN

n

POST TVPT

Mfr

Code

2~4~1

284~0

2~480

?R4AO

2R480

7M8O

204I0

2WD

2-20680

2WD

sh~rn9

1

2R4RO

ZR408

ShL19

:n400

284IO

78410

LA480

71410

28410

4

Sb219

040

2R410

21410

284.0

14936

28410

204RO

284W

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04713

28480

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mrao

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ZR410

2900

28410

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20410

ZR410

LR480

znro

2H400

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2048U

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umber

o7rm-soin

074-121

oia~3ni

n

1

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OlhO-3147

Olh0-3847

Olh0-3147

018-207

0100-3U7

010-3U7

0100-3U7

018-ZOO4

0100-3041

ISOD~OSX~~~SA~

D~~SC~SOJOSO~YV~CI

0100-29m4

0160-1306

lS00Z26X9OlSB~

o

I

61-.5847

0100-3lS4

nth(-3R47

8100-2179

OlL1-0159

0160-63W

11(10-0159

lSODlOSXVO3SA?

0140-01~~

0160-3147

0 1LO-4RJS

0160-3147

IN4936

1901-4911

1-1-4911

1901-4911

19014704

111501

MSOl

111501

Il(l5Ol

1901-08SO

5W2-Oa79

21104~0

2110-05W

1-641

12n

O-06%

1200-0654

1700-0654

1201-0654

lzoo-o58!-

21

I

o-oh..,

2110-0883

2110-0(110

0515-1877

als-crrt

0515-1177

051s-1877

ORDFI

BY

orsrwr~rrnn

nnncr,

RY

DE..~R

IPTI~N

iz11n-o:7~

1251-3199

t:'71-424-

1251

-

1323

12~1-4247

Table

3-2

Parts

Liut,

Main

PC&

HP-IB,

Option

002

(Continued)

Model

7470A

Revision

A.

October

1986

Rafannw

Designation

A11

AlJ7

A1L1

*I01

&I01

*lo1

*IOS

*I

01

A107

*to#

*I09

*I010

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*lI)3

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*II)S

*II)~

blR7

*I

I)#

*I

I).

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*1I)l1

h1812

*11)1~

*11)14

*11)1S

*IRI~

*11)17

*11)10

~1111s

*IRY~

ht

1)12

*I

~n3

*IS1

*1u1

*I

w

*IUJ

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*MJS

*IW

*1u7

*1w

*1UV

*tuto

*lUtl

*1u12

*IU~J

AIU14

AIUlS

AlU16

AlU17

AIUI~

AlUl1

AIVIII

AlVII2

AIVIIJ

AlVII4

AIWI

AlV1

Description

SOCKET-SRC .-oONT SIC OIC-SLDII

ODmtCtOllSPINM TVCf

CnOKL4MWOZUAXeOM- 1lDMMZ

Tl)YSISTOI WN DYL TO-??O*W CD-ZU

TI)YlIST# Wld DML TO-2ZIU CD-UI

Tl)YSlSTlll WnWL10-??O*b CD-N

TI)Y~ISTQ

own

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tn-rra*~

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H),

m-nrr~

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cw

m-raar~

CD-ru

cr-srmz

1I)YSlSTOl CW T0-2?0&0 CD*2M ?T-JMMZ

TI)Y~ISTO~

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m-zstrb

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tr

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cc

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DUL

5-1-

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a-l*c

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Imr-oSn

1261-31-

SlW-lm

lS84-0.21

I--0.21

lS84-0921

18%-0.21

Mfr

Code

M

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;'114a11

ZYUO

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on

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ZH4OO

6471.1

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no

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mana

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1.701

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24546

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2mm

2YlD

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c

D

1

6

Mfr

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Number

1100-0576

l2Sl-3112

VUlooloHI

I

R?s4-@V?I

leS4-0921

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ns4-n9?i

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1~-.1-0509

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1.~456

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07-7-001s

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I

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lsza-2744

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U14MSKCD

sw74~s2stu

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nchr4rv

MUOT*

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1018-3148

IBIS-3124

IIlCJOZ?

