Table of Contents

Advertisement

Telephone Equipment
KX-TCD440HGS
KX-TCD440HGT
KX-A144EXS-1
KX-A144EXS
KX-A144EXT-1
KX-A144EXT
Digital Cordless Phone
New Silver Version
Titanium Black Version
(for Hungary)
© 2004 Panasonic Communications Co., Ltd. All
rights
reserved.
distribution is a violation of law.
11ORDER NO. KM40406454C2
Unauthorized
copying
and

Advertisement

Table of Contents
loading

Summary of Contents for Panasonic KX-A144 Series

  • Page 1 11ORDER NO. KM40406454C2 Telephone Equipment KX-TCD440HGS KX-TCD440HGT KX-A144EXS-1 KX-A144EXS KX-A144EXT-1 KX-A144EXT Digital Cordless Phone New Silver Version Titanium Black Version (for Hungary) © 2004 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.
  • Page 2: Table Of Contents

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Note: Because CONTENTS 5 to 9 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. CONTENTS Page Page...
  • Page 3 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 19 FREQUENCY TABLE (MHz) 32 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET) 73 20 BLOCK DIAGRAM (BASE UNIT) 33 CABINET AND ELECTRICAL PARTS LOCATION (CHARGER 21 CIRCUIT OPERATION (BASE UNIT) UNIT) 21.1.
  • Page 4: About Lead Free Solder (Pbf: Pb Free)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 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-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 1.2. How to recognize that Pb Free solder is used 1.2.1. Base Unit PCB Marked (Component View) J101 J103 J104 J102 J105 TP84 TP187 TP82 CHARGE CHARGE TP97 TP202 RINGER TP50 RINGER...
  • Page 6 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 1.2.2. Handset PCB Marked (Component View) TALK BOOK LED108 LEFT LED106 LED107 DOWN REDIAL RIGHT LED105 LED104 PROG POWER Marked (Flow Solder Side View) Note: The location of the “PbF” mark is subject to change without notice. 1.2.3.
  • Page 7: For Service Technicians

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 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. 2.
  • Page 8: Battery

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 5 BATTERY 5.1. Battery Installation 1. Insert the batteries negative (-) terminal first. 2. Close the battery cover. Note: · Use only rechargeable P03P (Ni-MH)/P03H (Ni-Cd) batteries. 5.2. Battery Charge Place the handset on the base unit for about 7 hours before initial use.
  • Page 9: Battery Life

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 5.3. 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-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 6 LOCATION OF CONTROLS 6.1. Base Unit 6.2. Handset...
  • Page 11: Settings

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 7 SETTINGS Important information General · Use only the power supply included with this products. · Do not connect the AC adaptor to any AC outlet other than a standard 220 — 240 V AC outlet. ·...
  • Page 12: Ringer Volume

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 7.1.2. 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 PQLV200CEZ. 7.2.
  • Page 13: Pin Code

    PIN Code Important: · If you changed the PIN, please write down your new PIN as the unit will not reveal the PIN to you. If you forget your PIN, consult your nearest Panasonic service centre. 7.3.1. Base Unit For Service Hint: *: If the current 4-digit PIN is forgotten, press and you will be able to enter new PIN.
  • Page 14: Reset

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 7.4. Reset 7.4.1. Base Unit Note: · The emergency number setting will not be reset. Base Unit Initial Settings Function Initial Setting Remarks (selectable options) Base Unit Ringer Volume 1 to 3, OFF Ringer Mode All Handsets...
  • Page 15: Key Lock

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 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 20 patterns Handset Internal Ringer Pattern 20 patterns...
  • Page 16: Setting Call Restriction

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 7.8. 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-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 7.11. 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”. 7.12.
  • Page 18: Display

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 8 DISPLAY 8.1. 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. 8.2.
  • Page 19: Before Requesting Help (Troubleshooting)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 8.3. 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 20 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Cross reference: (*1) Registering a Handset to a Base Unit (P.24). (*2) Setting Call BAR (P.16). (*3) Setting Call Restriction (P.16). (*4) Key Lock (P.15). (*5) Setting Dialling Mode (tone/pulse) (P.17). (*6) Ringer Volume (P.12).
  • Page 21: Operations

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 9 OPERATIONS 9.1. Turning the Power On/Off 9.2. Setting the Time and Date Note: · If a power failure occurs, set the time and date again. 9.3. Redialling 9.3.1. Making a Call Using the Redial List The last 10 phone numbers dialled are stored in the redial list.
  • Page 22: Phonebook

