Panasonic KX-TCD420BXM User manual
ORDERNO. KM40308169C8
TelephoneEquipment
KX-TCD420BXM / KX-A142EXM / KX-TCD420BXS / KX-
A142EXS
Digital Cordless Answering System
MetalicGrayVersion
SilverVersion
(forAsia, EasternEuropeand Otherareas)
SPECIFICATIONS
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1/2/2015
Digitized in Heiloo, Holland
2003 PanasonicCommunicationsCo., Ltd. All rights reserved.
Unauthorizedcopying and distribution isaviolation oflaw.
1. ABOUTLEADFREE SOLDER (PbF:Pbfree)
Note:
Intheinformation below, Pb, thesymbol for leadintheperiodictableofelements, will referto
standard solderor solderthatcontainslead.
Wewill use PbF solderwhendiscussing theleadfree solderusedinour manufacturing process
whichismadefrom Tin(Sn), Silver(Ag), and Copper(Cu).
Thismodel, and otherslike it, manufacturedusing leadfree solderwill have PbF stampedon the
PCB. For service and repairworkwesuggestusing thesametypeofsolderalthough, withsome
precautions, standard Pbsoldercanalsobeused.
Caution
-PbF solderhas amelting pointthat is50°F~70°F(30°C~40°C)
higherthanPbsolder. Please use asoldering iron with
temperaturecontrol and adjust itto700°F±20°F(370°C±10°C). In
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case ofusing high temperaturesoldering iron, please becareful
nottoheat too long.
-PbF solderwill tend tosplashifitisheatedmuchhigherthanits
melting point, approximately1100°F(600°C).
-Ifyou must use Pbsolderon aPCB manufacturedusing PbF
solder, removeas muchoftheoriginal PbF solderas possibleand
besurethat anyremaining ismeltedpriortoapplying thePb
solder.
-Whenapplying PbF soldertodoublelayeredboards, please check
thecomponentsideforexcess whichmayflow ontotheopposite
side(See thefigurebelow).
1.1. SuggestedPbF Solder
Thereareseveral types ofPbF solderavailablecommercially. Whilethisproductismanufactured
using Tin, Silver, and Copper
(Sn+Ag+Cu), you canalsouse Tinand Copper(Sn+Cu)or Tin, Zinc, and Bismuth(Sn+Zn+Bi).
Please check themanufac
turer’sspecificinstructionsfor themelting pointsoftheirproductsand anyprecautionsfor
using theirproductwithother
materials.
Thefollowing leadfree (PbF)solderwiresizes arerecommendedfor service ofthisproduct:
0.3mm, 0.6mm and 1.0mm.
1.2. How torecognizethat PbFree solderisused
1.2.1. Base UnitPCB
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(ComponentView)
(FlowSolderSideView)
Note:
Thelocation ofthe“PbF“markissubjecttochangewithoutnotice.
1.2.2. Handset PCB
(ComponentView)
(FlowSolderSideView)
Note:
Thelocation ofthe“PbF“markissubjecttochangewithoutnotice.
1.2.3. ChargerUnitPCB
Note:
Thelocation ofthe“PbF“markissubjecttochangewithoutnotice.
2. FORSERVICE TECHNICIANS
ICsand LSIsarevulnerabletostaticelectricity.
Whenrepairing, thefollowing precautionswill helppreventrecurring malfunctions.
1. Covertheplasticparts boxes withaluminumfoil.
2. Ground thesoldering irons.
3. Use aconductivemat on theworktable.
4. DonottouchICorLSI pinswithbarefingers.
3. CAUTION
Dangerofexplosion ifbatteryisincorrectlyreplaced. Replace onlywiththesameor equivalent
typerecommendencedbythemanufacturer.
Dispose ofusedbatteries according tothemanufacture’sInstructions.
4. BATTERY
4.1. BatteryInstallation
Please ensurethebatteries areinsertedas shown. partshouldbeinsertedfirst.
Close thecoveras indicatedbythearrow.
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-Whenyou replace thebatteries, partshouldberemovedfirst.
4.2. BatteryCharge
Atthetimeofshipment, thebatteries arenotcharged. Tocharge, place thehandseton thebase
unit.
Please chargethebatteries for about7hoursbeforeinitial use. During charging, thebatteryicon
isas shownbelow.
Thehandsetwhichpowerisoff will beturnedon automaticallywhenitisplacedon thebase unit.
Innormal use, thehandsetand thebase unitshouldbepoweredon atall times.
Notefor Service:
Thebatterystrengthmay notbeindicatedcorrectlyifthebatteryisdisconnectedand connected
again, evenafteritisfullycharged.
Inthatcase, byrecharging thebatteryas mentionedabove, you will getacorrectindication of
thebatterystrength.
4.3. BatteryLife
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-Batterylife isdependenton use and conditionsbutingeneral when
using fullychargedNi-MHbatteries (700 mAh):
Talktime:10hrsapprox.
Standbytime:120hrsapprox.
-Whenusing Ni-Cdbatteries (250 mAh):
Talktime:4hrsapprox.
Standbytime:40hrsapprox.
(Times indicatedareforpeak performance)
-Thebatteries reachpeak performance afterseveral full charge/
dischargecycles.
-Thebatteries cannotbeoverchargedunless theyarerepeatedly
removedand replaced.
-Ifbatterylife isshortenedthenplease check that batteryand charge
terminalsareclean.
-Formaximumbatterylife, itisrecommendedthat thehandset isnot
rechargeduntil batteryicon flashes .
4.4. Replacing theBatteries
Ifthe icon flashes afterafewtelephonecallsevenwhenthehandsetbatteries have
beenfullycharged, 2batteries mustbereplaced.
Chargenewbatteries for approximately7hoursbeforeinitial use.
(Thetelephonelinecord mustnotbeconnectedtothetelephonesocketatthistime).
Whenreplacing thebatteries, ensurethatthecorrectbatterytypeisselected.
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-To exittheoperation, press anytime.
-Donotuse non-rechargeablebatteries. Ifnon-rechargeable
batteries arefittedand startcharging, itmaycause theleakageof
thebatteryelectrolyte.
Please use onlyPanasonicP03P(Ni-MH) or P03H(Ni-Cd)batteries.
Notefor Service:
WhenNi-Cdbatteries arefittedwiththe setting
in , icon mightdisappearand stop charging evenifthe
handsetison thecradlefor avoiding overcharge.
5. LOCATIONOFCONTROLS
5.1. Base Unit
5.2. Handset
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6. SETTINGS
6.1. Connection
6.1.1. Base Unit
Plug intheACadaptor and thetelephonelinecord inorder1, 2, 3, 4.
TheACadaptor mustremainconnectedatall times (Itisnormal for theadaptor tofeel warm
during use).
-Neverinstall telephonewiring during alightning storm.
-Theunitwill notworkduring apowerfailure. werecommend you
connect astandardtelephoneon thesameline
forpowerprotection.
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6.1.2. ChargerUnit
TheACadaptor mustremainconnectedatall times (Itisnormal for theadaptor tofeel warm
during use).
6.2. SymbolsUsedinThisService Manual
6.3. PINCode
6.3.1. Base Unit
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-To exittheoperation, press anytime.
For Service Hint:
*:Ifthecurrent4-digitPINisforgotten, press and
you will beabletoenternewPIN.
Asfor thecase thatBase Unitand Handsetarenotlinkedwith, referto Reset Base Unit PIN to
Default (0000) -When There is NO Handset Registered-()
6.3.2. Handset
-To exittheoperation, press anytime.
For Service Hint:
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This manual suits for next models
3
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