Panasonic KX-TS105LXW User manual

ORDERNO. KM40109857C3
TelephoneEquipment
KX-TS105LXW
IntegratedTelephoneSystem
White Version
(forLatinAmerica)
SPECIFICATIONS
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1. LOCATIONOFCONTROLS
2. CONNECTION
2.1. Connecting theHandset/TelephoneLineCord
Afterconnection, lift thehandsettocheck for adial tone.
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-Use onlyaPanasonicHandset fortheKX-TS105LXW.
2.2. Connecting aCommunication Device
Ifyou connectacommunication device (computer, modem, fax, answering machine, etc.)tothe
telephoneline, you canconnectitthrough thisunitusing theDATAjack.
Afterconnecting thehandsetand telephonelinecord, connectthecommunication device
telephonelinecord totheDATAjack.
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-Make surethecommunication device isnotinuse beforeusing this
unit(making calls, storing phonenumbersinmemoryetc.)orthe
communication device maynotoperate properly.
3. SETTINGS
3.1. Selecting theDialing Mode
You canselectthedialing modebyprogramming. Ifyou have touchtoneservice, setto"Tone". If
rotaryor pulse service isused, setto"Pulse". Your phonecomes from thefactorysetto"Tone".
Make surethatacall isnotputon hold.
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3.2. Selecting theRingerVolume
You canselecttheringervolumetoHIGH, LOWor OFF. Your phonecomes from thefactoryset
toHIGH.
4. SPECIALFEATURES
4.1. FLASHButton
Pressing allowsyou touse special features ofyour hostPBX suchas transferring an
extension call or accessing special telephoneservices (optional)suchas call waiting.
4.2. Selecting theFlashTime
Theflashtimedependson your telephoneexchangeor hostPBX. You canselectthefollowing
flashtimes:"80, 90, 100, 110, 200, 250, 300, 400, 600, 700 ms(milliseconds)". Your phonecomes
from thefactorysetto"600 ms".
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Make surethatacall isnotputon hold.
-Ifyou areconnectedviaaPBX, alongerflashtimemaybe
necessarytouse PBXfunctions(transferring acall, etc.). Consult
yourPBXinstallerforthecorrect setting.
4.3. Setting thePinCode
A4-digitPinCode(Personal Identification Number)preventsunauthorizedpersonsfrom using
your unit. ThePinCodeisrequiredfor thedial lock and call restriction tobesetor canceled. The
factorypresetPincodeis"1111".
Make surethatacall isnotputon hold.
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Please writedownyour Pincode. Ifyou forgetyour Pincode, consultyour nearestPanasonic
service center.
4.4. Dial Lock
You canpreventothersfrom making acall toanynumberexcepttheonepre-programmedinthe
memoryoftheEMERGENCYbutton. Once you lockedthedialing buttons, evenemergency
numberscannotbedialed. Onlyincoming callsareaccepteduntil thedial lock iscanceled.
Beforeusing thisfeature, werecommend storing anemergency numberinthememoryofthe
EMERGENCYbutton. Evenifthedialing buttonsarelocked, thenumberstoredinthebutton can
bedialed.
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-Ifyou choose nottoprogramemergencynumbers, butplantouse
thedial lock, anynumberprogrammedintotheEMERGENCY
button canbeaccessed.
4.4.1. To Set theDial Lock
You canuse thefollowing features whilethedialing buttonsarelocked.
-Dialing anumberyou programmedintothememoryofthe
EMERGENCYbutton.
-Adjusting thehandset and speakerphonevolumes.
-Muting theconversation.
-Answering thesecond call bypressing .
4.4.2. To Cancel theDial Lock
Followsteps1through 3above again.
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4.5. Call Restriction
You canpreventtheunitfrom dialing phonenumbersbeginning withspecifieddigit(s)(1digitor
2digits). Phonenumberswiththerestrictedleading digitscannotbedialedout.
4.5.1. To Set theCall Restriction
Make surethatacall isnotputon hold.
-IfyourunitisconnectedtoaPBX, thisfunction maynotoperate.
Contact yourPBXsupplierformoreinformation.
4.6. To cancel thecall restriction
Followsteps1through 5. Instep6, press tocancel call restriction and press .
-Along beepwill sound and theunitwill returntothestandbymode.
4.7. How toRelease theEstablishmentofDial Lock
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Afterthisprocedure, you will beabletoestablishanewpassword.
Howtorelease theestablishmentofdial lock.
