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Panasonic KX-TCD445BXS Service Manual
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Panasonic KX-TCD445BXS Service Manual

Panasonic KX-TCD445BXS Service Manual

Digital cordless answering system
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Telephone Equipment
KX-TCD445BXS
KX-TCD445BXT
KX-TCD445BXF
KX-A144BXS
KX-A144BXT
KX-A144BXF
Digital Cordless Answering System
New Silver Version
Titanium Black Version
Metallic Blue Version
(for Asia, Middle Near East and Other areas)
© 2004 Panasonic Communications Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. KM40406482C3
Unauthorized
copying
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Summary of Contents for Panasonic KX-TCD445BXS

  • Page 1 KX-A144BXT KX-A144BXF Digital Cordless Answering System New Silver Version Titanium Black Version Metallic Blue Version (for Asia, Middle Near East and Other areas) © 2004 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Note: Because CONTENTS 4 to 8 are the extracts from the Operating Instructions of this model, they are subject to change without notice. Please refer to the original Operating Instructions for further information.
  • Page 3 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 16.2. Handset 30 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT) 17 HOW TO CHECK THE HANDSET SPEAKER OR RECEIVER 56 18 FREQUENCY TABLE (MHz) 31 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET) 80...

  • Page 4: About Lead Free Solder (Pbf: Pb Free)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 1 ABOUT LEAD FREE SOLDER (PbF: Pb free) Note: In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that contains lead.

  • Page 5: How To Recognize That Pb Free Solder Is Used

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 1.2. How to recognize that Pb Free solder is used 1.2.1. Base Unit PCB Marked (Component View) MODE J101 J103 J104 J102 J105 CHARGE CHARGE TP13 TP202 TP15...
  • Page 6 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 1.2.2. Handset PCB Marked (Component View) Marked TALK BOOK LED108 LEFT LED106 LED107 DOWN REDIAL RIGHT LED105 LED104 PROG POWER (Flow Solder Side View) Note: The locations of the “PbF” mark are subject to change without notice.

  • Page 7: For Service Technicians

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 2 FOR SERVICE TECHNICIANS ICs and LSIs are vulnerable to static electricity. When repairing, the following precautions will help prevent recurring malfunctions. 1. Cover the plastic parts boxes with aluminum foil.

  • Page 8: Battery

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 4 BATTERY 4.1. Battery Installation 1. Insert the batteries negative (-) terminal first. 2. Close the battery cover. Note: • Use only rechargeable HHR-4EPT (Ni-MH)/P-4NPT (Ni-Cd) batteries. 4.2.

  • Page 9: Battery Life

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 4.3. Battery Life After your Panasonic batteries are fully charged, you can expect the following performance: Note: • The included batteries are Ni-MH batteries. • Battery operating time may be shortened depending on usage conditions and ambient temperature.

  • Page 10: Location Of Controls

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 5 LOCATION OF CONTROLS 5.1. Base Unit 5.2. Handset...

  • Page 11: Settings

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 6 SETTINGS Important Information General • Use only the power supply included with this product. • Do not connect the AC adaptor to any AC outlet other than a standard 220-240 V AC outlet.

  • Page 12: Ringer Volume

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 6.1.2. Charger Unit • The AC adaptor must remain connected at all times (It is normal for the adaptor to feel warm during use). • Use only the AC adaptor PQLV200BXZ.

  • Page 13: Pin Code

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 6.3. PIN Code 6.3.1. Base Unit For Service Hint: *: If the current 4-digit PIN is forgotten, press and you will be able to enter new PIN. 6.3.2.

  • Page 14: Reset

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 6.4. Reset 6.4.1. Base Unit Note: • The emergency number and TAM setting will not be reset. Base Unit Initial Settings Function Initial Setting Remarks (selectable options) Base Unit Ringer Volume...

  • Page 15: Key Lock

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Handset Initial Settings Function Initial Setting Remarks (selectable options) Select Base Unit Auto Time Alarm Mode OFF/Once/Daily Alarm Time Clear Handset Ringer Volume 1 to 6, OFF Handset External Ringer Pattern...