108-1117

IUO-I216

lW-#(

I~-JII~

lW2-3lt4

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8l50-00M

0110-1334

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1

4

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4

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1

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1

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1

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1

2

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2

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2

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1Sf3-8Soq

ltrsl-oso*

lal-0809

18s-ostr

1OSJ-0089

1-

I-s

owv-o*ea

06.9-09U

OLW-O.U

om-ora

O~S-O~W

06.8-3444

om7-oaso

OUJ-loss

am-orso

0m-00ls

0m-tn0

on7-osto

am-oral

U90-343S

tam-rru

86~-ma63

OLW-02U

mr-on

-a

I~IO-O~

lrlo-on*

3101-IS73

1028-271s

ism-zms

ISSO-271s

193)-0412

ISSO-W~~

laao-27

44

ISS~-~J

iem-aaa4

IUO-27S4

1-14

ISSO-2-4

iero-ut*

iuo-row

lea-0.84

11-3146

ISlU12

IS(#-=

cuo-cin

1-1216

la?-#(

IWY-JII~

la?-3114

la?-QU

OlH-OOl

0110-lU1

4

9

@

7

l

S

s

r

I

1

t

s

Y

0

3

J

o

0

o

l

S

o

I

s

9

1

4

s

7

6

I

7

s

5

b

4

I

8

1

3

8

S

0

8

1

I

Table

3-3.

Par&

kt,

Main

PC&

HP-IL,

Option

003

Section

m

Revision

A.

