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Panasonic KX-TG2559LBS Service Manual

2.4ghz cordless system, silver version for brazil, handset, base unit
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Telephone Equipment
KX-TG2559LBS
2.4GHz Cordless System
Silver Version
(for Brazil)
© 2001 Kyushu Matsushita Electric Co., Ltd. All
rights
reserved.
distribution is a violation of law.
ORDER NO. KM40107826C3
Unauthorized
copying
and

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Summary of Contents for Panasonic KX-TG2559LBS

  • Page 1 ORDER NO. KM40107826C3 Telephone Equipment KX-TG2559LBS 2.4GHz Cordless System Silver Version (for Brazil) © 2001 Kyushu Matsushita Electric Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.

  • Page 2: Table Of Contents

    KX-TG2559LBS CONTENTS Page Page 1 LOCATION OF CONTROLS 8.5. Base Unit Reference Drawing 2 1.1. Base Unit 8.6. Handset Reference Drawing 1.2. Handset 8.7. Frequency Table 2 DISPLAY 9 DESCRIPTION 3 SETTINGS 9.1. Frequency 3.1. Connections 9.2. Time Division Duplex (TDD) operation 3.2.
  • Page 3 KX-TG2559LBS 16.1. IC201 23.1. Base Unit (SCHEMATIC DIAGRAM (Base Unit)) 17 EXPLANATION OF IC TERMINALS (RF Unit, Base Unit) 23.2. Handset (SCHEMATIC DIAGRAM (Handset)) 17.1. IC101 23.3. MEMO 18 HOW TO REPLACE FLAT PACKAGE IC 24 SCHMATIC DIAGRAM (RF UNIT) 18.1.

  • Page 4: Location Of Controls

    KX-TG2559LBS 1 LOCATION OF CONTROLS 1.1. Base Unit...

  • Page 5: Handset

    KX-TG2559LBS 1.2. Handset...

  • Page 6: Display

    KX-TG2559LBS 2 DISPLAY The handset shows you instructions and information on the display. These display prompts are shown below.
  • Page 7 KX-TG2559LBS...

  • Page 8: Settings

    3.1. Connections • USE ONLY WITH Panasonic AC ADAPTOR PQLV17LBZ • The AC adaptor must remain connected at all times. (It is normal for the adaptor to feel warm during use.) • If you unit is connected to a PBX which does not support Caller ID services, you cannot access those services.

  • Page 9: Adding Another Phone

    KX-TG2559LBS 3.2. Adding Another Phone...

  • Page 10: Standard Battery Life

    KX-TG2559LBS 3.3. STANDARD BATTERY LIFE 3.3.1. Battery Charge 3.3.2. Battery strength 3.3.3. Recharge...
  • Page 11 KX-TG2559LBS 3.3.4. Battery information 3.3.5. Standby mode ( The handset is off the base Unit)

  • Page 12: Selecting The Dialing Mode

    KX-TG2559LBS 3.4. Selecting the Dialing Mode...

  • Page 13: Selecting The Line Mode

    KX-TG2559LBS 3.5. Selecting the Line Mode...

  • Page 14: Operation

    KX-TG2559LBS 4 OPERATION 4.1. Making Calls...
  • Page 15 KX-TG2559LBS...

  • Page 16: Answering Calls

    KX-TG2559LBS 4.2. Answering Calls...

  • Page 17: Flash Button

    KX-TG2559LBS 4.3. Flash Button...

