Panasonic KX-TG5671BXS Service Manual Download Page 69

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17 CIRCUIT OPERATION (HANDSET)

17.1. Construction

The circuit mainly consists of DSP and RF part as shown in the block diagram.

17.1.1. DSP: IC201

Function:

Battery Low, Power down detect circuit

Ringer Generation

Interface circuit

RF part, Speaker, Mic, LED, Key scan, LCD, Headset

Initial waves:

Note:

(*1) The initializing time of the DSP chip is 20ms under normal conditions.

17.1.2. RF part

Mainly voice signal is modulated to RF, or it goes the other way.

17.1.3. EEPROM: IC241

All setting data is stored.

ex: ID code, user setting (Phonebook, Caller ID data)

KX-TG5671BXS / KX-TGA560BXS

Summary of Contents for KX-TG5671BXS

Page 1: ...o Ltd All rights reserved Unauthorized copying and distribution is a violation of law KX TG5671BXS KX TGA560BXS Digital Cordless Answering System Silver Version for Middle Near East and Africa Telephone Equipment ORDER NO KM40511937CE ...

Page 2: ...lowchart in the Whole System 50 10 EXPLANATION OF LINK DATA COMMUNICATION 51 10 1 Calling 51 10 2 To Terminate Communication 51 10 3 Ringing 51 11 BLOCK DIAGRAM BASE UNIT_MAIN 52 12 CIRCUIT OPERATION BASE UNIT_MAIN 53 12 1 DSP Digital Speech Signal Processing IC501 53 12 2 Flash Memory IC601 53 12 3 Power Supply Circuit 54 12 4 Reset Circuit 56 12 5 Telephone Line Interface 57 12 6 Auto Disconnect...

Page 3: ...Unit 87 27 2 Handset 87 28 REPLACEMENT PARTS LIST 88 28 1 Base Unit 88 28 2 Handset 90 28 3 Accessories and Packing Materials 92 28 4 Fixtures and Tools 92 29 FOR SCHEMATIC DIAGRAM 93 29 1 Base Unit SCHEMATIC DIAGRAM BASE UNIT_MAIN 93 29 2 Handset SCHEMATIC DIAGRAM HANDSET_MAIN 93 30 SCHEMATIC DIAGRAM BASE UNIT_MAIN 94 31 SCHEMATIC DIAGRAM BASE UNIT_RF PART 96 32 SCHEMATIC DIAGRAM BASE UNIT_OPERAT...

Page 4: ...ash or damage to the PCB PbF solder will tend to splash if it is heated much higher than its melting point approximately 1100 F 600 C If you must use Pb solder on a PCB manufactured using PbF solder remove as much of the original PbF solder as possible and be sure that any remaining is melted prior to applying the Pb solder When applying PbF solder to double layered boards please check the compone...

Page 5: ...atic electricity When repairing the following precautions will help prevent recurring malfunctions 1 Cover plastic parts boxes with aluminum foil 2 Ground the soldering irons 3 Use a conductive mat on worktable 4 Do not grasp IC or LSI pins with bare fingers 3 CAUTION 1 Danger of explosion if battery is incorrectly replaced 2 Replace only with the same or equivalent type recommended by the manufac...

Page 6: ...e Note for service The battery strength may not be indicated correctly if the battery is disconnected and connected again even after it is fully charged In that case by recharging the battery as mentioned above you will get a correct indication of the battery strength 6 KX TG5671BXS KX TGA560BXS ...

Page 7: ...4 1 3 Battery Level 4 1 4 Panasonic Battery Performance 7 KX TG5671BXS KX TGA560BXS ...

Page 8: ...4 2 Location of Controls 4 2 1 Base Unit 8 KX TG5671BXS KX TGA560BXS ...

Page 9: ...4 2 2 Handset 9 KX TG5671BXS KX TGA560BXS ...

Page 10: ...4 3 Displays 4 3 1 Display Items 4 3 2 Troubleshooting Handset LCD 10 KX TG5671BXS KX TGA560BXS ...

Page 11: ...4 4 Settings 4 4 1 Connecting the AC Adaptor and Telephone Line Cord 11 KX TG5671BXS KX TGA560BXS ...

Page 12: ...4 4 2 Programmable Settings 4 4 2 1 Programming by Scrolling through the Display Menus 12 KX TG5671BXS KX TGA560BXS ...

Page 13: ...4 4 2 2 Programming Using the Direct Commands 13 KX TG5671BXS KX TGA560BXS ...

Page 14: ...4 4 3 Dial Lock 14 KX TG5671BXS KX TGA560BXS ...

Page 15: ...4 5 Troubleshooting 15 KX TG5671BXS KX TGA560BXS ...

Page 16: ...16 KX TG5671BXS KX TGA560BXS ...

Page 17: ...17 KX TG5671BXS KX TGA560BXS ...

Page 18: ...5 1 Base Unit Shown in Fig To Remove Remove 1 Cabinet Cover Screws 2 6 12 A 5 Main P C Board Tapes Solders and Cable Main P C Board 2 Operational P C Board Tape Screws 2 6 8 B 8 Operational P C Board 18 KX TG5671BXS KX TGA560BXS ...

Page 19: ...5 2 Handset Shown in Fig To Remove Remove 3 Cabinet Cover Screws 2 14 C 2 4 Follow the procedure 5 Main P C Board Tape and Solders Screws 2 9 D 3 Main P C Board 19 KX TG5671BXS KX TGA560BXS ...

Page 20: ...6 HOW TO REPLACE THE HANDSET LCD 20 KX TG5671BXS KX TGA560BXS ...

