Harris 994 8047 001 Manuale utente

TECHNICAL

MANUAL

FM-

2.5K

TRANSMITTER

994

8047

001

994

8047

004

•

Fi.o.F1Fas

T.M.

No.

888-1759-004

•

HARRIS

CORPORATION

1985

All Rights

Reserved

Printed:

March

1985

•

MANUAL

REVISION

HISTORY

FM-

2.5K

TRANSMITTER

888-1759-xxx

REV. #

DATE

ECN

PAGES

AFFECTED

002

06/84

27895

Replaced

all

pages.

Added

Manual

Revision

History

page.

003

11/06/84

29204

Replaced

the

following

pages:

Title

Page,

Manual

Revision

History

Page

vi,

7-1/7-2,

7-11/7-12

004

03/04/85

29376

Replaced

the

following

pages:

Title

Page,

Manual

Revision

History

Page

1-5,

2-3,

4-1,

6-3, 6-4,

7-13/7-14

888-1759-004

•

WARNING

THE

CURRENTS

AND

VOLTAGES

THIS

EQUIPMENT

ARE

DANGEROUS.

PERSONNEL

MUST

AT ALL

TIMES

OBSERVE

SAFETY

REGULATIONS.

This

manual

intended

general

guide

for

trained

and

qualified

personnel

who

are

aware

the

dangers

inherent

handling

potentially

hazardous

electrical/electronic

circuits.

not

intended

contain

complete

statement

all

safety

precautions

which

should

observed

personnel

using

this

other

electronic

equipment.

The

installation,

operation,

maintenance

and service

this

equipment

involves

risks

both

personnel

and equipment,

and

must

performed

only

qualified

personnel

exercising

due

care.

HARRIS

CORPORATION

shall

not

responsible

for

injury

damage

resulting

from

improper

procedures

from

the

use

improperly

trained

inexperienced

personnel

performing

such

tasks.

During installation

and

operation

this

equipment,

local

building

codes

and

fire

protection

standards

must

observed.

The

following

National

Fire

Protection

Association

(

NFPA)

standards

are

recommended

references:

Automatic

Fire

Detectors,

No.

72E

Installation,

Maintenance,

and

Use

Portable

Fire

Extinguishers,

No.

Halogenated

Fire

Extinguishing

Agent

Systems,

No.

12A

WARNING

ALWAYS

DISCONNECT

POWER

BEFORE

OPENING

COVERS,

DOORS,

ENCLOSURES,

GATES,

PANELS

SHIELDS.

ALWAYS

USE

GROUND-

ING

STICKS

AND

SHORT

OUT

HIGH

VOLTAGE

POINTS

BEFORE

SERVICING.

NEVER

MAKE

INTERNAL

ADJUSTMENTS,

PERFORM

MAINTENANCE

SERVICE

WHEN

ALONE

WHEN

FATIGUED.

not

remove,

short-circuit

tamper

with

interlock

switches on

access

covers,

doors,

enclosures,

gates,

panels

shields.

Keep

away

from

live

circuits,

know

your

equipment

and

don't

take

chances.

WARNING

CASE

EMERGENCY

ENSURE

THAT

POWER

HAS

BEEN

DISCONNECTED.

WARNING

OIL

FILLED

ELECTROLYTIC

CAPACITORS

ARE

UTILIZED

YOUR

EQUIPMENT,

AND

LEAK

BULGE

APPARENT

THE

CAPACITOR

CASE

WHEN

THE

UNIT

OPENED FOR

SERVICE

MAINTENANCE,

ALLOW

THE

UNIT

COOL

DOWN

BEFORE_

ATTEMPTING

REMOVE

THE

DEFECTIVE

CAPACITOR.

NOT

ATTEMPT

SERVICE

DEFECTIVE

CAPACITOR

WHILE

HOT

DUE

THE

POSSIBILITY

CASE

RUPTURE

AND

SUBSEQUENT

INJURY.

TREATMENT

ELECTRICAL

SHOCK

VICTIM

NOT

RESPONSIVE

THE

A- B-

BASIC

LIFE

SUPPORT.

PLACE

VICTIM

FLAT

HIS

BACK

HARD

SURFACE

AIRWAY

UNCONSCIOUS.

