Panasonic KX-TG4771B, Service Manual

Page 1: ...less Answering System B Black Version for U S A Portable KX TGA470B KX TG4771B Base Unit Caller ID Compatible Charger Unit Model No Base Unit Portable Charger Unit Expandable KX TG4771 1 TG4771 1 TGA470 1 Up to 6 KX TG4772 1 TG4771 2 TGA470 2 Up to 6 KX TG4773 1 TG4771 3 TGA470 3 Up to 6 KX TGA470 1 TGA470 1 Configuration for each model KX TGA470 is also an optional accessory which contains a port...

Page 2: ...tic Diagrams Circuit Board Diagrams Exploded Views and Replacement Parts List It is essential that these critical parts should be replaced with manufacturer s specified parts to prevent shock fire or other hazards Do not modify the original design without permission of manufacturer IMPORTANT INFORMATION ABOUT LEAD FREE PbF SOLDERING If lead free solder was used in the manufacture of this product t...

Page 3: ...ructions 47 11 3 How to Replace the Portable LCD 48 12 Measurements and Adjustments 49 12 1 Equipment Required 49 12 2 The Setting Method of JIG 49 12 3 Adjustment Standard Base Unit 53 12 4 Adjustment Standard Charger Unit 54 12 5 Adjustment Standard Portable 55 12 6 Things to Do after Replacing IC or X tal 56 12 7 Frequency Table 58 13 Miscellaneous 59 13 1 How to Replace the LLP Leadless Leadfr...

Page 4: ...oduct you have purchased Please call 1 800 8 BATTERY 1 800 822 8837 for information on how to recycle this battery 2 2 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 ...

Page 5: ...n Bi Please check the manufacturer s specific instructions for the melting points of their products and any precautions for using their product with other materials The following lead free PbF solder wire sizes are recommended for service of this product 0 3 mm 0 6 mm and 1 0 mm 2 3 Discarding of P C Board When discarding P C Board delete all personal information such as telephone directory and ca...

Page 6: ...F 104 F 20 80 relative air humidity dry Approx 111 mm x 186 mm x 197 mm Approx 650 g Rechargeable Ni MH battery AAA R03 size 1 2 V 550 mAh Super Heterodyne PLL synthesizer Quadrature Discriminator 13 824 MHz 83 Hz Frequency Modulation 40 bit Tone DTMF Pulse Up to 48 digits Up to 24 digits Phonebook 11 days at Standby 13 hours at Talk 0 C 40 C 32 F 104 F 20 80 relative air humidity dry Approx 174 m...

Page 7: ...erformed Portable doesn t make up duplex in no free RF channels because of interference 1 Dummy Bearer Base unit sends Dummy data to the all stand by state portables Portables receive that data for synchronization and monitoring request from the base unit Base unit doesn t send Dummy bearer in no free RF channels because of interference 1 Note 1 It is a feature under FCC 15 regulation and for inte...

Page 8: ...to digital data RXDATA BBIC IC1 converts RXDATA into a voice signal and outputs it to speaker Transmission Portable A voice signal from microphone is encoded to digital data and converted into a 1 9 GHz modulated radio signal by BBIC IC1 The RF signal after which is amplified in BBIC is fed to an antenna Base unit As for a base unit RF RF signal is received in two antennas BBIC IC501 compares RF s...

Page 9: ..._MIC_ON IC904 X5 X tal 13 824MHz XOUT XIN IC501 Handset Speaker Mic LCD_CS LCD_CD SPI2_CLK SPI2_DO DOUBOUT VCCA 3 0V SPI_CLK SPI_DO SPI_DI SPI_DI IC601 EEP_SCL EEP_SDA EEP_WP EEP_SCL EEP_SDA EEP_WP SPI_CS SPI_CS SPI_CLK SPI_DO SPI2_CLK SPI2_DO KEYS_A F KEYIN_1 6 LCD_RST IC611 BBIC EXPDR_CS EXPDR_CS EXPDR_CLR EXPDR_CIR SPOUTP SPOUTN VCC LED VDD VCC LCD backlight VCC 3 5V IC302 3 5V IC902 Ringer SW ...

