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Panasonic KX-TCD540NZM Service Manual
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Panasonic KX-TCD540NZM Service Manual

Panasonic KX-TCD540NZM Service Manual

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ORDER NO. KM40311283C3
Telephone Equipment
KX-TCD540NZM
KX-TCA154AZM
Digital Cordless Answering System
Metallic Grey Version
(for New Zealand)
1

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Summary of Contents for Panasonic KX-TCD540NZM

  • Page 1 ORDER NO. KM40311283C3 Telephone Equipment KX-TCD540NZM KX-TCA154AZM Digital Cordless Answering System Metallic Grey Version (for New Zealand)
  • Page 2 SPECIFICATIONS...

  • Page 3: About Lead Free Solder (Pbf: Pb Free)

    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. We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn), Silver (Ag), and Copper (Cu).

  • Page 4: Suggested Pbf Solder

    This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair work we suggest using the same type of solder although, with some precautions, standard Pb solder can also be used. Caution PbF solder has a melting point that is 50°F ~70°F (30°C ~ 40°C) higher than Pb solder.

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

    There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper (Sn+Ag+Cu), you can also use Tin and Copper (Sn+Cu) or Tin, Zinc, and Bismuth (Sn+Zn+Bi). Please check the manufac turer’s specific instructions for the melting points of their products and any precautions for using their product with other materials.

  • Page 6: For Service Technicians

    (Flow Solder Side View) Note: The location of the “PbF“ mark is subject to change without notice. 1.2.2. Cordless Handset PCB (Component View) (Flow Solder Side View) Note: The location of the “PbF“ mark is subject to change without notice. 1.2.3.

  • Page 7: Battery Installation

    4. Do not touch IC or LSI pins with bare fingers. 3. CAUTION Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommendenced by the manufacturer. Dispose of used batteries according to the manufacture’s Instructions. 4.
  • Page 8 At the time of shipment, the batteries are not charged. To charge, place the cordless handset on the charger. Please charge the batteries for about 7 hours before initial use. During charging, the charge LED will light as shown below. The cordless handset, even when switched off, will be turned on automatically when it is placed on the charger.

  • Page 9: Battery Information

    ) indication: If Antenna Pict is indicated, charge time is about 7 hours. However, if Antenna Pict is flashing, charge time becomes long. 4.3. Battery Information After your Panasonic battery is fully charged: Ni-MH Batteries (typical 700 mAh) Operation Operating Time While in use (TALK) 10 hrs approx.

  • Page 10: Replacing The Batteries

    Open the battery cover by pressing down firmly on the notch and sliding it as indicated by the arrow below. Replace both batteries and close the cover. Charge the cordless handset for about 7 hours. Please order Panasonic HHR-4EPT (Ni-MH) or P-4NPT (Ni-Cd) batteries. Note for Service: When Ni-Cd batteies are littled with the...

  • Page 11: Location Of Controls

    setting in icon might disappear and stop charging even if the handset is on the cradle for avoiding overcharge. 5. LOCATION OF CONTROLS 5.1. Base Unit...

  • Page 13: Cordless Handset

    5.2. Cordless Handset...

  • Page 15: Charger Unit

    5.3. Charger Unit 5.4. Icons above SOFT KEYS 5.4.1. Base Unit...
  • Page 16 5.4.2. Cordless Handset 6. SETTINGS For your Information...
  • Page 17 Throughout these Service Manuals, Cordless Handset and Base Unit are used to indicate with which unit an operation can be performed. Cordless Handset: Perform with cordless handset. Base Unit: Perform with the base unit. Cordless Handset/Base Unit: Perform with the cordless handset or base unit separately.
  • Page 18 The AC adaptor must remain connected at all times (It is normal for the adaptor to feel warm during use).
  • Page 19 Never install telephone wiring during a lightning storm. USE ONLY WITH Panasonic AC ADAPTOR PQLV19ALZ. 6.1.2. Charger Unit The batteries must be fully charged before initial use of the cordless handset. The AC adaptor must remain connected at all times (It is normal for the adaptor to feel warm during use).

  • Page 20: Symbols Used For Operations

    6.2. Symbols Used for Operations 6.2.1. Base Unit/Cordless Handset 6.2.2. Base Unit...
  • Page 21 6.2.3. Cordless Handset...

  • Page 22: Setting The Ringer Volume

    6.3. Setting the Ringer Volume 6.3.1. Base Unit...

  • Page 23: Settings Menu Chart

    6.3.2. Cordless Handset 6.4. Settings Menu Chart 6.4.1. Base Unit...
  • Page 24 6.4.2. Cordless Handset...
  • Page 25 6.5. PIN Code 6.5.1. Base Unit...
  • Page 26 For Service Hint: * : If the current 4-digit Base Unit PIN is forgotten, follow the procedures below. 1. If Base Unit and Handset are not linked with, first, follow the steps in Cordless Handset Registration to a Base Unit 2.

  • Page 27: Reset The Settings

    For Service Hint: * : If the current 4-digit PIN is forgotten, press and you will be able to enter new Handset PIN. This password is useful whether Base Unit and Handset are linked with or not. 6.6. Reset the Settings 6.6.1.
  • Page 28 Initial Settings for Base Unit Function Initial Setting Remarks (selectable options) 4-Digit Base Unit PIN 0000 Base Unit External Ringer Pattern 1 to 6 Base Unit Receiver Volume Medium High / Low / Medium / OFF Call Bar Mode ON / OFF Display Language English Redial Memory...
  • Page 29 6.6.2. Cordless Handset You can reset all of the handset settings to their initial settings. Initial Settings for Cordless Handset Functions Initial Settings Remarks (selectable options) Display Language English 4-Digit Handset PIN 0000 Phonebook List Remain Voice Tag Remain Select Base Automatic Base Unit Selection Redial Memory Delete All...

  • Page 30: Recall Feature

    6.7. Key Lock Note for Service: The key lock is cancelled if the handset is turned off. 6.8. Recall Feature 6.9. Dialling Pause for PBX line/long distance service users A dialling pause can be entered when a pause in the dialling of a phone number is necessary when using a PBX or accessing a long distance service.

  • Page 31: Call Restriction

    6.9.2. Cordless Handset 6.10. Call Restriction You can restrict selected cordless handset(s) or the base unit from dialling selected phone numbers. You can assign up to 6 call restriction numbers (up to 8 digits). If you dial a restricted number, the call does not connect and the restricted number flashes.
  • Page 32 NOTE: When you put a first digit on step 9, it must overwrite the current displayed numbers. We recommend you to write down the restricted phone number you entered. 6.11. Call BAR On/Off (Call Prohibition On/Off) When this feature is set to ON, outgoing calls cannot be made. Intercom calls and calls to numbers assigned as emergency numbers can be made.

  • Page 33: Selecting The Display Language

    6.11.2. Cordless Handset 6.12. Selecting the Display Language You can select one of 19 languages on the cordless handset and the base unit separately. The factory preset is English. 6.12.1. Base Unit...
  • Page 34 6.12.2. Cordless Handset Note for Service:...

  • Page 35: Display Icons

    7. DISPLAY 7.1. Display Icons 7.1.1. Base Unit 7.1.2. Cordless Handset...
  • Page 36 For Service Hint: icon will be displayed if the unit took a signal from Telephone Company as a Voice Message signal.

