Lowrance LRG 1500 User Manual

INSTALLATION

AND OPERATION MANUAL

MODELS

AND

LRG-1500M

TRULINE

LRG-1500A

RECORDER

LOWRANCE

Printed in U.S.A.

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988-0088-02

/

12000 F. SKELLY DR.. TULSA.

L!

ELECTRONICS,

OKLA.

INC.

74128

NOTICE

Periodically

move

sensitivity

of/film that

any

or

wash the

may

Transducer Face with

collect Oil and dirt on the face will reduce

may

even

prevent sounding.

and water to re-

soap

GOT A PROBLEM? LET US HELP!

If

have a

you

before

help

Assistance can often be extended

problem

sending

one of our Authorized Service Centers or the Lowrance

Customer Service

Please detail the

ment

If

tions will be

be able to save

may

it is determined that

provided.

with

it in for

Department

problem you

your

repair.

you

unit must be

your

sonar

unit,

please give

by telephone

in

are

OK.

Tulsa,

experiencing.

(Toll-free 1-800-331-3889).

the inconvenience of

returned,

or letter. Write or call

Our Service

returning your

full

us a chance to

Electronics, Inc.,

Depart-

unit.

shipping

instruc-

SCHEMATIC DIAGRAM AND

Should

ranceTRUELINE Electronics, Inc.,

sure and

desire a Schematic

you

give

Diagram

RECORDER,

12000 East

send

Skelly

$1

Drive, Tulsa,

us the Model Number and Serial Number of

PARTS LIST

and Parts list for

.00 to PARTS

LIST,

Oklahoma 74128. Be

Low-

your

Lowrance

your

SONAR INSTRUMENT

25

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SPECIFICATIONS

Depth Ranges

—

LRG-1500A/M

1SOOA

0- 60 feet 0-120 feet 0-30 meters 0-360 feet 0-60 meters

1500M

0-18 meters

INDEX

Whatltls

How It Works

3

Operating Frequency

Pulse

Length: (duration

Operating Voltage:

Output

Current

Power

Operating

Weight Dimension:

Minimum

Maximum

With Gimbal Mount

Width 121/4"

Height Depth

With Gimbal Mount

Width 31.1 Height

Depth

.

of

pulse):

METRIC

22 cm

13.3

.192 kHz

second);

0.6

percent

200-l200ps.

10 volts DC

15 volts DC

1.8

0.7 to printing

power.

.900 watts

watts

(112

8.5 lb.

Instrument

Width

8%"

51/4"

Instrument

cm Width 24.1 cm cm

(192000 cycles

accuracy

amps depending

density

typical peak-to-peak

RMS)

(3.9 Kg)

Height Depth

METRIC

Height Depth

is

and

Only

within

output

per

on

9V2" 71/2" 51/4"

19 cm

13.3 cm

What It Tells You

"

i

Installation Operation

Scale 7 Sensitivity

Suppression

Paper Speed

Linew

Gray How To Read

Paper Loading

Stylus Replacement Stylus

Belt

Maintenance Do's and Don'ts

Graphs

Replacement

4 6

7

7 8

8

9

10 13

19

20 22

23

Specifications

24

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WHAT IT IS

'Sonar" is an abbreviation

developed Sound

feet

as a means of

—

when transmitted

second as

per

meaning

tracking

through

compared

_____

enemy

to 1100

)DD)flflDflflDflflflfl)

1

Fig,

In

simple

transmitted into the water. When the

Since the between the transmitted

the

send and receive the them.

PRINCIPLE OF SONAR

terms,

distance to the obstacle determined.

speed

an electrical

impulse

of sound in water is known

and the

signal

sound

waves,

"sound water

navigation

submarines

—

travels at

through

SOUND TRAVELS

FASTER

air.

IN WATER

and

ranging."

World War II.

during

approximately

MORE THAN 4

AS IT DOES IN AIR

)fl)flfll

4800 FEET PER

is

converted into a sound

wave strikes an

received echo can be measured and

as

—

and constant

electronic sonar unit can both

Ap

well as

time, measure,

SECOND

obstacle,

IN

WATER

wave and

it

rebounds.

—

the time

and

record

It was

4800

TIMES

DO

SECTION

Do Do use the

Do use the post.

Do Do Do clean the paper.

a

carry

carry a pencil

keep

spare

tape

empty

the recorded

stylus

fuse,

from a new roll or

cardboard core from the last roll of

to make notes on the

DON'T SECTION

DON'T

Don't Don't

Don't

OPEN

pull store

forget

Don't rotate the Don't use

THE

the

platen assembly

any objects

to

tape

stylus

cloths,

oily

stylus

paper

paper.

to attach it to the

and roll of

belt,

paper

paper.

graphs

for future reference.

belt and wheels with alcohol after

inside

the

paper

belt

strong

WHEN THE UNIT IS ON.

down when the

the to the

up.

solvents or abrasive cleansers.

or behind the

case

take-up

stylus

core.

CASE

take-up spool.

on the

take-up

five rolls of

every

is at the front.

viewing

door.