  • Page 16: Setting Call Restriction

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 6.8. Setting Call Restriction You can restrict selected handsets from dialling certain phone numbers. You can assign up to 10 phone numbers (memory locations 1-10) to be restricted per handset. If a restricted number is dialled, the call will not be connected and the restricted number will flash on the display.

  • Page 17: Selecting The Display Language

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 6.11. Selecting the Display Language 10 display languages are available. Note: • If you select a language you cannot read, reset the handset to its default settings. Refer to Handset (P.14) in “Reset”.

  • Page 18: Display

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 7 DISPLAY 7.1. Handset Display For Service Hint: icon will be displayed if the unit took a signal from Telephone Company as a Voice Message signal. In that case, press the left button of the Navigator Key for a while.
  • Page 19 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF /...

  • Page 20: Before Requesting Help (Troubleshooting)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 7.3. Before Requesting Help (Troubleshooting) If you still have difficulties after following the instructions in this section, disconnect the AC adaptor and turn off the handset, then reconnect the AC adaptor and turn on the handset.
  • Page 21 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Cross Reference: (*10) Battery Charge (P.8) (*11) Replacing the Batteries (P.9) (*12) Caller ID Display (P.18) (*13) Registering a Handset to a Base Unit (P.25) (*14) PIN Code (P.13) (*15) Erasing All Messages (P.27)

  • Page 22: Operations

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 8 OPERATIONS 8.1. Turning the Power On/Off 8.2. Setting the Time and Date Important: • Confirm that the AC adaptor is connected. • Ensure that is not flashing.

  • Page 23: Phonebook

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 8.4. Phonebook 8.4.1. Storing Phone Numbers and Names...
  • Page 24 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 8.4.2. Storing a Number from the Caller ID List into the Phonebook 8.4.3. Storing a Number from the Redial List into the Phonebook 8.4.4. Hot Key (: Quick Dial) Note: •...

  • Page 25: Registering A Handset To A Base Unit

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 8.5. Registering a Handset to a Base Unit...

  • Page 26: Selecting A Base Unit

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 8.6. Selecting a Base Unit...

  • Page 27: Answering System

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 8.7. Answering System 8.7.1. Listening to Messages 8.7.2. Erasing All Messages...
  • Page 28 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 8.7.3. Remote Operation Using a touch tone phone, you can call your phone number from outside and access the unit to listen to messages or change answering system settings. The unit’s voice guidance will prompt you to press certain dial keys to perform different operations.
  • Page 29 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF /...

  • Page 30: Disassembly Instructions

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 9 DISASSEMBLY INSTRUCTIONS 9.1. Base Unit Shown in Fig.- To Remove Remove Lower Cabinet Screws (2.6 × 12)..(A) × 2 Main P.C. Board Main P.C. Board...

  • Page 31: Handset

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 9.2. Handset Shown in Fig.- To Remove Remove Rear Cabinet Screws (2 × 10)..(B) × 2 Follow the procedure. Main P.C. Board Screw (2 × 8)....(C ) × 1 Screws (2 ×...

  • Page 32: Charger Unit

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 9.3. Charger Unit Shown in Fig.- To Remove Remove Lower Cabinet Screws (2.6 × 14)..(E) × 2 Main P.C. Board Tape and Solder Main P.C. Board...

  • Page 33: Assembly Instructions

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 10 ASSEMBLY INSTRUCTIONS 10.1. Warning When Constructing the Base Unit CHG terminal is properly fit in the cabinet. CHG terminal comes out of rib by pulling black lead wire when opening the cabinet and turning the PCB over.

  • Page 34: Processing Of Ringer/Charge Terminal Lead

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 10.2. Processing of Ringer/Charge Terminal Lead...

  • Page 35: Troubleshooting Guide

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 11 TROUBLESHOOTING GUIDE Flow Chart Cross Reference: Check Power (P.36) Bell Reception (P.42) Check Battery Charge (P.37) Check Link (P.38) Check Handset Transmission (P.40) Check Handset Reception (P.40) SIGNAL ROUTE (P.65)

  • Page 36: Check Power

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 11.1. Check Power 11.1.1. Base Unit Is the AC Adaptor inserted into AC outlet? (Check AC Adaptor’s specification.) Cross Reference Note: Power Supply Circuit (P.60) BBIC is IC8.