  • Page 37: Caller Id Service

    In that case, press the left button of the Navigator key for a few seconds. 7.2. Caller ID Service 7.3. Before Requesting Help (Troubleshooting) If you experience any problems with the normal use of your apparatus, you should unplug it from the telephone outlet and connect a known working telephone in its place.
  • Page 38 Turn the power OFF then ON (Handset)/Disconnect then connect the AC adaptor (Base Unit).
  • Page 40 Answering System Cross Reference: Power ON/OFF Call BAR On/Off (Call Prohibition On/Off) Call Restriction Key Lock PIN Code ANSWERING SYSTEM Note: *1: It will take time for both Base Unit and Handset to be linked with.
  • Page 41 8. OPERATIONS 8.1. Power ON/OFF 8.2. Setting the Date and Time...
  • Page 42 8.3. Redialling The last 10 numbers dialled on the cordless handset and the base unit are automatically stored in the redial list separately. 8.3.1. Dialling with the Redial List 8.3.1.1. Base Unit...
  • Page 43 8.3.1.2. Cordless Handset 8.3.2. Dialling the Last Number Dialled 8.3.2.1. Base Unit 8.3.2.2. Cordless Handset...
  • Page 44 8.4. Phonebook You can store up to 200 caller information in the handset phonebook and up to 20 caller information in the base unit phonebook. If you subscribed to Caller ID and you received a call from the same phone number you stored with name in each phonebook, the display will show the caller’s name.
  • Page 45 8.4.1. Storing Caller Information in the Phonebook 8.4.1.1. Base Unit Phonebook...
  • Page 46 8.4.1.2. Cordless Handset Phonebook...
  • Page 47 8.4.2. Entering Names/Characters...
  • Page 48 Cross Reference:...
  • Page 49 Phonebook Character Table 8.4.3. Phonebook Character Table 8.4.4. Editing Caller Information...
  • Page 51 8.4.5. Storing the Number in the Handset Phonebook...
  • Page 53 8.4.6. Hot Keys (: Speed Dial)
  • Page 55 8.4.7. Voice Search...
  • Page 58 8.4.8. Phonebook Copy You can copy handset phonebook information between cordless handsets registered to the same base unit. The handset phonebook copy must be performed while in intercom mode. To exit the operation, press at any time.
  • Page 60 8.5. Cordless Handset Registration to a Base Unit...
  • Page 61 Note for Service: At step 7, enter . Finally Handset will be linked to Base Unit.

  • Page 62: Base Unit Selection

    8.6. Base Unit Selection...

  • Page 63: Answering System On/Off

    9. ANSWERING SYSTEM 9.1. Answering System ON/OFF When you set the answering system ON, a caller can leave her/his messages. 9.1.1. Base Unit...

  • Page 64: Greeting Message

    9.1.2. Cordless Handset 9.2. Greeting Message 9.3. Incoming/Memo Messages...
  • Page 65 9.3.1. Base Unit 9.3.2. Cordless Handset...
  • Page 66 9.4. Answering System Direct Command...
  • Page 68 9.5. Remote Operation from a Touch Tone Phone 10. DISASSEMBLY INSTRUCTIONS 10.1. Base Unit...

  • Page 70: Cordless Handset

    Shown in Fig.- To Remove Remove Lower Cabinet Screws (2.6 × 14)..(A) × 5 Main P.C. Board Tape and Solder Main P.C. Board Operational P.C. Board Screws (2.6 × 8)..(B) × 10 Operational P.C. Board 10.2. Cordless Handset...

  • Page 72: Charger Unit

    Shown in Fig.- To Remove Remove Rear Cabinet Screws (2 × 10)..(C) × 2 Follow the procedure. Main P.C. Board Screw (2 × 8)....(D) × 1 Screws (2 × 8).....(E) × 2 Main P.C. Board 10.3. Charger Unit Shown in Fig.- To Remove Remove Lower Cabinet...
  • Page 73 Cross Reference: Check Power Bell Reception Check Battery Charge...

  • Page 74: Check Power

    Check Link Check Cordless Handset Transmission Check Cordless Handset Reception Check Curl Cord Handset Transmission Check Curl Cord Handset Reception Check DTMF Dial Check TAM Operation 11.1. Check Power 11.1.1. Base Unit Is the AC Adaptor inserted into AC outlet? (Check AC Adaptor’s specification.)
  • Page 75 Cross Reference Power Supply Circuit Note: BBIC is IC2. 11.1.2. Cordless Handset...

  • Page 76: Check Battery Charge

    Cross Reference Power Supply Circuit/Reset Circuit Note: BBIC is IC1. 11.2. Check Battery Charge 11.2.1. Cordless Handset...

  • Page 77: Check Link

    Cross Reference: Check Power Charge Circuit Note: BBIC is IC1. 11.2.2. Charger Unit Cross Reference: Charge Circuit 11.3. Check Link 11.3.1. Base Unit...
  • Page 79 Cross Reference: Power Supply Circuit/Reset Circuit Adjustment (Base Unit) 11.3.2. Cordless Handset...
  • Page 81 Cross Reference Power Supply Circuit/Reset Circuit Adjustment (Cordless Handset) 11.4. Check Cordless Handset Transmission Cross Reference: SIGNAL ROUTE...
  • Page 82 11.5. Check Cordless Handset Reception Cross Reference: HOW TO CHECK THE CORDLESS HANDSET RECEIVER SIGNAL ROUTE 11.6. Check Curl Cord Handset Transmission Cross Reference: SIGNAL ROUTE...

  • Page 83: Check Caller Id

    11.7. Check Curl Cord Handset Reception Cross Reference: HOW TO CHECK THE CORDLESS HANDSET RECEIVER SIGNAL ROUTE 11.8. Check Caller ID Cross Reference: SIGNAL ROUTE 11.9. Bell Reception 11.9.1. Base Unit...
  • Page 84 Note: BBIC is IC2. 11.9.2. Cordless Handset Cross Reference: Telephone Line Interface Check Link HOW TO CHECK THE CORDLESS HANDSET AND BASE UNIT SPEAKER Note: BBIC is IC1.