Page 10: ...10 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 4 3 Block Diagram Base Unit_RF Part KX TG4771 4772 4773 BLOCK DIAGRAM Base Unit_RF Part DA801 ANT2 ANT1 TXON RXON RXp RXn ANT2 ANT1 TXp TXn ...

Page 11: ...ded message The BBIC implements synthesized Voice utilizing the built in speech detector and a Flash Memory which stored the vocabulary Caller ID demodulation The BBIC implements monitor and demodulate the FSK DTMF signals that provide CID information from the Central Office Digital Switching The voice signal from telephone line is transmitted to the portable or the voice signal from the portable ...

Page 12: ...ulated from VBAT by Doubler of BBIC Circuit Operation 5 5V VBAT RSTN Reset pin 54 VBAT pin 10 pin 57 pin 9 pin 15 IC501 IC302 IC904 IC601 BBIC DOUBLER OUT For peripherals VDDC 1 2V AC Adaptor 3 0V REGULATOR FLASH IC611 EEPROM 3 0V STM CKM Receive Amp RF Part LCD BLT SHIFT REGISTER R933 Q911 Q906 ANS LED MSG LED SP LED Startmonitor IC501 57pin VDDC 1 2 V VBAT Reset RSTN IC501_54 pin BBIC chip initi...

Page 13: ...cuit prevents the TX signal from feeding back to RX signal As for this unit TX signal feed back from Q161 is canceled by the canceller circuit of BBIC 4 4 6 Parallel Connection Detect Circuit Auto Disconnect 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 conne...

Page 14: ...modulated in an FSK Frequency Shift Keying format Data 1 is a 1200 Hz sine wave and data 0 is a 2200 Hz sine wave There are two types of the message format which can be received i e the single message format and plural message format The plural message format allows to transmit the name and data code information in addition to the time and telephone number data Also the telephone exchange service ...

Page 15: ...hen FSK data and MARK data pass the following route Telephone Line P101 C121 C122 R121 R122 IC501 25 24 If the unit deems that a telephone connected in parallel is in use ACK is not returned even if CAS is received and the information for the second and subsequent callers is not displayed on the portable display CAS CAS CPE Alerting Signal Dual Tone of 2130 Hz 2750 Hz 15 dBm 900 ohm load 80 5 ms M...

Page 16: ...UTN CKM STM CKM STM BBIC RESET CHG_CTL CHG_DET WP CLK DATA KEYSTOROBE_A E KEYIN_1 5 CHARGE Q3 MIC Receiver Headset Jack CN4 LED Monitor SP LCD CHARGE PUMP IC4 KEYS RF part ANT1 X1 13 824 MHz EEPROM VBAT BATTERY Q5 LED LCD RSTN BELL VBAT VBAT 3V 4 0V VBAT RXn RXp RXON TXp TXn TXON KX TGA470 BLOCK DIAGRAM Portable KEY_LED CP_OFF Q6 LED KEY 4V ...

Page 17: ...17 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 4 6 Block Diagram Portable_RF Part KX TGA470 BLOCK DIAGRAM Portable_RF Part DA801 TXON RXON RXp RXn ANT TXp TXn ...

Page 18: ...d e g ID user setting 4 7 2 Power Supply Circuit Reset Circuit Circuit Operation When power on the Portable the voltage is as follows BATTERY 2 2 V 2 6 V BATT F1 BBC1 IC1 10 pin The Reset signal generates IC1 54 pin and 1 8 V Startmonitor IC1 57pin VDDC 1 2 V VBAT Reset RSTN IC1_54 pin BBIC chip initialize CKM STM GND BATTERY 2CELL BBIC 3 0V 3 0V DOUBLER OUT Charge Pump For all peripherals 3 0V 3 ...