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 9.4. Phonebook 9.4.1. Storing Phone Numbers and Names Up to 20 phone numbers can be stored in the phonebook for quick access.
  • Page 23 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 9.4.2. Storing a Number from the Caller ID List into the Phonebook 9.4.3. Storing a Number from the Redial List into the Phonebook 9.4.4. Hot Key (Quick Dial) Note: ·...
  • Page 24: Registering A Handset To A Base Unit

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 9.5. Registering a Handset to a Base Unit 9.5.1. Cancelling a Handset...
  • Page 25: Selecting A Base Unit

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 9.5.2. Cancelling a Base Unit Note: To register the handset to another base unit or to the same base unit again, see manual registration. 9.6. Selecting a Base Unit...
  • Page 26: Disassembly Instructions

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 10 DISASSEMBLY INSTRUCTIONS 10.1. 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 27: Handset

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 10.2. Handset Shown in Fig.- To Remove Remove Rear Cabinet Screws (2 × 10)..(B) × 2 Rear Cabinet Follow the procedure. Main P.C. Board Screw (2 × 8)....(C ) × 1 Screws (2 ×...
  • Page 28: Charger Unit

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 10.3. 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 29: Assembly Instructions

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 11 ASSEMBLY INSTRUCTIONS 11.1. 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 30: Processing Of Ringer/Charge Terminal Lead

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 11.2. Processing of Ringer/Charge Terminal Lead...
  • Page 31: Troubleshooting Guide

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 12 TROUBLESHOOTING GUIDE Flow Chart Cross Reference: Check Power (P.32) Bell Reception (P.37) Check Battery Charge (P.33) Check Link (P.34) Check Handset Transmission (P.36) Check Handset Reception (P.36) SIGNAL ROUTE (P.60)
  • Page 32: Check Power

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 12.1. Check Power 12.1.1. Base Unit Is the AC Adaptor inserted into AC outlet? (Check AC Adaptor’s specification.) Cross Reference Note: Power Supply Circuit (P.55) BBIC is IC2. 12.1.2. Handset Cross Reference Note: Power Supply Circuit/Reset Circuit (P.58)
  • Page 33: Check Battery Charge

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 12.2. Check Battery Charge 12.2.1. Base Unit Cross Reference: Charge Circuit (P.58) 12.2.2. Handset Cross Reference: Note: Check Power (P.32) BBIC is IC1. Charge Circuit (P.58) 12.2.3. Charger Unit Cross Reference: Power Supply Circuit (P.59)
  • Page 34: Check Link

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 12.3. Check Link 12.3.1. Base Unit Cross Reference: Note: Power Supply Circuit (P.55) RF module is IC3. Adjustment (Base Unit) (P.40)
  • Page 35 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 12.3.2. Handset Cross Reference Note: Power Supply Circuit/Reset Circuit (P.58) RF module is IC3. Adjustment (Handset) (P.47)
  • Page 36: Check Handset Transmission

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 12.4. Check Handset Transmission Cross Reference: SIGNAL ROUTE (P.60) 12.5. Check Handset Reception Cross Reference: HOW TO CHECK THE HANDSET SPEAKER OR RECEIVER (P.51). SIGNAL ROUTE (P.60) 12.6. Check Caller ID Cross Reference: SIGNAL ROUTE (P.60)
  • Page 37: Bell Reception

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 12.7. Bell Reception 12.7.1. Base Unit Note: BBIC is IC2. 12.7.2. Handset Cross Reference: Note: Telephone Line Interface (P.56) BBIC is IC1. Check Link (P.34)
  • Page 38: Check Procedure (Base Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 13 CHECK PROCEDURE (BASE UNIT) 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 1 Hz (precision; ±4 ppm). Hewlett Packard, 53131 A is recommended.
  • Page 39: Check Procedure (Handset)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 14 CHECK PROCEDURE (HANDSET) 14.1. Preparation 14.1.1. Equipment Required · DECT tester: Rohde & Schwarz, CMD 60 is recommended. · Frequency counter: it must be precise to be able to measure 1 Hz (precision; ± 4 ppm). Hewlett Packard, 53131 A is recommended.
  • Page 40: Adjustments (Base Unit And Charger Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 15 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. Make adjustments in item (A)~(F), (I)~(M) The base unit does not transmit or the transmit frequency is off.
  • Page 41 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Items Procedure Check or Replace Parts (G)* DTMF Generator 1. Connect J1 (Telephone Socket) to DTMF tester. IC2,R32,C22, Confirmation R23,C80, 2. Execute the command “hookoff” and “dtmf_up”. C14,C13,Q6, R22,R21, 3.
  • Page 42 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Items Procedure Check or Replace Parts (M)* RSSI Level Follow steps 1 to 3 of (H) above. IC2,IC3,L1, Confirmation 4. Set DECT tester power to -70 dBm. C43,C78, C75,C69,C48, 5.
  • Page 43 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Items Procedure Check or Replace Parts 1. Connect Charge Contact 12 Ω/2 W resistor between charge+ and charge-. Charging Check D4,R43,R44 2. Measure and confirm voltage across the resistor is 2.3 V ± 0.2 V. Note: After the measuring, sock up the solder of TP.
  • Page 44: Adjustment Standard (Base Unit)

