Sharp EL-8130 User manual

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FOREWORD

addition

the

ultra-thin

calculators

which

are

already

having

high

reputations

the

market,

the

model

EL-8130

now

made

public

Sharp

also

full-fledged

8-digit

calculator

that

only

thin.

This

super-slim

calculator

still

provided

with

various

functions

such

audio

input

verifier

and

automatic

power

off

circuit,

etc.

TABLE

CONTENTS

FOLeWwoOrd,

«642

40¢4«0%

startet

ese

SPE

CUICAMONS:

fede.

ast

can

]

DOI

ViCI

etn

Circuit

Diagram

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

Parts

Signal

Position.........

Signal

Wave

Form............

gg)

Parts

GUIGE:..,

a5.

ood

eke

Tone

emitting

keys

SPECIFICATIONS

tat

Excess

aiteitalia

EIGIE

Display:

FEM

type

liquid

crystal

display

digits

for

the

numeral

part,

digit

for

the

symbol)

Operation

capacity:

digits

Memory:

Power

source:

Silver

oxide

battery

(G-10

(SR-1130)

usable

time

600H.

(Please

note

that

only

Union

Carbide

model

389,

and

Ray-O-Vac

model

RW49

equivalent

should

used.)

Dimensions:

68(W)

4.9(H)

124(D)

SERVICING

3-1.

Disassembly

and

reassembly

the

set

Being

only

thin,

this

calculator

requires

great

cares

when

disassembled

and

reassembled

the

servicing.

particular,

pay

attention

not

give

the

liquid

crystal

and

the

buzzer

strong

force.

Disassembly

Remove

the

screw

located

the

center

the

bottom

cabinet

take

out

the

bottom

cabinet.

The

chassis

will

then

removed

together

with

the

top

cabinet.

Pull

out

the

two

batteries.

Carefully

peel

off

the

black

masking

sheet

which

applied

the

chassis.

Carefully

peel

off

the

tape

(silver

color)

which

applied

the

chassis.

The

chassis

being

fixed

pawls

which

are

located

the

top

cabinet.

using

pincettes,

straighten

each

these

pawls,

then

the

chassis,

top

cabinet,

liquid

crystal

and

anisotropic

tape

will

all

independent

from

each

other.

Remove

the

display

spacer

from

the

top

cabinet,

then

the

filter

will

also

removed.

Note:

Different

from

the

above,

for

the

sets

250,000th

unit,

the

display

spacer

cannot

removed

since

directly

fixed

the

top

cabinet.

Refer

““Reasembly

4”

described

later.

The

chassis

and

PWB

are

being

attached

each

other

means

both-side

tape

which

applied

around

the

keys

OFF

and

ON/C.

Holding

the

chassis

one

hand,

carefully

remove

the

PWB

another

hand.

Remove

soldered

leads

the

PWB

(at

three

portions).

Remove

battery

terminai.

@®

Reassembly

For

the

reassembly,

each

take

the

procedures

reverse

those

for

the

disassembly.

However,

will

reguire

the

following

taken

consideration.

Leads

between

the

battery

terminal

and

the

PWB

should

settled

peered

the

sroove

the

chassis.

The

PWB

and

liquid

crystal

should

aligned

exactly

means

anisotropic

tape.

Take

care

not

touch

their

joint

finger

nor

soil

with

impurities.

Key

rubber

(ON/C)

Key

rubber

(OFF)

Red

“SN

Pay

spacer

onl

shown

the

(Fig.

3),

the

key

rubber

and

switch

spacer

should

set

exactly

matching

the

respective

bosses

the

chassis.

Change

the

method

attach

the

display

spacer

and

filter.

(1)

the

250,000th

unit

Caulking

Display

spacer

Aluminium

frame

Display

mask

Filter

Since

the

display

spacer

directly

caulked

the

chassis,

isnot

possible

replace

the

filter

with

new

one.

(2)

After

the

250,001st

unit

Display

spacer

Caulking

Aluminium

frame

Display

mask

aes

CMLL

aaa

TID

Fig.