Page 19: ...er to Fig 101 in Power Supply Circuit Reset Circuit P 12 4 7 4 Battery Low Power Down Detector Circuit Operation Battery Low and Power Down are detected by BBIC which check the voltage from battery The detected voltage is as follows Battery Low Battery voltage V Batt 2 35 V 100 mV The BBIC detects this level and starts flashing Power Down Battery voltage V Batt 2 1 V 50 mV The BBIC detects this le...

Page 20: ...ge control is executed at Portable side so that the operation when using charger is also controlled by Portable Refer to Circuit Operation Portable P 18 The route for this is as follows DC pin of J1 F1 R1 R2 D1 CHARGE pad Portable CHARGE pad DC pin of J1 D1 R2 R1 TP1 TP2 J1 AC Adaptor F1 ...

Page 21: ...㸢 ROUTE 㸢 OUT GREETING RECORDING GREETING PLAY TO TEL LINE ICM RECORDING ICM PLAY TO SPEAKER DTMF SIGNAL TO TEL LINE CALLER ID BELL DETECTION PORTABLE MIC R73 74 C11 13 RA4 IC1 22 23 PORTABLE_RF_TX_ROUTE ANT IC601 IC501 73 74 28 C184 Q161 Q902 D101 P101 T R TEL LINE ANT BASE_UNIT_RF_RX_ROUTE IC501 46 47 73 74 IC601 MIC C918 C919 R946 IC501 23 22 28 C184 Q161 Q902 D101 P101 T R TEL LINE T R TEL LIN...

Page 22: ... PORTABLE RF TX_ROUTE PORTABLE RF RX_ROUTE BASE UNIT RF TX_ROUTE BASE UNIT RF RX_ROUTE IC1 44 45 L809 C812 DA801 C803 C801 ANT ANT C801 C803 DA801 C826 IC1 46 47 IC501 44 45 C812 L809 DA801 C895 DA802 C894 C893 ANT1 ANT2 ANT1 ANT2 C894 C893 DA802 C895 DA801 C826 IC501 46 47 Note inside of Portable ...

Page 23: ...perating Instructions Instruction book on TSN Server 6 Installation Instructions Refer to the Operating Instructions Note You can download and refer to the Operating Instructions Instruction book on TSN Server 7 Operating Instructions Refer to the Operating Instructions Note You can download and refer to the Operating Instructions Instruction book on TSN Server ...

Page 24: ...ss to return to standby mode After that turn the base unit power off and then power on Note To enter Set dial mode press or at Set tel line 6 Enter 㧖 㧖 New Data 1 4 Select Write EEP using or V then press or Default Data New Data INT Caller List V V Initial setting BACK V Set tel line BACK BACK BACK CLEAR V Set dial mode Select Set tel line using or V then press or Service Mode Read EEP Write EEP S...

Page 25: ...w Items Address Default Data New Data Remarks Frequency 00 07 00 08 00 01 Use these items in a READ ONLY mode to confirm the contents Careless rewriting may cause serious damage to the computer system ID 00 02 00 06 Given value Desired Number hex Input Keys Desired Number hex Input Keys 0 0 A Flash 0 1 1 B Flash 1 C Flash 2 D Flash 3 E Flash 4 9 9 F Flash 5 ...

Page 26: ...ss a long confirmation beep will be heard 8 Press OFF to return to standby mode After that remove and reinsert the batteries Press the Power button for about 1 second if the power is not turned on 6 Enter 㧖 㧖 New Data 1 4 Select Write EEP using or V then press or M _ _ _ _ _ _ Set Addr BACK Default Data Set Addr M CLEAR New Data Set Addr M CLEAR Caller List V INT SELECT PLAY V Ringer setting BACK ...

Page 27: ...firm the contents Careless rewriting may cause serious damage to the Portable Items Address Default Data New Data Possible Adjusted Value MAX hex Possible Adjusted Value MIN hex Remarks Battery Low 00 12 00 13 00 00 2 Frequency 00 07 00 08 00 01 ID 00 02 00 06 Given value Desired Number hex Input Keys Desired Number hex Input Keys 0 0 A Flash 0 1 1 B Flash 1 C Flash 2 D Flash 3 E Flash 4 9 9 F Fla...