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5. DISASSEMBLYINSTRUCTIONS
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Ref. No. Procedure ShowninFig—. Toremove —. Remove —.
1 1 1 LowerCabinet Screws(2.6×12). . . . . . . . . . . . . (
A)
21~2 2 PrintedCircuitBoard Remove theP.C.Board
6. HOWTO REPLACE FLATPACKAGEIC
6.1. Preparation
-SOLDER
SparkleSolder115A-1, 115B-1 orAlmitSolderKR-19, KR-19RMA
-Soldering iron
Recommendedpowerconsumption will bebetween30 Wto40 W.
TemperatureofCopperRod 662 ±50°F(350 ±10°C)
(Anexpertmayhandlebetween60 ~80 Wiron, butbeginnermight
damagefoil byoverheating.)
-Flux
HI115 Specificgravity0.863
(Original fluxwill bereplaceddaily.)
6.2. Procedure
1. TemporaryfixFLATPACKAGEICbysoldering on twomarked2
pins.
*Most importantmatterisaccurate setting ofICtothe
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corresponding soldering foil.
2. Applyfluxforall pinsofFLATPACKAGEIC.
3. Solderemploying specifiedsoldertodirection ofarrow, as sliding
thesoldering iron.
6.3. Modification ProcedureofBridge
1. Re-solderslightlyon bridgedportion.
2. Removeremainedsolderalong pinsemploying soldering iron as
showninbelow figure.
7. CPU DATA
7.1. IC801
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7.2. SpeakerphoneICData
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Pin
NO. Name Description
1RR Aresistor toground provides areference currentfor thetransmitand receive
attenuators.
2RTX Aresistor toground determines thenominal gainofthetransmitattenuator. The
transmit
channel gainisinverselyproportional totheRTX resistance.
3TXI Inputtothetransmitattenuator. Inputresistance isnominally5.0kohms.
4TXO Outputtothetransmitattenuator. TheTXOoutputsignal drives theinputofthe
transmit
detector, as well as theexternal circuitwhichdrives thetelephoneline.
5TLI Inputofthetransmitlevel detector. Anexternal resistor ac coupledtotheTLIpinsets
the
detection level. Decreasing thisresistor increases thesensitivitytotransmitchannel
signals.
6TLO Outputofthetransmitlevel detector. Anexternal resistor and capacitor setthetime
the
comparator will holdthesystem inthetransmitmodeafterspeechceases.
7RLI Inputofthereceive level detector. Anexternal resistor ac coupledtotheRLIpinsets
the
detection level. Decreasing thisresistor increases thesensitivitytoreceive channel
signals.
8RLO Outputofthereceive level detector. Anexternal resistor and capacitor setthetimethe
comparator will holdthesystem inthereceive modeafterthereceive signal ceases.
9MCI Microphoneamplifierinput. Inputimpedance isnominally10 kohmsand thedcbias
voltage
approximatelyequal toVB.
10 MCO Microphoneamplifieroutput. Themicampgainisinternallysetat34 dB(50 V/V).
11 CP1 Aparallel resistor and capacitor connectedbetweenthispinand Vcc holdsavoltage
corresponding tothebackground noise level. Thetransmitdetector compares theCP1
voltage
withthespeechsignal from CP2.
12 CP2 Acapacitor atthispinpeak detectsthespeechsignalsfor comparison withthe
background
noise level heldatCP1.
13 XDI Inputtothetransmitdetector system. Themicrophoneamplifieroutputisac coupled
to
pinthrough anexternal resistor.
14 SKG High currentground pinfor thespeakerampoutputstage. TheSKGvoltageshouldbe
within
mV oftheground voltageatpin22.
15 SKO Speakeramplifieroutput. TheSKOpinwill source and sinkup to100 mAwhenac
coupled
speaker. Thespeakerampgainisinternallysetat34 dB(50 V/V).
16 V+ Inputdcsupplyvoltage. V+canbepoweredfrom Tipand Ring ifanac decoupling
inductor
usedtopreventloading ac linesignals. TherequiredV+voltageis6.0to11 V (7.5V
nominal)
7.0mA.
17 AGC Acapacitor from thispintoVBstabilizes thespeakerampgaincontrol loop, and
additionally
controlstheattack and decay timeofthiscircuit. Thegaincontrol loop limitsthe
speaker
inputtopreventclipping atSKO. Theinternal resistance attheAGCpinisnominally
110
18 CS Digital chipselectinput. WhenataLogic"0" (<0.7V)theVcc regulator isenabled.
When
Logic"1" (>1.6V), thechipisinthestandbymodedrawing 0.5mA. AnopenCS pinisa
Logic
Inputimpedance isnominally140 kohms. Theinputvoltageshouldnotexceed11 V.