  • Page 37: Check Battery Charge

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 11.2. Check Battery Charge 11.2.1. Base Unit Cross Reference: Charge Circuit (P.63) 11.2.2. Handset Cross Reference: Note: Check Power (P.36) BBIC is IC1. Charge Circuit (P.63) 11.2.3. Charger Unit Cross Reference: Power Supply Circuit (P.64)

  • Page 38: Check Link

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 11.3. Check Link 11.3.1. Base Unit Cross Reference: Note: Power Supply Circuit (P.60) RF module is IC9. Adjustment (Base Unit) (P.46)
  • Page 39 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 11.3.2. Handset Cross Reference Note: Power Supply Circuit/Reset Circuit (P.63) RF module is IC3. Adjustment (Handset) (P.52)

  • Page 40: Check Handset Transmission

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 11.4. Check Handset Transmission Cross Reference: SIGNAL ROUTE (P.65) 11.5. Check Handset Reception Cross Reference: HOW TO CHECK THE HANDSET SPEAKER OR RECEIVER (P.56). SIGNAL ROUTE (P.65) 11.6. Check Caller ID Cross Reference: SIGNAL ROUTE (P.65)

  • Page 41: Tam Voice Prompt Problems

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 11.7. TAM Voice Prompt Problems Cross Reference: Check Link (P.38) Check Handset Reception (P.40) EEPROM LAYOUT (BASE UNIT) (P.71) TAM Voice Prompt Download (P.44)

  • Page 42: Bell Reception

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 11.8. Bell Reception 11.8.1. Base Unit Note: BBIC is IC8. 11.8.2. Handset Cross Reference: Note: Telephone Line Interface (P.61) BBIC is IC1. Check Link (P.38)

  • Page 43: Check Procedure (Base Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 12 CHECK PROCEDURE (BASE UNIT) 12.1. Preparation 12.1.1. Equipment Required • DECT tester: Rohde & Schwarz, CMD 60 is recommended. • Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).

  • Page 44: Tam Voice Prompt Download

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Command name Function Example InitBsPIN.bat Initial Base PIN to "0000" Type "initBsPIN" 12.3. TAM Voice Prompt Download 1. Connect the parallel cable from the VOICE PROMPT DOWN LOADER to SDR, SDX, INT, CS and SCLK.

  • Page 45: Check Procedure (Handset)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 13 CHECK PROCEDURE (HANDSET) 13.1. Preparation 13.1.1. Equipment Required • DECT tester: Rohde & Schwarz, CMD 60 is recommended. • Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).

  • Page 46: Adjustments (Base Unit And Charger Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 14 ADJUSTMENTS (BASE UNIT AND CHARGER UNIT) If your unit have below symptoms, adjust or confirm each item using remedy column from the table. Symptom Remedy* The base unit does not respond to a call from handset.
  • Page 47 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Items Procedure Check or Replace Parts (H)* Transmitted Power Remove the Antenna before starting steps from 1 to 4. IC6,IC4,L2, Confirmation 1. Configure the DECT tester (CMD60) as follows;...

  • Page 48: Adjustment Standard (Base Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Items Procedure Check or Replace Parts (N)* Receive Audio Check 1. Configure the DECT tester (CMD60) as follows; IC6,IC4,L2, and Adjustment C57,C61,C75, <Setting> C77,C78,C76, • Test mode: FP...
  • Page 49 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / C102 C101 B C E RLY1...
  • Page 50 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF /...

  • Page 51: Adjustment (Charger Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 14.3. Adjustment (Charger Unit) Items Adjustment Procedure Check or Point Replace Parts Charging Check 1. Connect Charge Contact 12Ω/2W resistor between charge+ and charge-. D1,R1,R2 2. Measure and confirm voltage across the resistor is 2.7V ± 0.2V.

