Panasonic KX-TCD735AXM User manual

ORDERNO. KM40209968C3
Telephone Equipment
KX-TCD735AXM
Digital Cordless Answering System
MetallicGreyVersion
(for Eastern Asia)
SPECIFICATIONS
2002 Kyushu Matsushita ElectricCo., Ltd. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
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1. LOCATION OF CONTROLS
1.1. Base Unit
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1.2. Handset
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2. DISPLAYS
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3. DISASSEMBLY INSTRUCUTIONS
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ShowninFig. To Remove Remove
1LowerCabinet Screws (2.6 × 14).................(A) × 4
2 MainP.C.B of base Remove solderand tapes
3 MainP.C.B of base FFC
4RearCabinet of handset Screws (2 × 8)......................(B) × 2
5 MainP.C.B of handset Screws (2 × 6)......................(C) × 2
3.1. Assemblythe LCD to P.C. Board (Handset)
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4. SETTINGS
4.1. Connections
Plug inthe AC Adaptorand the telephone line cordtothe bottomof the unit. Thenconnect the
cords as shown.
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-USE ONLY WITHPanasonicAC ADAPTORPQLV1CEZ.
-The AC Adaptor must remainconnected at all times. (Itisnormal
for the adaptor to feel warm during use.)
-Thistelephone has asingleterminal which must be connected to
an analog telephone line with aRJ11 connector.
-Ifyour unitisconnected to aPBXwhich does not support Caller ID
services, you cannot access those services.
-The telephone will not work during apower failure. We therefore
recommend you use astandard telephone and automaticchange-
over switch to connect thisDigital Cordless Phone to the line.
Your Panasonicsales shop can offer you more information about
connection possibilities.
4.2. Using the BeltClip
You canhang the handset on yourbelt orpocket using the belt clip.
4.3. Batteries
4.3.1. Installing the Batteries inthe Handset
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4.3.2. BatteryCharge
4.3.3. Recharge (Handset displayonly)
4.3.4. BatteryInformation
5. OPERATIONS
This section is intendedtoprovide a basic overviewforKX-TCD735AXM.
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Fora full explanation, refertothe Operating Instructions.
5.1. Turning the Power ON/OFF
5.2. Making aCall
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5.3. Answering aCall
5.4. Terminating aCall
5.5. Summaryof ProgrammableFunctions
5.5.1. Base Unit
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*1 If anykeyis not pressedover60 seconds, the displaywill returnto“Setting Base”.
*2 See Setting a 4-digit Base Unit PIN () formore details.
5.5.1.1. Setting a 4-digit Base Unit PIN
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5.5.2. Handset
You canprogramthe following function items using the handset nearthe base unit.
Make sure that the poweris ON, and the unit is inthe standbymode.
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*1 See Setting a 4-digit Handset PIN () formore details.
5.5.2.1. Setting a 4-digit Handset PIN
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5.6. Registration
5.6.1. Registering aHandset inthe Base Unit
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5.6.2. Cancelling aHandset Registration inthe Base Unit
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5.6.3. Cancelling aBase Unit
6. CIRCUIT OPERATION (BASE UNIT)
BLOCK DIAGRAM BASEBAND SECTION AND LINE INTERFACE (BASE UNIT)
Fig. 17
6.1. THEBASE-BAND SECTION
6.1.1. INTRODUCTION (SEE Fig. 17)
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The base-band section consists of a base-band integratedcircuit (BBIC), a FlashPROM and an
EEPROM.
6.1.2. THE BASE-BAND INTEGRATED CIRCUIT(BBIC)
The CICB00001367 (PMB5737 : IC6) is a CMOS device designedtohandle all the audio, signal
and data processing neededina DECTbase unit. It contains a "burst mode controller" which
takes care of DECTspecific physical layerand radiosection control. It alsocontains anADPCM
codec filterusedforspeechencoding and decoding inthe DSP section, a general purpose
microcontroller, various otherADC's, DAC's, timers and powercontrol circuitry.
The BBIC interfaces toits external PROM (IC5) via a data/address/control bus. It connects tothe
EEPROM (IC9) via a serial interface, and a second serial interface is usedduring manufacture
and service toconnect toanexternal computer.
6.1.3. FLASH PROM (SEE Fig. 18)
The 2 Mbit (IC5) FlashPROM contains the operational firmware forthe microcontroller. It is
interfacedtothe data/address/control bus using address lines A0 toA17, data lines D0 toD7,
and chipselect (pin30), output enable (pin32), and write (pin7).