19 SKI Inputtothespeakeramplifier. Inputimpedance isnominally20 kohms.
20 Vcc A5.4V regulatedoutputwhichpowersall circuitexpectthespeakeramplifieroutput
stage.
canbeusedtopowerexternal circuitrysuchas amicroprocessor (3.0mAmax). Afilter
isrequired. TheMC34018 canbepoweredbyaseparateregulatedsupplyby
connecting
Vcc toavoltagebetween4.5V and 6.5V whilemaintaining CS ataLogic"1".
21 VB Anoutputvoltageequal toapproximatelyVcc/2whichserves as ananalogueground
for
speakerphonesystem. Upto1.5mAofexternal loadcurrentmay besourcedfrom VB.
Output
impedance is250 ohms. Afiltercapacitor isrequired.
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Pin
NO. Name Description
22 Gnd Ground pinfor theIC(exceptthespeakeramplifier).
23 XDC Transmitdetector output. Aresistor and capacitor atthispinholdthesystem inthe
transmit
modeduring pauses betweenwordsor phrases. WhentheXDC pinvoltagedecays to
ground,
theattenuatorsswitchfrom thetransmitmodetotheidlemode. Theinternal resistor
at
nominally2.6kohms.
24 VLC Volumecontrol input. Connecting thispintothesliderofavariableresistor provides
receive
modevolumecontrol. TheVLCpinvoltageshouldbeless thanor equal toVB.
25 ACF Attenuator control filter. Acapacitor connectedtothispinreduces noise transientsas
the
attenuator control switches levelsofattenuation.
26 RXO Outputofthereceive attenuator. Normallythispinisac coupledtotheinputofthe
speaker
amplifier.
27 RXI Inputofthereceive attenuator. Inputresistance isnominally5.0kohms.
28 RRX Aresistor toground determines thenominal gainofthereceive attenuator. The
receive
gainisdirectlyproportional totheRRX resistance.
8. TERMINALGUIDE OFIC’STRANSISTORS AND
DIODES
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9. BLOCK DIAGRAM
10. BLOCK DIAGRAM(IC1)
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10.1. Communication ICs
11. CIRCUITOPERATION
11.1. Bell DetectorCircuit
Whenthebell signal isinputbetweenT/R, thesignal areoutputtedatthespeakerviathe
following path:Tel lineR1/C1D1Pin1ofIC1Pin8ofIC1C6T1C625
Speaker
11.2. LineInterface
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Intalkstatus, L1RLYoutputfrom pin25 ofIC801 changes tolowlevel, causing Q103, Q101 to
turn on and resulting inalineloop.Theloop currentflowsfrom D101(+)Q101 Q108
R124 D106 inthatorder, Apulse signal thatrepeatedswitches betweenhigh and lowlogicis
outputfrom pin26 oftheCPU.Thisswitches thelineloop on and off, generating thedial pulse
signal.
11.3. MODULEBLOCK DIAGRAM
11.3.1. SpeakerphoneCircuit
11.3.1.1. Function
Thecircuitcontrolstheautomaticswitching ofthetransmittedand receivedsignals, toand from
thetelephoneline, whentheunitisusedinthehands-free mode.
11.3.1.2. CircuitOperation
Thespeakerphonecanonlyprovideaone-way communication path.
Inotherwords, itcaneithertransmitanoutgoing signal or receive anincoming signal atagiven
time, butcannotdo bothsimultaneously. Therefore, aswitching circuitisnecessarytocontrol
theflowoftheoutgoing and incoming signals.
Thisswitching circuitiscontainedinIC601 and consistsofaVoice Detector, TX Attenuator, RX
Attenuator, Comparator and Attenuator Control. Thecircuitanalyzes whethertheTX(transmit) or
theRX(receive)signal islouder, and thenitprocessedthesignalssuchthattheloudersignal is
givenprecedence.
TheVoice Detector provides aDC inputtotheAttenuator Control corresponding totheTX signal.
TheComparator receives aTX and aRX signal, and supplies aDC inputtotheAttenuator Control
corresponding totheRX signal.
TheAttenuator Control provides acontrol signal totheTX and theRX attenuator toswitchthe
appropriatesignalson and off. TheAttenuator Control alsodetectsthelevel ofthevolume
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