Fukuda Denshi FX-2111 Manuale utente

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SERVICEMANUAL

Electrocardiograph

FX-2111

4R2043

FUKUDADEIMSHICO.,LTD.

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Copyright©1

99

7byFukudaDenshiCo.,Ltd.

Nopartofthisdocum entmaybecopied

ortransmi

tt

edinanyformwithout

thepriorw

r i

ttenpermissionofFukuda

DenshiCo.,Ltd.

Manufactured inJapan

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Foreword

AWelistupherethewarningmarksusedinFukudaoperationand

servicemanu

a l

s.

Whenyousen/icetheFX-2111,readthisservicemanualthorough-

lyandpayattentionespeciallytoinstructionsbearingthefol-

lowingmarks:

WarningMarks

Warningmarksusedinoperationandservicemanualsandlabelled

ontheinstrumenthavethefollowingmeanings:

Readthemcarefullytounderstandthemeaningsandmakesureof

thesig nificanceofeachparticular.

A

A

A

Thismarkisusedtoindicatethedirecthazards

Dangerwhichmayleadtothedeathorseriousinjuryofthe

person,maywhollydam agetheinstrument,ormay

c a

usefirehazard,unlesstheinstructionswritten

therearefollo wed.

Thismarkisusedtoin

dic

atetheindirectpotential

Warninghazardswhichmayleadtothedeathorseriousinjury

oftheperson,maywhollydam agetheinstrument

ormaycausefirehazard,un lesstheinstructions

w r

itte ntherearefollowed.

Thismarkisusedtoindicatethepossiblehazards

Cau tionwhichmayleadtoamildormediuminjuryofthe

person,maypartiallydamagetheinstrumentormay

erasedatafromtheco mputer.

NOTE"NOTE"isnotwarninginstructionsbutoffersinfor-

mationtoprev entthepersonfromdoingerroneous

sen/icing.

Ot

he

rMarks

0

A

Noticetoindicategeneralunspecificprohibited

matters.

Noticetoindicategeneralunspecificcaution,warn-

ingorhazard.

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T h

isservice

m a n

ualdes cribestec

h n

icalinfo rmatio nonFX-2111to

aidtheserviceengineerintroubleshooting.

Theman ualisintendedtobeusedbyserviceengineersofFukuda

representativesandauthorizedtechnicalstaffconcernedwithmedicalelec-

tronicequipment.Descriptionincludesrepairingandassemblingmethods

ofeachcomponentunitofFX-2111.Forpartslistsanddiagrams,referto

thePartIIoftheservicema

n u

al.

Theservicemanualconsistsofthefollowingninechapters:

1

.GeneralDescription

TheoutlineofFX-2111,specifications,controlsandindicatorsare

described.

2

.CircuitDescription

Circuitconfigurationandfunctionsareexplained.

3

.Troubleshooting

Troublesvs .c

a u

sesand

c o

unter

m e a

suresaredescri

b e

d.

4

.

Maintenance

Procedurestoreplacethepowerfuse,ROMandbatteryandtoperform

self -testaredescri

b e

d.

5

.PeriodicalInspection

Inspectionprocedurestopre venttroub lesandensuresafeandcom-

pleteoperationoftheinstrumentaredescribed.

6

.CircuitDiagrams

7

.AssemblyDiagrams

8

.

ElectricalPartsLi

s t

s

9

.

StructuralDiagrams

ACaution

0.NeverremodelFukudamedicalelectronicequipment.

.Theservicem

a n

u a

lisintendedfortheservic e

engineersofFukudarepresentativesandthetechni-

calstaffconcernedwithmedicalelectronice

qui

p-

ment.Servicing,reassembling,andadjustmentshall

beperformedbyauthorizedserviceengineers.

.Prepareproperfacilitiesandtoolswhenservicing.

.Besuretofollowtheinstructionsofopera tionmanual

whenoperatingtheinstrument.Foroperatingprecau-

tions,refertotheoperationmanual.

ii

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AServicingPrecautions

ACautionslistedbelowaretheinstructionsofprohibit,danger,warn-

ing,andcautiondescribedinthisserviceman ual.Whentakingthe

procedurebearingthefollowingmark,readthedescriptionthoroughly,

thenstartthetask.

ACaution(page3-2)

Whencheckingthepowersupplyandrelatedcircuitsfortroubleshoot-

ing,takesuff icientcaretoavoidashortcircuit.

ACaution(pag e3-3)

Whencheckingpowerfuses,besuretoturnthepoweroffanddiscon-

nectthepowerplugfromthewalloutletbeforehand.

ACaution



(

pag

e3-8)

Theinsertingpartofkeyconnectorismadeofcarbon.Avoidfrequent

repeateddisco nnectionandconnection.

ACaution(page4-1)

Whenreplacingpowerfuses,besuretoturnthepoweroffanddiscon-

nectthepowerplugfromthewalloutletbeforehand.

ACaution(

pa g

e4-1)

WhenreplacingtheROM,besuretoturnthepoweroff.Al so,takecare

toinstalltheROMincorrectposition.

ACaution(page4-2)

Whenreplacingthebattery,besuretoturnthepoweroffanddiscon-

nectthepowerplugfromthewalloutletbeforehand.

ii i

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ACaution(page4-6)

Disassembling/ReassemblingPrecautions

Besuretodisco nnectthepowercordandmakesuretheinstrument

isturnedoffbeforedisassemblingorreassembling.