Page 21: ... the RF part P 27 Check Handset Transmission P 33 Check Handset Reception P 33 Check Caller ID P 33 Note 1 When a user claims that the unit disconnects a call right after the greeting message and no incoming messages can be recorded this symptom can not be reappeared with TEL simulator in the service center So in that case try Check Record P 23 item C D 7 TROUBLESHOOTING GUIDE 21 KX TG5671BXS KX T...

Page 22: ...1 The initialization was tried but it could not be done 1 Check the peripheral circuit of Flash Memory visually 2 Confirm that the voltage is added to the power supply pin If no voltage is detected replace the Flash Memory because it might be defect 3 Solder the Flash Memory again E3 E9 When the adjustment data was checked an error was detected The adjustment data may not be written Note Flash Mem...

Page 23: ...he procedures below Auto Disconnect detect CPC detect PROCEDURE at Stand by mode Enable 1 STOP GREETING CHECK simultaneously Enable 1 default Disable STOP GREETING CHECK VOL simultaneously Disable 2 STOP GREETING CHECK VOL simultaneously Note 1 Both Auto Disconnect and CPC don t detect for the first 2 seconds 2 If the Disable is selected even if the parallel connected telephone is OFF HOOK the lin...

Page 24: ...cuit P 54 Cross Reference SIGNAL ROUTE P 73 Telephone Line Interface P 57 Note Flash Memory is IC601 DSP is IC501 Note Flash Memory is IC601 DSP is IC501 7 4 Check Playback 7 5 Check Sp phone Transmission 24 KX TG5671BXS KX TGA560BXS ...

Page 25: ...TE P 73 Note Flash Memory is IC601 DSP is IC501 7 6 Check Sp phone Reception 7 7 Check Battery Charge Note Flash Memory is IC601 DSP is IC501 1 Refer to SPECIFICATION on cover page for part number and supply voltage of AC adaptor 25 KX TG5671BXS KX TGA560BXS ...

Page 26: ...Note Flash Memory is IC601 DSP is IC501 1 Refer to Finding out the Defective part P 27 Cross Reference Check the RF part P 27 7 8 Check Link 26 KX TG5671BXS KX TGA560BXS ...

Page 27: ...ut the Defective part After All the Checkings or Repairing 1 Re register the checked Handset to the checked Base Unit and Regular HS to Regular BU Note 1 HS Handset 2 BU Base Unit 7 9 1 1 Registering a Handset 27 KX TG5671BXS KX TGA560BXS ...

Page 28: ...7 9 2 RF Check Flowchart Each item 1 6 of RF Check Flowchart corresponds to Check Table for RF part P 29 Please refer to the each item 28 KX TG5671BXS KX TGA560BXS ...

Page 29: ...ar BU 2 Confirm that RSSI of the Regular BU is approximately 2V by Oscilloscope 6 5 RX Sensitivity confirmation Regular HS BU Mode Test Burst Mode 1 HS BU to be checked Mode RX CW Mode 4 1 Place the Regular HS about 15cm away from the BU 2 Confirm that RSSI of the BU is approximately 2V by Oscilloscope 5 1 Place the HS about 15cm away from the Regular BU 2 Confirm that RSSI of the HS is approximat...

Page 30: ...Register Regular HS to BU to be checked 2 Set BU to Test Link mode 3 Set Regular HS to Test Link mode Set TX Power and RX Sensitivity of the BU and Regular HS by CHART1 At distance of about 20m between HS and BU Link OK RX Sensitivity of the BU is OK No Link RX Sensitivity of the BU is NG 1 Register HS to be checked to Regular BU 2 Set Regular BU to Test Link mode 3 Set HS to Test Link mode Set TX...

Page 31: ...7 9 5 RF DSP Interface Signal Wave Form Test Burst Mode 31 KX TG5671BXS KX TGA560BXS ...

Page 32: ...Test Burst Mode 32 KX TG5671BXS KX TGA560BXS ...

Page 33: ...efer to Check the RF part P 27 7 12 Check Caller ID Cross Reference Telephone Line Interface P 57 Calling Line Identification Caller ID P 60 Note Make sure the format of the Caller ID service of the Telephone company that the customer subscribed to Also we recommend to confirm that the customer is really a subscriber of the service 33 KX TG5671BXS KX TGA560BXS ...

Page 34: ...ODE 8 1 Test Mode Flow Chart for Base Unit 8 1 1 Test Burst Mode Note 1 LCD displays the Channel number 2 Refer to Check Table for RF part P 29 and RX CW Test Mode P 39 for proper Handset settings 34 KX TG5671BXS KX TGA560BXS ...

Page 35: ...8 1 2 RX CW Test Mode Note 1 LCD displays the Channel number 2 Refer to Check Table for RF part P 29 and Test Burst Mode P 38 for proper Handset settings 35 KX TG5671BXS KX TGA560BXS ...

Page 36: ...Link Mode Note 1 LCD displays the Channel number 2 LCD displays the number of selected power 3 Refer to Check Table for RF part P 29 and Test Link Mode P 40 for proper Handset settings 36 KX TG5671BXS KX TGA560BXS ...

Page 37: ...8 1 4 Adjustment Mode Cross Reference Check and Adjust X501 Base Unit Frequency P 42 Note 1 This is an adjustment value hex 37 KX TG5671BXS KX TGA560BXS ...

Page 38: ...t for Handset 8 2 1 Test Burst Mode Note 1 LCD displays the Channel number exception default CH00 1ch 2 Refer to Check Table for RF part P 29 and RX CW Test Mode P 35 for proper Base Unit settings 38 KX TG5671BXS KX TGA560BXS ...

Page 39: ... RX CW Test Mode Note 1 LCD displays the Channel number exception default CH00 1ch 2 Refer to Check Table for RF part P 29 and Test Burst Mode P 34 for proper Base Unit settings 39 KX TG5671BXS KX TGA560BXS ...