6.1.4. EEPROM (SEE Fig. 18)
The electricallyerasable PROM PQVIT2464WM6 (IC9) is usedtostore all the temporary
operating parameters forthe base (see EEPROM LAYOUT (BASE UNIT)). It uses a two-line serial
data interface withthe BBIC, withbi-directional data on pin5 (TP104), and clock on pin6 (TP3).
6.1.5. SERIALFLASH ROM (SEE Fig. 18)
The 4Mbit (IC8) Serial FlashROM contains the audiodata forTAM operation.
It is interfacedtothe clock/input/output using serial interface SCK, SI and SO.
6.1.6. CLOCK GENERATION (SEE Fig. 18)
single clock generatorinthe BBIC uses anexternal crystal X1 toderive all clock frequencies
usedinthe base. The crystal is tunedtothe exact frequencyof 10.368 MHz during manufacture.
The BBIC provides a reference clock signal SYRI (pin5, TP101) whichis usedtodrive the PLL
circuitryinthe RFmodule. The basic data rate forTXDA (pin12 and RXDA (pin20) is 1.152 Mbits
/s, whichis 10.368MHz dividedby9.
6.1.7. FACTORY SERIALPORT(SEE Fig. 18)
Inordertocommunicate withthe base band section during manufacture and servicing (using a
PC) a serial data link has beenprovided.
Serial data input/output is providedthrough the SDA terminal (J102). The data is clocked
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through using the SCLterminal (J103). A ground terminal is providedbyJ104.
The serial port terminals J100 toJ104 are connectedtobymeans of test probe pads on the
ground plane side of the pcb.
6.1.8. AUDIO PATH-RX AUDIO-LINE INPUT(SEE Fig. 18)
Audiofromthe line interface TXAF(TP97) enters the BBIC on pin134. The audiosignal passes
through the analogue part of the BBIC where it is amplifiedand convertedtoa digital audio
streamsignal. The burst mode controllerprocesses this streamperforming encryption and
scrambling, adding the various otherfields toproduce the GAP standardDECTframe,
assigning toa time slot and channel etc. toemerge on pin12 as TXDA.
6.1.9. AUDIO PATH - TX AUDIO - LINE OUTPUT(SEE Fig. 18)
Audiofromthe receiverRXDA enters the BBIC on pin20 as GAP standardDECTframes. It
passes through the decoding section burst mode controllerwhere it separates out the frame
information and performs de-encryption and de-scrambling as required. It thengoes tothe DSP
where it is turnedback intoanalogue audio. This is amplifiedbythe analogue front end and
emerges at pin126 - i.e. the RXAFsignal of the line interface.
6.1.10. TAM VOICE PROMPTAND DATA (SEE Fig. 18)
TAM voice prompt and data are storedat SERIALFLASH ROM (IC8).
Whenrecording, BBIC (IC6) write voice data toIC8 via V_SI signal.
Whenplaying, BBIC (IC6) readvoice data fromIC8 via V_SO signal.
Fig. 18
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6.2. THELINEINTERFACESECTION(SEE BLOCK DIAGRAM Fig. 17)
6.2.1. INTRODUCTION
This section consists of the telephone line interface, bell detector, charge-pulse detector, hook
switch, pulse dialing circuits, audiocircuits, DC mask & line impedance circuits, power
supplies, and batterychargercircuits.
6.2.2. TELEPHONE LINE INTERFACE (SEE Fig. 19)
The telephone line is connectedtoa bridge rectifierD8. Surge suppressorSA3 protects against
excessive line voltages. Test points are TP40 (A), TP26 (B). Bridge rectifierD8 provides forlines
of eitherpolarity. The output of D8 is “Line +” (TP50) and “Line -” whichis ground.
6.2.3. BELL DETECTOR (SEE Fig. 19)
The AC ringing signal is detectedbyphoptocouplerIC2, using its internal diode inconjunction
withD4. DC fromthe line is blockedbyC2. The othercomponents D2, D3, and R3 reduce
current and increase the circuit impedance inline withnational requirements. Whenringing is
detectedIC2 will turnon, and the RING line will be draggedtoa lowvoltage.
6.2.4. CLIP CIRCUITS (SEE Fig. 19)
The CLIP signal is detectedbyIC3 and sent tothe BBIC through the /TXAFline as a square
waveform. The CLIP_STATE signal fromthe BBIC is usedtoprovide a CLIP impedance through
a combination of components selectedfromR85, R86, C93, C37 and R1. The combination
depends upon the CLIP requirements of the specific country- oftenthere is no requirements for
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