October

1986

3-7

Reference

Designation

I

41C1

*la

41C3

h1C4

41CS

61

U

*1C7

A1C8

41C9

*ICM

lllCll

AlC12

AIC13

AIC14

LICIS

h1CIb

Ale17

hlC1a

AlC19

AIC28

*lczl

AlQI

LlC23

h1Q4

LIC2S

h1Qb

AIClf

LlCtl

LIC~

41CJO

LlCJl

Lln2

film1

*1CnZ

*I43

AICR4

NUS

61CRb

A1U7

h1CRa

LlU9

LICR18

*la11

A1CR12

A1411

AICR14

hlW1

41U

Ali7

AIEl

41E9

61LIO

Alill

*IF1

&IF2

AIC3

*1H1

rrnz

All43

AlMb

AIM

HP Part

Number

O~~~O-LO~OJ

07478-bb103

01R8-3251

81bO-3947

0160-3847

8168-3847

01b8-4812

8188-29.7

01bO-3847

81b8-3147

01b8-3047

81a8-29m4

nlb8-3047

01aC0291

8140-0202

OIb8-4912

0188-2984

01bO-238b

@la@-8228

Olb8-3947

0118-3151

01

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o-

18-81

01W-U00

1881S

18-81

OlC8-81S9

01b8-S147

0160-4835

Olb8-3847

81b8-U@S

81W-3947

8lb8-3M7

1901-1ObS

181-0944

1901-0944

1901-8944

1901-0784

191-1091

1901-0704

190-11

1901-0784

1981-1081

1901-1081

191-08

1980478

478-4081

1208-ObS4

120S-0443

1205-0472

2110-0~

211045m

2118-ObSS

2110-Oa3

2110-0070

m19-1877

051s-1877

0515-1877

OSJS-0031

Mfr

Code

704lO

2

20400

2R4R8

?1)400

211488

711408

I

PO408

2A4l8

20400

2~418

ZR4I8

Sh289

721-

m4a~

21408

2R4I8

9

2R408

CI488

2A4l8

zn400

211488

2n400

28

TITW

2R4I8

2fI408

28480

20488

284R8

29480

20480

1493b

20498

2I4RO

21408

a480

01-

01.1

04713

012.1

04713

012.1

04713

2WIO

20488

8

211488

204

.1R-0

28480

28400

2114IO

2IWO

211488

1B4RI

ZRIOO

JR4110

2n4l11

00000

MfrPart Number

0747n-~01nx

0747n-bb1 a3

01RO-3251

nlh0-3847

0160-31147

81ha-3847

0160-4812

81118-2-7

0160-3047

8160-1847

0160-3847

81n0-29a4

0160-31147

lS8DlOSX9RJSh2

DlllrlC1SOJO5OOYV1CR

0lb0-4~112

0188-2984

01b8-23Ob

lZ8D72CX981SB2

81b0-U47

0180-3194

01b8-3847

o100-2079

01h8-0159

OlW-mDB

0168-(IS9

ISID1OSX983ShZ

0168-81S9

0160-3947

01bn-403s

01b0-3047

0168-2285

81bO-3847

01LO-3147

1W936

1981-0944

1901-0944

IN4082

IN4882

NS11

1114002

NSOI

IN4002

NEOl

MSOI

1901-0050

W-0918

1200-0517

1200-0654

120s-0463

1?05-0472

2110-05(19

2110-0580

1118-0655

2110-OW3

2110-W79

0515-1877

nRDFR

I1

DkSCPtPTlOM

c

0

e

0

1

9

0

7

9

s

9

3

2

0

S

3

b

9

3

9

7

0

4

0

3

0

9

7

9

1

9

2

4

2

4

2

4

2

3

0

3

7

6

7

11

3

8

4

2

1

13

2

1

a

2

1

I

3

1

4

1

I

1

4

2

Description

DATE CODE 2242

H*IY

re*,

HC-II

,

Y~Y

HhIN PC*, W-1L. RLWILT

CWhCITOI-CXD 6WC 3SVDC

CYhCITO*-CXD .81UC *I)(-81 S8VW CCR

C*CLClTOll-CXD .01UC *180-8X SIVDC CLR

CYWITOR-CXD .#1~*188-#1

SWDC

CE~

CYLCITOI-CXD 2?8CC b-SX 188VDC CIR

CYLCITW4XD 2208U*7S-IOX 48VDC

*L

CYICITW-CXD .81W *188-OX S8VOC CCR

CYICITOR4XD .81W +I@@-81S8VDC CrR

CYLCITOR-CXD .81UI +I@@-OXS8VDC CLR

C*~ICITOR-CXD

47ui+-ttr

stv~~

K

CYICITOl-CXD .OIlW *lo(-8X S8VDC CER

CYLCITW-CXD IUF*-18X 3SVDC TL

CYICITOI-CXD lS?C +-SX 58OVDC HtC*

CYACITW4XD 228CC +-¶I 108VDC CER

WICITW-CXD 4W*-281 58VDC

M.

CYLCITQ4XD 27Pt cSX 388VDC HICI

CYLCITW-CXD 22UF+-18X 1SVDC T*

CYLCIm-CXD .81U ,188-81 S8VDC CLR

CYLCITW-CXD M88M*-2UX ZSVDC

AL

CYLCIlOR4XD .01W *180-8X S8VDC CEV

CYICITW-CXD

~~W+S~-IOX

PWDC

Y

CYICITW4XD M88CC +-1OX 288VDC COLYC

CACACITDII-CXO.~~UC

*-I~~VDC

WLVE

CYICITW4XD M88CC +-I01 288VDC C0lYL

CAPMITOR-CXD

~u+-I~x

~SWC

T*

CYICIm4XD M88Ct cl8X 288VDC CflLYE

CYLCITOI-CXD .01UC *188-OX S8VDC UR

CYICITOI4XD

.IU

0-101 SOVDC Cfl

CYACITOI-CXD .81U ,108-8X S8VDC CLR

CYICXTW4XD 128PC cSZ380MC HICh

CYICXTW4XD .81W +l80-01 SOY#: CCR

CYLCITOI-CXD .81U +loo- 01SOVDC CKR

DIOM-CY RECT IW493b 488V

I*

I88N9

DIODE-CUR RLCT 4SV 18A

D10M3W RLCl 4W 18h

DIODL-CW RLCl 4SV 18A

DIOM3W RCCT 4SV

I@*

DIODE-CY RLCT IN4882 108V 1A DO-41

DIOM3W RLCT 1Y4882 180V

I*

W-41

DIODE-CW RLCT 180V 3h

DIOM3W RECT 1N4182 188V 16 DO-41

DIOM-?Y RLCt 108V

SI

DIOM-CW RCCt IN4882 188V

I*

DO-41

DIOM-?W RLCl 188V

f*

DIODL-?W RLCT 180V JA

DIOM-WITCHING

a8V 288U 2NE 00-35

LEO-UY. LUY-YELLOW

~DYTOI o(C-IL)