  • Page 85: Check Tam Operation

    11.10. Check DTMF Dial Cross Reference: SIGNAL ROUTE 11.11. Check TAM Operation Cross Reference: Power Supply Circuit Note: BBIC is IC2. 12. CHECK PROCEDURE (BASE UNIT) 12.1. Preparation...
  • Page 86 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). Hewlett Packard, 53131A is recommended. DC power: it must be able to output at least 1A current under 9V. Digital multi-meter (DMM): it must be able to measure voltage and current.
  • Page 87 12.2.2. PC Setting 1. Open a window of MS-DOS mode from the start-up menu. 2. Change a directory. 3. Type “SET_COM 1” from the keyboard (when COM port 1 is used for the connection). 4. Type “doskey”. Note: See the table below for frequently used commands. Command name Function Example...
  • Page 88 DECT tester: Rohde & Schwarz, CMD 60 is recommended. Frequency counter: it must be precise to be able to measure 1Hz (precision; ± 4ppm). Hewlett Packard, 53131A is recommended. DC power: it must be able to output at least 1A current under 2.4V for Cordless Handset, 9V for JIG.
  • Page 89 1. Open a window of MS-DOS mode from the start-up menu. 2. Change a directory. 3. Type “SET_COM 1” from the keyboard (when COM port 1 is used for the connection). 4. Type “doskey”. Note: See the table below for frequently used commands. Command name Function Example...
  • Page 90 Symptom Remedy* The base unit does not respond to a call from cordless handset. Make adjustments in item (A)~(H), (J)~(P). The base unit does not transmit or the transmit frequency is off. Make adjustments in item (A)~(G) (J)~(P). The transmit frequency is off. Make adjustments in item (A)~(G) (J)~(P).
  • Page 91 Items Adjustment Procedure Check or Point Replace Parts 1. Confirm that the voltage between TP22 and GND is 3.15V ± 0.2V. (C) 3.2V Supply TP22 Q2, R12, C6, Confirmation C7, C8, R13, R14 1. Confirm that the voltage between TP15 and GND is 1.8V ± 0.02V. 1.8V Supply TP15 Q3, R15,...
  • Page 92 Items Adjustment Procedure Check or Point Replace Parts (J)* Transmitted Remove the Antenna before starting step from 1 to 7. IC2, L1, C63, 1. Configure the DECT tester (CMD60) as follows; Power <Setting> Confirmation C84, C71, C73, -Test mode: FP -Traffic Carrier: 5 C104, C62, -Traffic Slot: 4...
  • Page 93 Items Adjustment Procedure Check or Point Replace Parts Frequency Follow steps 1 to 6 of (J) above. IC2, L1, C63, Offset 7.Confirm that the frequency offset is -50kHz ~ + Confirmation C84, C71, 50kHz. C73, C104, C62, C59, C64, C100, C58, C57, C105, C55, C82,...
  • Page 94 Items Adjustment Procedure Check or Point Replace Parts Timing Follow steps 1 to 6 of (J) above. IC2, L1, C63, Confirmation 7.Confirm that the Timing accuracy is -2.0ppm ~ + C84, C71, 2.0ppm. C73, C104, C62, C59, C64, C100, C58, C57, C105, C55, C82, C72,...
  • Page 95 Items Adjustment Procedure Check or Point Replace Parts (P) Power RAMP Follow steps 1 to 6 of (J) above. IC2, L1, C63, Confirmation 7.Confirm that “Power RAMP is Matching“. C84, C71, C73, C104, C62, C59, C64, C100, C58, C57, C105, C55, C82, C72, R59, R60,...
  • Page 96 Items Adjustment Procedure Check or Point Replace Parts 1. Input -45dBm/1kHz to MIC of Curl Cord Handset. (R) Audio Check IC2, CN1, Measure the Level at Line I/F and distortion level. (Curl Cord SA1, 2. Confirm that the level is -15dBm ± 5dB and confirm that the distortion level is < 5% Handset) L6, L7, D3, at TEL Line (600...

  • Page 97: Adjustment Standard (Base Unit)

    Items Adjustment Procedure Check or Point Replace Parts 1. Press SP-Phone button. SP Phone IC2, C255, 2. Press MUTE button. R251, C258, Audio Check 3. Input -20dBm/1kHz/600 to Line I/F. (SP-Phone volume Maximum) C293, D215, 4. Measure the output level at Speaker (between TP108 and TP109). 5.

  • Page 98: Adjustment Standard (Charger Unit)

    Note: (J) - (P) is refered to ADJUSTMENTS (BASE UNIT AND CHARGER UNIT) 14.2.2. Flow Solder Side View Note: (A) - (S) is refered to ADJUSTMENTS (BASE UNIT AND CHARGER UNIT) 14.3. Adjustment (Charger Unit) Items Adjustment Procedure Check or Point Replace Parts...
  • Page 99 14.4.1. Flow Solder Side View Note: (A) is refered to ADJUSTMENTS (BASE UNIT AND CHARGER UNIT) 15. ADJUSTMENTS (CORDLESS 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. Make adjustments in item (A)~(D), (G), The cordless handset does not respond to a call from base unit.
  • Page 100 Please follow the items below when BBIC or EEPROM is replaced. Items Adjustment Procedure Check or Point Replace Parts 1. Confirm that the voltage between test point “TP12” and GND is 1.8V ± 0.02V. 1.8V Supply TP12 IC1, Q2, 2. Adjust the 1.8V voltage of TP12 executing command “bandgap XX“ (XX is the value). Confirmation C40, 1.
  • Page 101 Items Adjustment Procedure Check or Point Replace Parts 1. Stop supplying 6V to J3(+) and J4(-). Charge IC1, Q4, 2. Execute the command "charge". Detection Q5, Q9, 3. Confirm that the returned value is 0x01 (hex). (OFF) D6, D7, L4, Confirmation C73, C74, R6, R7,...
  • Page 102 Items Adjustment Procedure Check or Point Replace Parts Modulatoin Follow steps 1 to 3 of (J) above. IC1, IC3, Check and 4.Confirm that the B-Field Modulation is 360kHz/div Adjusment C54, C60, ~ 380kHz/div using data type Fig 31. C61, 5.Adjust the B-Field Modulation if required. C62, C63, C64, (Execute the command "Readmod"...
  • Page 103 Items Adjustment Procedure Check or Point Replace Parts Sensitivity Follow steps 1 to 3 of (J) above. IC1, IC3, Receiver 4.Set DECT tester power to -88dBm. Confirmation C54, C60, 5.Confirm that the BER is < 1000ppm. C61, C62, C63, C64, C65, C66, C67, C69, C81,...
  • Page 104 Items Adjustment Procedure Check or Point Replace Parts Q) Power RAMP Follow steps 1 to 3 of (J) above. IC1, IC3, Confirmation 4.Confirm that Power RAMP is matching. C54, C60, C61, C62, C63, C64, C65, C66, C67, C69, C81, C82, C56, R58, R55, R76 1.
  • Page 105 Items Adjustment Procedure Check or Point Replace Parts 1. Link to Base which is connected to Line Simulator. SP phone IC1, IC2, 2. Set line voltage to 48V and line current to 40mA. Audio check C68, 3. Set the handset off-hook using SP-Phone key. C37, C90, 4.
  • Page 106 Items Adjustment Procedure Check or Point Replace Parts EEP-ROM IC10, IC1, (For KX-TCD540NZ) confirmation R39, R40 1. EEP-ROM Confirmation (Execute the command “Chk154NZRv03.bat“). 2. Confirm the returned check sum Value (check sum is 7986 ). (For KX-TCA154EX) 1. EEP-ROM Confirmation (Execute the command “Chk154ALRv02.bat“).

  • Page 107: Cordless Handset

    16. RF SPECIFICATION 16.1. Base Unit Item Value Refer to -. * Remarks TX Power 20 dBm ~ 25 dBm Adjustment (Base Unit) Modulation 360 kHz/div ~ 380 kHz/div Data type: Fig31 Adjustment (Base Unit) Frequency Offset -50 kHz ~ +50 kHz Adjustment (Base Unit) RX Sensitivity <...
  • Page 108 Power RAMP Power RAMP is matching Adjustment (Cordless Handset) ** : Refer to Adjustment (Cordless Handset) 17. HOW TO CHECK THE CORDLESS HANDSET AND BASE UNIT SPEAKER 1. Prepare the digital voltmeter, and set the selector knob to ohm meter. 2.
  • Page 110 Note: * : Refer to Cabinet and Electrical Parts ) of Cordless Handset replacement part lists. ** : Refer to Cabinet and Electrical Parts ) of Base Unit replacement part lists. 18. HOW TO CHECK THE CORDLESS HANDSET RECEIVER 1. Prepare the digital voltmeter, and set the selector knob to ohm meter. 2.

