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Panasonic KX-TCD705RUM Service Manual Download Page 77

18 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM (BASE UNIT)

18.1. Component View

3.8V 
TP91

TP57
RF module pin12
"SYRI" clock signal

1

2

3

4

5

6

7

8

9

10

11

12

35

34

33

32

31

30

29

RF pin-out

28

27

26

25

24

13
14
15
16
17
18
19
20
21
22
23

45

44

36

43
42
41

40
39
38

37

2.65V 
TP95

TP50
Off-hook
Voltage

IC9

IC5

IC8

IC1

IC7

IC3

IC2/IC4

KX-TCD705RUM / KX-TCD705RUS

79

Summary of Contents for KX-TCD705RUM

Page 1: ...tric Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law KX TCD705RUM KX TCD705RUS Digital Cordless Phone Metallic Grey Version Silver Version for Russia Telephone Equipment ORDER NO KM40110700C3 ...

Page 2: ...T THE CLOCK FREQUENCY 32 7 4 LOOPBACK TESTS 32 7 5 TELEPHONE LINE TESTS 33 7 6 CHARGE CURRENT TESTS 33 8 CHECK PROCEDURE HANDSET 34 8 1 EQUIPMENT REQUIRED 34 8 2 INITIAL POWER TESTS 34 8 3 SET CLOCK FREQUENCY 35 8 4 LOOPBACK TESTS 35 9 TROUBLESHOOTING GUIDE 36 9 1 HANDSET DOES NOT OPERATE 36 9 2 HANDSET LINK 37 9 3 HANDSET DOES NOT LINK 39 9 4 BATTERY DOES NOT CHARGE 40 9 5 NO VOICE RECEPTION 40 9...

Page 3: ...e IC1 72 17 SCHEMATIC DIAGRAM HANDSET 74 17 1 Handset 74 17 2 RF Section 76 18 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM BASE UNIT 79 18 1 Component View 79 18 2 Flow Solder Side View 80 19 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM HANDSET 81 19 1 Component View 81 19 2 Flow Solder Side View 82 3 KX TCD705RUM KX TCD705RUS ...

Page 4: ...1 LOCATION OF CONTROLS 1 1 Base Unit 1 2 Handset 4 KX TCD705RUM KX TCD705RUS ...

Page 5: ...1 3 Displays 1 3 1 Handset Display 1 3 2 Icons 1 3 3 Characters Symbols 1 3 4 Display Backlight 1 3 5 Lighted Handset Keypad 5 KX TCD705RUM KX TCD705RUS ...

Page 6: ...ig To Remove Remove 1 Lower Cabinet Screws 2 6 10 A 2 2 Main P C B of base Screw 2 6 10 B 1 3 Main P C B of base Charge wire solder 4 Rear Cabinet of handset Screws 2 8 C 2 5 Main P C B of handset Screws 2 6 D 2 6 KX TCD705RUM KX TCD705RUS ...

Page 7: ...2 1 Assembly the LCD to P C Board Handset 7 KX TCD705RUM KX TCD705RUS ...

Page 8: ...le terminal which must be connected to an analog line with a RJ11 connector If your unit is connected to a Telephone line or PBX which does not support Caller ID services you cannot access those services The telephone will not work during a power failure We therefore recommend you use a standard telephone and automatic change over switch to connect this Digital Cordless Phone to the line Your Pana...

Page 9: ...et using the belt clip 3 3 1 Installing the Batteries in the Handset 3 3 2 Battery Charge 3 3 3 Battery Strength You can check the present battery strength on the display 3 3 4 Recharge When flashes or the unit beeps every 15 seconds recharge the batteries 9 KX TCD705RUM KX TCD705RUS ...

Page 10: ...emperature Clean the handset charge contacts with a soft dry cloth Clean if the unit is subject to grease dust or high humidity Otherwise the batteries may not charge properly If the batteries are fully charged you do not have to place the handset on the base unit until flashes This will maximize the battery life The batteries cannot be overcharged 10 KX TCD705RUM KX TCD705RUS ...

Page 11: ...de a basic overview for KX TCD705RUM KX TCD705RUS For a full explanation refer to the Operating Instructions 4 1 Turning the Power On 4 2 Making a Call 4 3 Terminating a Call 4 4 Answering Call 4 5 Turning the Power Off 11 KX TCD705RUM KX TCD705RUS ...