  • Page 52: Adjustments (Handset)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 15 ADJUSTMENTS (HANDSET) If your unit have below symptoms, adjust or confirm each item using remedy column from the table. Symptom Remedy* The movement of Battery Low indicator is wrong.
  • Page 53 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Items Procedure Check or Replace Parts (I)* Transmitted Power Remove the Antenna before starting steps from 1 to 5. IC1,IC3,C54, Confirmation 1. Configure the DECT tester(CMD60) as follows;...
  • Page 54 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Items Procedure Check or Replace Parts (O)* Receive Audio Check 1. Configure the DECT tester (CMD60) as follows; IC1,R17,R20, D7,D6, <Setting> C12,C31,C115 • Test mode: PP • Mode: Nomal •...
  • Page 55 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / C204 C202 C207 C203 C201 C208 C209 R101 R103 R102 D102 C111 C116 R110 C105 C102 C103 C206 R108 C107 C104 C106 IC101 C108 R109 C109 R106 D101...

  • Page 56: Rf Specification

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 16 RF SPECIFICATION 16.1. Base Unit Item Value Refer to -. * Remarks TX Power More than 20 dBm ~ 25 dBm Adjustment (Base Unit) (H) Modulation 340 kHz/div ~ 402 kHz/div...

  • Page 57: Frequency Table (Mhz)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 18 FREQUENCY TABLE (MHz) BASE UNIT HANDSET Channel No Transmit Frequency Receive Frequency Transmit Frequency Receive Frequency 1897.344 1897.344 1897.344 1897.344 1895.616 1895.616 1895.616 1895.616 1893.888 1893.888 1893.888 1893.888...
  • Page 58 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF /...

  • Page 59: Block Diagram (Base Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 20 CIRCUIT OPERATION (BASE UNIT) 20.1. Outline Base Unit consists of the following ICs as shown in BLOCK DIAGRAM (BASE UNIT) (P.58). • DECT BBIC (Base Band IC): IC8 −...

  • Page 60: Power Supply Circuit

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 20.2. Power Supply Circuit The power is supplied to the DECT BBIC, RF Module, EEPROM, Relay Coil, LED and Charge Contact from AC Adaptor (+6V) as shown in Fig.101. The power supply is as follows;...

  • Page 61: Telephone Line Interface

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 20.3. Telephone Line Interface <Function> • Bell signal detection • Clip signal detection • ON/OFF hook circuit • Audio circuits Bell & Clip (: Calling Line Identification Presentation: Caller ID) signal detection: In the standby mode, Q2 is open to cut the DC loop current and decrease the ring load.

  • Page 62: Block Diagram (Handset)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 21 BLOCK DIAGRAM (HANDSET) SPEAKER IC101 Speech Burst RXDA Decoding Decoding EARPIECE TXDA Speech Burst Encoding Encoding Module RSSI ADPCM SYRI Codec Interface Analog SYEN Filter Front XTAL...

  • Page 63: Circuit Operation (Handset)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 22 CIRCUIT OPERATION (HANDSET) 22.1. Outline Handset consists of the following ICs as shown in BLOCK DIAGRAM (HANDSET) (P.62). • DECT BBIC (Base Band IC): IC1 − All data signals (forming/analyzing ACK or CMD signal) −...

  • Page 64: Circuit Operation (Charger Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 23 CIRCUIT OPERATION (CHARGER UNIT) 23.1. Power Supply Circuit The power supply is as shown.

  • Page 65: Signal Route

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 24 SIGNAL ROUTE...

  • Page 66: Cpu Data (Base Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 25 CPU DATA (BASE UNIT) 25.1. IC8 (BBIC) Descriptiojn Hi-z Remarks for Down Load for Down Load for Down Load SYRI Active Active VSSO XTAL X´tal LOAD X´tal...
  • Page 67 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Descriptiojn Hi-z Remarks P0.6 Make Break (NO USE) (NO USE) (NO USE) PULSE_CTRL Q7_ON Q7_OFF P0.1 for Flash Memory P0.0 No Key for Key PX.2 Write IC4 for Flash Memory PX.1...
  • Page 68 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Descriptiojn Hi-z Remarks BREF VSSA VDDA MFBN MFBP ADREFP ADREFN RSSI MPCINP RESETQ Normal Reset Note: I_PU; Internal Pull-Up, I_PD; Internal Pull-Down...