.DonotremovethebatterybeforedisconnectanyPCboard.

Takecarethatrepeateddisconnectionofthekeypanelandsensor

boardmayresultinpoorcontact.

Usepropertoolstoloo senscrews.

.Whenreassembling,makesurethatallscrewsaresecurelytight-

enedandallcon necto rsarecompletelyinserted.

PCBoard HandlingPr ecautions

.PCboa rdsareequippedwithhighlysensitivecomponentstostatic

electricity.

.PCboardsarehighlysensitiveelectronicdevices.

PutremovedPC

boardsinaproperprotectivebagortakeappropriatemeasu resto

protectthem.

Handle PCboardscarefully.Ashocktothemmaydamagetheco m-

ponents.

Neverinsertaconnectortothepowe redPCboa rdnorremovethe

poweredPCboard.

ACaution



(page5-2)

Ifyoufindavaluewhichexceedstheallowa blelevel,besuretolet

theuseravoidusingtheFX-211 1.IftheuseroperatestheFX-2111as

itis,he/shemayrece iveanhazardousaccide nt.

EquipmentClassification

TheFCP-2155isclassifiedintothefollowingequipment:

1

.

Protectionagainstelectricalshock

Cl

a s

sI

2

.Typeaga instelectricalshock

App liedpart:TypeCF

3

.Degreeofprotectionagainstharmfulwaterinvasion

Otherequipment

4

.Degreeofsafetyinusingunderair-inflammableanestheticgasesor

oxygen/nitrousoxide-anestheticgases

Equipmentusedunderanenvironmentco ntainingnoinflam

ma b

le

anestheticgase sornoinflamm ablecleaningagent.

5

.Run

ni

ngmod e

Continuousrunningmode

iv

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CHAPTER

1

GeneralInformation

1

.

OutlineoftheFX-211 11-1

2

.

Specifications1-1

2.1Electroc ardiographSection1-1

2

.

2General1-2

2

.

3Environ

m e

ntalConditions1-2

3

.

Controlsan dIndicators1-3

3

.1TopPanel1-4

3

.2SidePanels,LeftandRight1-4

3

.

3Bo

t t

omPanel1-4

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1

.

OutlineoftheFX-2111

TheFX-2111istheeasy-to-usesingle-channelelectrocardiograph

featuringasimpleoperationpanel.Thecompactyethigh-performance

designmakesitsuitablenotonlyforuseintheconsultationroombut

alsofor-carryinginavisittothehospitalwardorpatient

'shomeand

examinationatanemergencysite.

Ithasahigh-densitythermaldotprinterincorporatedtoprovideclear

ECGrecording.TheFX-211 1canoperateoneitherAClineorrechargea-

bleNi-MHbattery.

2

.Specifications

2

.1ElectrocardiographSection

Floatingfromtheground

Standardand

C a

brera12le ads

20MQ

m i

n.(referredto10Hz)

5x10"8max.

1

m V



w i

t

h i

n±5%

Commonmoderejection:10mmorlessperIEC 62DC06test

Inputcircuit:

Lea

d s

:

Inputimpedance:

Inputci rcuitcurrent:

Calibrationvoltage:

Polarizationvoltage:

Timeconstant:

Sensitivitie s:

Frequencyresponse:

ACfilter:

Musclefilter:

DCinput:

Di

sp l

ay:

Recordingsystem :

Paperspeeds:

Chartpapers-

Rollpaper:

Z-

fol

dpaper:

AID

c o

nversion:

Sam plingrate:

m e

thod

±30 0mVmin.

3

.

2secmin.

1/2,1and2cm/m V

0

.

05to150Hz(within-3dB)

50/6 0

H z

,-20dBor

lo w

er

35to45Hz,-3dB(-6dB/oct)

10mm/0.5V,unbal anced,100ki

m i

n.

Liquid-crystaldisplay,20 chars,x2lines

(character:5x7dots)

Therma ldotprinter,8do ts/mm

25and50mm

/s e

cwithin±3%

63mmor50mmwidex30mlong

63mmor50mmwidex20mlong,

75mm/f old

12bits

1ms

1-1

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2

.

2Ge

n e

ral

Safety:

Powerrequirements-

ACoperation:

DC

operation:

Dim ensions:

Weight:

IEC601-1ClassI

.TypeCF

.InternallypoweredequipmentType

CF(IEC601-1)

115VAC,50/60H2;19VAmax.

230VAC,50/60Hz;19VAmax.

9

.6V,7Wmax.(rechargeableNi-MH

battery)

Continuousoperation:app rox.120 min

at20oC(accordingtoIEC62DTesting

Method)

Chargingtime:within3hours

26 (W)x18.2(D)x6.3(H)cm

Approx.1.7kg(excludingbattery)

2

.3Env ir

o n

m

en

talConditions

Operating-

Temperature:10to40oC

Humidity:30to80%RH(nodewcondensation)

Atmos phericpressure:70to106kPa

Transportation&Storage-

Temperature:-10to40oC

Humidity:10to95%RH(nodewco ndensation)

Atmosp hericpressure:70 to106kPa

1-2

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3

.

ControlsandIndicators

TopPanel

@PaperMagazine

31-

k»

XLiquid-crystalDisplay

(DOpe rationPanel

LeftP

an e

lRightPanel

®PotentialEqualization

Terminal

o«

0

00

F3

D

©PowerConnector

©MainPowerSwitch

Q

@DCInp utTerminal

©LeadConne ctor

BottomPan el

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