Page 12: ...4 6 Handset Programming 4 6 1 Change the Initial Settings 12 KX TCD705RUM KX TCD705RUS ...

Page 13: ...13 KX TCD705RUM KX TCD705RUS ...

Page 14: ...14 KX TCD705RUM KX TCD705RUS ...

Page 15: ...4 7 1 Change the Initial Settings 4 7 2 Bell Selection 4 7 Base Programming 4 7 3 Select the Base Unit Ringer Volume 15 KX TCD705RUM KX TCD705RUS ...

Page 16: ...4 7 4 Select the Dialling Mode 4 7 5 Cancelling a Handset 4 7 6 Reset Base Unit 16 KX TCD705RUM KX TCD705RUS ...

Page 17: ...eded in a DECT base unit It contains a burst mode controller which takes care of DECT specific physical layer and radio section control It also contains an ADPCM codec filter used for speech encoding and decoding in the DSP section a general purpose microcontroller various other ADC s DAC s timers and power control circuitry The BBIC interfaces to its external PROM IC5 via a data address control b...

Page 18: ...ta is clocked through using the SCL terminal J103 A ground terminal is provided by J104 To invoke the external communication mode the MODE_SEL terminal J101 must be connected to the 2 65V terminal J100 The serial port terminals J100 to J104 are connected to by means of test probe pads on the ground plane side of the pcb 5 1 8 BUZZER CIRCUIT SEE Fig 18 A square wave signal from IC8 pin 68 is used t...

Page 19: ...Circuit Diagram KX TCD705RUM KX TCD705RUS 19 ...

Page 20: ...ound 5 2 3 BELL DETECTOR SEE Fig 19 The AC ringing signal is detected by phoptocoupler IC2 using its internal diode in conjunction with D4 DC from the line is blocked by C2 The other components D2 D3 and R3 reduce current and increase the circuit impedance in line with national requirements When ringing is detected IC2 will turn on and the RING line will be dragged to a low voltage 5 2 4 CLIP CIRC...

Page 21: ...ses To force the line impedance low during the pause intervals between dial pulses the PULSE DIAL signal turns on T11 5 2 7 AUDIO CIRCUITS SEE Fig 20 The line output signal from the BBIC RXAF is amplified by T13 The RXAF line is DC coupled to T13 thus making it work as a current limiter typically 8mA The emitter load of T13 is complex to achieved the correct frequency response since the line load ...

Page 22: ...charge terminal the 3 8V regulator IC7 and the Relay coil RL1 when fitted The 3 8V supply from IC7 is used for the RF module and is further reduced by T7 to 2 65B for the BBIC supply R17 18 and 28 provide short circuit over current protection at the handset charge terminal Circuit Diagram 22 KX TCD705RUM KX TCD705RUS ...

Page 23: ...Loop control The TXDA signal is used to control the modulation of this frequency by up to 400 kHz Received signals are demodulated filtered and sent to the BBIC via the RXDA line The RSSI Radio Signal Strength Indicator signal enables the implementation of diversity switching whereby two antennae can be mounted in different orientations and their signals compared The one with better reception can ...

Page 24: ...6 CIRCUIT OPERATION HANDSET BLOCK DIAGRAM BASEBAND SECTION HANDSET 24 KX TCD705RUM KX TCD705RUS ...

Page 25: ...er 6 1 3 FLASH ROM SEE Fig 24 The 1Mbit Flash PROM IC3 contains the operational firmware for the BBIC s general purpose microprocessor It is interfaced to the BBIC using address lines A0 to A17 data lines D0 to D7 and control lines CE Chip Enable WE Write Enable and OE Output Enable 6 1 4 EEPROM SEE Fig 24 The electrically erasable PROM IC2 is used to store all the temporary operating parameters f...

Page 26: ...where it is turned back into analogue audio This is amplified by the analogue front end and emerges at pin 40 and 41 The telephone speaker is driven directly from the BBIC output ports The hands free loudspeaker at SP and SP is used to generate the ring alarm When the handset is not in hands free mode the HF_AM1 amplifier is deactivated by the SP_CTR control signal at pin 93 from the BBIC The earp...

Page 27: ...Circuit Diagram 27 KX TCD705RUM KX TCD705RUS ...