  • Page 69: Cpu Data (Handset)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 26 CPU DATA (HANDSET) 26.1. IC1 (BBIC) Description Hi-z Remarks LCD_SEGMENT Active LCD_COMMON Active LCD_COMMON Active LCD_COMMON Active LCD_COMMON Active LCD_COMMON Active LCD_COMMON Active PA_SW PA ON T/R SW...
  • Page 70 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Description Hi-z Remarks VDD for EEPROM I2DAT D.I/O Active I2CLK D.I/O Active MODE (NO USE) VBACK/P0.7 LCD_SEGMENT Active LCD_SEGMENT Active LCD_SEGMENT Active LCD_SEGMENT Active LCD_SEGMENT Active VDDLI LCD_SEGMENT...

  • Page 71: Eeprom Layout (Base Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 27 EEPROM LAYOUT (BASE UNIT) 27.1. Scope The purpose of this section is to describe the layout of the EEPROM (IC4) for the KX-TCD445 Base Unit. The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the base e.g.
  • Page 72 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Address Default Name Country Type Description Setting 09F2 HsRegInfo.EmcFlags Handset registration info - EMC flags 6..7: not used 0..5: handset 1..6 info, 1=known , 0=unknown 09F3 RingMode Ring mode. Modes used in KAMMA4 are 20h and 21h.
  • Page 73 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 27.3.5. TADTASK Address Default Name Country Type Description Setting 0F40 CountryCode Country code 0: Germany 1: Greece 2: Turkey 3: England 4: Switzerland 5: Poland 7: France 8: Denmark...
  • Page 74 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Address Default Name Country Type Description Setting 0F67 OptionData Each country data 0: 2 Way Beep ON/OFF 0:OFF/1:ON 1: 2 Way Beep interval 0:15s per 400ms/1:20s per 160ms...

  • Page 75: Eeprom Layout (Handset)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 28 EEPROM LAYOUT (HANDSET) 28.1. Scope The purpose of this section is to describe “the layout of the EEPROM (IC2) for the KX-A144 Handset”. The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the handset e.g.
  • Page 76 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Address Default Name Country Type Description Setting 0190-0194 RFPI_4 (Base 4) RFPI for registration 4 0195 SerClass_4 Service class for registration 4 0196 LAL_4 Location area level for registration 4...
  • Page 77 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Address Default Name Country Type Description Setting GR-offset for volumestep 2 Bit7 : AOG Bit6: AOG2 Bit5 - bit0: Gain-receive (values ranging from 0x00 to 0x30, each step representing 1 dB)

  • Page 78: How To Replace Flat Package Ic

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 29 HOW TO REPLACE FLAT PACKAGE IC 29.1. Preparation 29.3. Modification Procedure of Bridge • PbF (: Pb free) Solder • Soldering Iron 1. Add a small amount of solder to the bridged pins.

  • Page 79: Cabinet And Electrical Parts Location (Base Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 30 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)

  • Page 80: Cabinet And Electrical Parts Location (Handset)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 31 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET) Note: (*1) The rechargeable Ni-MH battery HHR-4EPT and Ni-Cd battery P-4NPT are available through sales route of Panasonic.
  • Page 81 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 32 CABINET AND ELECTRICAL PARTS LOCATION (CHARGER UNIT)

  • Page 82: Accessories And Packing Materials

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 33 ACCESSORIES AND PACKING MATERIALS 33.1. KX-TCD445BXS/BXT/BXF...

  • Page 83: Kx-A144Bxs/Bxt/Bxf

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 33.2. KX-A144BXS/BXT/BXF...

  • Page 84: Terminal Guide Of The Ics, Transistors And Diodes

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 34 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES 34.1. Base Unit 34.2. Handset 34.3. Charger Unit...