Page 28: ...B 9 Service Mode 9 1 How to Clear User Setting Portable Only Portable Press 2 5 8 simultaneously until a beep sound is heard Then single portable is initialized The contents of user setting are reset to factory default Usage time is not cleared 0 ...

Page 29: ...ator in the service center In this case try to change the Auto disconnect activation time and Vox level How to change the Auto Disconnect activation time and VOX level P 32 item A and B Power ON Base Unit OK FLOW CHART Check Power OK Playback Pre Message Check Playback Record OK Check Record Range Check the RF part Portable Voice Transmission Check Portable Transmission Portable Voice Reception OK...

Page 30: ... 1 Is output voltage of AC adaptor 5 5 V YES Check AC Adaptor Check VDDC 1 2 V Test Point VDDC OK Check Power Supply Circuit NO NO NO NO RSTN Reset High YES Check Reset Circuit Check Xtal CLK 13 824 MHz YES Check X501 Check BBIC Check Power Supply Circuit Reset Circuit Check X1 C8 C9 Is the voltage of TP 3 0 V about 3 0 V Is the voltage of TP VBAT 2 3 V more Check the battery and around BATT and B...

Page 31: ...n Detect Circuit Auto Disconnect Circuit P 13 Note Flash Memory is IC601 BBIC is IC501 Check Bell signal OK Check Telephone Line Interface Bell Does the unit catch line YES Check Telephone Line Interface OFF HOOK Check Line In Pin 16 of BBIC Check ICM Recording in Signal Route NO OK Check Auto Disconnect Circuit OK Check Parallel Connection Detection Circuit OK Check BBIC and Flash Memory NO NO ...

Page 32: ... key at standby Mode and key Note The set must power on and be linked 2 Press 9 0 0 0 3 Press 7 3 1 4 Then enter the below last digit 5 Back to standby mode automatically after step 4 You can hear beep sound which is a confirmation tone Service ready 7 3 1 CLEAR Service ready BACK LCD H S Enter number BACK LCD H S last digit 0 Auto disconnect CPC enable 㨇default㨉 1 1 Auto disconnect CPC disable 2 ...

Page 33: ...tivity of VOX level Therefore the recording of TAM is not turned off during a detection 1 2 are same as A 3 Press 5 1 1 4 Then enter the below last digit 5 Back to standby mode automatically after step 4 You can hear beep sound which is a confirmation tone Service ready 5 1 1 CLEAR last digit 0 default setting normal 1 6dB up ...

Page 34: ...ly after step 4 You can hear beep sound which is a confirmation tone 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 line isn t disconnected Is BBIC IC1 34 high at charge state Check Charge Circuit Check Power of Portable Is Check Power OK NO NO YES Check Charge Circuit of Charger Unit Ch...

Page 35: ...R then check the TP_CKM IC501 57pin To adjust frequency send command SFR until the frequency counter becomes13 824 MHZ 83HZ Check around Power Supply Circuit Adjust 3 0V voltage to 3 0 V Does Base Unit make link with normal working Portable Check around X501 and RF module and adjust clock frequency NO NO NO NO YES YES Is the voltage of VBAT about 3 4 V Check the RF part Does the RF clock CLK oscil...

Page 36: ... To adjust frequency send command SFR until the frequency counter becomes13 824 MHz 83 HZ Check around Power Supply Circuit Reset Circuit Adjust 3 0V Vottage to 3 0 V Does Portable make link with Base Unit Correct working unit Check around X1 and RF module and adjust clock frequency NO NO NO NO Is the voltage of TP VBAT about 2 2 2 8 V Is the voltage of TP VDDC about 1 2 V YES YES YES YES Is the v...

Page 37: ... 2 2 a Re register regular P Normal mode to base unit to be checked If this operation fails in some ways the base unit is defective b Re register portable to be checked to regular BU Normal mode If this operation fails in some ways the portable is defective Base unit is defective Portable is defective START Registration of Regular P to base unit Registration of portable to Regular BU other checkin...