  • Page 18: Caller Id Service

    KX-TG2559LBS 4.4. Caller ID Service This unit is compatible with a Caller ID service offered by your telephone company. If you subscribe to a Caller ID service, the calling party´s information will be displayed after the first ring. The unit can record information of up to 50 different callers in the Caller List. The Caller List information is sorted by the most recent to the oldest call.
  • Page 19 KX-TG2559LBS 4.4.2. To check the number of new calls When new calls have been received, the CALLER ID indicator flashes slowly on the base unit.
  • Page 20 KX-TG2559LBS 4.4.3. Viewing the caller list You can view the caller list with the handset. Caller List information includes the caller´s phone number, and the number of times that caller called. Make sure the handset is in the standby mode initially.
  • Page 21 KX-TG2559LBS...
  • Page 22 KX-TG2559LBS 4.4.4. Calling back from the caller list...
  • Page 23 KX-TG2559LBS 4.4.5. Editing the caller’s phone number You can edit a phone number in the Caller List. After editing the number, you can continue with calling back or directory storing procedures. Make sure the handset is in the standby mode initially.
  • Page 24 KX-TG2559LBS 4.4.6. Storing caller list information in the directory...
  • Page 25 KX-TG2559LBS 4.4.7. Erasing caller list information 4.4.8. To erase all entries in the Caller List...

  • Page 26: Disassembly Instructions

    KX-TG2559LBS 5 DISASSEMBLY INSTRUCTIONS...
  • Page 27 KX-TG2559LBS Ref. No. Procedure Shown in Fig -. To remove -. Remove -. Lower Cabinet Screws (2.6 × 14)..(A) × 5 1, 2 Main P.C. Board Remove the Main P.C. Board Battery Cover Remove the Battery Cover 3, 4 Rear Cabinet Screws (2.6 ×...

  • Page 28: Assembly Instructions

    KX-TG2559LBS 6 ASSEMBLY INSTRUCTIONS 6.1. Assembly the LCD to P.C. Board (Handset)

  • Page 29: How To Check Splash Resistance

    KX-TG2559LBS 6.2. How To Check Splash Resistance...

  • Page 30: Replace The Rf Unit

    KX-TG2559LBS 6.3. Replace the RF unit For HS Follow this procedure below when replacing HS RF unit. 1. Remove speaker cables of LCD unit on HS main board. And remove LCD unit. 2. Remove solder on six legs of RF unit.

  • Page 31: Troubleshooting Guide

    KX-TG2559LBS 7 TROUBLESHOOTING GUIDE...

  • Page 32: Check Power

    KX-TG2559LBS 7.1. Check Power...

  • Page 33: Check Battery Charge

    KX-TG2559LBS 7.2. Check Battery Charge NOTE: • CP/CM: Refer to Base Unit Reference Drawing 1. • TP-BL: Refer to Handset Reference Drawing.

  • Page 34: Check Link

    KX-TG2559LBS 7.3. Check Link...

  • Page 35: Check The Rf Unit

    KX-TG2559LBS 7.4. Check the RF Unit 7.4.1. Finding out the Defective Unit Prepare HS Test Fixture and BU Test Fixture. Place the HS Test Fixture on the cradle of the base unit for checking, then confirm that they are linked. Place the handset for checking on the cradle of the BU Test Fixture, then confirm that they are linked. How to confirm the link is as follows;...
  • Page 36 KX-TG2559LBS 7.4.2.1. Handset Test Fixture Reference Drawing As for TEST fixture, only the switch as shown in figure is connected to mass production set. (Handset) SW OFF Normal Mode SW ON TEST Mode S_LOW NOTE: SW: ON (Base Unit: Normal)
  • Page 37 KX-TG2559LBS 7.4.3. Base Unit Test Fixture for Handset Switch to control normal mode and test mode on this BU Test Fixture. Test Fixture has two modes. 1. TEST mode: (RF Power Low mode) The switch of Test Fixture changed with TEST mode side.
  • Page 38 KX-TG2559LBS 7.4.3.1. Base Unit Test Fixture Reference Drawing As for TEST fixture, only the switch as shown in a figure is connected to the mass-production set. (Base Unit) SW OFF Normal Mode SW ON TEST Mode S_LOW Note: SW : ON (Portable Unit : Normal)
  • Page 39 KX-TG2559LBS 7.4.4. RF Check Flowchart Each item (1a ~ 6) of RF Check Flowchart is corresponded to Check Table for RF Block. Please refer each item one by one. (*1) See RF Unit Reference Drawing (Base Unit and Handset). (*2) Base unit RF only, refer to Check Table for RF Block.
  • Page 40 KX-TG2559LBS 7.4.5. Check Table for RF Block Item BU (Base unit) (*1) HS (Handset) (*1) Link confirmation Normal 1. The switch of “HS Test Fixture” is changed to 1. The swich of “BU TEST Fixture” is changed to normal mode side, and is charge of "HS Test “Normal mode side”, and is charge of "BU Test...
  • Page 41 KX-TG2559LBS 7.4.6. RF-DSP Interface Signal Wave Form...
  • Page 42 KX-TG2559LBS 7.5. Check Handset Voice 7.6. Check Handset Voice Transmission Reception...