  • Page 112: Frequency Table (Mhz)

    Note: * : Refer to Cabinet and Electrical Parts ) of cordless Handset replacement part lists. 19. FREQUENCY TABLE (MHz) BASE UNIT CORDLESS HANDSET Receive Frequency Channel No Transmit Frequency Transmit Frequency Receive Frequency 1897.344 1897.344 1897.344 1897.344 1895.616 1895.616 1895.616 1895.616 1893.888...

  • Page 113: Circuit Operation (Base Unit)

    21. CIRCUIT OPERATION (BASE UNIT) 21.1. Outline Base Unit consists of the following ICs as shown in BLOCK DIAGRAM (BASE UNIT) DECT BBIC (Base Band IC): IC2 Handling all the audio, signal and data processing needed in a DECT base unit Controlling the DECT specific physical layer and radio section (Burst Module C ontroller section) ADPCM codec filter for speech encoding and speech decoding (DSP section)

  • Page 114: Power Supply Circuit

    FLASH MEMORY: IC6 Voice Prompt (TAM) D/L (DownLoad) Area FLASH MEMORY: IC7 Program D/L (DownLoad) Area EEPROM: IC3 Temporary operating parameters (for RF, etc.) Refer to EEPROM LAYOUT (BASE UNIT) Additionally, Power Supply Circuit (+4.0V, +4.0V, +3.2V, +1.8V output) Crystal Circuit (10.368MHz) Telephone Line Interface Circuit SP Phone Circuit Curl Cord Handset Interface Circuit...
  • Page 115 LCD (CN502): CN2(+6V) CN501 CN502(LCD) LED (LED501, LED502, LED503, LED504, LED505): CN2(+6V) IC14 CN501 OP AMP (IC15): CN2(+6V) IC14 IC15 TAM Flash Memory (IC6): CN2(+6V) <Fig.101>...

  • Page 116: Telephone Line Interface

    21.3. Telephone Line Interface <Function> Bell signal detection Clip signal detection...
  • Page 117 ON/OFF hook circuit Audio circuits Bell & Clip (: Calling Line Identification Presentation: Caller ID) signal detection: In the standby mode, Q4 is open to cut the DC loop current and decrease the ring load. When ring voltage appears at the TP21 (A) and TP19 (B) leads (when the telephone rings), the signal is transferred as follows;...

  • Page 118: Circuit Operation (Cordless Handset)

    The voice signal input from the TEL LINE interface goes to RF Module (RFM1) through DECT BBIC (IC2) as shown in BLOCK DIAGRAM (BASE UNIT) The voice signal passes through the analog part of IC2 where it is amplified and converted to a digital audio stream signal.

  • Page 119: Power Supply Circuit/Reset Circuit

    Cordless Handset consists of the following ICs as shown in BLOCK DIAGRAM (CORDLESS HANDSET) DECT BBIC (Base Band IC): IC1 All data signals (forming/analyzing ACK or CMD signal) All interfaces (ex: Key, Detector Circuit, Charge, DC/DC Converter, EEPROM, LCD) RF Module: IC3 PLL Oscillator Detector Compress/Expander...

  • Page 120: Charge Circuit

    23.3. Charge Circuit Circuit Operation: When charging the cordless handset on the Base Unit, the charge current is as follows; DC+(5.5V ~ 6V) R4, R5 CHARGE+(Base) CHARGE+(Cordless Handset) BATTERY+ ... Battery ... BATTERY- CHARGE-(Cordless Handset) CHARGE-(Base) DC-(GND) In this way, the BBIC on Cordless Handset detects the fact that the battery is charged.

  • Page 121: Circuit Operation (Charger Unit)

    The hands-free loudspeaker at SP+ and SP- is used to generate the ring alarm. IC2 is used to switch off the telephone loudspeaker and is used to amplify the signal to drive the hands-free loudspeaker. They are selected using the SP_AMP line from pin 70 of the BBIC.

  • Page 123: Cpu Data (Base Unit)

