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.
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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.
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.
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.
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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.
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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.
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KX-TG2559LBS 4.4.4. Calling back from the caller list...
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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.
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KX-TG2559LBS 4.4.6. Storing caller list information in the directory...
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KX-TG2559LBS 4.4.7. Erasing caller list information 4.4.8. To erase all entries in the Caller List...
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.
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;...
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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)
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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.
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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)
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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.
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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...
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KX-TG2559LBS 7.4.6. RF-DSP Interface Signal Wave Form...
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.
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.
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...
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8.5. Base Unit Reference Drawing 2 G602 G601 G603 RF UNIT G606 G604 G605 IC301...
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...
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.
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.
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.
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.
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...
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.
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.
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 →...
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.
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.
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.
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.
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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...
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.