Page 40: ... Mode Note 1 LCD displays the Channel number exception default CH00 1ch 2 for factory use only 3 Refer to Check Table for RF part P 29 and Test Link Mode P 36 for proper Base Unit settings 40 KX TG5671BXS KX TGA560BXS ...

Page 41: ...ustment Mode Cross Reference 1 Adjust Battery Low Detector Voltage Handset P 42 Note 2 These are the default values 3 These values may not be fixed depending on the battery strength 41 KX TG5671BXS KX TGA560BXS ...

Page 42: ...checking tolerance 100Hz adjust to Adjustment tolelance 30Hz by pressing or key Adjustment Tolerance 13 824MHz 30Hz 5 Press TALK key to write the new frequency factor in EEPROM 6 Turn the power off Then this value is available Cross Reference Adjustment Mode P 41 8 4 Adjust Battery Low Detector Voltage Handset After Handset s DSP IC201 or EEPROM IC241 replacement Re writing Battery Low voltage to ...

Page 43: ...684 C689 C688 C504 C679 C677 RA500 RA501 C503 C663 C381 D380 C332 4 1 5 8 C331 C307 C304 R300 RST R422 R423 R421 R373 Q143 R371 R303 C308 R301 R364 R365 C303 R341 R340 R342 R304 R305 5 4 1 3 R372 R343 C342 C422 C423 25 1 51 75 26 50 76 100 C611 R460 R454 R453 MIP2 MIN2 R452 C453 R533 R459 R601 C601 R171 C172 R122 R121 R134 C121 C122 C120 C160 C162 C142 D142 C517 HSSPOUT R517 C174 C515 C341 C352 C1...

Page 44: ... C377 C303 C304 C307 C208 C317 C226 R226 C243 R317 R333 C333 C336 C305 R222 R228 R201 C202 C224 R224 R223 D223 C222 C221 C212 C214 C215 C201 C219 R227 R234 R247 R232 R246 C227 C246 C322 C321 C334 L334 C332 R331 R263 R262 R261 R323 R324 L332 L327 L326 D326 D327 L211 C262 C371 C272 C273 C386 R272 R273 C361 L331 D323 D324 C335 R231 C231 C225 R225 C204 C340 R340 C306 R208 R334 C244 C316 C315 C379 C352...

Page 45: ...76 5826 590680 13 5770 404840 45 5798 944684 77 5827 484527 14 5771 294732 46 5799 834576 78 5828 374420 15 5772 188580 47 5800 728424 79 5829 268268 16 5773 078473 48 5801 618316 80 5830 158160 17 5773 972320 49 5802 512164 81 5831 052008 18 5774 862213 50 5803 402057 82 5831 941900 19 5775 756060 51 5804 295904 83 5832 835748 20 5776 645953 52 5805 185797 84 5833 725641 21 5777 539801 53 5806 07...

Page 46: ...662 13 5770 402867 45 5798 942710 77 5827 482554 14 5771 296714 46 5799 836558 78 5828 376402 15 5772 186607 47 5800 726451 79 5829 266294 16 5773 080455 48 5801 620298 80 5830 160142 17 5773 970347 49 5802 510191 81 5831 050035 18 5774 864195 50 5803 404039 82 5831 943882 19 5775 754087 51 5804 293931 83 5832 833775 20 5776 647935 52 5805 187779 84 5833 727623 21 5777 537828 53 5806 077671 85 583...

Page 47: ...Phone numbers Caller list and etc This operation should not be performed for a usual repair 8 8 1 Base Unit Note 1 Telephone line must be connected 8 8 2 Handset Note 1 Be sure to short the battery terminals of the Handset with a lead wire etc for 2 seconds for discharge after removing the battery 47 KX TG5671BXS KX TGA560BXS ...

Page 48: ... the same frequency The construction of RX TX frequency data is shown below It consists of 4 slots from the Base Unit to the Handset and 4 slots from the Handset to the Base Unit total 8 slots in 10ms By this slot system simultaneous air link and communication between 4 Handsets and the Base Unit can be realized One communication between Handset and the Base Unit is done by one slot from the Base ...

Page 49: ...form four duplex communications simultaneously In 1 slot 1 25ms the 10ms of voice data is transmitted Each slot makes every frame frequency hop 100hops sec Although each slot UpLink3 and UpLink4 uses different frequency UpLink3 and DownLink3 use the same frequency 2 Handsets Link Traffic Bearer A link is established between Base Unit and Handset The state where duplex communication is performed Th...

Page 50: ...P performs TDD TDMA and ADPCM decoding to convert the RXDATA into the voice signal then it is output to the speaker Transmission The voice signal entering from the Handset microphone is led to DSP IC201 The DSP encodes ADPCM and TDD TDMA with FHSS to TXMOD The TXMOD signal is enter to IC701 of RF PART and modulated to 2 4GHz The 2 4GHz signal is up converted to 5 8GHz RF signal by IC801 The RF sig...

Page 51: ...10 EXPLANATION OF LINK DATA COMMUNICATION 10 1 Calling 10 2 To Terminate Communication 10 3 Ringing 51 KX TG5671BXS KX TGA560BXS ...

Page 52: ...CT1 RECEIVE AMP DCIN1 IC331 RESET POWER_DOWN VCCIN VCC VCCA VCCPA CHARGE CURRENT CHG_CTL INT_1 V_RF INT_1 5 VCC IC601 FLASH MEMORY LCD KEYS Operational P C Board IC300 Q300 R131 R132 Q171 R371 R373 RSSI SHCTRL RADIO_EN TX_EN RX_EN LO_EN SYN_DATA SYN_CLK OSC_IN SYN_LE2 TXDATA V_RF VPA Q535 SI SO CS COM1 COM2 SEG3 12 OSC_IN KEY1 6 KEYA F RXDATA MIP SYN_LE1 SYN_OUT RX_GAIN RF_RESET 3 3V REGULATOR wit...

