Panasonic KX-TCD705RUM Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. Cordless Telephone
  5. KX-TCD705RUM
  6. Service manual
Panasonic KX-TCD705RUM Service Manual

Panasonic KX-TCD705RUM Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Telephone Equipment
KX-TCD705RUM
KX-TCD705RUS
Digital Cordless Phone
Metallic Grey Version
Silver Version
(for Russia)
© 2001 Kyushu Matsushita Electric Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. KM40110700C3
Unauthorized
copying
and

Advertisement

Table of Contents
loading

Related Manuals for Panasonic KX-TCD705RUM

Summary of Contents for Panasonic KX-TCD705RUM

  • Page 1 ORDER NO. KM40110700C3 Telephone Equipment KX-TCD705RUM KX-TCD705RUS Digital Cordless Phone Metallic Grey Version Silver Version (for Russia) © 2001 Kyushu Matsushita Electric Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-TCD705RUM / KX-TCD705RUS CONTENTS Page Page 1 LOCATION OF CONTROLS 7.5. TELEPHONE LINE TESTS 1.1. Base Unit 7.6. CHARGE CURRENT TESTS 1.2. Handset 8 CHECK PROCEDURE (HANDSET) 1.3. Displays 8.1. EQUIPMENT REQUIRED 2 DISASSEMBLY INSTRUCUTIONS 8.2. INITIAL POWER TESTS 2.1. Assembly the LCD to P.C. Board (Handset) 8.3.
  • Page 3 KX-TCD705RUM / KX-TCD705RUS 15.3. EEPROM contents 18 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM 15.4. MEMO (BASE UNIT) 16 SCHEMATIC DIAGRAM (BASE UNIT) 18.1. Component View 16.1. Line Interface 18.2. Flow Solder Side View 16.2. Base Band 19 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM 16.3.

  • Page 4: Location Of Controls

    KX-TCD705RUM / KX-TCD705RUS 1 LOCATION OF CONTROLS 1.1. Base Unit 1.2. Handset...

  • Page 5: Displays

    KX-TCD705RUM / KX-TCD705RUS 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...

  • Page 6: Disassembly Instrucutions

    KX-TCD705RUM / KX-TCD705RUS 2 DISASSEMBLY INSTRUCUTIONS Shown in Fig.- To Remove Remove Lower Cabinet Screws (2.6 × 10)....(A) × 2 Main P.C.B of base Screw (2.6 × 10)....(B) × 1 Main P.C.B of base Charge wire solder Rear Cabinet of handset Screws (2 ×...

  • Page 7: Assembly The Lcd To P.c. Board (Handset)

    KX-TCD705RUM / KX-TCD705RUS 2.1. Assembly the LCD to P.C. Board (Handset)

  • Page 8: Settings

    • 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 Panasonic Sales Shop can offer you more information about connection possibilities.

  • Page 9: Using The Belt Clip

    KX-TCD705RUM / KX-TCD705RUS 3.2. Using the Belt Clip You can hang the handset on your belt or pocket using the belt clip. 3.3. Batteries 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.

  • Page 10: Battery Information

    KX-TCD705RUM / KX-TCD705RUS 3.3.5. Battery Information After your batteries are fully charged: • Battery life may vary depending on usage conditions, such as: − when viewing the Caller ID Caller List, and − ambient temperature. • Clean the handset charge contacts with a soft, dry cloth.

  • Page 11: Operations

    KX-TCD705RUM / KX-TCD705RUS 4 OPERATIONS This section is intended to provide 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.

  • Page 12: Handset Programming

    KX-TCD705RUM / KX-TCD705RUS 4.6. Handset Programming 4.6.1. Change the Initial Settings...
  • Page 13 KX-TCD705RUM / KX-TCD705RUS...
  • Page 14 KX-TCD705RUM / KX-TCD705RUS...

  • Page 15: Base Programming

    KX-TCD705RUM / KX-TCD705RUS 4.7. Base Programming 4.7.1. Change the Initial Settings 4.7.2. Bell Selection 4.7.3. Select the Base Unit Ringer Volume...
  • Page 16 KX-TCD705RUM / KX-TCD705RUS 4.7.4. Select the Dialling Mode 4.7.5. Cancelling a Handset 4.7.6. Reset Base Unit...