  • Page 43: Check Call Id

    KX-TG2559LBS 7.7. Check Call ID...

  • Page 44: Test Mode And Adjustment

    KX-TG2559LBS 8 TEST MODE AND ADJUSTMENT 8.1. Test Mode Flow Chart for Base Unit (*1) See Base Unit Reference Drawing 1. (*2) Special check method for Base Unit individually.

  • Page 45: Test Mode Flow Chart For Handset

    KX-TG2559LBS 8.2. Test Mode Flow Chart for Handset (*1) See Handset Reference Drawing. (*2) Special check method for Handset individually.

  • Page 46: Adjustment Battery Low Detector Voltage

    KX-TG2559LBS 8.3. Adjustment Battery Low Detector Voltage After replacing handset’s DSP (IC201) and EEPROM, Re-writing Battery Low voltage to EEPROM is required. Following Test mode flow chart (Refer to Test Mode Flow Chart for Handset), DC power supply and Battery connector are required in this adjustment.

  • Page 47: Base Unit Reference Drawing

    8.4. Base Unit Reference Drawing 1 RF_UNIT 24MHz ±720Hz FREQUENCY_COUNTER TP_FREQ ANT 2 VOLT METER 25dBm 1.1kHz LOOP 600Ω SIMULATOR ANT 1 Bell SIMULATOR Call-ID 400Ω SIMULATOR TEST MODE SW LOCATOR IC551...
  • Page 48 8.5. Base Unit Reference Drawing 2 G602 G601 G603 RF UNIT G606 G604 G605 IC301...

  • Page 49: Handset Reference Drawing

    8.6. Handset Reference Drawing HEAD SET AC VOLT METER HAND SET OPEN AC VOLT METER OSCILLOSCOPE 1.1kHz OSCILLOSCOPE TEST TP_VCC MIC1 TP_BL Spectrum Analyzer 10µ MIC_M 1.1kHz ANTG MIC_P IC202 600Ω / 45dBm 10µ CABLE f = 1.1 kHz TP_VBAT Volt 3.9V meter...

  • Page 50: Frequency Table

    KX-TG2559LBS 8.7. Frequency Table...

  • Page 51: Description

    KX-TG2559LBS 9 DESCRIPTION 9.1. Frequency The frequency range of 2.4015 GHz ~ 2.4705 GHz is used. Transmitting and receiving channels between base unit and handset is same frequency. Refer to the Frequency Table. 9.2. Time Division Duplex (TDD) operation Transmission/reception between the base unit and handset is performed by time-sharing as shown in Fig. 7. 1 slot time of transmission and reception is 1mS.

  • Page 52: Spread Spectrum

    KX-TG2559LBS 9.3. Spread Spectrum Transmission and reception are operated using the spread spectrum method. DSS (Digital Spread Spectrum) Mixing the original signal with the pseudo random noise code (PN code) works the spread spectrum. In this system PN code is 15 chip.