Page 53: ...MF detection is performed during Record Play back and Line Monitoring modes of operation When the DTMF data from the Handset is received the DTMF signal is output Synthesized Voice Pre recorded message The DSP implements synthesized Voice utilizing the built in speech detector and a Flash Memory which stored the vocabulary Caller ID demodulation The DSP implements monitor and demodulate the FSK si...

Page 54: ...pply Circuit Function The power supply voltage from AC adaptor is converted to the desired voltage of each block Circuit Operation Q300 and IC300 4 0V DCDC Converter IC331 3 3V Regulator 54 KX TG5671BXS KX TGA560BXS ...

Page 55: ...cuits Main charge 130 220mA at the Battery of maximum 7 hours is started soon after the Handset is placed on the Base Unit Then it changes to Trickle charge to prevent from overcharging Q361 and Q362 detect the ON HOOK state Handset is placed on Base Unit 55 KX TG5671BXS KX TGA560BXS ...

Page 56: ...t Operation When the AC Adaptor is inserted into the unit then the voltage is shifted by IC331 and power is supplied to the DSP The set starts to operate when VCC goes up to 3 0V or more in the circuit voltage diagram Note 1 The initializing time of the DSP chip is 28ms under normal conditions 56 KX TG5671BXS KX TGA560BXS ...

Page 57: ...SP detects a ring signal Q141 turns on thus providing an off hook condition active DC current flow through the circuit Following signal flow is the DC current flow T L101 D101 Q141 Q161 R163 D101 L102 P101 R ON HOOK Circuit Q141 is open Q141 is connected as to cut the DC loop current and to cut the voice signal The unit is consequently in an on hook condition Pulse Dial Circuit Pin 59 of DSP turns...

Page 58: ...eration The voltage of pin 90 of IC501 is monitored If a parallel connected telephone is put into OFF HOOK status the presence absence of a parallel connection is determined when the voltage changes by 0 2V or more When the set detects the parallel connected telephone is OFF HOOK status the line is disconnected You can enable or disable the Auto Disconnect function See Check Record P 23 58 KX TG56...

Page 59: ...r off hook by detecting changes in the T R voltage Circuit Operation Parallel connection detection when on hook When on hook the voltage is monitored at pin 86 of IC501 There is no parallel connection if the voltage is 1 65 V or higher while a parallel connection is deemed to exist if the voltage is lower Parallel connection detection when off hook When off hook the voltage is monitored at pin 90 ...

Page 60: ...The method is chosen according to the exchange of telephone office This unit is available to receive the data with both methods and displays the received data on LCD FSK Frequency Shift Keying format DTMF format It is the method to send the telephone number of calling party with DTMF to the telephone DTMF is sent before the first bell signal The data is sent in turn first the start code secondly t...

Page 61: ...cuit 2 4GHz 2 4GHz FL811 FL891 FL881 IC851 5 8GHz Power Amp 5 8GHz LNA and Antenna Switch Circuit V_PA V_RF RADIO_EN SYN_LE2 SYN_CLK SYN_DATA SYN_LE1 OSC_IN TX_EN SYN_OUT TX_DATA RX_DATA RSSI SHCTRL RF_RESET RX_EN RX_GAIN DSP PLL Serial Interface 5 8GHz Converter Circuit IC801 3 4GHz 5 8GHz PA_CONT VCC TXEN REFIN ANT0 RXEN RXGAIN 5 8GHz FL821 KX TG5671 BLOCK DIAGRAM Base Unit_RF Part KX TG5671BXS ...

Page 62: ...it 2 4GHz 2 4GHz FL811 IC851 5 8GHz Power Amp 5 8GHz LNA and Antenna Switch Circuit V_PA V_RF RADIO_EN CON_EN SYN_LE2 SYN_CLK SYN_DATA SYN_LE1 OSC_IN TX_EN SYN_OUT TX_DATA RX_DATA RSSI SHCTRL RF_RESET RX_EN RX_GAIN DSP PLL Serial Interface 5 8GHz Converter Circuit IC801 3 4GHz 5 8GHz PA_CONT VCC TXEN REFIN RXEN RXGAIN 5 8GHz FL821 KX TGA560 BLOCK DIAGRAM Handset_RF Part FL881 KX TG5671BXS KX TGA56...

Page 63: ...iption RF part includes Transmitter and Receiver functions Digital signals Mainly voice data that come from DSP are modulated and are transmitted On the other hand received signals are demodulated and go out to DSP 63 KX TG5671BXS KX TGA560BXS ...

Page 64: ...se Unit or 3 3V at Handset is supplied to the Power amplifier in 5 8GHz PA circuit IC841 is 3 0V Regulators and IC761 is a 2 5V Regulator They output Vcc_5 8GHz and Vcc_2 4GHz respectively by order of RADIO_EN signal or CON_EN signal V_RF is approximately 4 0V Base Unit or 3 6V Handset 64 KX TG5671BXS KX TGA560BXS ...

Page 65: ...cuit and supplied to pin4 of IC701 then demodulated signal RX_DATA comes out from pin 16 At the same time RSSI Received Signal Strength Indicator outputs from the pin 14 Reference clock 13 824MHz from DSP block is supplied to pin 11 of IC701 VCC_2 4G supplies 2 5V regulated voltage Note The exposed GND_PLATE on the bottom of the IC701 supplies the circuit ground s for the entire chip It is very im...

Page 66: ...e and up converts into 5 8GHz TX signal This 5 8GHz TX signal is output from pin 2 and goes into the 5 8GHz PA circuit 5 8GHz RX signal from 5 8GHz LNA circuit supplied to pin 5 of IC801 and internal RX MIXER multiplies it by 3 4GHz Local signal from internal VCO module and down converts into 2 4GHz RX signal This 2 4GHz RX signal is output from pin 15 and goes into the 2 4GHz Mod Demod circuits N...

