Lowrance X-1550 User Manual

INSTALLATION AND OPERATION MANUAL

MODEL

GRAPH RECORDER

X-1550

LITHO IN U.S.A. 988-0083-08

LOWRANCE

•

12000 E. SKELLY DR. TULSA, OKLA. 74128

ELECTRONICS,

INC.

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High Speed (46 MPH.)

SUPPRESSION: SENSITIVITY: ON

OFF

1/2

-

POSITION

(1

Il-i

NOTE POOR RECORD CAUSED

BY NOT USING SUPPRESSION

WHEN AT HIGH SPEED.

...-

— r

Figure

44

Speed (46 M.P.H.)

High

SUPPRESSION: ON — ADEQUATE SETTING

SENSITIVITY: ON

a

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•

¾ - .

—

-

.

1/2 POSITION

r

-

—

-

Figure

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45

a.

RANGE: 0 TO 80 FEET PULSE WIDTH: 100

SUPPRESSOR: MINIMUM

MICRO-SECONDS LINES: OFF

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SENSITIVITY: 3/4 PAPER SPEED: MAXIMUM

21

Figure

46

Example:

Press: LINES

SPECIFICATIONS — X-1550 GOT Depth Ranges:

Feet, fathoms,

Operating Frequency:

50

second); accuracy percent.

Pulse

(duration (30-2000ps

Operating Voltage:

Minimum: 10 Maximum: 15 volts DC

Operating

0.7 to 1.8

printing density

power.

Output

1600 watts

(200

Weight:

8.5 lb.

Dimension:

With Gimbal Mount: Width - 12¼"

Height Depth

Width Height

Deth

NOTICE

Periodically

Set the initial transmitter ducer Face with

width tolOO to remove

pulse

micro-seconds. collect. Oil and dirt on the face

1

together

kHz

Length:

then SCALES and

0, 0,

meters.

(50,000 cycles per

of

pulse): 200-l000gs programable)

volts DC

Current:

amps depending

and

is within 0.6

on

output

will reduce

prevent sounding.

HELP!

If

sonar chance to

for

repair.

Assistance can often be ex-

tended Write or call one of our Authorized Service Centers or the Lowrance

Electronics, Inc., vice

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

Please detail the

are partment may

the inconvenience of

Power:

watts

V

typical peak-to-peak.

RMS)

(3.9 Kg)

-

8%"

-

51/4"

,.

-

91/2"

-

71/2"

-

51/4"

wash the Trans- INSTRUMENT.

your

If it is determined that

must be structions will be

SCHEMATIC DIAGRAM AND PARTS LIST

Should

Diagram Lowrance TRUELINE RECORD-

ER, Lowrance

East homa 74128. Be sure and

the Model Number and Serial

Number of

and water

soap

oil film that

any

sensitivity

or

A PROBLEM? LET US

have a

you

unit,

by telephone

Department

experiencing.

unit.

returned,

and Parts list for

send

Skelly

problem

please give

before

help

us

sending

or letter.

Customer Ser- in

Tulsa,

problem you

Our Service De-

be able to save

returning

full

shipping

provided.

desire a Schematic

you

to PARTS

$1.00

Electronics,

Drive, Tulsa,

your

Inc.,

SONAR

may

with

a

OK.

your

LIST,

12000

OkIa-

give

even

your

it in

you

unit

in-

.

us

INDEX

Introduction 2

How It Works

Installation

j

Basic

Operation

Suppressor

Paper Speed

.

Limit

Paper

®

.

Graphs

GRAYLINE

Range

Lower Limit Upper

Lines

Marker

Scale ....

End Of

How To Read

Paper Loading

Stylus Replacement

Dos and Donts

Troubleshooting Advanced

Surface

ee,

Transmit and Print Alternate Transmitter Pulse Width

Specifications Service Information 22

Operation

Clarity

a

oms,

.

Control

e ers

(5CC)

2

3

4

5 6 6

7

8

9

10 10 14

16

16 16 16

7

17

21.

20

1

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I INTRODUCTION example,

The Lowrance X-1550 is a

highly sophisticated recording

sounder. Thanks to a mic-

depth rocomputer,

more than der in its

of the

to meet the

varying depth

select the unit's

suppression

paper speed,

"Gray

recorded information: The

ented Lowrance variable sion

system

false

signals

real

ones,

with

the

vide clear

tions. The what

your

rolled and stored inside the case.

Small boat sonar

routinely

depth, and locate fish. The

the X-1 550

ordinary.

Figure

Fish: 17 ft.