    26. CPU DATA (BASE UNIT) 26.1. IC2 (BBIC)
  • Page 124 Description Connection at Normal mode at Reset mode VDDIO VDDIO O-Hi O-Hi AD10 AD10 O-Hi AD11 AD11 O-Hi AD12 AD12 O-Hi AD13 AD13 O-Hi AD14 AD14 O-Hi P3[7]/PD7 P3[7] O-Hi-Z P3[1]/PD1 P3[1] O-Hi-Z P3[5]/PD5 ANT1 O-Hi-Z P3[4]/PD4 ANT2 O-Hi-Z P3[3]/PD3 PAON O-Hi-Z P3[2]/PD2...
  • Page 125 Description Connection at Normal mode at Reset mode P3[6]/PD6 O-Hi-Z O-Hi O-Hi MI/READY MI/READY SCLK SCLK O-Hi UTX/P0[0] URX/P0[1] JTIO/P0[2] D.I/O JTIO PCM_FSC1/P0[3] P0[3] PCM_FSC0/P0[4] P0[4] PCM_CLK/P0[5] P0[5] PCM_DOUT/P0[6] P0[6] PCM_DIN/P0[7] P0[7] VDDIO VDDIO INT0n/P1[0] INT1n/P1[1] ACS1/INT2n/P1[2] ACS1 ACS0 ACS0 O-Hi ACS2/INT3n/P1[3] ACS2...
  • Page 126 Description Connection at Normal mode at Reset mode P2[4]/SCL1 SCL1 P2[5]/SDA1 SDA1 DAB4 D.I/O DAB4 DAB12 D.I/O DAB12 DAB5 D.I/O DAB5 DAB13 D.I/O DAB13 DAB6 D.I/O DAB6 DAB14 D.I/O DAB14 DAB7 D.I/O DAB7 DAB15 D.I/O DAB15 O-Low P2[7]/SPIDO P2[7] O-Hi-Z P1[6]/PON P1[7]/CHARGE P1[7]...
  • Page 127 Description Connection at Normal mode at Reset mode O-Hi O-Hi O-Hi O-Hi O-Hi 27. CPU DATA (CORDLESS HANDSET) 27.1. IC1 (BBIC) Description Connection at Normal mode at Reset mode P3_7/PD7 LCD_A0 P3_1/PD1 RXDSG P3_5/PD5 SPAMP CD P3_4/PD4 D,I/O MIDI ERQ P3_3/PD3 PAON P3_2/PD2...
  • Page 128 Description Connection at Normal mode at Reset mode JTIO/P0_2 JTAG PCM_FSC1/P0_3 COL1 PCM_FSC0/P0_4 COL2 PCM_CLK/P0_5 COL3 PCM_DOUT/P0_6 COL4 PCM_DIN/P0_7 COL5 VDDIO INT0n/P1_0 ROW0 INT1n/P1_1 ROW1 INT2n/P1_2 ROW2 INT3n/P1_3 ROW3 INT4n/P1_4 MIDI_IRQ VDDE/INT5n/P1_5 COL0 SCL2/P3_0 SDA2 D,I/O P2_0/PWM0 PWM0 P2_1/PWM1 P2_2/ADC0 EX_RESET P2_3/ADC1 MIDI-CS...
  • Page 129 Description Connection at Normal mode at Reset mode VBAT2 VBAT1 AVS2 AVD2 LSR+/REF LSR+ LSR-/REF LSR- LSR_HS/CIDIN- LSR_HS VREF_HS/CIDOUT OPEN MIC- VREF- VBUF AGND MIC+ VREF+/CIDIN+ VREF+ RSTN VDDIO Note: JACK DETECTION; Detect if a Headset is inserted into the JACK or not. Without a Headset, 1.5V is measured at pin 23, while with a Headset, 0V is measured at pin 23.
  • Page 130 28.2. Introduction The base unit uses a 128K bit serial EEPROM (IC3) for storing volatile parameters. All parameters are set up before the base leaves the factory. Some of these are vital for the operation of the hardware so a set of default parameters is programmed before the actual hardware fine-tuning can be initiated.
  • Page 131 Address Initial Name Description Default value Country Type Setting EEP_EepromType EEPROM type 0x00 0x55 0x00:32kbit type TCD500/510 0x55:64kbit type TCD530/540 0xAA:128kbit type TCD505/515/535/545 other:32kbit type EEP_ModelInfo Model information 0x00 0x0F Bit0:TAM 1:Enable 0:Disable Bit1:Base Phonebook 1...1:Enable, 0:Disable Bit2:Audible Call...1:Enable, 0:Disable Bit3:SP-PHONE...1:Enable, 0:Disable Bit4-7:Not used TCD500/505: 0x00...
  • Page 132 Address Initial Name Description Default value Country Type Setting EEP_Rfpi Base ID 0xFF,0xFF,0xFF, written data by adjustment checker or ID 0xFF,0xFF writer RFPI (5Byte) EEP_FreqTrim_L Setting value of FREQ_TRM_RE 0x75 EEP_BandGap Setting value of BandGap REG 0x08 EEP_Rc0 BMC internal Register 0 0x12 1 EEP_RxAtteCrcErrorRsc Attenuation parameter Crc Error Rsc 0x03...
  • Page 133 Address Initial Name Description Default value Country Type Setting EEP_Ps2_DectPsNo DECT PS No. 0xFF 00-3F:PS No. / FF:Invalid EEP_Ps2_PsType PS Type 0xFF 00:KME's PS (Group Page ) / 01:KME's PS (Group Page/Message Waiting) 02:TD-7500 or TD-7590 / FF:Another Maker's EEP_Ps2_Ipui PS ID 0x00,0x00,0x00, IPUI (14Byte)
  • Page 134 Address Initial Name Description Default value Country Type Setting EEP_Ps5_InUseFlag IN-Use Flag 0x00 00:Invalid / 01:Valid EEP_Ps5_DectPsNo DECT PS No. 0xFF 00-3F:PS No. / FF:Invalid EEP_Ps5_PsType PS Type 0xFF 00:KME's PS (Group Page ) / 01:KME's PS (Group Page/Message Waiting 02:TD-7500 or TD-7590 / FF:Another Maker's 28.3.3.