Page 67: ...E on the bottom of the IC851 supplies the circuit ground s for the entire chip It is very important that a good solder connection is made between this GND_PLATE and the ground plane of the PCB underlying the IC851 Base Unit IC851 includes Switches for High frequency signals and controlled by ANT0 signal and ANT 1 signal from DSP DSP is checking RSSI Received Signal Strength Indicator signal and se...

Page 68: ...N CON_EN SYN_LE2 SYN_OUT SYN_DATA SYN_CLK SYN_LE1 RX_GAIN RX_EN TX_EN SHCTRL RF_RESET RSSI WP CLK DATA LCD_LIGHT KEY_LIGHT KEYSTOROBE_A F KEYIN_1 5 Q231 CHARGE DETECT CHARGE Q361 Q221 Q362 Q363 CHARGE CONTROL RESET POWER DOWN REGULATOR MIC SP Headset Jack CN331 Q331 LED261 HEADSET DETECT Monitor SP 3 3V REGULATOR LCD KEYS RF part ANT X201 13 824MHz EEPROM BATTERY OSC IN PA_CONT TX_DATA RX_DATA Q26...

Page 69: ...ircuit Ringer Generation Interface circuit RF part Speaker Mic LED Key scan LCD Headset Initial waves Note 1 The initializing time of the DSP chip is 20ms under normal conditions 17 1 2 RF part Mainly voice signal is modulated to RF or it goes the other way 17 1 3 EEPROM IC241 All setting data is stored ex ID code user setting Phonebook Caller ID data 69 KX TG5671BXS KX TGA560BXS ...

Page 70: ...17 2 Power Supply Circuit Voltage is supplied separately to each block 70 KX TG5671BXS KX TGA560BXS ...

Page 71: ...GE and CHARGE flows R231 Q231 pin38 of IC201 where the charge is detected Then IC201 calculates the battery consumption amount from the previous charge and it controls Q361 Q362 Q363 by pin80 of IC201 until charging is complete When charging is complete the control pattern is switched to Trickle charging form from Operational charging form 17 4 Ringer and Handset SP Phone 71 KX TG5671BXS KX TGA560...

Page 72: ...e power for the microphone is supplied from DSP 92 and the power is turned OFF on standby 17 6 Reception Signal The voice signal from the Base Unit is output to DSP 98 This signal is led to the headset jack CN331 The signal through the headset jack and the other signal output from DSP 97 drives the speaker When the headset is inserted to the jack the voice signal is cut at the jack so the sound do...

Page 73: ...18 SIGNAL ROUTE Each signal route is as follows 73 KX TG5671BXS KX TGA560BXS ...

Page 74: ...Each signal route is as follows RF part signal route 74 KX TG5671BXS KX TGA560BXS ...

Page 75: ...O 49 FLASH_SCK High Middle Low 50 KEY_STB_F D O Active Not 51 KEY_STB_E D O Active Not 52 KEY_STB_D D O Active Not 53 KEY_STB_C D O Active Not 54 KEY_STB_B D O Active Not 55 KEY_STB_A D O Active Not 56 LINE_SZ D O On Off 57 NOT_RLY D O On Hook Off Hook 58 BELL D I OFF ON 59 RLY D O Off Hook On Hook 60 KEY_IN6 D O Non Key_In 61 KEY_IN5 D O Non Key_In 62 KEY_IN4 D O Non Key_In PIN Description I O Hi...

Page 76: ... VCC VCC 50 DOT_LCD_RESET D O Normal Reset 51 FLASH_SCK D O High Low 52 NC INT0 D O Normal 53 NC D O Normal 54 NC D O Normal 55 NC D O Normal 56 DOT_LCD_RS D O Data Instruct 57 DOT_LCD_RW_WR D O Read Write 58 DOT_LCD_E_RD D O Active Not 59 DOT_LCD_POWER _SW D O On Off 60 ANT_LED1 D O Off On PIN Description I O High High_Z Low 61 ANT_LED2 D O Off On 62 ANT_LED3 D O Off On 63 KEYSTROBE_E D O Not Act...

Page 77: ...21 EXPLANATION OF IC TERMINALS RF PART 21 1 IC701 77 KX TG5671BXS KX TGA560BXS ...

Page 78: ...21 2 IC801 Backside Terminal GND 78 KX TG5671BXS KX TGA560BXS ...

Page 79: ...21 3 IC851 Backside Terminal GND 79 KX TG5671BXS KX TGA560BXS ...

Page 80: ...Flux Specific Gravity 0 82 Type RMA lower residue non cleaning type Note See ABOUT LEAD FREE SOLDER PbF Pb free P 4 22 2 How to Remove the IC 1 Put plenty of solder on the IC pins so that the pins can be completely covered Note If the IC pins are not soldered enough you may give pressure to the P C board when cutting the pins with a cutter 2 Make a few cuts into the joint between the IC and its pi...

Page 81: ...esponding soldering foil 2 Apply flux to all pins of the FLAT PACKAGE IC 3 Solder the pins sliding the soldering iron in the direction of the arrow 22 4 How to Remove a Solder Bridge 1 Lightly resolder the bridged portion 2 Remove the remaining solder along the pins using a soldering iron as shown in the figure below 81 KX TG5671BXS KX TGA560BXS ...

Page 82: ... efficiently choose the right sized nozzle of the hot air desoldering tool that matches the IC package Be careful about the temperature of the hot air desoldering tool not to damage the PCB and or IC 23 3 How to Remove the IC 1 Heat the IC with a hot air desoldering tool through the P C Board 2 Pick up the IC with tweezers etc when the solder is melted completely Note Be careful not to touch the p...