Page 28: ...nned in five rows using scan pulses only active when keys are pressed from IC1 pins 15 to 19 The five key matrix columns are input to the BBIC on pins 51 52 53 57 and 58 6 1 10 LCD DISPLAY AND DISPLAY DRIVER SEE Fig 26 The LCD display receives data via a serial interface Serial data is sent to the display on pin 6 of the J5 socket with control lines at pin3 thru 6 Circuit Diagram 28 KX TCD705RUM K...

Page 29: ...s regulated by the BBIC s on board control signal LRB pin 37 This reference is fed to the base of T6 to keep the VREG line at 2 65V 6 1 13 BATTERY CHARGING CIRCUIT SEE Fig 27 The supply for the battery comes from the charge terminals at J3 and J4 Battery charge rate is controlled by switching the current through T7 such that the average charging current is 170mA The current flow is monitored at pi...

Page 30: ...PMB6618 power amp In the transceiver the 10 368MHz clock signal SYCL is multiplied to around 1 9GHz using PLL Phase Locked Loop control The TXDA signal is used to control the modulation of this frequency to 1 87GHz to 1 93GHz Received signals are demodulated filtered and sent to the BBIC via the RXDA line 30 KX TCD705RUM KX TCD705RUS ...

Page 31: ...D 7 2 INITIAL POWER TESTS 1 Turn on the 9V supply 2 Check for approx 100mA current on the 9V supply line 3 Check the 3 8V supply rail at TP91 It must be 3 8V 0 2V 4 Check the 2 65V supply rail at TP95 It must be 2 65V 0 2V 31 KX TCD705RUM KX TCD705RUS ...

Page 32: ...Use the minimum amount of stripped exposed cable to solder to the contacts 2 Switch on the 9V supply 3 Set the CMD60 to MANUAL TEST mode 4 Set the CMD60 TRAFFIC CARRIER to 0 5 Invoke the TESTMODE batch file from the PC 6 Press ACCEPT RFPI and SETUP CONNECT on the CMD60 7 Check the power NTP it must be between 20 and 25dBm 8 Press MODULATION 9 Set DATA TYPE to FIG 31 10 Check frequency drift must b...

Page 33: ...DTMF frequency 13 Check that the upper frequency is detected by the line DTMF test set Must be 1477Hz 1 5 14 Enter DTMF_LO to make the base generate the lower DTMF frequency 15 Check that the lower frequency is detected by the line DTMF test set Must be 852Hz 1 5 16 Switch off the 9V power supply 17 Disconnect the telephone line and reconnect the base to the Bell oscillator 18 Switch on the 9V sup...

Page 34: ...Switch the handset on at the keypad 3 Check for approx 120mA current on the supply line for around 10s 4 Check the 3 8V supply rail at TP11 It must be 3 8V 0 2V 5 Check the 2 65V supply rail at the collector of transistor T6 It must be 2 65V 0 2V 6 Switch off the 2 4V supply 34 KX TCD705RUM KX TCD705RUS ...

Page 35: ... a base is not registered to the unit i e FF returned in step 4 then enter SETBASE to induce registration 6 Set the CMD60 to MANUAL TEST mode 7 Enter TESTMODE on the PC 8 Enter RDEEPROM 00 36 05 to obtain the base RFPI identifier 9 Set the RFPI in the CMD60 to the value obtained in the previous step 10 Press SETUP CONNECT on the CMD60 11 Check the power NTP it must be between 20 and 25dBm 12 Press...

Page 36: ...9 TROUBLESHOOTING GUIDE 9 1 HANDSET DOES NOT OPERATE 36 KX TCD705RUM KX TCD705RUS ...

Page 37: ...9 2 HANDSET LINK 37 KX TCD705RUM KX TCD705RUS ...

Page 38: ...38 KX TCD705RUM KX TCD705RUS ...

Page 39: ...9 3 HANDSET DOES NOT LINK 39 KX TCD705RUM KX TCD705RUS ...

Page 40: ...9 4 BATTERY DOES NOT CHARGE 9 5 NO VOICE RECEPTION 40 KX TCD705RUM KX TCD705RUS ...

Page 41: ...9 6 NO VOICE TRANSMISSION 41 KX TCD705RUM KX TCD705RUS ...

Page 42: ...9 7 BASE UNIT DOES NOT LINK 42 KX TCD705RUM KX TCD705RUS ...

Page 43: ...9 8 BASE UNIT CALLER ID PROBLEMS 43 KX TCD705RUM KX TCD705RUS ...

Page 44: ...10 CABINET AND ELECTRICAL PARTS LOCATION BASE UNIT 44 KX TCD705RUM KX TCD705RUS ...