  • Page 53: Signal Flowchart In The Whole System

    KX-TG2559LBS 9.4. Signal Flowchart in the Whole System Reception CN101 of the base unit is connected to the TEL line, and the signal is input through the bridge diode D101. While talking the relay (Q121) is turned ON and amplified at the amplifiers Q461, then led to DSP (IC501). DSP generates ADPCM signal. The ADPCM signal is input to RFIC (IC101) of RF UNIT, and is mixed with pseudo random noise code (PN code) to spread the spectrum.

  • Page 54: Explanation Of Dsp Data Communication

    KX-TG2559LBS 9.5. EXPLANATION OF DSP DATA COMMUNICATION 9.5.1. Calling 9.5.3. Ringing 9.5.4. ID CHANGE 9.5.2. To Terminate Communication...

  • Page 55: Terminal Guide Of Ic´s, Transistors And Diodes

    KX-TG2559LBS 10 TERMINAL GUIDE OF IC´S, TRANSISTORS AND DIODES 10.1. Base Unit 10.2. Handset...

  • Page 56: Block Diagram (Base Unit)

    11 BLOCK DIAGRAM (Base Unit) Q115 Q461 (LEFT) (RIGHT) ANT2 ANT1 BBIC_PWDN Q343 Q311 RF_RESET Q601 VPWR 3.6V Q611 Q621 VRF1 3.6V REGULATOR VRF2 IC551 PCONT EEP ROM Q371 S-LOW...

  • Page 57: Circuit Operation (Base Unit)

    KX-TG2559LBS 12 CIRCUIT OPERATION (Base Unit) 12.1. Power Supply Circuit Function: Power from the AC adaptor passes through a regulating consisting of IC301. Circuit Operation: IC301 is a regulated power supply. The voltage at point A is regulated to 4.5 V by IC301.

  • Page 58: Line Sending Signal

    KX-TG2559LBS 12.3. Line Sending Signal The coded signal input from the RF unit is decoded by IC501. The audio signal output from IC501-36 and is input to telephone line. 12.4. Line Receiving Signal The audio signal from line passes through Q131 and Q461 to pin38 and 39 of IC501(DSP). IC501 modulates this input audio signal...

  • Page 59: Calling Line Identification Circuit (Caller Id)

    KX-TG2559LBS 12.5. Calling Line Identification Circuit (Caller ID) Function: The caller ID is a chargeable ID which the user of a telephone circuit obtains by entering a contract with the telephone company to utilize a caller ID service. For this reason, the operation of this circuit assumes that a caller ID service contract has been entered for the circuit being used.
  • Page 60 KX-TG2559LBS...

  • Page 61: Parallel Connection Detection Circuit

    KX-TG2559LBS 12.6. Parallel Connection Detection Circuit Function: In order to disable call waiting and stutter tone functions when using telephones connected in parallel, it is necessary to have a circuit that judges whether a telephone connected in parallel is in use or not. This circuit determines whether the telephone connected in parallel is on hook or off hook by detecting changes in the T/R voltage.

  • Page 62: Telephone Line Interface

    KX-TG2559LBS 12.7. Telephone Line Interface Circuit Operation: • ANSWER In the idle mode, Q121 is open to cut the DC loop current and decrease the ring load. When ring voltage appears at the Tip (T) and Ring (R) leads (When the telephone rings), the AC ring voltage is transferred as follows: T →...

  • Page 63: Initializing Circuit

    KX-TG2559LBS 12.8. Initializing Circuit Function: This circuit is used for to initialize the microcomputer when it incorporates an AC adaptor. Circuit Operation: When the AC Adaptor is inserted into the unit, then the voltage is shifted by IC301, D509 and power is supplied to the DSP.