  • Page 85: Replacement Parts List

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 35 REPLACEMENT PARTS LIST Note: Ref. Part No. Part Name & Description Remarks 1. RTL (Retention Time Limited) PQKM10586WC CABINET BODY (for KX- ABS-HB Note: TCD445BXF) PQJT10203Z TERMINAL...
  • Page 86 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PQ4R18XJ000 ECUV1H103KBV 0.01 ERJ3GEYJ333 PQCUV1A105KB ERJ3GEYJ562 5.6K PQCUV1C104KB ERJ12YJ220 ECEA1HKS100 ERJ3GEYJ104 100K ECKD2H102KB2 0.001...

  • Page 87: Handset

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 35.2. Handset Ref. Part No. Part Name & Description Remarks MA8047 DIODE(SI) 35.2.1. Cabinet and Electrical Parts D101 B0JCDD000002 DIODE(SI) LED101 LNJ308G8JRA Ref. Part No. Part Name & Description...

  • Page 88: Charger Unit

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 35.4. Accessories and Packing Ref. Part No. Part Name & Description Remarks Materials ECUV1A105KBV ECUV1A105KBV ECUE1C100DCQ 35.4.1. KX-TCD445BXS/BXT/BXF ECUE1C100DCQ ECUE1H2R0CCQ Ref. Part No. Part Name & Description Remarks...

  • Page 89: For Schematic Diagram

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 36 FOR SCHEMATIC DIAGRAM 36.1. Base Unit (SCHEMATIC DIAGRAM (BASE UNIT)) Notes: 1. DC voltage measurements are taken with voltmeter from the negative voltage line. 2. This schematic diagram may be modified at any time with the development of new technology.

  • Page 90: Schematic Diagram (Base Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 37 SCHEMATIC DIAGRAM (BASE UNIT) +60V:DC ON-HOOK LINE VOLTAGE 60V DC +10V:DC OFF-HOOK JMP1 ON-HOOK: 0V OFF-HOOK: about DC 9.8V JMP9 100K JMP2 JMP3 2.2K JMP4 0V: ON-HOOK +0.7V DC: OFF-HOOK...
  • Page 91 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / ON-HOOK: 0V OFF-HOOK: about DC 3.9V J22P 5.6K K1.0 +2.8V 100K 470K CLIP_STATE +4.0V D10P TP201 'Ringer +' TP202 'Ringer -' D10P D10P D10P +2.8V 2.8V DC TP103...

  • Page 92: Schematic Diagram (Handset)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 38 SCHEMATIC DIAGRAM (HANDSET) 3.9V DC TP4V 47uH BATTERY+ BATTERY- TP20 3.3K 10uH 2.65V DC CHARGE+ 1 A0 CHARGE- 2 A1 TP21 3 A2 4 GND 10uH 'BATT'...
  • Page 93 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / C102 K2200P C101 R106 R108 TP101 C105 R107 D101 K0.1 J101 SPEAKER IC101 TP102 RECIEVER K0.1 2.2K TP11 K0.1 (10) (11) (12) (13) TP17 'POWER' TP16 (14) A201 2.7nH...

  • Page 94: Schematic Diagram (Charger Unit)

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 39 SCHEMATIC DIAGRAM (CHARGER UNIT) DC_PLUG Charge_plus Charge_minus pinL SCHEMATIC DIAGRAM (CHARGER UNIT)
  • Page 95 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / C102 C101 B C E...
  • Page 96 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF /...
  • Page 97 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / C204 C202 C203 C207 C201 C208 C209 R101 R103 R102 D102 C111 C116 R110 C105 C102 C103 C206 R108 C107 C104 C106 IC101 C108 R109 C109 D101 R106...
  • Page 98 KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / LED101 LED102 LED103...

  • Page 99: Component View

    KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF / 42 CIRCUIT BOARD (CHARGER UNIT) 42.1. Component View CIRCUIT BOARD (CHARGER UNIT) Component View 42.2. Flow Solder Side View CIRCUIT BOARD (CHARGER UNIT) Flow Solder Side View KXTCD445BXS...

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