Filter

Display

angle

With

this

change,

becomes

possible

remove

the

display

spacer.

for

the

sets

250,000th

unit,

can

been

seen

from

the

above

that

the

display

spacer

and

filter

are

fixed

the

top

cabinet

and

you

find

some

trouble

them

the

servicing,

recommended

replace

such

parts

with

new

ones

which

are

applicable

the

sets

after

250,001

unit.

The

Parts

List

and

Guide

carry

only

the

new

parts.

(There

not

interchangeability

all

among

the

filter,

display

mask

and

display

spacer

(1)

and

those

(2).)

3-2.

Cautions

servicing

2-1.

Soldering

the

piezo-electric

buzzer

this

work,

sure

use

low-fusing

point

solder.

Iron

tip

temperature:

190°

10°X

Soldering

time:

Less

than

Soldering

position

seconds

Piezo-electric

buzzer

2-2

Control

adjustment

Leving

the

key

ON/C

depressed,

keep

Vin

3.15

make

surethat

the

signal

within

the

range

2.9

<3.1

ms.

the

above

value

not

satisfied,

adjust

using

the

control

RVR-M5513QCZZ.

Yet,

this

adjustment

not

statisfactory,

change

the

position

jumper

wire

the

opposite

side

the

resistor

330KQ

shown

the

figure

herof

and

again

proceed

with

the

adjustment.

simplanize

adjustment

above,

may

ask

you

adjust

the

Volume

“

most

nice

buzzer sound.

330Ka+

10%

CIRCUIT

DIAGRAM

Hy,

bye

Buzzer

p—t

——

30:2:

6.8

—

1b,

P;,

(off)

Ko.

ELE)

P98

aaa_

Test

~~}

Voo

Ke Kg

GNDVppH3

830KN+10%

1000

100

SR1130x2

PARTS

SIGNAL

POSITION

i=1~8

eae

bene

essed

ees

hood

ent

wos

PRT

oot

Sere

tones

ees)

(OMENS

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PARTS

LIST

DCABBO337CSzz

PFiLW1!154CCZZ

PGUMM

O86CCZZ

PGUMM

1081CCZZ

PGUMM

079CCZZ

DUNTKO338CSZZ_

PWB

unit

PTUBX

1002CCZZ

13.)

QTANZ1159CCZZ

Buzzer

angle

DCABAO340CSZZ_

Bottom

cabinet

(with

mylar

sheet)

PPAPMIOO3CCZZ

Memo

paper

UBAGZ

1083CCZZ

Book

type

case

(Export)

SPAKC2365CCZZ

Packing

case

(Japan)

SPAKC2366CCZZ

Packing

case

(U.S.

SPAKC2434CCZZ

Packing

case

(Other

countries)

TiINSJ1980CCZZ

Instruction

book

(Japanese)

TiNSE!I981CCZZ

Instruction

book

(English)

TiNSMI982CCZZ

Instruction

book

(E,

GANJ1O25CCZZ

Guarantee

card

(Japan)

LSTS!IOO5CCZZ

Service

list

(Japan)

HiLi3O028F/—|

iS:

(Li-3028)

RC—SZIOO6CCZZ

Capacitor

0.1

RC—SZ1IO0O07CCZZ

Capacitor

1uF

RC—KZ!1O07CCZZ

Capacitor

100PF

VRC—MT2BGIOIK

Resistor

1/8W

1000hm

VRC=MT2BG334K

Resistor

1/8W

330Kohm

RVR—M5513QCZZ_

Volume

resistor

500Kohm

VHD!ISI588LI—|!

Diode

151588L1

Pirtinonlirloaloinanlinalwoirioinli=linmiyrimimioivo!o

Pip

ae:

pila

PrP

r\| Pri

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OPO;

ywm(m)

Pr)

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oOo);

Bis

PG,

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oirin\j<s

;|;—

rats

S\|P|p

rPirl/plp|/rlr|r|

O;mipr|rloln]

m|~«<

o|w

ame

oimsim

PARTS

GUIDE

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