  • Page 64: Block Diagram (Handset)

    KX-TG2559LBS 14 CIRCUIT OPERATION (Handset) 14.1. Power Supply Circuit Voltage is supplied separately to each block. Block Diagram (Handset Power) CHARGE2 CN202 D214 CHARGE1 KEY, BACK CN202 +3.6V BATTERY LIGHT BATT+ +3.6V BATT- LEDS Q203 +3.3V REG +3.3V IC203 +3.3V IC201 +3.3V...

  • Page 65: Ringer Circuit

    KX-TG2559LBS 14.3. Ringer Circuit If the ringer volume is set to low and an alarm tone is output from 39 pin, IC201 DSP and input to Q209. Then Q208 is turned off. If the ringer volume is set to high, Q208 turns on and results in a louder beep tone.

  • Page 66: Reception Signal Circuit

    KX-TG2559LBS 14.5. Reception Signal Circuit The received signal from the base unit is output from pins 33 (SPN) and 32 (SPP) of IC201 (DSP) as the voice signal. SPN is the inverse output of SPP, and the speaker is driven by SPN and SPP. CN203 is the headphone jack. When the headphone is connected to this jack, the output to the speaker of the handset (SPN,SPP) is cut and the voice signal is output to the headphone (HSOUT) only.

  • Page 67: Cpu Data (Base Unit)

    KX-TG2559LBS 15 CPU DATA (Base Unit) 15.1. IC501...

  • Page 68: Cpu Data (Handset)

    KX-TG2559LBS 16 CPU DATA (Handset) 16.1. IC201...

  • Page 69: Explanation Of Ic Terminals (Rf Unit, Base Unit)

    KX-TG2559LBS 17 EXPLANATION OF IC TERMINALS (RF Unit, Base Unit) 17.1. IC101...

  • Page 70: How To Replace Flat Package Ic

    KX-TG2559LBS 18 HOW TO REPLACE FLAT PACKAGE IC 18.1. Preparation 18.3. Modification Procedure of Bridge • SOLDER Sparkle Solder 115A-1, 115B-1 or Almit Solder KR-19, KR- 1. Re-solder slightly on bridged portion. 19RMA 2. Remove remained solder along pins employing soldering •...

  • Page 71: Cabinet And Electrical Parts (Base Unit)

    KX-TG2559LBS 19 CABINET AND ELECTRICAL PARTS (Base Unit)

  • Page 72: Cabinet And Electrical Parts (Handset)

    KX-TG2559LBS 20 CABINET AND ELECTRICAL PARTS (Handset)

  • Page 73: Accessories And Packing Materials

    KX-TG2559LBS 21 ACCESSORIES AND PACKING MATERIALS...

  • Page 74: Replacement Parts List

    KX-TG2559LBS 22 REPLACEMENT PARTS Ref. Part No. Part Name & Description Remarks PQSA10110Y ANTENNA LIST PQYF10195W1 LOWER CABINET PQYM10111W2 UPPER CABINET This replacement parts list are Brazil version only. PQZHTG2583BH CHARGE TERMINAL ASS´Y Note: 22.1.2. MAIN P.C. BOARD PARTS 1. RTL (Retention Time Limited) Ref.
  • Page 75 KX-TG2559LBS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks X501 PQVCK4096N9Z CRYSTAL OSCILLATOR R464 ERJ3GEYJ474 470k G601 PQJT10152Z BATTERY TERMINAL R465 ERJ3GEYJ390 G602 PQJT10152Z BATTERY TERMINAL R516 ERJ3GEY0R00 G603 PQJT10152Z BATTERY TERMINAL...

  • Page 76: Handset

    KX-TG2559LBS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C501 ECEA0JU102 1000 PQP510SVC BATTERY C502 ECUV1C104ZFV PQQT22262Z CHARGE LABEL C503 ECUV1C104ZFV PQSA10120U ANTENNA C504 ECUV1C104ZFV PQSX10171Z RUBBER SWITCH C505 ECUV1C104ZFV PQKF10514Z2 LOWER CABINET...