  • Page 17: Circuit Operation (Base Unit)

    KX-TCD705RUM / KX-TCD705RUS 5 CIRCUIT OPERATION (BASE UNIT) BLOCK DIAGRAM BASEBAND SECTION AND LINE INTERFACE (BASE UNIT) 5.1. THE BASE-BAND SECTION 5.1.1. INTRODUCTION (SEE Fig. 17) The base-band section consists of a base-band integrated circuit (BBIC), a Flash PROM and an EEPROM.
  • Page 18 KX-TCD705RUM / KX-TCD705RUS 5.1.3. FLASH PROM (SEE Fig. 18) The 2 Mbit (IC5) Flash PROM contains the operational firmware for the microcontroller. It is interfaced to the data/address/control bus using address lines A0 to A17, data lines D0 to D7, and chip select (pin 30), output enable (pin 32), and write (pin 7).
  • Page 19 Circuit Diagram...

  • Page 20: The Line Interface Section (See Block Diagram Fig. 17)

    KX-TCD705RUM / KX-TCD705RUS 5.2. THE LINE INTERFACE SECTION (SEE BLOCK DIAGRAM Fig. 17) 5.2.1. INTRODUCTION This section consists of the telephone line interface, bell detector, charge-pulse detector, hook switch, pulse dialing circuits, audio circuits, DC mask & line impedance circuits, power supplies, and battery charger circuits.
  • Page 21 KX-TCD705RUM / KX-TCD705RUS 5.2.5. HOOKSWITCH (SEE Fig. 20) T8 is the hookswitch, driven by T9. When the phone is “off-hook”, the HOOK control signal from the BBIC will be a high logic level (+3V), and both transistors will be on, thus T8 will “loop” the line. The zenner diode D10 protects transistors T11 to T13 against transient line voltages.
  • Page 22 KX-TCD705RUM / KX-TCD705RUS 5.2.8. POWER SUPPLIES (SEE Fig. 21) The AC adaptor for the KX-TCD705 provides unregulated DC through J2 for the handset 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.

  • Page 23: Rf Module

    KX-TCD705RUM / KX-TCD705RUS 5.3. RF MODULE BLOCK DIAGRAM RF MODULE 5.3.1. RF MODULE (SEE BLOCK DIAGRAM Fig.22) The RF Module consists of two main components: the PMB6610 transceiver and the PMB6818 power amp. In the transceiver the 10.368MHz clock signal SYCL is multiplied to around 1.9GHz using PLL (Phase Locked Loop) control.

  • Page 24: Circuit Operation (Handset)

    KX-TCD705RUM / KX-TCD705RUS 6 CIRCUIT OPERATION (HANDSET) BLOCK DIAGRAM BASEBAND SECTION (HANDSET)

  • Page 25: The Base Band Section

    KX-TCD705RUM / KX-TCD705RUS 6.1. THE BASE BAND SECTION 6.1.1. INTRODUCTION The base-band section consists of a base-band integrated circuit (BBIC), a Flash PROM, an EEPROM, an LCD Display, a Microphone, an Earpiece, and power supply/battery management circuits. 6.1.2. THE BASE-BAND INTEGRATED CIRCUIT (BBIC) The PMB6723 (IC1) is a CMOS device designed to handle all the audio, signal and data processing needed in a DECT handset.
  • Page 26 KX-TCD705RUM / KX-TCD705RUS 6.1.6. AUDIO PATH - TX AUDIO (SEE Fig. 25) The audio signal from the microphone (TP23) enters the BBIC at pin 44. RF decoupling and signal conditioning are provided by C17, R21, C14 and C25. In the BBIC the signal passes through the analogue section where it is amplified and converted to a digital audio stream signal.
  • Page 27 KX-TCD705RUM / KX-TCD705RUS Circuit Diagram...
  • Page 28 KX-TCD705RUM / KX-TCD705RUS 6.1.9. KEYBOARD (SEE Fig. 26) The keyboard “On” button is connected directly to pin 33 and 28 of the BBIC. When pressed it turns the handset on and off. All other keys are connected in a row/column matrix. They are scanned in five rows using scan pulses (only active when keys are pressed) from IC1 pins 15 to 19.
  • Page 29 KX-TCD705RUM / KX-TCD705RUS 6.1.11. BATTERY SUPPLY (SEE Fig. 27) A switch mode boost converter is used to provide a 3.8V supply from the battery. This supply is sensed by the BBIC through pin 26 (TP14) so that the switching rate can be controlled by a FET (T3) driven from pin 24 (TP13). A resistor on the Source of the FET provides a current sense at pin 25 (TP12).