Page 83: ...e IC the positioning should be done very carefully 3 Heat the IC with a hot air desoldering tool through the P C Board until the solder on IC bottom is melted Note Be sure to place it precisely controlling the air volume of the hot air desoldering tool 4 After soldering confirm there are no short and open circuits with visual inspection 23 5 How to Remove a Solder Bridge When a Solder Bridge is fo...

Page 84: ...24 CABINET AND ELECTRICAL PARTS BASE UNIT 84 KX TG5671BXS KX TGA560BXS ...

Page 85: ... 1 Attach the cushion No 126 to the exact location described above 2 This cable is fixed by welding Refer to HOW TO REPLACE THE HANDSET LCD P 20 3 Stick the magnetic shield No 119 to the exact location described above 85 KX TG5671BXS KX TGA560BXS ...

Page 86: ...26 ACCESSORIES AND PACKING MATERIALS Note 1 for Service 2 These pads are pieces of Ref No P4 ACCESSORY BOX 86 KX TG5671BXS KX TGA560BXS ...

Page 87: ...27 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 27 1 Base Unit 27 2 Handset 87 KX TG5671BXS KX TGA560BXS ...

Page 88: ...1103Z OPTIC CONDUCTIVE PARTS LED LENS CHARGE PS HB 13 PQSX10287Y KEYBOARD SWITCH TAM 14 PQSX10286U KEYBOARD SWITCH DIAL 15 PQMG10025Z RUBBER PARTS MIC 16 PQHA10023Z RUBBER PARTS FOOT CUSHION 17 PQHA10011Z RUBBER PARTS FOOT CUSHION 18 PQYF10602Y2 CABINET COVER PS HB 19 PQGT18851Z NAME PLATE 28 1 2 Main P C Board Parts Note 1 When you have replaced IC501 or IC601 adjust X501 Refer to Check and Adjus...

Page 89: ...ERJ2GEJ100 10 R533 ERJ2GEJ472X 4 7K R535 ERJ2GEJ102 1K R536 ERJ2GEJ222 2 2K R537 ERJ3GEYJ102 1K Ref No Part No Part Name Description Remarks R538 ERJ2GEJ472X 4 7K R673 ERJ2GEJ681 680 R675 ERJ2GEJ681 680 R677 ERJ2GEJ221 220 R679 ERJ2GEJ821 820 R681 ERJ2GEJ221 220 R683 ERJ2GEJ681 680 R701 ERJ2RKF103X 10K R732 ERJ2GEJ100 10 R733 ERJ2GEJ100 10 R735 ERJ2GEJ4R7 4 7 R742 ERJ2GEJ331 330 R744 ERJ2GEJ102 1K...

Page 90: ...Part Name Description Remarks C836 ECUV1A105KBV 1 C837 ECJ0EC1H101J 100P C842 ECUV1A105KBV 1 C843 ECUV1A474KBV 0 47 C844 ECJ0EC1H020C 2P C856 ECJ0EC1H020C 2P C857 ECJ0EB0J105K 1 C865 ECUE1A333KBQ 0 033 S C871 F1G1HR10A561 0 1P C873 ECJ0EC1H020C 2P C874 ECJ0EB0J105K 1 C881 ECJ0EC1H050C 5P C891 ECJ0EC1H050C 5P OTHERS MIC1 L0CBAB000052 MICROPHONE E1 PQMC10492Z MAGNETIC SHIELD FRAME E2 PQMC10491Z MAGN...

Page 91: ...61 B3AZB0000032 LED COILS L326 G1CR47J00005 COIL L327 G1CR47J00005 COIL L331 PQLQR2KB113T COIL S L332 PQLQR2KB113T COIL S L334 PQLQR2KB113T COIL S L711 MQLRF18NJFB COIL L782 G1C1R0KA0096 COIL Ref No Part No Part Name Description Remarks L871 MQLRF3N3DFB COIL C723 MQLRF2N7DFB COIL LCR FILTERS FL811 J0E5797B0001 LCR FILTER FL821 KNCFH165R8Z1 LCR FILTER FL881 J0E5797B0002 LCR FILTER COMPONENTS PARTS ...

Page 92: ...0C 3P C802 ECJ0EC1H220J 22P C803 ECJ0EB1C103K 0 01 Ref No Part No Part Name Description Remarks C804 ECJ0EC1H150J 15P C806 ECJ0EC1H100D 10P C809 ECJ0EB1C223K 0 022 C811 ECJ0EC1H020C 2P C821 ECJ0EC1H100D 10P C824 ECJ0EC1H100D 10P C832 ECJ0EC1H221J 220P C833 ECJ0EC1H101J 100P C834 ECJ0EB1C103K 0 01 C835 ECJ0EB1H471K 470P C836 ECUV1A105KBV 1 C837 ECJ0EC1H101J 100P C842 ECUV1A105KBV 1 C843 ECUV1A474KB...

Page 93: ... voltage line 2 The schematic diagrams may be modified at any time with the development of new technology 29 2 Handset SCHEMATIC DIAGRAM HANDSET_MAIN 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 93 KX TG5671BXS KX TGA560BXS ...

Page 94: ...ED KS_D INUSE_LED KI2 2APVCC ANT1 ANT0 UVCC UGND 1 2 1k R154 680 R673 C120 1000p 680 R675 FLASH_16M 1 RDY BUSY 2 RESET 3 WP 4 NC1 5 NC2 6 VCC 7 GND 8 NC3 9 NC4 10 NC5 11 CS 12 SCK 13 SI 14 SO 15 NC6 16 NC7 17 NC8 18 NC9 19 NC10 20 NC11 21 NC12 22 NC13 23 NC14 24 NC15 25 NC16 26 NC17 27 NC18 28 NC19 100n C531 CN661 7 KEYS_F CN661 17 ANS_LED CN661 32 NC CN661 19 2APVCC CN661 25 SEG6 CN661 20 COM1 CN...