Page 38: ... 39 Please refer to the each item Note 1 Refer to Check Link P 35 Start Link confirmation Normal 1 Control signal confirmation X tal Frequency confirmation TX confirmation Range confirmation Normal TEST RANGE Check Check BBIC interface parts RF Block BBIC on BU HS P C B Adjust X tal Frequency 1 Check TX Block GOOD 5 2 3 4 OK OK OK NG NG NG NG NG OK OK ...

Page 39: ...Check X tal Frequency 13 824000 MHz 83 Hz Check X tal Frequency 13 824000 MHz 83 Hz 3 TX confirmation P Mode P_Burst Mode 1 BS Mode BS_Burst Mode 2 1 Remove wire antenna 2 and connect spectrum analyzer to TP 3 2 Confirm TX power whether spec is satisfied Power 16 0 dBm 20 5 dBm 1 Connect spectrum analyzer to TP 4 2 Confirm TX power whether satisfied spec Power 16 0 dBm 25 0 dBm 4 Range Confirmatio...

Page 40: ...CHART1 3 At distance of about 20m between P and BU Link OK TX Power of the P is OK No Link TX Power of the P is NG Range Confirmation RX TEST RX sensitivity check P BU setting Checked unit High TX power 1 Regular unit Low TX power 1 1 Register Regular P to BU to be checked 2 Set TX Power of the BU and the Regular P according to CHART1 3 At distance of about 20m between P and BU Link OK RX Sensitiv...

Page 41: ...it until a long beep sounds Note L While registering Base in registering is displayed on all registered portables L When you purchase an additional portable referto the additional portable s installation manual for registration MENU 1 3 0 If all registered portables start ringing press LOCATOR again to stop then repeat this step A portable can cancel its own registration to the base unit or other ...

Page 42: ... Cross Reference Signal Route P 21 10 1 13 Check SP phone Reception Cross Reference Signal Route P 21 10 1 14 Check Corded Handset Transmission Cross Reference Signal Route P 21 10 1 15 Check Corded Handset Reception Cross Reference Signal Route P 21 Check MIC of portable Check portable Tx in Signal Route Check speaker of portable Check portable Rx in Signal Route YES Did bell ring Message indicat...

Page 43: ...nd Assembly Instructions 11 1 Disassembly Instructions 11 1 1 Base Unit Ԙ Remove the 6 screws to remove the cabinet cover 6 screws Ԙ 1 screw solders ԙ Cabinet Cover Parallel wire Main P C Board ԙ Remove 1 screw Parallel wire and solders to remove the main P C Board ...

Page 44: ...771B KX TG4772B KX TG4773B KX TGA470B Ԛ Unhook the hook and remove the 2 screws to remove the jack holder ԛ Remove the 8 screws to remove the Operation P C Board 8 screws ԛ Hook Operation P C Board 2 screws Ԛ Ԛ ...

Page 45: ...ove the solders and tape Remove the 2 screws to remove the 2 charge terminals ԝ Ԟ Remove the screw to remove the main P C board Main P C board Ԝ Ԝ Screw Ԟ 2 charge terminals ԝ ԝ 2 screws Cabinet cover Cabinet body Cabinet cover 2 screws Ԙ Solders Tape Insert a plastic card Ex Used SIM card etc between the cabinet body and the cabinet cover then pull it along the gap to open the cabinet ...

Page 46: ...771B KX TG4772B KX TG4773B KX TGA470B 11 1 3 Charger Unit Ԙ Remove the screw to remove the cabinet cover ԙ Remove the solders to remove the 2 charge terminals Ԙ Screw ԙ Solders Main P C board 2 charge terminals ...

Page 47: ...70B 11 2 Assembly Instructions 11 2 1 How to Replace the Base unit LCD 㽲 REFLECTOR SHEET PROCESS IT AS SHOWN IN FIGURE PROCESS IT AS SHOWN IN FIGURE 㽳 DIFFUSION SHEET LCD 㽴 㽵 㽶 PROCESS IT AS SHOWN IN FIGURE REVERSE LED P C B LCD HOLDER LCD PLATE ...