Page 45: ...11 CABINET AND ELECTRICAL PARTS LOCATION HANDSET 45 KX TCD705RUM KX TCD705RUS ...

Page 46: ...12 ACCESSORIES AND PACKING MATERIALS 46 KX TCD705RUM KX TCD705RUS ...

Page 47: ...E CASE for KX TCD705RUM S 7 PQKE10122Z4 CHARGE CASE HOLDER for KX TCD705RUS S 7 PQKE10122Z5 CHARGE CASE HOLDER for KX TCD705RUM S 8 PQKE10123Z1 CHARGER TERMINAL CASE S 9 PQKM10473Y4 UPPER CABINET for KX TCD705RUS S 9 PQKM10473Y5 UPPER CABINET for KX TCD705RUM S 10 PQUS10266Z CRICK SPRING 13 1 2 MAIN P C BOARD PARTS Ref No Part No Part Name Description Remarks PCB1 PQWP1D700RUH MAIN P C BOARD ASS Y...

Page 48: ...1H050CCV 5P S C53 ECUV1H150JCV 15P C55 ECUV1C104KBV 0 1 C56 ECUV1C104KBV 0 1 Ref No Part No Part Name Description Remarks C57 ECUV1C104KBV 0 1 C58 ECUV1C104KBV 0 1 C59 ECUV1C104KBV 0 1 C60 ECUV1H100DCV 10P C61 PQCUV1C224KB 0 22 C62 ECUV1C104KBV 0 1 C63 ECUV1H100DCV 10P C64 ECUV1C683KBV 0 068 C65 ECUV1C104KBV 0 1 C66 ECUV1E333KBV 0 033 C79 ECUV1C104KBV 0 1 C80 ECUV1H101JCV 100P C84 ECUV1H100DCV 10P...

Page 49: ...RMINAL L 120 PQJT10169Y CHARGE TERMINAL R 121 PQKF10497Z1 REAR CABIET for KX TCD705RUS S Ref No Part No Part Name Description Remarks 121 PQKF10497Z5 REAR CABIET for KX TCD705RUM S 122 PQKM10464Z1 FRONT CABINET for KX TCD705RUS S 122 PQKM10464Z4 FRONT CABINET for KX TCD705RUM S 123 PQSA10117Y ANTENNA 124 PQSX10155X RUBBER KEYPAD for KX TCD705RUS 124 PQSX10155Y RUBBER KEYPAD for KX TCD705RUM 125 PQ...

Page 50: ...RJ3GEYJ183 18k R415 ERJ3GEYJ152 1 5k R416 ERJ3GEYJ331 330 R417 ERJ3GEYJ272 2 7k Ref No Part No Part Name Description Remarks R418 ERJ3GEYJ1R0 1 C47 ERJ3GEYJ473 47k CAPACITORS C1 ECUV1C683KBV 0 068 C2 ECUV1C683KBV 0 068 C3 ECUV1C683KBV 0 068 C4 ECST1AD227 220 C5 ECUV1C683KBV 0 068 C6 ECUV1H030CCV 3P C7 ECUV1H220JCV 22P C8 PQCUV1A105KB 1 C10 ECUV1H220JCV 22P C12 ECUV1C104KBV 0 1 C13 ECUV1C104KBV 0 1...

Page 51: ...JCV 220P C438 ECUV1H1R5CCV 1 5 C439 ECUV1H010CCV 1P C440 ECUV1H100DCV 10P C441 ECUV1H100DCV 10P C442 ECUV1H1R2CCV 1 2 C443 ECUV1H1R8CCV 1 8 C444 0603N1R8B500 1 8 C445 ECUV1H100DCV 10P C446 ECUV1C104KBV 0 1 C447 ECUV1H100DCV 10P C448 ECUV1H100DCV 10P C449 ECUV1H180JCV 18P C450 ECUV1H1R5CCV 1 5 C451 ECUV1H010CCV 1P C452 ECUV1H010CCV 1P C455 PQCUV1A105KB 1 C456 ECUV1H1R8CCV 1 8 C457 ECUV1H1R8CCV 1 8 ...

Page 52: ...om default loader A adjust The EEPROM location is set during the production test and should not be overwritten The value is set by the eeprom default loader only if the location contains all 1 s byte 0xFF word FFFFh i e it has never been set EEPROM location which is not set at all d default Same as D but best guess value and or not verified 14 3 EEPROM Layout Address Default Name Type Description ...