  • Page 30: Rf Section

    KX-TCD705RUM / KX-TCD705RUS 6.2. RF SECTION 6.2.1. BLOCK DIAGRAM RF SECTION (HANDSET) The RF section consists of two main components: The PMB6610 transceiver and the PMB6618 power amp. In the transceiver the 10.368MHz clock signal SYCL is multiplied to around 1.9GHz using PLL (Phase Locked Loop) control.

  • Page 31: Check Procedure (Base Unit)

    KX-TCD705RUM / KX-TCD705RUS 7 CHECK PROCEDURE (BASE UNIT) 7.1. EQUIPMENT REQUIRED 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.

  • Page 32: Set The Clock Frequency

    KX-TCD705RUM / KX-TCD705RUS 7.3. SET THE CLOCK FREQUENCY 1. Turn on the 9V supply. 2. Enter "DEACTMAC" from the PC to switch off the RF unit. 3. Enter "CONTTX 0" to start continuous RF transmission. 4. Enter "RDEEPROM 00 00 0F" to display the first 15 hexadecimal bytes of the EEPROM.

  • Page 33: Telephone Line Tests

    KX-TCD705RUM / KX-TCD705RUS 7.5. TELEPHONE LINE TESTS 1. Switch on the 9V power supply. 2. Connect a telephone cord from the base unit to the line/DTMF test set. 3. Enter "HOOKOFF" from the PC to invoke an off-hook condition. 4. Set the current limit to 40mA on the line simulator.

  • Page 34: Check Procedure (Handset)

    KX-TCD705RUM / KX-TCD705RUS 8 CHECK PROCEDURE (HANDSET) 8.1. EQUIPMENT REQUIRED 8.2. INITIAL POWER TESTS 1. Switch on the 2.4V supply. 2. Switch the handset on at the keypad. 3. Check for approx. 120mA current on the supply line for around 10s.

  • Page 35: Set Clock Frequency

    KX-TCD705RUM / KX-TCD705RUS 8.3. SET CLOCK FREQUENCY 1. Turn on the 2.4V supply. 2. Switch the handset on at the keypad. 3. Enter "DEACTMAC" from the PC to switch off the RF unit. 4. Enter "CONTTX 0" to start continuous RF transmission.

  • Page 36: Troubleshooting Guide

    KX-TCD705RUM / KX-TCD705RUS 9 TROUBLESHOOTING GUIDE 9.1. HANDSET: DOES NOT OPERATE...

  • Page 37: Handset: Link

    KX-TCD705RUM / KX-TCD705RUS 9.2. HANDSET: LINK...
  • Page 38 KX-TCD705RUM / KX-TCD705RUS...

  • Page 39: Handset: Does Not Link

    KX-TCD705RUM / KX-TCD705RUS 9.3. HANDSET: DOES NOT LINK...

  • Page 40: Battery Does Not Charge

    KX-TCD705RUM / KX-TCD705RUS 9.4. BATTERY DOES NOT CHARGE 9.5. NO VOICE RECEPTION...

  • Page 41: No Voice Transmission

    KX-TCD705RUM / KX-TCD705RUS 9.6. NO VOICE TRANSMISSION...

  • Page 42: Base Unit: Does Not Link

    KX-TCD705RUM / KX-TCD705RUS 9.7. BASE UNIT: DOES NOT LINK...

  • Page 43: Base Unit : Caller Id Problems

    KX-TCD705RUM / KX-TCD705RUS 9.8. BASE UNIT : CALLER ID PROBLEMS...

  • Page 44: Cabinet And Electrical Parts Location (Base Unit)

    KX-TCD705RUM / KX-TCD705RUS 10 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)

  • Page 45: Cabinet And Electrical Parts Location (Handset)

    KX-TCD705RUM / KX-TCD705RUS 11 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET)

  • Page 46: Accessories And Packing Materials

    KX-TCD705RUM / KX-TCD705RUS 12 ACCESSORIES AND PACKING MATERIALS...