  • Page 135 Name Description Default value Address Initial Country Type Setting EEP_ClipDetectConfig CLIP detect configuration 0x73 Bit0-2:Mode...0:Learn mode, 1:DTMF only, 2: FSK only, 3:FSK/DTMF both, 4:Russian CLIP only Bit3:Unused3 Bit4:Onhook...1=enable, 0=disable Bit5:Offhook...1=enable, 0=disable Bit6:MsgWaiting...1=enable, 0=disable Bit7:Unused7 EEP_ClipRingConfig Ring configuration 0x00 Bit0:Rpas...1=enable, 0=disable Bit1:RpasAlert...1=enable, 0=disable Bit2:Rpas2LongAlert...1=enable, 0=disable Bit3:Suppress1stRing...1=enable, 0=disable...
  • Page 136 Name Description Default value Address Initial Country Type Setting EEP_ClipPhaseConfig CLIP phase set configuration 0x04 0x84 Bit0:ForwardNumber...1=enable, 0=disable Bit1:CallingNumber...1=enable, 0=disable Bit2:Dutch...1=enable, 0=disable Bit3:Canadian...1=enable, 0=disable Bit4:KpnVmwi...1=enable, 0=disable Bit5:PriorityCheck...1=enable, 0=disable Bit6-7:AddZero...0:no add zero, 1:add zero absolutely 2:Check Number’s top is zero. If it is zero, add zero.
  • Page 137 Name Description Default value Address Initial Country Type Setting 1 EEP_ImpRemChszTimeout Impedance Remove timeout (Channel 0x2D Seizure) Unit : 10ms, Default : 450ms [Standard : 420-570ms] 1 EEP_ImpRemContTimeout Impedance Remove timeout 0x0A Unit : 100ms, Default : 1s EEP_CasMinDuration CAS minimum duration 0x06 Unit : 10ms, Default : 60ms EEP_CasMaxDuration CAS maximum duration...
  • Page 138 Name Description Default value Address Initial Country Type Setting EEP_RingPulseMin Bell Ring on minimum duration (for KPN 0x3C VoiceMail) Unit : 10ms, Default: 600ms 1 EEP_VmwiRingInterdigitMax Bell Ring Interdigit maximum (for KPN 0x32 VoiceMail) Unit : 100ms, Default: 5000ms 1 EEP_RuDtmfDurationMin RU_DTMF minimum duration 0x01 Unit : 10ms, Default : 10ms 1 EEP_RuDtmfDurationMax R U_DTMF maximaum duration...
  • Page 139 Name Description Default value Address Initial Country Type Setting Number Of Rings Patterns Before Start 0x01 EEP_RuClipRingNumBeforeSequence Sequence Default : 1 2 EEP_RuClipDisplayDigit Number Of digits to be displayed 0x07 Default:7 digits 29. EEPROM LAYOUT (CORDLESS HANDSET) 29.1. Scope The purpose of this section is to describe “layout of the EEPROM (IC10) KX-TCA154 Cordless Handset”.

  • Page 140: Eeprom Contents

    Initial Type Description The data initialized by only F command The data initialized by F and 0 command The data initialized by F, 0 and 1 command The data initialized by all command (F,0,1,2) Country Description Setting Default - no specific country setting, so revert to default value. 29.3.
  • Page 141 Name Description Default value Country AddressInitial Setting Type EEP_Subscription0 GAP Subscription Data. Storage for 4 All 0x00 subscriptions each with 53bytes. <Subscription> 12E : SUB_boAssignedIPUI 12F : SUB_abIPUI[14] 13D : SUB_abPARK[5] 142 : SUB_abSARI[4] 146 : SUB_bPLI 147 : SUB_bLAL 148 : SUB_abARIplusRPN[5] 14D : SUB_boZAP 14E : SUB_bZAP...
  • Page 142 Name Description Default value Country AddressInitial Setting Type 1 EEP_Available_Language Select Available Language 0xFF,0xBF,0xFF 0:Disable 1:Enable 1EEF EEP_Language User_Setting Language 0x01 GERAM:0 ENGLISH:1 SPANISH:2 NORWEGIAN FRENCH:4 ITALIAN:5 DENISH:6 DUTCH:7 SWEDISH:8 FINNISH:9 GREEK:10 TURKISH:11 HUNGARIAN:12 PORTUGUESE:13 RUSSIAN:14 POLISH:15 SLOVAKIAN:16 CZECH:17 CROATIAN:18 CATALAN:19 1EF0 2 EEP_SmsEatoniLanguage Eatoni Setting Language...
  • Page 143 Name Description Default value AddressInitial Country Type Setting EEP_DspSdt2Level DSP Parameter SideTone2 0xFF,0x7F,0x00, Main:SideTone2 Main route level 0x18 MictoRcv:SideTone2 MIc to Receiver level EEP_DspToneLevel DSP Parameter ToneLevel 0xFF,0x7F,0xFF, Talk:Tone Level in Talk mode 0x7F Spp:Tone Level in Spp mode EEP_DspRxMuteLevel DSP Parameter RxMute Level 0xFF,0x7F,0xFF, Talk:RxMute Level in Talk mode 0x7F...