Page 53: ...iguration see appendix Amplification by Shift Add coeffecients 0208 0xD5 OnhookMicGain D On hook gain settings for analogue in Bit 0 5 GR1 see Gain index values Bit 6 7 AIG 11 6dB 11 6dB 01 12dB 10 18dB 0209 020B MSB LSB Reserved 020C 0xBB GD1Gain D Gain for GD1 gaincell high DTMF tone see appendix Gain for tonegenerator 020D 0x24 GD2Gain D Gain for GD2 gaincell low DTMF tone see appendix Gain for...

Page 54: ...ndset 2 3 Handset 3 4 Handset 4 5 Handset 5 6 Handset 6 0262 0265 0266 0269 026A 026D 026E 0271 0272 0275 0276 0279 FF FF FF FF FF FF FF FF FF FF FF FF BsNalBarredNumber 1 BsNalBarredNumber 2 BsNalBarredNumber 3 BsNalBarredNumber 4 BsNalBarredNumber 5 BsNalBarredNumber 6 D Barred numbers in BCD on the form Barred number 1 1234 Addr 0262 0x12 Addr 0263 0x34 Addr 0264 0xFF Addr 0265 0xFF 027A 027B 0...

Page 55: ...configuration 2 factory settings Bit 0 Meter pulse 1 enable 0 disable 1 DialToneMode dial tone detection 1 enable 0 disable 2 BusyToneMode busy tone detection 1 enable 0 disable 3 CurrentLimiterMode 1 enable 0 disable 4 RingToneMode Ring tone detection 1 enable 0 disable 5 HookRelayEnable 1 enable 0 disable if same port is used for earth control EarthBreakEnable and HookRelayEnable cannot both be ...

Page 56: ... an outgoing call Bit 0 3 init dial pause if PULSE dial mode If 0fH then normal dial pause is used Bit 4 7 init dial pause if DTMF dial mode if 0fH then normal dial pause is used Unit 500 ms min max 00 0F Defaults to 3 sec and 3 sec 0F17 1BB FF FF Reserved 5 D 14 3 7 Clip configration Address Default Name Type Description 0F37 38 3D 00 Parse Configuration D Clip parse set configuration Bit 0 Etsi ...

Page 57: ...6 01 21 10 57 1B 30 2 05 98 93 6 51 C8 BE 18 76 A8 E4 38 1 01 22 10 4 33 B1 1 86 AA 14 6 69 B8 C0 19 22 A8 E7 38 55 01 2D 10 22 33 A1 1 68 9B AD 6 89 38 C1 19 54 A8 ED 38 9 01 31 10 07 33 93 1 49 9B C2 7 06 48 C1 20 03 C8 EA 39 18 01 3C 9 88 1A C1 1 29 9B 42 7 28 A8 B7 20 49 B8 EA 39 78 01 4A 9 68 2B A5 1 09 9B 2C 7 48 A8 B0 20 84 98 E2 40 21 02 0D 9 5 2B C1 0 89 B9 4B 7 67 C8 C1 21 12 98 E3 41 12...

Page 58: ...B 19 22 5F 30 17 75 41 88 0F 0 07 25 11 77 41 20 56 5E 30 24 76 42 01 0E 0 14 26 11 91 42 22 14 5D 30 38 77 42 08 0D 0 28 27 11 97 43 23 06 5C 30 66 69 42 14 0C 0 56 30 12 04 44 23 56 5B 31 26 7F 42 21 0B 1 16 2F 12 11 45 23 82 61 32 60 7E 42 28 11 2 50 2E 12 18 46 23 95 62 34 19 7D 42 42 12 4 08 2D 12 32 47 24 01 63 35 10 7C 42 70 13 5 00 2C 12 60 50 24 08 64 35 60 7B 43 30 14 5 49 2B 13 20 4F 24...

Page 59: ...4 11 51 3B 19 22 5F 30 17 75 41 88 0F 0 07 25 11 77 41 20 56 5E 30 24 76 42 01 0E 0 14 26 11 91 42 22 14 5D 30 38 77 42 08 0D 0 28 27 11 97 43 23 06 5C 30 66 69 42 14 0C 0 56 30 12 04 44 23 56 5B 31 26 7F 42 21 0B 1 16 2F 12 11 45 23 82 61 32 60 7E 42 28 11 2 50 2E 12 18 46 23 95 62 34 19 7D 42 42 12 4 08 2D 12 32 47 24 01 63 35 10 7C 42 70 13 5 00 2C 12 60 50 24 08 64 35 60 7B 43 30 14 5 49 2B 13...