  • Page 77: Accessories And Packing Materials

    KX-TG2559LBS Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R210 ERJ3GEYJ104 100k C231 ECUV1A224KBV 0.22 R211 ERJ3GEYJ104 100k C232 ECUV1C104KBV R212 ERJ3GEYJ101 C233 ECUV1C104ZFV R213 ERJ3GEYJ101 C234 ECUV1A224KBV 0.22 R217 ERJ3EKF4533 453k...

  • Page 78: For Schematic Diagram

    KX-TG2559LBS 23 FOR SCHEMATIC DIAGRAM 23.1. 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 79: Memo

    KX-TG2559LBS 23.3. MEMO...

  • Page 80: Schmatic Diagram (Rf Unit)

    24 SCHMATIC DIAGRAM (RF UNIT) 24.1. Base Unit and Handset IC106 IC114 IC101 IC110 IC109 IC105...

  • Page 81: Schematic Diagram (Base Unit)

    KX-TG2559LBS 25 SCHEMATIC DIAGRAM (Base Unit) TX High power Level +20 ± 4dBm 2.4015 ~2.4705GHz IC751 3.5V 3.7V IC571 26mVp-p IC501 IC551 RF Signal TALK TX TALK RX...
  • Page 82 KX-TG2559LBS 16mVp-p 20mVp-p Input f=1.1kHz 140mVp-p (-25dBm/ 600 ) 60mVp-p Output 420mVp-p 3.7V -13dBm IC331 11.0V 4.1V 22mV 4.5V 4.1V IC301 6.8V 3.8V 7.4V 400mVp-p 4.0V 4.1V TG2559LBS: SCHEMATIC DIAGRAM (Base Unit)

  • Page 83: Schematic Diagram (Handset)

    KX-TG2559LBS 26 SCHEMATIC DIAGRAM (Handset) TX High power RF SIGNAL TX H/S TX Normal Level +20 ± 4dBm RX H/S RX Normal 2.4015~2.4705GHz IC202...
  • Page 84 KX-TG2559LBS RF SIGNAL TX H/S TX Normal RX H/S RX Normal f=1.1kHz 18mVp-p (-45dBm/600 -28dBm 90mVp-p 120mVp-p 120mVp-p -26dBm -26dBm GNDPLL S_LOW VREF PCONT GNDA f=1.1kHz HMIN 18mVp-p (-45dBm/600 ) HMGS CIDO CIDIP IC201 CIDIN DCIN 98 : EEPROM_CLK 99 : EEPROM_DI...

  • Page 85: Circuit Board (Rf Unit)

    KX-TG2559LBS 27 CIRCUIT BOARD (RF Unit) 27.1. RF Unit Reference Drawing (Base Unit and Handset) C188 C146 IC114 C157 L115 R128 C178 C161 R127 R129 C162 C130 C163 C169 IC106 L116 C184 C167 C150 L117 C185 C149 C165 L110 IC109...

  • Page 86: Circuit Board (Base Unit)

    KX-TG2559LBS 28 CIRCUIT BOARD (Base Unit) 28.1. Component View G602 G601 G603 IC761 RF UNIT IC741 G606 G604 G605 IC301 IC331...

  • Page 87: Flow Solder Side View

    KX-TG2559LBS 28.2. Flow Solder Side View...

  • Page 88: Circuit Board (Handset)

    KX-TG2559LBS 29 CIRCUIT BOARD (Handset) 29.1. Component View IC203 RF UNIT IC202...
  • Page 89 D216 R272 CN201 C215 C212 C297 R218 C298 R206 R205 LED205 LED206 LED207 LINE1 LINE2 CONF TALK DIRECT LEFT RIGHT INT/CLEAR FUNC/EXIT DOWN LED201 LED202 R201 R202 R203 R204 LED203 LED204 FLS/CWIT RDL/PAUSE...
  • Page 90 KX-TG2559LBS KXTG2559LBS Printed in Japan...

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