OPEN

AIRWAY

LIFT

NECK

PUSH

FOREHEAD

BACK

CLEAR

OUT

MOUTH

NECESSARY

OBSERVE

FOR

BREATHING

CHECK

CAROTID

PULSE

ABSENT.

BEGIN

ARTIFICIAL

CIRCULATION

BREATHING

NOT

BREATHING.

BEGIN

ARTIFICIAL

BREATHING

TILT

HEAD

PINCH

NOSTRILS

MAKE

AIRTIGHT

SEAL

QUICK

FULL

BREATHS

REMEMBER

MOUTH

RESUSCITATION

MUST

COMMENCED

SOON

POSSIBLE

CIRCULATION

DEPRESS STERNUM

1/2

INCHES

APPROX.

RATE

ONE

RESCUER

COMPRESSIONS

PER

MINUTE

1.2

QUICK

BREATHS

APPROX.

RATE

TWO

RESCUERS

COMPRESSIONS

PER

MINUTE

BREATH

NOTE:

NOT

INTERRUPT

RHYTHM

COMPRESSIONS

WHEN

SECOND

PERSON

GIVING

BREATH

CALL

FOR

MEDICAL

ASSISTANCE

SOON

POSSIBLE.

2. IF

VICTIM

RESPONSIVE.

KEEP

THEM

WARM

KEEP

THEM

QUIET

POSSIBLE

LOOSEN

THEIR

CLOTHING

RECLINING

POSITION

RECOMMENDED

•

FIRST-

AID

Personnel

engaged

the

installation,

operation,

maintenance

servicing

this

equipment

are

urged

become

familiar with

first-

aid

theory

and

practices.

The

following

information

not

intended

complete

first-

aid

procedures,

brief

and

only

used

reference.

It is

the

duty

of all

personnel

using

the

equipment

prepared

give

adequate

Emergency

First

Aid and

thereby prevent

avoidable

loss

life.

Treatment

Electrical

Burns

Extensive

burned

and

broken

skin

Cover

area

with

clean

sheet

cloth. (

Cleanest

available

cloth

article.)

not

break

blisters,

remove

tissue,

remove

adhered

particles

clothing,

apply

any

salve

ointment.

Treat

victim

for

shock

required.

Arrange

transportation

hospital

quickly

possible.

arms

legs

are

affected keep

them

elevated.

NOTE

medical

help

will

not

available within

hour

and

the

victim

conscious

and

not

vomiting,

give

him

weak

solution

salt

and

soda:

level

teaspoonful

salt and

1/2

level

teaspoonful

baking

soda

each

quart

water (

neither

hot

cold).

Allow

victim

sip

slowly

about

ounces (

half

glass)

over

period

minutes.

Discontinue

fluid

vomiting

occurs. (

not

give

alcohol.)

Less

severe

burns - (

1st &

2nd

degree)

Apply

cool (

not

ice

cold)

compresses using

the

cleanest

available

cloth

article.

not

break

blisters,

remove

tissue,

remove

adhered particles

clothing,

apply

salve

ointment.

Apply

clean

dry

dressing

necessary.

Treat

victim

for

shock

required.

Arrange

transportation

hospital

quickly

possible.

arms

legs

are

affected

keep

them

elevated.

REFERENCE:

ILLINOIS

HEART

ASSOCIATION

AMERICAN

RED

CROSS

STANDARD

FIRST AID

AND

PERSONAL

SAFETY

MANUAL

(SECOND

EDITION)

888-1759-002

iii

TABLE

CONTENTS

Paragraph

Page,

SECTION

GENERAL

DESCRIPTION

1-1.

Introduction

1-1

1-3.

Publications

1-1

1-5.

Equipment

Purpose

1-1

1-7.

Physical

Description

1-1

1-10.

Functional

Description

1-2

1-11.

Power

Supplies

1-2

1-13.

Exciter

1-3

1-15.

Circuits

1-3

1-18.

Metering

1-3

1-20.

Control

Circuits

1-3

1-22.

Safety

1-3

1-24.

Equipment

Characteristics

1-4

1-25.

Electrical

Characteristics

1-4

1-27.