Page 60: ...d 8 0xA9CB 14 0x0e 7 0x9BC2 15 0x0f 6 0xAA22 16 0x10 5 0xB9A3 17 0x11 4 0x2A10 18 0x12 3 0xAB92 19 0x13 2 0xBBA4 20 0x14 1 0x3AB2 21 0x15 0 0x3BCA 22 0x16 1 0x2BA5 23 0x17 2 0x1B30 24 0x18 3 0x234A 25 0x19 4 0x224B 26 0x1A 5 0x0A94 27 0x1B 6 0x3115 28 0x1C 7 0x0349 29 0x1D 8 0x0249 30 0x1E 9 0x10B4 31 0x1F 10 0x0131 32 0x20 11 0x0113 33 0x21 12 0x0110 34 0x22 13 0x002D 35 0x23 14 0x001D 36 0x24 15...

Page 61: ...0x0b 10 dB 0x0B5B 12 0x0c 9 dB 0x0CBD 13 0x0d 8 dB 0x0E4B 14 0x0e 7 dB 0x100A 15 0x0f 6 dB 0x11FF 16 0x10 5 dB 0x1431 17 0x11 4 dB 0x16A8 18 0x12 3 dB 0x196C 19 0x13 2 dB 0x1C86 20 0x14 1 dB 0x2001 21 0x15 0 dB 0x23E8 22 0x16 1 dB 0x284A 23 0x17 2 dB 0x2D35 24 0x18 3 dB 0x32B9 25 0x19 4 dB 0x38E9 26 0x1A 5 dB 0x3FDB 27 0x1B 6 dB 0x47A6 28 0x1C 7 dB 0x5064 29 0x1D 8 dB 0x5A33 30 0x1E 9 dB 0x6534 31...

Page 62: ...General Setup Address Default Name Type Description 00 01 EepromOscillator D Frequency adjustment 0002 20 ModulationDeviation A Mudulation adjustment 0030 0034 00 00 IPEI A IPEI 0036 003A PARK_1 PARK for registration 1 003B 003F PARK_2 PARK for registration 2 0040 0044 PARK_3 PARK for registration 3 0045 0049 PARK_4 PARK for registration 4 004A FF PLI_1 D Pli for registration 1 If set to FF the re...

Page 63: ...red in BCD some special characters 20D 28E Redial D 28F 00 LastRedialEntry D 290 299 FF HotKey D index 0 speeddialentry for key 0 index 1 speeddialentry for key 1 index 9 speeddialentry for key 9 29A 29B HSPinCode 4 BCD Digits 29C 00 EESubscriptionNumber D Selected subscription 29D 2A4 00 EESubscriptionInfo D HandsetNumber And BaseType for all subscriptions 2A5 2A6 FF FF AlarmTime D 4 BCD Digits H...

Page 64: ...mMelodyindex D Melody played when alarm is sounded 34B 03 EERingerVolume D Volume of the ringer 34C 02 EEVoiceVolume D Volume of the earpice 34D 03 EESpPhVolume D Volume of the speakerphone 15 3 4 Melodies Address Default Name Type Description 34E 377 MelodyTable Table telling start of each melody end of last melody 21 2 byte 378 777 Melodies Ringermelodies 15 3 5 MMI Address Default Name Type Des...

Page 65: ...11 SpPhGX index D Gain transmit for speakerphone values ranging from 0x00 to 0x24 each step representing 1 dB 1F27 98 SpPhGR index D Bit7 AOG when speakerphone 0 as default Bit6 AOG2 when speakerphone 1 as default Bit5 Extra 6dB attenuation using the method described on page 120 in T672X XV01D7 7600 0 0dB 1 6dB when speakerphone 1 as default Gain receivet for speakerphone values ranging from 0x00 ...

Page 66: ...15 3 10 Phonebook FAT Address Default Name Type Description 1F37 1FFF FF SortedListEeprom Sorted list used in phonebook 66 KX TCD705RUM KX TCD705RUS ...