Depth:

the X-1 550 can do

other

any

price range.

changing

bottom

level,

is at

conditions,

system

and boat

and the

Line".used

your finger tips

speed.

sensitivity setting,

depth range,

to

enhance the

soun-

depth

Full control

demands of

water

You can

degree

of

pat-

not

without

but is

line

gray

signals

permanent

only

synchronized

function to

under all condi-

suppres-

filters out

distorting

record of

the

pro-

sonar has "seen" is

used to measure water

examine bottom

goes

Clues to the

1

35 Ft.

TRULINE RECORDER BOTH SEND AND

RECEIVED SIGNALS ARE INDICATED ON

systems

capability

far

beyond

composition

are

contours,

of

the

of the bottom are of

bait fish are

from

solitary game

a

continuous

about bottom contours and sub- merged shipwrecks

together

shown

separately

tions of

easily distinguished

display

than six inches can be

moss or

algae,

can be identified

speeds monly

tic "arched"

tinguishes roundings — layers

different tected under vertical movement of

down),

HOW

electronically regulated drives a

the

paper. tached to this belt. When the

stylus

small mark is made. This is called

the zero

surface of the water.

2 19

individual fish are com-

recorded with a characteris-

signature

them from their sur-

temperatures

good

can be shown.

IT WORKS

When the

right edge

unit

lightweight

of the

The

marking stylus

is at the

top

and

mark,

RECEIVES SIGNALS.

GRAPH PAPER.

—

given

fish

schools

—

there is

of information

—

fish closer

—

concentra-

plankton

—

at

trolling

which dis-

of water with

can be de-

conditions,

fish,

(up

turned

is

of the

on,

motor

belt located at

recording

is at-

paper

represents

and

or

an

a

the

set to 260

transmit

If

the LOWER LIMIT is set to

ts.

390

feet,

would be 390

pulse from 600

initial

pulse

micro-seconds.

The

transmitter

be increased from the initial at

time

any

pressor maximum

added to the initial transmitter

width is

pulse microseconds. In other

the LOWER LIMIT is set to 420

and the

feet,

trol is rotated to the maximum

the transmitter

ition, would be 1220 micro-seconds.

initial + 800

(420

Earlier, tionship target separation.

increases, resolution is

the

pulse

resolution becomes much

The X-1550 allows

advantage

it

possible

transmitter

from what the

selects Limit.

according

The initial transmitter

width can be set from 30

2000

jis

keyboard

No other

can

today

After

setting

width,

pulse

trol can

noise

by increasing

width.

For

example,

with the LOWER LIMIT

the initial

feet,

pulse

width

would be

260

the initial transmit

Its. Finally,

feet and

width

remains at

pulse

by rotating

control clockwise. The

amount of

approximately

Suppressor

=

below,

width can

the

pulse

words,

pulse

1220.)

the

600

point

Sup-

width

800

con-

width

we talked about the rela-

between

target separation

degraded.

width

is

of this fact

width

pulse

As

pulse

However,

decreased,

better.

to take

you

by making

and

width

or

to override the initial

width

pulse

micro-computer

selling

to the Lower

pulse

to

ps

by entering

it on the

as shown below.

in

graph

give

the market

this feature.

you

the initial transmitter

pulse

initial

ts

con-

the

still be used to cancel out

suppressor

the

if a 50

transmitter and the tated to

pulse turning

minimum will restore the unit to a

50

The X-1550 will

transmitter tom of the ride the

guish

width from the

on the front of the two will not be confused. For

if

example,

pulse the

transmitter

pos-

displayed depth

set the initial transmitter

width,

pulse

keyboard, LINES and SCALES

if

same time.

and/or the scales were turned

this will turn them back on. To turn

them back off

the SCALES independently.

simultaneously.)

This will override the micro-

computer's initial transmitter desired

initial transmit

this width will be

settings

trol is returned

computer.)

To return the unit to the control

of the

press SCALES

This will

normal

width is

pulse

Suppressor maximum,

width would be 850

the

Suppressor

transmitter

/.ts

pulse

paper

micro-computer.

control is ro-

the transmitter

control to

width.

pulse

display

width at the bot- when

you

the initial transmitter

scale

depth

a zero is

paper,

pulse

a 100

width will be

paper

will be

simply press

width desired on the

setting. (Note:

j's

as 0100. A 50

pulse

as

0050,

displayed

and then

(Note:

again, press

key

Do not

selection and set the

pulse

printed

width so that the

transmitter

displayed

width would be

while a

as 50. To

pulse

the amount of

press

keys

If the lines

or the LINES

press

width to the

pulse

When an

width is

fixed for all

until

changed

or until con-

to the micro-

micro-computer, simply

0 and then the LINES and

at the same time.

keys

revert the

operation.

unit

back to

selected,

Re-

j's.

the initial

over-

To distin-

pulse.

printed

in

on

Its

50-foot

both the

at the

off,

either

key

them

set,

depth

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