SDCIIET-IC 48-CON1 DIP DIP-KDR

ma1

¶!MI

HEAT 91WI- US4

FUSLMOLMR-CLIP TYCL IO* 198 V

CUSilmL#n-CLtC TlCL

lo*

?SO V

FUSE-3. 1% 2S8V

FUSE7U12SV281X.O#I

FUSE 1

5A

l2SV NTD 3X

103

SCREW-THlD M3X 0 5 8MM-LO PAN-HD

SCREW-TURD

MJ

x

o

I

OMM-LG

PAN-HD

SCREW-THRO M3

X

0.5 8MM-LC PAN-HD

SCREW-TMRO M3

X

0

S

8MM-LC PAN-HD

NUT-HEX Y/LIYR

11.1

X

0.5

1

4HH-TIK

Section

Ill

".~.-

Model

7470A

Table

33.

Partr

Lirt.

Main

PC&

HP-IL,

Option

003

(Continued)

Revision

A:

October

1986

Raferenca

Designation

*I

ML

hlW11

*lwti

*IYIJ

41

MI

4

41Jl

all2

*I

JJ

hlJ4

el

JS

*l

Jb

*in

h1LI

*IU

*lo1

&l

W

A103

*to1

*lea

*lab

h107

61

a

a109

0191@

*la1

n1~2

hlR3

A1R4

41R5

*I

nb

h1R7

*I

am

*la9

*1R1@

61R11

hlR12

alm13

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003

(Continued)

Section

XII

Table

M.

Parts

List,

Raplaceable

Mechanical

Parts

Rcvision

A:

October

1986

Refemnw

Dosignation

I

?

1

4

3

•

7

8

9

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11

1

13

14

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16

17

18

19

10

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Ir*-

Model

7470A

-

Section

111

Table

3-6.

Reference Doeinnation8and Abbreviation8

A.;

........................

urembly

AT

....................

attenua(or.

Lolator, termination

B.,

.....................

fan: motor

BT

...........................

httrry

C

..........................

capacitor

CP

..........

,...,..........coupler

CR

.............................

diodq

diode

thyrirtor,

varactor

DC

.......

diractional coupler

DL

...

...................

delay line

DS

.................

annunciator,

rignalingdevice

(audibleorvirual):

lamp: LED

A

..............................

am-

rc

........

altsnrating current

ACCESS

.............

accwrory

ADJ

..................

adjurtmont

A/D

........

analog-todigital

AF

...........

audio frequency

AFC

...................

automatic

fkequencycontrol

AGC

..........

automatic gun

conuol

AL

.....................

aluminum

ALC

..........

automatic Ievd

control

AM

.....................

amplitude

modulation

AMPL

.................

amplifier

APC

.......

automatic phue

control

ASSY

..................

urembly

AUX

....................

auxiliuy

rvg

.........................

average

AWG

..........

Amkcanwire

gauge

BAL

.......................

balance

BCD

..............

binuy coded

decimal

BD

.............................

board

BE CU

................

beryllium

copper

BFO

...........

beat frequency

orcillator

BH

...................

binder head

BKDN

..............

breakdown

BP

.......................

bandpur

BPF

...........

bandpur filter

BRS

............................

brur

BWO

........

backward-wave

oreillator

CAL

.....................

calibrate

ccw

.........

counterclockwire

CER

.......................

ceramic

CHAN

...................

channel

em

......................

centimotre

CMO

..........

cabinet mount

only

COAX

.....................

coaxial

REFERENCEDESIGNATIONS

E

..................

mi.esl1an.o~ P

........

d.ctrical connector

elrclricd put (movableportion);

F

...................................

fun plug

........................

...............................

FL filter

Q

truuirtor.

H

.........................

hardware SCR;

HY

.......................

circulator triode thyriotor

.............................

.......

J..

d.ctrical connector R reairtor

.....................

(rtationuyportion) RT thermutor

...............................

jack S rwitch

.....................

K

..................................

day T hnrformer

.............

L

..................................

coil;

.

TB

terminal board

inductor TC

................

thermocouple

M

................................

motor

TP

........................

tmt point

MP

...............

mikellanoour U

...........

inkgrated

armit;

mechanical

put minocirmit

ABBREVIATIONS

................