    15.2. Adjustment Standard (Base Unit) When connecting the Simulator Equipment for checking, please refer to below. 15.2.1. Component View DECT Tester CMD60 (H) (I) (J) (K) (L) (M) AF VOLT METER 6.3V A201 JMP2 47µF JMP6 JMP5 150Ω JMP7 JMP8 RLY1 Dummy Handset...
  • Page 45 15.2.2. Flow Solder Side View (D) (E) (F) (G) (H) (N) (O) Digital Digital Volt Meter Volt Meter VBACK TP187 TP84 J101 J103 J104 J102 J105 TP187 TP82 CHARGE CHARGE+ CHARGE Digital Volt Meter TP97 TP202 RINGER TP50 Frequency Counter RINGER TP201 TP45...
  • Page 50: Adjustment Standard (Handset)

    16.2. Adjustment Standard (Handset) When connecting the Simulator Equipment for checking, please refer to below. AF VOLT METER LOOP Simulator Oscilloscope (I) (J) (K) (L) (M) (F) (G) (N) (O) (P) Power Key DC POWER Dummy Base DECT tester 2.30 - 2.60V Unit Volt Meter CMD60...
  • Page 51: Rf Specification

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 17 RF SPECIFICATION 17.1. 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 Adjustment (Base Unit) (I) Data type: Fig31 Frequency Offset...
  • Page 52: Frequency Table (Mhz)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 19 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 1892.160 1892.160 1892.160...
  • Page 53: Block Diagram (Base Unit)

    20 BLOCK DIAGRAM (BASE UNIT) ANT1 to Tel_Line ANT2 TXAF TXDA Burst Building Bridge Hook Speech Encoding Audio RXAF RXDA Rect Switch Burst Decoding Speech Decoding Analog ADPCM RSSI Front End Codec Filter SYRI RINGER Interface SYEN HOOK RF Module DTXAF BBIC DTXAF...
  • Page 54: Circuit Operation (Base Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 21 CIRCUIT OPERATION (BASE UNIT) 21.1. Outline Base Unit consists of the following ICs as shown in BLOCK DIAGRAM (BASE UNIT) (P.53). · DECT BBIC (Base Band IC): IC2 −...
  • Page 55: Power Supply Circuit

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 21.2. Power Supply Circuit The power is supplied to the DECT BBIC, RF Module, EEPROM, Relay Coil, LED and Charge Contact from AC Adaptor (+6 V) as shown in Fig.101. The power supply is as follows; ·...
  • Page 56: Telephone Line Interface

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 21.3. 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 57: Block Diagram (Handset)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 22 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 CHARGE CHARGE CHARGE 10.368...
  • Page 58: Circuit Operation (Handset)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 23 CIRCUIT OPERATION (HANDSET) 23.1. Outline Handset consists of the following ICs as shown in BLOCK DIAGRAM (HANDSET) (P.57). · DECT BBIC (Base Band IC): IC1 − − − − All data signals (forming/analyzing ACK or CMD signal) −...
  • Page 59: Circuit Operation (Charger Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 24 CIRCUIT OPERATION (CHARGER UNIT) 24.1. Power Supply Circuit The power supply is as shown.
  • Page 60: Signal Route