Page 48: ... is not damaged Fit the heatseal of a new LCD Rubber of Soldering Iron Part No PQZZ430PRB Tip of Soldering Iron Part No PQZZ430PIR Heatweld with the tip of the soldering iron about 5 to 8 seconds in case of 60W soldering iron New LCD 0 2 mm 0 2 mm P C board If interval tolerance between center lines is less than 0 2 mm it is o k Horizontal Interval Tolerance Vertical Interval Tolerance OK NG NG NG...

Page 49: ...ust like a mass production 12 2 The Setting Method of JIG Preparation Serial JIG cable PQZZ1CD300E PC which runs in DOS mode Batch file CD ROM for setting PNZZTG4771M Note If you have the JIG Cable for TCD500 series PQZZ1CD505E change the following values of resistance Then you can use it as a JIG Cable for both TCD300 and TCD500 series It is an upper compatible JIG Cable 12 2 1 Connections Base U...

Page 50: ...TT and BATT Connect the JIG cable GND black to GND Connect the JIG cable UTX yellow to UTX and URX red to URX Note COM port names may vary depending on what your PC calls it DC Power or Battery 2 GND black 3 To Serial Port com port 1 JIG Cable PC URX red 3 UTX yellow Portable P C board 1 BAT BAT VBAT UTX GND URX ...

Page 51: ... messages appear change the port number or 䇭check the cable connection 䊶If any value appear go to next step 7 Type DOSKEY then press the Enter key Example C Documents and Settings D D CD PNZZTG D PNZZTG SET_COM X D PNZZTG READID 00 52 4F A8 A8 D PNZZTG DOSKEY D PNZZTG Example error happens C Documents and Settings D D CD PNZZTG D PNZZTG SET_COM X D PNZZTG READID ޓ CreateFile error ERROR 10 Can t o...

Page 52: ...ddress wreeprom Write the data of EEPROM Type wreeprom 01 23 45 01 23 is address and 45 is data to be written bs_burst Base unit outputs RF power in burst test mode on antenna 2 Type bs_burst tx_high Keep TX power high Type tx_high tx_low Keep TX power low Type tx_low Command name Function Example rdeeprom Read the data of EEPROM Type rdeeprom 00 00 FF and the data from address 00 00 to FF is read...

Page 53: ...6 UTX STM CKM P15 IC601 Q911 MIC1 L900 L901 L902 L903 IC611 Q1011 R11 1 R11 2 R11 3 R11 4 R505 R506 R121 R122 D472 D473 VBAT R1011 R1013 R900 R901 R906 C11 1 C11 2 C11 3 C500 TMS VDDC R929 L1R C120 L1T C121 C122 C123 C124 R932 R933 C510 R934 C511 C512 C513 C514 C516 C900 C901 C902 C903 C904 C905 R941 C906 5 5V C521 R945 C523 R178 C525 C331 C532 C151 ANT1 TP C929 C930 C933 C938 C939 C940 C942 D113 ...

Page 54: ... KX TGA470B 12 4 Adjustment Standard Charger Unit When connecting the simulator equipment for checking please refer to below 12 4 1 Bottom View D1 R1 F1 R2 A PNLB2081Z IG PbF Charge Charge 12 2 W Digital Volt Meter DC POWER DC 5 5 V GND ...

Page 55: ...2 C25 C 8 1 1 L 8 0 9 R806 C825 IC1 C826 D A 8 0 1 C863 C46 C803 ANT_TP ANT_Short GND ANT_Short C897 R69 R66 C69 E_SDA E_SCL E_WP R68 RTCK ATSTN TEST C44 C43 R1 C52 L9 R24 C1 C7 F1 L6 R8 R4 C35 Q9 CHG_CTRL R6 R9 D3 R73 D4 R74 C89 R34 C88 C96 C97 C39 RA4 C51 L3 C34 C17 C98 C68 C814 C24 C812 C810 C806 C822 C45 ATSTP CKM STM GND_J TMS TCK R67 TDI RSTN R807 C805 C802 C93 LED12 LED10 LED11 C91 C92 SID ...