  • Page 47: Replacement Parts List

    KX-TCD705RUM / KX-TCD705RUS 13 REPLACEMENT PARTS LIST This replacement parts list is for KX-TCD705RUM/ KX- Ref. Part No. Part Name & Description Remarks TCD705RUS only. PQJT10173Z CHARGE TERMINAL Notes: PQKE10121Z4 CHARGE CASE (for KX- TCD705RUS) 1. The marking (RTL) indicates that the Retention Time is...
  • Page 48 KX-TCD705RUM / KX-TCD705RUS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks ERJ3GEYJ274 270k ECUV1C104KBV ERJ3GEYJ102 ECUV1C104KBV ERJ1WYJ111 ECUV1C104KBV ERJ3GEYJ101 ECUV1H100DCV PQ4R18XJ000 PQCUV1C224KB 0.22 ERJ3GEYJ104 100k ECUV1C104KBV ERJ3GEYJ272 2.7k ECUV1H100DCV ERJ3GEYJ101 ECUV1C683KBV 0.068...

  • Page 49: Handset

    PQGG10116Z5 FRONT CABIET GRILL (for KX- MA112 DIODE(SI) TCD705RUM) MA8047 DIODE(SI) PQGP10176Y1 LCD PANEL (for KX-TCD705RUS) B3ABB0000001 DIODE(SI) PQGP10176Y2 LCD PANEL (for KX-TCD705RUM) B3ABB0000001 DIODE(SI) PQGT14534Z NAME LABEL (for KX-TCD705RUS) B3ABB0000001 DIODE(SI) PQGT14535Z NAME LABEL (for KX-TCD705RUM) B3ABB0000001 DIODE(SI) PQHS10457Z...
  • Page 50 KX-TCD705RUM / KX-TCD705RUS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L405 PSLQR2B2N7S COIL R418 ERJ3GEYJ1R0 L406 PSLQR2B2N7S COIL ERJ3GEYJ473 PQLQR2M6N8KT COIL (CAPACITORS) (CONNECTORS) ECUV1C683KBV 0.068 PSJS22A62Z LCD CONNECTOR ECUV1C683KBV 0.068 PQJJ1C002Z...
  • Page 51 MATERIALS Ref. Part No. Part Name & Description Remarks PQJA10075Z TEL CORD PQKE10120Z1 BELT CLIP (for KX-TCD705RUS) PQKE10120Z2 BELT CLIP (for KX-TCD705RUM) PQLV1CEZ AC ADAPTOR PQQX13068Z INSTRUCTION BOOK XZB18X22A02 POLY BAG (for Base Unit) PQPP10084Z POLY BAG (for Handset) XZB10X12A05...

  • Page 52: Eeprom Layout (Base Unit)

    KX-TCD705RUM / KX-TCD705RUS 14 EEPROM LAYOUT (BASE UNIT) 14.1. Scope The purpose of this section is to describe the layout of the EEPROM (IC9) for the TCD705 Base Unit. The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the base e.g.

  • Page 53: Audio Setup

    KX-TCD705RUM / KX-TCD705RUS 14.3.2. MeterPulse Billing Address Default Name Type Description 0140-0141 00 01 MpBill.Unit Meter-pulse billing unit MSB LSB 0142-0145 00..00 MpBill.PstnLineTotal Meter-pulse billing total for PSTN line. MSB in 0160h. 0146-0149 00..00 MpBill.Hs1 Meter-pulse billing total for HS1 014A-014D 00..00...
  • Page 54 KX-TCD705RUM / KX-TCD705RUS 14.3.5. BsNalTask Address Default Name Type Description 0240 0x01 ARSCountryCorrespondance ARS Country Correspondance 0 = Negative matching: No area code match -> Carrier is inserted. 1 = Positive matching: Match on area code -> Carrier is inserted.
  • Page 55 KX-TCD705RUM / KX-TCD705RUS 14.3.6. PSTN Line Address Default Name Type Description 0F00 UserCfg-1.Mode User configuration (MMI) - mode settings 1. 0 : "R" mode, 0=earth break, 1=loop break 2..1: Dial mode, 00:pulse, 01:DTMF 3..7: Reserved 0F01 UserCfg-2.Mode User configuration (MMI) - mode settings 2.
  • Page 56 KX-TCD705RUM / KX-TCD705RUS Address Default Name Type Description 0F12 RingTermToU100 Ring terminate time-out period. This is the max time that must elapse between two ring-voltage bursts before the new ring-voltage is registered as a new incoming call. Unit: 100 ms. defaults to approx 10 sec.