Page 95: ...157 NC R156 D361 22V 1 2 DCP DCP2 DCM DCM2 L1T L1R C111 0 047 C112 0 047 10u 16V C166 Q141 1 2 3 33u L101 33u L102 K0 68 C113 Q156 NC 1 2 3 Q362 1 3 2 47k R362 NC R363 Q142 1 2 3 Q143 NC 1 2 3 C165 K0 047 C163 K4700P 50V C162 J100P C167 K0 22 C308 K0 1 K680P 50V C122 K680P 50V C121 K0 047 C184 C185 K0 018 NC C171 NC C174 NC C175 NC C177 NC C173 NC C183 NC C182 NC C181 D101 4 3 1 2 22u 6 3V C176 CN...

Page 96: ...10P C824 J100P C833 FL821 5 8GHz_BPF 1 2 3 4 C5P C881 C836 K1uF 1608 5 6k R832 3 3k R834 L821 NC NC R862 NC R812 NC R814 270 R822 270 R824 18 R823 C5P C891 NC R873 IC851 5 8G_PA 4 GND_ISO3 5 ANT2 6 GND_ISO4 7 VDD_LNA1 8 GND_LNA1 9 VDD_LNA2 10 GND_LNA2 11 NC 12 LNA_OUT 13 LNA_GAIN 14 LNA_EN 15 ANTSEL_B 16 ANTSEL_A 17 PA_EN 18 PA_IN 19 VDD_PA 20 GND_ISO5 21 PA_OUT 22 GND_ISO6 23 GND_ISO7 24 TRSW_IN ...

Page 97: ...SYN_LE2 SYN_DATA SYN_LE1 SYN_CLK TX_DATA RX_EN TX_EN RX_DATA SYN_OUT SHCTRL RF_RESET OSC_IN RX_GAIN GND NC C769 NC C768 NC C765 NC C766 NC C846 NC C736 NC C845 J100P C837 K1uF 1608 C842 L711 18nH L724 NC L860 NC C723 2 7nH C701 4 7uF 2125 C843 K0 47 1608 C763 K0 47 1608 C762 NC 1608 ANT0 ANT1 SHIELD NC C742 L768 NC IC701 2 4G_RF 1 TX 2 GND_ISO1 9 VCC_IF 3 GND_ISO2 4 RX 5 VCC_RF 6 VCC_IF2 7 TESTP 8...

Page 98: ...LED 2 KEYS_A 3 KEYS_B 4 KEYS_C 5 KEYS_D 6 KEYS_E 7 KEYS_F 8 KEYIN6 9 KEYIN5 10 KEYIN4 11 KEYIN3 12 KEYIN2 13 KEYIN1 14 INT_LED 15 CHG_LED 16 INUSE_LED 17 ANS_LED 18 MSG_LED 19 2APVCC 20 COM1 21 COM2 22 SEG3 23 SEG4 24 SEG5 25 SEG6 26 SEG7 27 SEG8 28 SEG9 29 SEG10 30 SEG11 31 SEG12 32 NC LED905 RED SP PHONE MSG_LED ANS_LED INUSE_LED CHG_LED INT_LED SP_LED 2APVCC LED907 NC ANS NC KX TG5671 SCHEMATIC...

Page 99: ...Memo 99 KX TG5671BXS KX TGA560BXS ...

Page 100: ...257 1 2 LED256 1 2 Amber LED255 1 2 TXO RXE TXE RXI TE BCK NC C219 NC RA251 1 2 3 4 5 6 7 8 R A YG LED261 Y Green_Amber_Red 1 2 3 4 0 1uF CA274 1 2 3 4 5 6 7 8 Q261 1 2 3 4 5 Q255 1 2 3 4 5 0 LEFT UP SP TALK 1 2 3 4 5 6 7 8 9 SYA DOWN NEXT BACK MENU RIGHT FLASH HOLD PAUSE OFF 0 47uF CA271 1 2 3 4 C273 K0 1 C272 K0 47 3L_DOT_LCD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 120 RA255 1 2...

Page 101: ... 1 2 D352 1 2 D354 1 2 6 3V 3 3uF C321 K0 1 C379 K0 1 C377 K6800P C333 D10P C202 D10P C201 IC201 4 RSSI 5 XIN 6 XOUT 7 VDD 8 VCCIN 9 GND 10 GND 11 GND 12 GND 13 RST 14 FL_RST 15 FL_DO 16 FL_DI 17 FL_CS 18 BL_LED 19 SYN_OUT 20 TX_DATA 21 PA_CONT 22 SYN_LE2 29 VCC 30 SYN_LE1 31 SYN_CLK 32 SYN_DATA 33 RX_EN 34 TX_EN 35 RX_GAIN 36 RX_DATA 37 NC 38 CHG_DET 39 NC 40 NC 41 NC 42 NC 43 NC 44 DB4 45 DB5 46...

Page 102: ... 12 VARGND 13 PLL_BYP 14 VCC_PLL 15 2G4_OUT 16 GND_ISOL3 17 2G4_IN 18 VCC_TXRX 19 SYN_CLK 20 SYN_EN 21 SYN_DATA 22 RXEN 23 TXEN 24 VCC_PA1 1 VCC_PA2 2 TX 3 GND_ISOL1 IC851 5 8G_PA 4 GND_ISO3 5 ANT2 6 GND_ISO4 7 VDD_LNA1 8 GND_LNA1 9 VDD_LNA2 10 GND_LNA2 11 NC 12 LNA_OUT 13 LNA_GAIN 14 LNA_EN 15 ANTSEL_B 16 ANTSEL_A 17 PA_EN 18 PA_IN 19 VDD_PA 20 GND_ISO5 21 PA_OUT 22 GND_ISO6 23 GND_ISO7 24 TRSW_I...