COEF coefflciont

.....................

COM common

............

COMP comporition

COMPL

...............

complote

................

CONN connector

CP

.............

cadmium plate

........

CRT cathoderay tube

CTL

..........

complementary

tranrirtorlogic

CW

.........

continuour wave

m

.,

.....................

clockwime

D/A

........

digital-to-analog

dB

............................

decibel

dBm

..........

docibelreferred

to

1

mW

dc

..................

direct murent

dog

............................

degm

(temperatureinmd)

or difference

degm(planeangle)

........

"C

...............

degreeCelriur

(centigradd

"F

........

degree Fahrenheit

OK

................

dogma Kdvin

DEPC

..................

depomtd

carbon

DET

.......................

detector

diam

.....................

diameter

DIA

......................

diameter

(udin purrlut)

DIFFAMPL

...

differential

ampliflar

div

.........................

divirion

DPDT

..............

doublepole,

doublethmw

DR

...............................

drive

DSB

.........

double rideband

DTL

.........

diode tranrutor

logic

DVM

......

digitalvoltmeter

ECL

..........

emitter coupled

logic

EMF

.............

elsetromotive

fom

EDP

...........

elcctmnic data

procamring

............

ELECT electmlytic

.......

ENCAP mcaprulatd

.......................

EXT oxtemal

.................................

F farad

...................

FET field-effect

tranirtor

F/F

.........................

flip fldp

FH

........................

flat head

FIL H

....

,

......

fllliater head

FM

......................

fr#quen&y

modulation

FP

.....................

front panel

FREQ

.................

frequency

FXD

............................

fixd

g

..................................

gram

GE

...................

germanium

GHr

.....................

gig~~hartz

GL

..............................

glum

GND

..................

ground(ed)

H

............

,

....

..

............

henry

h

..................................

hour

HET

.................

heterodyne

HEX

..................

hexagonal

HD

...............................

head

HDW

...................

hardwu.

HF

.............

high

frequency

HC

........................

mercury

HI

................................

high

HP

..........

Hewlett-Packard

HPF

...................

high pur

filter

HR

...............................

hour

(d

in paralirt)

HV

.................

high voltage

Hz

...............................

Ha

IC

..........

integrated circuit

ID

.............

inride diameter

IF

...................

intermediate

fmuency

IMPG

............

impregnated

in

................................

inch

INCD

...........

incandercmt

INCL

..................

includdr)

INP

............................

input

INS

.....................

inrulation

INT

.......................

internal

NOTE

All abbreviation8in

the

part8 li8t will be in uppercare.

V

.............................

electron

tuk

VR

...........................

vol-

ng~1ato~

breakdown

diode

W

...............................

cable

hnrmiuion path;

wire

X

................................

mcket

Y

......................

cryrtal unit

(pi&.ctric or

quutt)

Z

....................

tundcavity;

tuned arcuit

kg

.........................

kilogram

kHz

.......................

kiloher&

kn

...........................

kilohm

kV

...........................

kilovolt

Ib

..............................

pound

LC

...................

inductance-

capacitance

LED

............

light-omitting

diode

LF

........,......

low frequmcy

LG

................................

long

LH

......................

loft hand

LIM

.............................

limit

LIN

.................

linear taper

(urdin purrlut)

lin

..............................

linear

LK

WASH

......

lock wuher

LO

......

low local oreillator

LOG

......

logarithmictaper

(uud

in purrlirt)

log

.................

loguithm(ic)

LPF

.............

low purfilter

LV

...................

low voltage

m

.............

metre

(distance)

mA

.................

milliampere

MAX

..................

maximum

Mn

.......................

megohm

MEG

...................

me

(10')

(ured in par& lut)

MET FLM

........

metal film

MET OX

.....

metallic oxide

MF

......

medium frequency;

microfarad

(ured in purrlut)

MFR

............

manufacturer

mg

......................

milligram

MHz

..................

megahe*

mH

....................

millihenry

mho

..............................

mho

MIN

...................

minimum

min

...............

minute(time)

.................................

minute

(plane

angle)

MINAT

..............

miniature

rnm

....................

millirnetre

MOD

.................

modulator

Revision

A:

October

1986

HP 7470A User manual

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