Mechanical/Environmental

Characteristics

1-4

SECTION

II.

INSTALLATION

2-1.

Introduction

2-1

2-3.

Unpacking

2-1

2-5.

Returns

and

Exchanges

2-1

2-7.

Installation

2-1

2-9.

Cooling

Air

Requirements

2-1

2-12.

Transmitter

Placement

2-2

2-16.

Component

Installation

2-2

2-30.

Wiring

Connections

2-3

2-37.

Initial

Checkout

2-4

2-43.

Connections

Remote Controls

2-a5

SECTION

III.

OPERATION

3-1.

Introduction

3-1

3-3.

Adjustment

3-1

3-27.

Operation

Output

Power

Below

2500

Watts

3-3

SECTION

IV.

CIRCUIT

DESCRIPTION

4-1.

Introduction

4-1

4-4.

Power

Amplifier (

PA)

4-1

4-9.

Intermediate

Power

Amplifier (

IPA)

4-2

4-14.

Exciter

4-2

4-15.

Power

Supply

4-2

4-18.

Control

Circuits

4-2

4-20.

Filtering

4-3

4-23.

Metering

4-3

SECTION

MAINTENANCE

5-1.

Introduction

5-1

5-3.

Purpose

5-1

5-5.

Station

Records

5-1

5-7.

Transmitter

Logbook

5-1

888-1759-002

•

WARNING:

Disconnect

primary

power

prior

servicing.

•

TABLE

OF CONTENTS (

Continued)

Paragraph

Page

5-9.

Maintenance

Logbook

5-1

5-11.

Safety

Precautions

5-2

5-14.

Preventive

Maintenance

5-2

5-16.

Filter

Cleaning

5-3

5-18.

Blower

Maintenance

5-4

5-22.

Maintenance

Components

5-4

5-24.

Semiconductors

5-4

5-25.

Capacitors

5-4

5-26.

Tubes

5-5

5-30.

IPA

Grid

Circuit

5-5

5-32.

Fixed

Resistors

5-5

5-33.

Variable

Resistors

5-6

5-34.

Transformers

5-6

5-35.

Fuses

5-6

5-37.

Relays

5-7

5-38.

Switches

5-7

5-39.

Indicators

and

Indicator

Switches

5-8

5-40.

Printed Circuit

Boards

5-8

5-41.

Corrective

Maintenance

5-9

5-43.

Troubleshooting

5-9

5-49.

Technical

Assistance

5-9

SECTION

VI.

PARTS

LIST

6-1.

Introduction

6-1

6-3.

Replaceable

Parts

Service

6-1

888-17597002

WARNING:

Disconnect

primary

power

prior

servicing.

LIST

TABLES

Table

Page

1-1.

Electrical

Characteristics

1-5

1-2.

Mechanical/Environmental

Characteristics

1-6

5-1.

Air

Filters

5-3

6-1.

Replaceable

Parts

List

Index

6-2

6-2.

2.5K

2.5KW

XMTR

6-3

6-3.

2.5K

2.5KW

XMTR

6-4

6-4.

Xmtr

Basic

FM2.5H3

6-5

6-5.

Scrn

Motor

Assy

6-6

6-6.

Sw.

Pnl.

Assy

6-7

6-7.

Meter

Pnl

Assy

6-8

6-8.

Frnt.

Pnl

Assy

6-9

6-9.

Enclosure

Assy

6-10

6-10.

Shelf

Assy

6-11

6-11.

IPA

Assy

6-12

6-12.

Pnl

Assy

6-13

6-13.

Meter

Multiplier

6-14

LIST

ILLUSTRATIONS

!Lem_

Page

7-1.

Block

Diagram,

FM-

2.5K

7-3

7-2.

Coarse Plate

Tuning

Chart,

FM-

2.5K

7-5

7-3.

Installation

Layout,

FM-

2.5K

7-7

7-4.

2nd

Harmonic

Filter,

Transmitters

7-9

7-5.

Efficiency

Curve,

FM-2.5H3/FM-2.5K

7-11

7-6.

Overall

Schematic,

FM-

2.5K

7-13

888-1759-003

•

WARNING:

Disconnect

primary

power

prior

servicing.

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