  • Page 57: Appendix

    KX-TCD705RUM / KX-TCD705RUS 14.4. Appendix 14.4.1. Gain for transmit and receive [dB] [dB] [dB] [dB] [dB] 00 00 16.06 31 15 5.92 BB 22 2.72 39 20 11.02 48 D7 29.51 00 01 16.9 21 41 5.73 AB 92 2.92 A9 24 11.2...
  • Page 58 KX-TCD705RUM / KX-TCD705RUS 14.4.2. Gain for tonegenerator [dB] [dB] [dB] [dB] [dB] 6.02 -6.09 -17.79 -26.58 -36.26 3.52 -6.16 -17.93 -28.16 -36.40 1.94 -6.30 -17.99 -29.08 -36.68 1.02 -6.58 -18.06 -29.58 -37.28 0.53 -7.18 -18.13 -29.84 -38.62 0.27 -8.52 -18.20 -29.97...
  • Page 59 KX-TCD705RUM / KX-TCD705RUS 14.4.3. Amplification by Shift & Add coeffecients [dB] [dB] [dB] [dB] [dB] 6.02 -6.09 -17.79 -26.58 -36.26 3.52 -6.16 -17.93 -28.16 -36.40 1.94 -6.30 -17.99 -29.08 -36.68 1.02 -6.58 -18.06 -29.58 -37.28 0.53 -7.18 -18.13 -29.84 -38.62 0.27...
  • Page 60 KX-TCD705RUM / KX-TCD705RUS 14.4.4. Gain index values Index Index Gain DspRam (dec) (hex) (dB) 0x00 0xC8C1 0x01 0x48C1 0x02 0xB8C0 0x03 0x98A6 0x04 0x48B4 0x05 0x28B7 0x06 0xC8B1 0x07 0x9931 0x08 0xC915 0x09 0x9A0D 0x0a 0x3920 0x0b 0xB923 0x0c 0xB931...
  • Page 61 KX-TCD705RUM / KX-TCD705RUS 14.4.5. Speakerphone gain DspRam Index Attenuation 0x02DA 0/0x00 -21 dB 0x0333 1/0x01 -20 dB 0x0397 2/0x02 -19 dB 0x0407 3/0x03 -18 dB 0x0485 4/0x04 -17 dB 0x0512 5/0x05 -16 dB 0x05B0 6/0x06 -15 dB 0x0662 7/0x07 -14 dB...

  • Page 62: Eeprom Layout (Handset)

    KX-TCD705RUM / KX-TCD705RUS 15 EEPROM LAYOUT (HANDSET) 15.1. Scope The purpose of this section is to describe the layout of the EEPROM (IC2) TCD115 handset. The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the handset e.g.
  • Page 63 KX-TCD705RUM / KX-TCD705RUS Address Default Name Type Description 0175 ZAP_3 ZAP for registration 3 0176 STATUS_3 Status for registration 3 0177-0186 ?? .. ?? UAK_3 UAK for registration 3 0187-018F ?? .. ?? Reserved Protocol data 0190-0194 ?? .. ??
  • Page 64 KX-TCD705RUM / KX-TCD705RUS Address Default Name Type Description 2AE - 2B0 FF FF FF AvailableLanguages Bit 0: 0:Disable, 1:Enable Spanish Bit 1: 0:Disable, 1:Enable Norwegian Bit 2: 0:Disable, 1:Enable French Bit 3: 0:Disable, 1:Enable Italian Bit 4: 0:Disable, 1:Enable Danish...
  • Page 65 KX-TCD705RUM / KX-TCD705RUS Address Default Name Type Description 1F01 UIConfig00 bit 0 - Direct call 1 = on /0 = off bit 1 - StandbyDisplay00 00 = Off / 01 = Clock bit 2 - StandbyDisplay01 10 = PpNo / 11 = FpNo...
  • Page 66 KX-TCD705RUM / KX-TCD705RUS 15.3.10. Phonebook-FAT Address Default Name Type Description 1F37-1FFF SortedListEeprom Sorted list used in phonebook...
  • Page 67 KX-TCD705RUM / KX-TCD705RUS 16 SCHEMATIC DIAGRAM (BASE UNIT) 16.1. Line Interface LINE VOLTAGE 60V DC +60V DC ON-HOOK N.M. +4.8V DC OFF-HOOK N.M. 60V DC 1.5V DC N.M. N.M. N.M. +2.65V PULLS TOWARDS N.M. N.M. N.M. 0V DURING RING 12V DC 3.8V DC...