Page 67: ... M 110R 110R 110R N M N M N M N M D6 N M IC7 IC3 IC2 LINE VOLTAGE 60V DC 60V DC 60V DC ON HOOK 4 8V DC OFF HOOK 3 8V DC 12V DC 1 5V DC 2 65V PULLS TOWARDS 0V DURING RING HANDSET ON CHARGE 12V 5V 1 2 3 4 5 6 7 8 N M N M N M N M N M N M 0R N M 68 KX TCD705RUM KX TCD705RUS ...

Page 68: ... ON HOOK 4 6V DC OFF HOOK RX AF 0V ON HOOK 2 8V OFF HOOK 0V ON HOOK 0 7V OFF HOOK 2 65V DC TX AF RING CLIP CALLER ID CHARGE PULSE 1 2 3 4 5 6 7 8 KX TCD705RUM KX TCD705RUS SCHEMATIC DIAGRAM BASE UNIT Line Interface 69 KX TCD705RUM KX TCD705RUS ...

Page 69: ...16 2 Base Band IC5 IC9 IC8 RX AF TX AF CLIP FREQ 10 368MHz TX DATA CHARGE PULSE RING 1V 1 2 3 4 5 6 7 10 11 12 13 70 KX TCD705RUM KX TCD705RUS ...

Page 70: ...IC1 RX DATA 10 368MHz burst 2 5V peak 70ns 700ms 1 2 3 4 5 6 7 10 11 12 13 KX TCD705RUM KX TCD705RUS SCHEMATIC DIAGRAM BASE UNIT Base Band 6K2 71 KX TCD705RUM KX TCD705RUS ...

Page 71: ...16 3 RF module IC1 3 4 5 6 7 2 1 IC402 72 KX TCD705RUM KX TCD705RUS ...

Page 72: ...N M 3 4 5 6 7 2 1 IC402 IC400 KX TCD705RUM KX TCD705RUS SCHEMATIC DIAGRAM BASE UNIT RF Unit 73 KX TCD705RUM KX TCD705RUS ...

Page 73: ... 17 1 Handset 1 2 9 11 15 16 20 21 28 29 31 32 35 48 10 36 41 42 47 IC3 3 8V DC Frequency 160kHz 7 2V 3 4V to 4 8V SWITCHING DURING CHARGE 2 2V LED ON 0V LED OFF 2 65V DC 2 4V 2 65V 0V 0V 4 1V DTC143X 74 KX TCD705RUM KX TCD705RUS ...

Page 74: ... 47 48 10 IC1 IC2 3 8V DC 2 65V 0V RX AF TX AF 1 8V DC IN TALK MODE To RF SECTION 2 65V RX DATA TX DATA 0V Frequency 10 368MHz 1V 10 368MHz burst 2V 400ms typically 0 8V 0V KX TCD705RUM KX TCD705RUS SCHEMATIC DIAGRAM HANDSET Handset 75 KX TCD705RUM KX TCD705RUS ...

Page 75: ...17 2 RF Section IC402 3 4 5 2 1 76 KX TCD705RUM KX TCD705RUS ...

Page 76: ...IC400 IC402 3 4 5 2 1 KX TCD705RUM KX TCD705RUS SCHEMATIC DIAGRAM HANDSET RF Unit 77 KX TCD705RUM KX TCD705RUS ...

Page 77: ...3 8V TP91 TP57 RF module pin12 SYRI clock signal 1 2 3 4 5 6 7 8 9 10 11 12 35 34 33 32 31 30 29 RF pin out 28 27 26 25 24 13 14 15 16 17 18 19 20 21 22 23 45 44 36 43 42 41 40 39 38 37 2 65V TP95 TP50 Off hook Voltage IC9 IC5 IC8 IC1 IC7 IC3 IC2 IC4 KX TCD705RUM KX TCD705RUS 79 ...

Page 78: ...18 2 Flow Solder Side View J2 pin1 J102 J104 J100 J101 J103 SDA 0V 2 65V MODE_SEL SCL J2 pin2 KX TCD705RUM KX TCD705RUS 80 ...

Page 79: ...IRING CONNECTION DIAGRAM HANDSET 19 1 Component View IC402 TP24 10 368MHz clock TP11 3 8V T6 collector 2 65V 0V ANT J1 2 4V supply J2 0V supply GND 2 65V SDA SDC DOWN LOAD IC1 IC3 IC402 IC400 IC2 KX TCD705RUM KX TCD705RUS 81 ...

Page 80: ...19 2 Flow Solder Side View KX TCD705RUM KX TCD705RUS 82 ...

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