Page 103: ...E2 SYN_DATA SYN_LE1 SYN_CLK TX_DATA RX_EN TX_EN RX_DATA SYN_OUT SHCTRL RF_RESET OSC_IN RX_GAIN GND NC C769 NC C768 NC C765 NC C766 NC C846 NC C736 NC C845 J100P C837 NC C742 K1uF 1608 C842 L711 18nH L724 NC L860 NC C723 2 7nH C701 4 7uF 2125 C843 K0 47 1608 C763 K0 47 1608 C762 NC 1608 L768 NC C0 5P C859 C0 5P C858 IC701 2 4G_RF 1 TX 2 GND_ISO1 9 VCC_IF 3 GND_ISO2 4 RX 5 VCC_RF 6 VCC_IF2 7 TESTP 8...

Page 104: ...Memo 104 KX TG5671BXS KX TGA560BXS ...

Page 105: ...612 8 5 1 4 R611 C612 R594 C681 C686 C687 C685 C684 C689 C688 C504 C679 C677 RA500 RA501 C503 C663 C381 D380 C332 4 1 5 8 C331 C307 C304 R300 RST R422 R423 R421 R373 Q143 R371 R303 C308 R301 R364 R365 C303 R341 R340 R342 R304 R305 5 4 1 3 R372 R343 C342 C422 C423 25 1 51 75 26 50 76 100 C611 R460 R454 R453 MIP2 MIN2 R452 C453 R533 R459 R601 C601 R171 C172 R122 R121 R134 C121 C122 C120 C160 C162 C1...

Page 106: ...RGER 5661 71 72 5636 51 52 5631 32 33 34 5621 22 23 CHARGER DCM2 DCM DCP DCP2 L1R L1T 1 1 2 2 3 4 KIN3 MIC MIC MIP MIN JC JG URX2 UTX2 RED 2APVCC KI1 KSC CHG KSD INUSE KI2 JS R Y G B JI JO KX TG5671 CIRCUIT BOARD Base Unit_Main Flow Solder Side View KX TG5671BXS KX TGA560BXS 106 ...

Page 107: ...ED905 SP_LED PQUP11299Z PbF FLS MUTE LED904 MSG_LED L5DC01 SP1 SP2 4 7 5 8 0 6 1 1 12 1 CN901 32 2 3 9 CONF INT HOLD SP LED907 LED909 INT_LED MEMO DOWN UP CHK ERASE ANS REC STOP AUTO MSG VM LEFT RIGHT 2APVCC KX TG5671 CIRCUIT BOARD Base Unit_Operation Component View A KX TG5671BXS KX TGA560BXS 107 ...

Page 108: ...36 2 Flow Solder Side View PQUP11299Z PbF DON T ATTACH LCD HOLDER ON THIS SIDE KX TG5671 CIRCUIT BOARD Base Unit_Operation Flow Solder Side View A KX TG5671BXS KX TGA560BXS 108 ...

Page 109: ...2 C766 C761 C841 C846 C842 C844 C843 C845 C874 C873 C811 C801 R824 R813 R812 R814 R873 R823 R822 R833 R701 R751 R752 R724 R747 R735 R864 R809 R742 R744 R861 R865 R863 R862 R832 R834 C824 C851 C852 C853 C863 C864 C821 L821 L871 L711 L768 L860 L724 L782 C802 C807 C865 C861 C862 C806 C713 C809 C707 C711 C837 C712 C715 C773 C742 R732 R733 C736 C737 C746 C745 SHIELD FL891 IC701 IC801 1 1 1 IC851 IC841 ...

Page 110: ...Memo KX TG5671BXS KX TGA560BXS 110 ...

Page 111: ... R354 C241 C209 C242 R241 R205 R207 R206 C206 R209 R242 R353 C354 C377 C303 C304 C307 C208 C317 C226 R226 C243 R317 R333 C333 C336 C305 R222 R228 R201 C202 C224 R224 R223 D223 C222 C221 C212 C214 C215 C201 C219 R227 R234 R247 R232 R246 C227 C246 C322 C321 C334 L334 C332 R331 R263 R262 R261 R323 R324 L332 L327 L326 D326 D327 L211 C262 C371 C272 C273 C386 R272 R273 C361 L331 D323 D324 C335 R231 C231...

Page 112: ...56 LED255 PbF TGA56 R KX TGA56 R LCD LEFT OFF A UP TALK MENU BACK NEXT DOWN PAUSE SP 1 2 3 4 5 6 7 8 9 0 MIC MIC MIC HOLD FLASH RIGHT LED252 LED254 LED251 LED253 KX TGA560 CIRCUIT BOARD Handset_Main Flow Solder Side View KX TG5671BXS KX TGA560BXS 112 ...

Page 113: ...6 C722 C723 C717 C716 C804 C714 C708 C762 C766 C761 C841 C846 C842 C844 C843 C845 C874 C873 C811 C801 R824 R813 R812 R814 R873 R823 R822 R833 R701 R751 R752 R724 R747 R735 R864 R809 R742 R744 R861 R865 R863 R862 R832 R834 C824 C851 C852 C853 C863 C864 C821 L821 L871 L711 L768 L860 L724 L782 C802 C807 C865 C861 C862 C806 C713 C809 C707 C711 C837 C712 C715 C773 C742 R732 R733 C736 C737 C746 C745 KX ...

Page 114: ...114 KX TG5671BXS KX TGA560BXS A I N KXTG5671BXS KXTGA560BXS ...

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