Panasonic KX-TC1040LAB User manual

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Service Manual
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ORDERNO.KM40111725C3
TelephoneEquipment
lKX-TC1040LAB/KX-TC1040LAW
Cordless AnsweringSystem
BlackVersion
White Version
(forLatinAmerica)
©2001 Kyusyu MatsushitaElectronicsCO.,Ltd. All rightsreserved. Unauthorized copying and distribution isaviolation of law.
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5ADJUSTMENTS(BASEUNIT)
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Ifyourunithavebelowsymptoms,adjusteachitemusingremedy columnfromthetable.
Howtosetthetestmode.
CH25 TestMode
*Atthestep3,thetransmission frequencymaynotbethenormalvalue(about1/5times).Therefore,
ifthevalueisnotnormalinTXVCOAdjustment, TXFrequency Confirmation and LineInput
Modulation Adjustment,performthisprocedurefromthestep1again.
Whilepressing"S2",supplyDCvoltagetobaseunitby S3.Baseunit issettotestmodethenpress
"paging"keytwice.
SymptomRemedy
Thebaseunitdosenotrespondtoacall fromhandset.Makeadjustmentsinitem(A)
Thebaseunitdosenottransmit orthetransmit frequencyisoff.Makeadjustmentsinitem(B)
Thetransmitfrequencyisoff.Makecomfirmationinitem(C)
Thetransmitpoweroutputislow, andtheoperating distance betweenbaseunitandhandsetislessthannormal.Makeadjustmentsinitem(D)
Thereception sensitivityof baseunitislowwithnoise.Makeadjustmentsinitem(E)
Thetransmitlevel islargeor small.Makeadjustmentsinitem(F)
Thereception level islargeor small.Makeadjustmentsinitem(G)
Theunitdoesnotlink.Makecomfirmationinitem(H)
CHTXFrequencyRXFrequency
CH2546.970MHz49.970MHz

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Theconnection ofadjustmentequipmentsareasshownin CIRCUITBOARD(BASEUNIT) ()
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6ADJUSTMENTS (HANDSET)
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Ifyourunithavebelowsymptoms,adjusteachitemusingremedy columnfromthetable.
Unitcondltion:
1.Removetheantennalead wirefromP.C.Boardof
handset.
2.PowerSupply:DC2.6V
3.Volume:HIGH(WhenP.C.Boradofhandsetisintestmode,volumecondition ismedium.
Press"LOUD"keyonce.)
4.SpeakerLoad:150
Howtosetthetestmode.
CH25 TestMode
SymptomRemedy
ThemovementofBattery LowIndicator iswrong.Makeconfirmation initem(A)
Thebaseunitdoesnotrespondtoacall fromhandset.Makeadjustmentinitem(B)
Thebaseunitdoesnottransmit orthetransmit frequencyisoff.Makeadjustmentinitem(C)
Thetransmitfrequencyisoff.Makeconfirmation initem(D)
Thetransmitpoweroutputislow,andtheoperating distancebetweenbaseunit andhandsetislessthannormal.Makeconfirmation initem(E)
Thereception sensitivityof baseunitislowwithnoise.Makeadjustmentinitem(F)
Doesnotlinkbetweenbaseunitandhandset.Makeconfirmation initem(G)
Thereception level ishighor low.Makeadjustmentinitem(H)
Thetransmitlevel ishighor low.Makeadjustmentinitem(I)
CHTXFrequencyRXFrequency
CH25 49.970MHz46.970MHz

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Theconnectionsofadjustmentequipmentsareasshown CIRCUITBOARD(HANDSET) ()
6.1TestModeFlowChartforMaintenanceoftheBASEUNIT
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6.1TestModeFlowChartforMaintenanceof
theBASEUNIT
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17 TROUBLESHOOTINGGUIDE
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DisplaySymptomRemedy
E1Theinitialization wastried,butit couldnotbedone.1.ConfirmFlashMemoryisequipped.
2.Confirmtheconnection ofFlashMemory.
3.ConfirmthepowersupplyofFlashMemory.
Whenno errorisfoundinabove-mentioneditems,FlashMemoryhasadefect.
Replace FlashMemory.
E2ThedefectofFlashMemorywasdetected.WhenFlashMemory hasthefataldetect,replace FlashMemory.
Thiserror hardlyoccurs.
E3,E9 Whentheadjustmentdata waschecked,anerror wasdetected.
(Theadjustmentdata maynotbewritten.)
1.Confirmtheadjustmentdata iswritten.
2.ConfirmFlashMemoryisequipped.
3.Confirmtheconnection ofFlashMemory.
4.ConfirmthepowersupplyofFlashMemory.
Whenno errorisfoundinabove-mentioneditems,FlashMemoryhasadefect.
Replace FlashMemory.
E4ThedefectofDSPwasdetected.
(ThechipinDSP mayhaveadefect.)
1.Confirmtheconnection ofDSP.
2.Confirmtheoscillation frequencyofDSP.
Whenno errorisfoundinabove-mentioneditems,DSP hasadefect.Replace DSP.
E5,E6 ThedefectofDSPwasdetected.WhenDSPhasthefatal defect,replace DSP.
Thiserror hardlyoccurs.
E7Thedefectofsynthesizedvoice wasdetected.
(Thesynthesizedvoice maynotbewritten.)
1.Confirmthesynthesizedvoice iswritten.
2.ConfirmFlashMemoryisequipped.
3.Confirmtheconnection ofFlashMemory.
4.ConfirmthepowersupplyofFlashMemory.
Whenno errorisfoundinabove-mentioneditems,FlashMemoryhasadefect.
Replace FlashMemory.

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18 TROUBLESHOOTINGGUIDE(BASE
UNIT)
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BaseUnit Condition:
1.Setthedialingmodeselectorto"Tone".
Checkthebaseunit asshownby followingbelowflowchart.
Whenchecking thebaseunit only.

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18.1TroubleshootingStep1:
18.2TroubleshootingStep2:
18.3TroubleshootingStep3:
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18.1TroubleshootingStep1:
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Thebaseunit doesnotflashInUse/Chargeindicator.
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