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 25 SIGNAL ROUTE...
  • Page 61: Cpu Data (Base Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 26 CPU DATA (BASE UNIT) 26.1. IC2 (BBIC) Description Hi-z Remarks PA_Driver_Amp PA_ON PA_OFF TX/RX SW RX_Data Data Data PLL_Strobe Latch Normal PLL_Data Active Active PLL_Clk Active Active TX_Data Active Active (NO USE)
  • Page 62 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Description Hi-z Remarks ANT1 ANT1_ON ANT1_OFF ANT2 ANT2_ON ANT2_OFF Note: I_PU; Internal Pull-Up, I_PD; Internal Pull-Down...
  • Page 63: Cpu Data (Handset)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 27 CPU DATA (HANDSET) 27.1. 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 Transmit RX_DATA Active...
  • Page 64 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 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 Active LCD_SEGMENT Active LCD_SEGMENT...
  • Page 65: Eeprom Layout (Base Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 28 EEPROM LAYOUT (BASE UNIT) 28.1. Scope The purpose of this section is to describe the layout of the EEPROM (IC1) for the KX-TCD440 Base Unit. The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the base e.g.
  • Page 66 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 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. 7..5: Mode (001=group) 4: Not used 3..0: Id (001= id of first group)
  • Page 67 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Address Default Name Country Type Description Setting 0F4C Config BsUiTask configuration (LSB) Bits 1=enable 0=disable 0: FlashTime1Enabled, enabled 1: FlashTime2Enabled, enabled 2: FlashTime3Enabled, enabled 3: KeyClicksEnable, disabled 4: ARSCarrierMenuEnabled, enabled 5: ARSIntDeletionMenuEnabled, enabled 6: ARSMultipleCarrierMenuEnabled, enabled 7: ARSMultipleAreaCodeMenuEnabled, enabled...
  • Page 68: Eeprom Layout (Handset)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 29 EEPROM LAYOUT (HANDSET) 29.1. Scope The purpose of this section is to describe the layout of the EEPROM (IC2) for the KX-A144-1/A144 Handset. The EEPROM contains hardware, software, and user specific parameters. Some parameters are set during production of the handset e.g.
  • Page 69 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 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 0197 IPUI_LEN_4 IPUI length for registration 4...
  • Page 70 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 29.3.3. Volume Settings Address Default Name Country Type Description Setting EESpPhVolume Volume of the speakerphone RingVolumeLevel1 Setting for Ringer Volume 1 (lowest) RingVolumeLevel2 Setting for Ringer Volume 2: RingVolumeLevel3 Setting for Ringer Volume 3: RingVolumeLevel4 Setting for Ringer Volume 4:...
  • Page 71: How To Replace Flat Package Ic

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 30 HOW TO REPLACE FLAT PACKAGE IC 30.1. Preparation 30.3. Modification Procedure of Bridge · PbF (: Pb free) Solder · Soldering Iron 1. Add a small amount of solder to the bridged pins. Tip Temperature of 700°F ±...
  • Page 72: Cabinet And Electrical Parts Location (Base Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 31 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)
  • Page 73: Cabinet And Electrical Parts Location (Handset)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 32 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET) Note: (*1) The rechargeable Ni-MH battery P03P and Ni-Cd battery P03H are available through sales route of Panasonic.
  • Page 74 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 33 CABINET AND ELECTRICAL PARTS LOCATION (CHARGER UNIT)
  • Page 75: Accessories And Packing Materials

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 34 ACCESSORIES AND PACKING MATERIALS 34.1. KX-TCD440HGS/HGT...
  • Page 76: Kx-A144Exs/Ext

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 34.2. KX-A144EXS/EXT...
  • Page 77: Terminal Guide Of The Ics, Transistors And Diodes

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 35 TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES 35.1. Base Unit 35.2. Handset 35.3. Charger Unit...
  • Page 78: Replacement Parts List

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 36 REPLACEMENT PARTS LIST 1. RTL (Retention Time Limited) Ref. Part No. Part Name & Description Remarks Note: PQSA10132Z ANTENNA, SUB The marking (RTL) indicates that the Retention Time is PQYF10560Z9 CABINET COVER...
  • Page 79: Handset

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks ERJ3GEYJ101 ECUV1H060DCV ERJ3GEYJ101 ECQE2E105KZ ERJ3GEYJ560 ECUV1H100DCV ERJ3GEYJ330 ECUV1H102KBV 0.001 ERJ3GEYJ101 ECUV1H101JCV 100P ERJ3GEYJ221 ECUV1H0R5CCV 0.5P ERJ1WYJ330...
  • Page 80: Charger Unit

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks PCB100 PQWP1D440HGR MAIN P.C.BOARD ASS´Y (RTL) ECUV1H1R0CCV (for KX-A144EXS-1) (for ECUV1H180JCV A144EXT-1) ECUE1A104KBQ PCB100 PQWP1D144EXR MAIN...
  • Page 81: Accessories And Packing Materials