TRANSMITTED

GNAL

AND RECEIVED

'ECHO"

- ---—-

2

Fig,

The

Lowrance Model LRG-1500A/M

specifically designed

peak power, (112 has a

"gray that

clarity

identified.

easily

Full control demands of

can select the unit's paper speed,

information. The

filters out false

With the

permanent

1

I

L((((((((((w

watts

line"

even a

of the varying

and the

patented

signals

line function to

gray

record of what

SIGNAL

TARGEt

for

sport

RMS)

capability,

single

system

bottom

sensitivity degree

fish

without

your

( (

K K

((K

SENT BY LOCATOR BOUNCES BACK

TIME LAPSE INDICATES DISTANCE

fishermen. It

features

and

hovering just

is at

conditions,

graph

easy

provides easy-to-read

your finger tips

recorder is a

has 900 Watts

to

read

nine

inches off the bottom is

water

depth

straight

to meet

selling, suppression level, depth

of

Lowrance

distqrting

provide)clear

sonar

line" used to enhance the

"gray

Variable

has 'seen" is rolled and stored

suppression system

the real

signals

ones,

under all conditions.

compact

typical peak-to-

line

graphs

the

and boat

but is

synchronized

FROM

TO TARGET

unit

recordin'gs,

with such

changing

speed.

You

range,

recorded

not

only

The

inside

SYMPTOM WHAT TO

A. On/Off switch is

and

stylus

B.

On/Off switch is

zero

tom

C. The unit is

mark,

signals

paper

but no echoes or bot-

ON,

not move

D. Recorder marks are faint or dim D.

E.

Recorded marks are

is torn

paper

TROUBLESHOOTING

"ON",

don't move

but

by stylus

but the

paper

have

does

"ON",

very heavy;

DO

A.

Check

at

battery; tighten power

connector

check connections

fuse;

B. Be sure the transducer is

into the unit and

ged ducer is in contact with the water

C.

Tape Paper

on

take-up post

Clean stylus

E. Bend the

pressure

to cardboard

viewing door;

stylus

on

paper.

replace

slightly

the trans-

to reduce

cord

plug-

spool

the

the case.

2

23

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MAINTENANCE

NOTE: platen

the

to remove

Black carbon

oil-free pressure

from

After

should be

carbon dust. All mechanical

haven't worked DO NOT DO NOT wash

remove HIGH VOLTAGE

attempt

Corrosion

splices,

The

stylus may

assembly

when

platen

changing

stylus.

dust is created

to clean the

rag

compressed

moving parts

five rolls of

every

wiped

Strong

connections should

loose.

any type

apply

the unit with

salt

accumulations,

should be made

electronic section.

occur

may

or at the

checked

periodically

The face of the transducer,

periodicallywith

film. This is

oily

essential to have

be

pulled

down.

is

the

viewing

air

may

if the air is

paper,

clean with a soft

solvents

of lubricant

is

present

by any

at the

battery

mild

connections.

and cleaned as

soapywaterto

the water.

Periodically,

cloth

dampened

page

the rubber roller

with

16, Figure 29).

alcohol,

in front of the

damaged

paper

if it is

Always

during

move

rolls. Remember

the

recording process.

door and metal

be used to blow dust

and free of oil.

dry

stylus

moistened

rag

belt and

the

or abrasive cleaners

be checked

to the motors or

running dust,

in the

power plug,

if mounted

on the

to

water.

Wiping

road

or

transmitter section when

unauthorized

grime

in the fuse

All electrical connections

necessary

on the transom

remove

good

paper

improve

any

contact between

drive should

the friction

the

stylus

platen

to the back

to move the

Use a

behind the

platen

out of the case and

the wheels it rides

with alcohol to remove

should not be used.

gear

with a

that's

to be sure

trains.

damp

necessary.

periodically

it

is all

the unit is ON.

person

to

holder or

400

with

accumulated

modify

or

grit sandpaper.

should be washed

road

the transducer and

be cleaned with

on the drive shaft.

when the

side of

belt down

soft,

Low

paper.

away

they

cloth to

repair

cord

power

should be

grime

(See

on

No

the

or

a

HOW IT WORKS

When the unit

lightweight

is attached

stylus transmitter is

is called the zero mark,

Fish: 17 ft.

eprh:

is turned

located atthe

belt

to this belt. When the

triggered

35 ft.

TRULINE RECORDER BOTH

RECEIVED SIGNALS ARE

GRAPH

PAPER

an

on,

right edge

and a small

and

represents

electronically regulated

of the

recording

is at the

stylus

mark is made at

the surface of

SEND AND RECEIVES

INDICATED ON GRAPH

paper.

top

thetop

the water.

PULLEY

DRIVE

-STYLUS DRIVE

BELT

STYLUS

LLEY

motor

The

of the

paper,

of the

paper

SIGNALS. 5.

PAPER.

drives a

marking

the

This

3

Fig.

4

The

pulse stylus

reflected the echo can

to the A variable

the

revolution of

stylus,

Each mark will target

continues to

stylus

is

traveling through

makes another

scale

depth

speed

stylus

will burn

the

but

paper

blend into the one before,

will be made,

on the left side of

motor drives the

stylus

move down the

the

water,

mark on the

be read in feet

it to leave a

a

belt,

very

will move

one

a small amoiint before

mark

tiny

of the

edge

when an echo is

and

The

paper.

by comparing

the

viewing

graph. (The paper

paper

permanent,

narrow mark will be made

paper

of the

depth

its location on

area.

black

mark.)

the next revolution.

so that a

composite

at a time.

the sound

while

detected,

object

the

is treated

During

the flexible

by

picture"

the

which

paper

so that

one

of the

3

22

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