  • Page 144: How To Replace Flat Package Ic

    30. HOW TO REPLACE FLAT PACKAGE IC 30.1. Preparation PbF (: Pb free) Solder Soldering Iron Tip Temperature of 700°F ± 20°F (370°C ± 10°C) Note: We recommend a 30 to 40 Watt soldering iron. An expert may be able to use a 60 to 80 Watt iron where someone with less experience could overheat and damage the PCB foil.
  • Page 145 Be certain each pin is located over the correct pad on the PCB. 2. Apply flux to all of the pins on the IC.
  • Page 146 3. Being careful to not unsolder the tack points, slide the soldering iron along the tips of the pins while feeding enough solder to the tip so that it flows under the pins as they are heated.

  • Page 147: Modification Procedure Of Bridge

    30.3. Modification Procedure of Bridge 1. Add a small amount of solder to the bridged pins. 2. With a hot iron, use a sweeping motion along the flat part of the pin to draw the solder from between the adjacent pads. 31.

  • Page 148: Accessories And Packing Materials

    34. ACCESSORIES AND PACKING MATERIALS 34.1. KX-TCD540NZM 34.2. KX-TCA154AZM 35. TERMINAL GUIDE OF THE ICs, TRANSISTORS AND DIODES 35.1. Base Unit...

  • Page 149: Cordless Handset

    35.2. Cordless Handset...

  • Page 150: Charger Unit

    35.3. Charger Unit 36. REPLACEMENT PARTS LIST 1. RTL (Retention Time Limited) Note: The marking (RTL) indicates that the Retention Time is limited for this item. After the discontinuation of this assembly in production, the item will continue to be available for a specific period of time. The retention period of availability is dependant on the type of assembly, and in accordance with the laws governing part and product retention.
  • Page 151 36.1. Base Unit 36.1.1. Cabinet and Electrical Parts...
  • Page 152 Ref. No. Part No. Part Name & Description Remarks PQGB10019Z1 BADGE, PANASONIC PQGG10179Z1 GRILLE, LCD ABS-HB PQGG10177Z1 GRILLE ABS-HB PQGP10246Z OPTIC CONDUCTIVE PARTS, LED LENS ABS-HB PQKE10070Z7 GUIDE, H/S HOLDER ABS-HB PQBH10041Z1 PUSH BUTTON, HOOK ABS-HB PQKM10612Z1 CABINET BODY ABS-HB...
  • Page 153 Ref. No. Part No. Part Name & Description Remarks PCB1 PQWP1D540NZH MAIN P.C.BOARD ASS'Y (RTL) (ICs) C0DBZGE00007 C1CB00001613 PQWI1D540NZH IC (*1) PQWI2D540NZH PQWI3D540NZH IC (*1) C0JBAE000255 IC10 C1BB00000265 IC12 C0JBAF000223 IC13 C0JBAF000223 IC14 C0DBZGE00007 IC15 C0ABAA000055 (TRANSISTORS) B1ADGE000004 TRANSISTOR(SI) B1ADGE000004 TRANSISTOR(SI) 2SA1625 TRANSISTOR(SI)
  • Page 154 Ref. No. Part No. Part Name & Description Remarks (JACKS & CONNECTOR) PQJJ1T023Y JACK, MODULAR PQJJ1T022Z JACK K1MN24B00077 CONNECTOR CN10 PQJJ1T030Y JACK, HANDSET (COMPONENTS PARTS) PFXBV8V101JV RESISTOR ARRAY PFXBV8V101JV RESISTOR ARRAY PFXBV8V101JV RESISTOR ARRAY PFXBV8V101JV RESISTOR ARRAY PFXBV8V101JV RESISTOR ARRAY (RESISTORS) ERJ3GEYJ473 ERJ3GEYJ562...
  • Page 155 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ102 ERJ3GEYJ565 5.6M ERJ3GEYJ565 5.6M ERJ3GEYJ104 100K ERJ3GEYJ104 100K ERJ3GEYJ104 100K ERJ3GEYJ474 470K ERJ3GEYJ121 ERJ3GEYJ121 ERJ3GEY0R00 ERJ3GEYJ103 ERJ3GEY0R00 ERJ3GEYJ102 ERJ3GEY0R00 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ181 ERJ3GEYJ181 R106 ERJ3GEYJ273 R107 ERJ3GEYJ273 R108 ERJ3GEYJ103 R109 ERJ3GEYJ103 R111...
  • Page 156 Ref. No. Part No. Part Name & Description Remarks R285 ERJ3GEYJ103 R286 ERJ3GEYJ103 R287 ERJ3GEYJ104 100K R288 ERJ3GEYJ104 100K R289 ERJ3GEYJ220 R290 ERJ3GEYJ183 R291 ERJ3GEYJ223 R292 ERJ3GEY0R00 R294 ERJ3GEYJ101 R295 ERJ3GEYJ103 R296 ERJ3GEY0R00 R297 ERJ3GEY0R00 R299 ERJ3GEYJ330 R300 ERJ3GEY0R00 R301 ERJ3GEY0R00 C323 ERJ3GEY0R00...
  • Page 157 Ref. No. Part No. Part Name & Description Remarks ECUV1H120JCV ECUV1C104KBV 0.1 ECUV1C104KBV 0.1 PQCUV1A105KB 1 PQCUV1C224KB 0.22 ECUV1C104KBV 0.1 ECEA1HKS100 PQCUV1C154KB 0.15 ECUV1C104KBV 0.1 ECUV1H100DCV 10P ECUV1H100DCV 10P ECUV1H100DCV 10P ECUV1H020CCV 2P ECUV1H330JCV ECUV1H060DCV 6P ECUV1C104KBV 0.1 ECUV1C104KBV 0.1 ECUV1C104KBV 0.1 ECUV1A105KBV 1 ECUV1H020CCV 2P...
  • Page 158 Ref. No. Part No. Part Name & Description Remarks C232 ECEA1CK101 C233 ECUV1H100DCV 10P C240 ECUV1C104KBV 0.1 C241 ECUV1C104KBV 0.1 C254 ECUV1C683KBV 0.068 C255 ECUV1H331JCV 330P C258 ECUV1C104KBV 0.1 C266 ECUV1H100DCV 10P C267 ECUV1H100DCV 10P C268 ECUV1C104KBV 0.1 C269 ECUV1H331JCV 330P C270 ECUV1C104KBV 0.1...
  • Page 159 Ref. No. Part No. Part Name & Description Remarks C317 ECUV1H100DCV 10P C325 PQCUV1H100DC 10P R102 ECUV1H121JCV 120P R110 ECUV1H121JCV 120P (OTHERS) MIC1 L0CBAB000052 MICROPHONE RFM1 J3FKK0000003 RF UNIT PQVDDSS301L VARISTOR (SURGE ABSORBER) H0D103500003 CRYSTAL OSCILLATOR 36.1.3. Operational P.C. Board Parts Ref.
  • Page 160 36.2. Cordless Handset 36.2.1. Cabinet and Electrical Parts Ref. No. Part No. Part Name & Description Remarks PQGG10159Z1 GRILLE, LCD ABS-HB PQGP10230Z1 PANEL, KEY ABS-HB PQGP10231Z PANEL, LCD PC-HB PQHS10567Z TAPE, DOUBLE SIDE (LCD) PQHS10568Z TAPE, DOUBLE SIDE (KEY) PQKM10595Z1 CABINET BODY ABS-HB PQGP10232Z...
  • Page 161 Ref. No. Part No. Part Name & Description Remarks PCB100 PQWP1D540NZR MAIN P.C.BOARD ASS'Y (RTL) (for KX-TCD540NZM) PCB100 PQWP1D154AZR MAIN P.C.BOARD ASS'Y (RTL) (for KX-TCA154AZM) (ICs) C1CB00001607 C1BB00000265 C1BB00000783 C0JBAB000371 IC10 PQWI1D540NZR IC (for KX-TCD540NZM) (*2) IC10 PQWI1D154AZR IC (for KX-TCA154AZM) (*2)
  • Page 162 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ471 ERJ3GEYJ103 ERJ3GEYJ224 220K ERJ3GEYJ562 5.6K ERJ3GEYF203 ERJ3GEYF103 ERJ3GEYJ393 ERJ3GEYJ330 ERJ3GEYJ100 ERJ3GEYJ470 ERJ3GEYJ121 ERJ3GEYJ102 ERJ3GEYJ102 ERJ3GEYJ474 470K ERJ3GEYJ331 ERJ3GEYJ101 ERJ3GEYJ222 2.2K ERJ3GEYJ184 180K ERJ3GEYJ273 ERJ3GEYJ683 ERJ3GEYJ330 ERJ3GEYJ330 ERJ3GEYJ103 ERJ3GEYJ223 ERJ6RQJR22 0.22 ERJ3GEYJ562 5.6K ERJ3GEYJ562...
  • Page 163 Ref. No. Part No. Part Name & Description Remarks ERJ3GEYJ103 (CAPACITORS) EEE0JA331P ECST0JY106 ECUV1C104KBV ECUV1H100DCV ECST0JY106 ECUV1H100DCV ECUV1A224KBV 0.22 ECUV1C683KBV 0.068 ECUV1C104KBV ECUV1A105KBV ECUV1C104KBV ECUV1C104KBV ECUV1C105ZFV ECUV1C104KBV ECUV1H100DCV ECUV1H102KBV 0.001 ECUV1C104KBV ECUV1C104KBV ECUV1C104KBV ECUV1C104KBV ECUV1C104KBV ECUV1C104KBV ECUV1A105KBV ECUV1A105KBV ECUV1A105KBV ECUV1A105KBV ECUV1C474KBV 0.47 ECUV1C474KBV...
  • Page 164 Ref. No. Part No. Part Name & Description Remarks ECUV1A105ZFV ECUV1A475KB ECUV1A105KBV ECUV1A475KB ECUV1H562KBV 0.0056 ECUV1H020CCV ECUV1H020CCV ECUV1H020CCV F1G1H100A420 ECUV1C683KBV 0.068 ECUV1H020CCV ECUV1C104KBV ECUV1C104KBV ECUV1C104KBV ECUV1H100DCV ECUV1H100DCV PQCUV1A225ZF ECUV1H020CCV ECUV1H020CCV ECUV1C105ZFV ECUV1H100DCV ECUV1H100DCV ECUV1H100DCV ECUV1H100DCV ECUV1H100DCV ECUV1H101JCV 100P ECUV1H101JCV 100P C100 ECUV1A105ZFV C101...
  • Page 165 (DIODE) B0JAME000085 DIODE(SI) (JACK) PQJJ1B4Y JACK (RESISTORS) ERJ1WYJ220 ERJ1WYJ270 36.4. Accessories and Packing Materials 36.4.1. KX-TCD540NZM Ref. No. Part No. Part Name & Description Remarks PQLV19ALZ AC ADAPTOR (for Base Unit) PQLV200ALZ AC ADAPTOR (for Charger Unit) PQJA87S CORD, TELEPHONE...