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 36.3.2. Main P.C.Board Parts Ref. Part No. Part Name & Description Remarks PCB200 PQWPA142ESCH MAIN P.C.BOARD ASS´Y (RTL) (DIODE) B0JAME000085 DIODE(SI) (JACK) PQJJ1B4Y JACK (RESISTORS) ERJ1WYJ220 ERJ1WYJ270 36.4. Accessories and Packing Materials 36.4.1.
  • Page 82: Memo

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 36.6. Memo...
  • Page 83: For Schematic Diagram

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 37 FOR SCHEMATIC DIAGRAM 37.1. 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. 37.2.
  • Page 84: Schematic Diagram (Base Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 38 SCHEMATIC DIAGRAM (BASE UNIT) +60V DC ON-HOOK +10V DC OFF-HOOK TP39 LINE VOLTAGE 60V DC JMP1 0V DC ON-HOOK +0.7V DC OFF-HOOK TP45 100K TP40 JMP2 +2.65V JMP3 2.2K JMP4 OPTION4...
  • Page 85 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 0V DC ON-HOOK +9.8V DC OFF-HOOK 0V DC ON-HOOK TP50 +3.9V DC OFF-HOOK 3.9K 100K K1.0 RX-AF D10P A201 A202 TX-AF +2.65V DC +2.65V TP187 +2.65V TX-DATA TP188 33 PX.0 VSSO 34 PX.1 VDDPM...
  • Page 86: Schematic Diagram (Handset)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 39 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' TP12 LCD BACKLIGHT 'SDA' 'SCL'...
  • Page 87 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 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 VCC_PA (15) PAON...
  • Page 88: Schematic Diagram (Charger Unit)

    KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 40 SCHEMATIC DIAGRAM (CHARGER UNIT) DC_PLUG Charge_plus Charge_minus pinL SCHEMATIC DIAGRAM (CHARGER UNIT)
  • Page 89: Circuit Board (Base Unit)

    41 CIRCUIT BOARD (BASE UNIT) 41.1. Component View (BBIC: 18 RESET 10.368MHz) (BBIC: 14) (5.5V) (4.0V) A201 JMP2 JMP6 JMP5 JMP7 JMP8 RLY1 JMP4 JMP3 JMP1 (4.0V) A202 B C E RF VOLTAGE Bell Ringer Bell Power Q8 Collector Bell Bell (BBIC: 44) Supply (4V)
  • Page 90: Flow Solder Side View

    41.2. Flow Solder Side View RF clock (BBIC: 11 10.368MHz) J101 J103 J104 J102 J105 TP84 TP187 TP82 CHARGE CHARGE TP97 TP202 RINGER TP50 RINGER TP201 TP45 TP188 TP91 TP89 TP39 TP90 TP101 Q9 input Q9 output (5.5V) (4V) KX-TCD440HGS/HGT CIRCUIT BOARD (BASE UNIT) Flow Solder Side View...
  • Page 91: Circuit Board (Handset)

    42 CIRCUIT BOARD (HANDSET) 42.1. Component View SP+ SP- (BBIC: 27) TP BATT Battery (+) (+2.65V) (to Speaker) Q101 TP101 C110 R107 TP102 C115 Q103 MCLK Battery (-) TP4V RF Clock REV+ REV- (BBIC: 23 10.368MHz) (to Receiver) KX-A144EXS/EXT-1/A144EXS/EXT CIRCUIT BOARD (HANDSET) Component View...
  • Page 92 42.2. Flow Solder Side View TALK BOOK LED108 LEFT LED106 LED107 DOWN REDIAL RIGHT LED105 LED104 PROG POWER KX-A144EXS/EXT-1/A144EXS/EXT CIRCUIT BOARD (HANDSET) Flow Solder Side View...
  • Page 93 KX-TCD440HGS / KX-TCD440HGT / KX-A144EXS-1 / KX-A144EXS / KX-A144EXT-1 / KX-A144EXT 43 CIRCUIT BOARD (CHARGER UNIT) 43.1. Component View CIRCUIT BOARD (CHARGER UNIT) Component View 43.2. Flow Solder Side View CIRCUIT BOARD (CHARGER UNIT) Flow Solder Side View A.I. KXTCD440HGS KXTCD440HGT KXA144EXS-1 KXA144EXS...

Table of Contents