  • Page 68: Schematic Diagram (Base Unit)

    KX-TCD705RUM / KX-TCD705RUS 0V ON-HOOK +4.6V DC OFF-HOOK 0V ON-HOOK +2.8V OFF-HOOK RX-AF 2.2uF 0V ON-HOOK +0.7V OFF-HOOK TX-AF CLIP (CALLER ID) CHARGE PULSE RING 2.65V DC KX-TCD705RUM/ KX-TCD705RUS: SCHEMATIC DIAGRAM (BASE UNIT) Line Interface...

  • Page 69: Base Band

    KX-TCD705RUM / KX-TCD705RUS 16.2. Base Band FREQ 10.368MHz RX-AF TX-AF CHARGE PULSE CLIP RING TX-DATA...
  • Page 70 KX-TCD705RUM / KX-TCD705RUS 10.368MHz burst 70ns 700ms +2.5V peak RX-DATA KX-TCD705RUM/ KX-TCD705RUS: SCHEMATIC DIAGRAM (BASE UNIT) Base Band...

  • Page 71: Rf Module (Ic1)

    KX-TCD705RUM / KX-TCD705RUS 16.3. RF module (IC1) IC402...
  • Page 72 KX-TCD705RUM / KX-TCD705RUS IC402 IC400 KX-TCD705RUM/ KX-TCD705RUS: SCHEMATIC DIAGRAM (BASE UNIT) RF Unit...

  • Page 73: Handset

    KX-TCD705RUM / KX-TCD705RUS 17 SCHEMATIC DIAGRAM (HANDSET) 17.1. Handset Frequency 160kHz 4.1V 3.8V DC 2.4V 2.65V DC 3.4V to 4.8V SWITCHING DURING CHARGE 7.2V 2.2V LED ON 0V LED OFF DTC143X 2.65V...

  • Page 74: Schematic Diagram (Handset)

    KX-TCD705RUM / KX-TCD705RUS 3.8V DC Frequency 10.368MHz RX-AF TX-AF 1.8V DC IN TALK MODE To RF SECTION 2.65V RX-DATA TX-DATA 10.368MHz burst 2.65V s typically 0.8V KX-TCD705RUM/ KX-TCD705RUS: SCHEMATIC DIAGRAM (HANDSET) Handset...

  • Page 75: Rf Section

    KX-TCD705RUM / KX-TCD705RUS 17.2. RF Section IC402...
  • Page 76 KX-TCD705RUM / KX-TCD705RUS IC402 IC400 KX-TCD705RUM/ KX-TCD705RUS: SCHEMATIC DIAGRAM (HANDSET) RF Unit...

  • Page 77: Circuit Board And Wiring Connection Diagram

    KX-TCD705RUM / KX-TCD705RUS 18 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM (BASE UNIT) 18.1. Component View 2.65V 3.8V TP95 TP91 IC2/IC4 TP57 RF module pin12 TP50 "SYRI" clock signal Off-hook Voltage RF pin-out...
  • Page 78 KX-TCD705RUM / KX-TCD705RUS 18.2. Flow Solder Side View pin1 (+) pin2 (-) MODE_SEL 2.65V J100 J102 J104 J101 J103...

  • Page 79: Component View

    KX-TCD705RUM / KX-TCD705RUS 19 CIRCUIT BOARD AND WIRING CONNECTION DIAGRAM (HANDSET) 19.1. Component View J1, +2.4V TP11 T6 collector TP24 supply 3.8V 2.65V 10.368MHz clock 2.65V IC400 DOWN LOAD J2, 0V supply...

  • Page 80: Flow Solder Side View

    KX-TCD705RUM / KX-TCD705RUS 19.2. Flow Solder Side View...

This manual is also suitable for:

Kx-tcd705rus

Table of Contents