  • Page 166: Fixtures And Tools

    36.4.2. KX-TCA154AZM Ref. No. Part No. Part Name & Description Remarks PQLV200ALZ AC ADAPTOR PQKE10355Z1 HANGER, BELT CLIP PC+ABS-HB PQQX13839Z INSTRUCTION BOOK PQQW12846W LEAFLET, RECHARGE PQPP10086Z PROTECTION COVER (for Charger Unit) PQPP10084Z PROTECTION COVER (for Cordless Handset) PQPK14186Z GIFT BOX 36.5.

  • Page 167: Schematic Diagram (Base Unit)

    new technology. 37.2. Cordless Handset (SCHEMATIC DIAGRAM (CORDLESS HANDSET)) Notes: 1. DC voltage measurements are taken with an oscilloscope or a tester with a ground. 2. The schematic diagrams and circuit board may be modified at any time with the development of new technology.

  • Page 168: Circuit Board (Base Unit)

    41. CIRCUIT BOARD (BASE UNIT) 41.1. Main 41.1.1. Component View 41.1.2. Flow Solder Side View 41.2. Operation 41.2.1. Component View 41.2.2. Flow Solder Side View 42. CIRCUIT BOARD (CORDLESS HANDSET) 42.1. Component View...

  • Page 169: Flow Solder Side View

    42.2. Flow Solder Side View 43. CIRCUIT BOARD (CHARGER UNIT) 43.1. Component View 43.2. Flow Solder Side View KXTCD540NZM KXTCA154AZM 2003 Panasonic Communications Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 170 115KHz TP10 TP11 TP12 +1.8V Charge Current 1.8V DC 4.0V DC 2.7V DC +2.7V 47uH BATTERY+ BATTERY- N.M. RX-AF (Speaker phone) TP16 CHARGE+ RX-AF (Handset) 10uH POWER CHARGE- 330R 10uH 100R Beep signal TX-AF 470K (When ON Charge) 2.8V +1.8V +2.7V 1sec cycle 1 P3_7/PD7...
  • Page 171 SP_TEST2 C80 2.2u 100n 0.047u 3.9V 21-25 Speaker 100n 180K SP_TEST1 100n +2.7V 470P Receiver HEADSET JACK REV_TEST2 N.M. REV_TEST1 N.M. N.M. (2125) 2.2K 2.7V 100n 100n N.M. 100R 0V (without Headset) 1V (with Headset) +2.7V MIDI signal 37 VIB DGND 38 DrvGND D2/SCLK...
  • Page 172 SP_TEST2 C80 2.2u 100n 0.047u 3.9V 21-25 Speaker 100n 180K SP_TEST1 100n +2.7V 470P Receiver HEADSET JACK REV_TEST2 N.M. REV_TEST1 N.M. N.M. (2125) 2.2K 2.7V 100n 100n N.M. 100R 0V (without Headset) 1V (with Headset) +2.7V MIDI signal 37 VIB DGND 38 DrvGND D2/SCLK...
  • Page 173 DC_PLUG Charge_plus Charge_minus pinL SCHEMATIC DIAGRAM (CHARGER UNIT)
  • Page 174 R230 R259 R231 TP205 TP61 C232 R292 TP60 R265 R293 R260 TP201 R263 TP202 D204 D205 R262 D202 D203 TP203 R261 D201 D200 Bell Sound RESET BBIC:21 (BBIC: 110) (BBIC: 120) (10.368MHz) KX-TCD540NZM CIRCUIT BOARD (BASE UNIT) Main (Component View)
  • Page 175 (Black) (Red) TP101 (Yellow) TP109 HSSP (4.0V) TP100 TP108 TP15 (1.8V) TP15 TP22 (3.2V) TP22 TP24 TP29 TP49 TP224 TP20 TP19 TP21 TP223 TP222 ANT1 TP14 TP49 TP14 (10.368MHz) (4.0V) KX-TCD540NZM CIRCUIT BOARD (BASE UNIT) Main (Flow Solder Side View)
  • Page 176 SW531 KX-TCD540NZM CIRCUIT BOARD (BASE UNIT) Operation (Component View)
  • Page 177 SW510 SW515 SW525 SW520 TP503 TPLED4 TPLED2 TP507 LED501 TP502 TPLED3 SW502 TPLED5 TP501 TP508 SW509 TP509 VDD1 SW524 SW519 SW514 MUTE TP511 TP510 CN501 SW518 SW512 SW508 SW523 SW513 KX-TCD540NZM CIRCUIT BOARD (BASE UNIT) Operation (Flow Solder Side View)
  • Page 178 TP10 BATTERY (+) "BATT" (BBIC) (+4V) (SP_amp_IC) (IC3-27) SP_TEST2 (+) TXDA to JIG TP15 IC10 C101 SP_TEST2 SP_TEST1 REV_TEST2 REV_TEST1 RXDA to JIG SYEN SYDA SYCL BATTERY (-) BBIC: 12 TP12 TP11 SP_TEST1 (-) RSSI (10.368 MHz) (+1.8V) (+2.75V) (IC3-6) (RF clock) (RF module) SYRI...
  • Page 179 IC4: 29 (6 MHz) LED10 TALK LED9 LED8 R51 R77 SOFT_A C100 CLEAR MAIL (MIDI-IC) (MIDI-IC) KX-TCA154AZM CIRCUIT BOARD (CORDLESS HANDSET) Flow Solder Side View...
  • Page 180 CIRCUIT BOARD (CHARGER UNIT) Component View...
  • Page 181 CIRCUIT BOARD (CHARGER UNIT) Flow Solder Side View...
  • Page 182 RFM1 Marked...
  • Page 183 Marked TP200 MIC1 TP103 TP102 TP101 TP109 HSSP TP100 TP108 TP15 TP22 TP24 TP29 TP49 TP224 TP20 TP19 TP222 TP21 ANT1 TP223 TP14...
  • Page 184 Marked SW531...
  • Page 185 TALK STOP ANSWER EXIT GREET RIGHT LEFT STOP DOWN CLEAR MUTE Marked...
  • Page 186 IC10 Marked...
  • Page 187 Marked TALK LED9 SOFT_A CLEAR MAIL...
  • Page 188 Marked Marked (Component View) (Flow Solder Side View)
  • Page 189 C306 C307 C114 C105 (J)~(P) C318 DECT tester C319 C321 CMD60 RFM1 C100 R275 R105 TP50 Headset D214 10uF Dummy Cordless R280 Handset C104 10uF C324 B C E 150 ohm C101 C102 Headset AF VOLT D213 C115 R272 R296 METER R273 TP31...
  • Page 190 (H) (I) (Q) (R) (A)~(S) AF VOLT Digital LOOP (H) (I) (Q) (R) METER SIMULATOR Volt Meter (H) (I) (Q) (R) OSCILLO (H) (I) (Q) (R) TP223 TP224 SCOPE TP222 TP14 TP14 ANT1 TP223 TP21 TP222 TP19 TP20 TP224 TP49 Frequency TP49 Counter...
  • Page 191 12Ω/2W Digital Volt Meter DC Power Supply 6V...
  • Page 192 OSCILLO SCOPE AF VOLT LOOP OSCILLO METER SIMULATOR SCOPE AF VOLT DUMMY METER BASE DIGITAL DECT TESTER VOLT METER CMD60 8Ω TP10 TP15 (J) (K) (L) (M) (N) (O) (P) (Q) (Black) (E) (F) DC POWER SUPPLY TP15 J3 CHARGE+ IC10 C101 MIC-...
  • Page 193 SCL1 LED 2 SDA1 DQ[15-0] LED 5 P0[7-3] LED 3 RESn CS 74VHC574 ACS1 OR gate DAB[15-0] (D_FF) Flash ACS2 IC12 P1[0] P1[1] (64M) 74VHC574 P3[6] R/Bn P1[5] (D_FF) Hook-SW IC13 SW531 OPERATION MAIN I/O[7-0] KX-TCD540NZM BLOCK DIAGRAM (BASE UNIT)
  • Page 194 AMPLIFIER SPEAKER Speech Burst RXDA Decoding Decoding RECEIVER TXDA Speech Burst Encoding Encoding Module RSSI ADPCM SYRI Codec Interface Headset Analog SYEN Filter SP_AMP Control Front JACK CHARGE XTAL CHARGE CHARGE CIRCUIT CHARGE 10.368 CONTACTS Q4, Q5, Q9 CHARGE DETECT CHARGE BATTERY ON SWITCH...
  • Page 195 Line Voltage 48V DC (When ON-Hook) 10V DC (When OFF-Hook) 10V DC (When OFF-Hook) 0V DC (When ON-Hook) CN1 TEL_JACK TP21 TP20 TP223 TP24 TP29 N.M. Loop Current N.M . N.M. N.M. 100K N.M. C115 N.M. TP19 TP224 N.M. D206 N.M. N.M.
  • Page 196 C59 C2P TP44 (17) D10P D10P (18) (19) N.M. N.M. (20) 180R 12 RXDSG 13 SYRI 14 GND RFM1 15 GND 16 GND 17 GND 180R TP50 ANT2 10.368MHz burst C323 +4.0AV N.M. RX-DATA K4.7u KX-TCD540NZM: SCHEMATIC DIAGRAM (BASE UNIT)
  • Page 197 C59 C2P TP44 (17) D10P D10P (18) (19) N.M. N.M. (20) 180R 12 RXDSG 13 SYRI 14 GND RFM1 15 GND 16 GND 17 GND 180R TP50 ANT2 10.368MHz burst C323 +4.0AV N.M. RX-DATA K4.7u KX-TCD540NZM: SCHEMATIC DIAGRAM (BASE UNIT)
  • Page 198 0.47u KB C504 0.47u KB C505 0.47u KB 16 V1 C506 CAP2- 14 CAP2+ C507 13 CAP1+ C510 1u CAP1- C508 CAP3+ C509 10 VOUT Q501 Q502 Q503 Q504 D7(SI) 6 D6(SCL) KX-TCD540NZM: SCHEMATIC DIAGRAM (BASE UNIT) Operation 2 RES...

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