Page 56: ...thod of JIG P 49 Items How to download Required adjustment EEPROM IC611 Adjusted parameter data is stored in memory country version batch file default batch file etc 1 Change the address 0001 of EEPROM to AA to download the data 2 Default batch file Execute the command default bat 3 Country version batch file Execute the command TG4771US_US_RevXXX_YYY bat 1 4 Clock adjustment X tal X1 System clock...

Page 57: ...n batch file default batch file etc 1 Default batch file Execute the command default bat 2 Default batch file remaining Execute the command TGA470US_DEF_RevXXX_YYY bat 2 3 Country version batch file Execute the command TGA470US_US_RevXXX_YYY bat 2 4 Clock adjustment 5 2 35 V setting and battery low detection X tal X1 System clock 1 Apply 2 6V between BATT and BATT with DC power 2 Input Command sen...

Page 58: ...8 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 12 7 Frequency Table Ch hex TX RX Frequency MHz Channel 0 00 1928 448 Channel 1 01 1926 720 Channel 2 02 1924 992 Channel 3 03 1923 264 Channel 4 04 1921 536 ...

Page 59: ...C 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 13 1 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 th...

Page 60: ...e When placing the 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 Solder Soldering Iron P C Board Land IC Sold...

Page 61: ...d damage the PCB foil Flux Recommended Flux Specific Gravity 0 82 Type RMA lower residue non cleaning type Note See About Lead Free Solder PbF Pb free P 4 13 2 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...

Page 62: ...curacy of the IC setting with the corresponding 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 13 2 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 ...

Page 63: ...0JCDD000001 PNWI2TG4771H PNWI1TG4771H C1CB00002903 B C E DSC7003S0L Reverse View 67 66 45 1 22 88 44 22 C2HBCY000106 Cathode Anode Anode Cathode 1 8 16 9 C0JBAQ000247 B1CCBR000001 B1GDCFJJ0001 PQVDMD5S Anode Cathode B0ECKM000008 Anode Cathode B3AFB0000211 B0DDCD000001 E C B Anode Cathode Anode 1 3 2 4 5 6 1 4 8 5 PNWITGA470BR Anode Cathode B0BC4R3A0006 C0DBZYY00357 C B E B1ADCF000040 DRC9113Z0L 2S...

Page 64: ... may be modified at any time with the development of new technology 14 1 3 Charger Unit Charger Unit Notes 1 DC voltage measurements are taken with voltmeter from the negative voltage line 2 The schematic diagrams may be modified at any time with the development of new technology Important Safety Notice Components identified by mark have special characteristics important for safety When replacing ...

Page 65: ...65 KX TG4771B KX TG4772B KX TG4773B KX TGA470B Memo ...

Page 66: ... RCVRn RCVRp HANDSETMICp HANDSETMICn HS SP P HS MIC N HS MIC P R901 10 AG601 AG601 AG601 L AG601 L900 L903 L902 L901 2 0 9 C u 1 R900 10 R903 100 C907 C N C904 1000p C905 1000p C906 330p R904 0 0 1 HS SP N p R V C R n R V C R HANDSETMICp HANDSETMICn 3 K O O H 2 K O O H 1 K O O H IC904 1 QB 2 QC 4 1 SI 5 1 QA 3 QD 6 1 VCC 4 QE 3 1 RCLR 5 QF 2 1 RCK 6 QG 1 1 SCK 7 QH 0 1 SCLR 8 GND 9 QH V 0 3 C932 0...

Page 67: ... 7u C928 u 1 D N G R938 3 3k R941 18k V 0 3 1 0 3 F A 3 RINGER RINGER R945 2 7k 1 2 3 4 R946 2 7k 1 2 3 4 C934 p 0 0 0 1 C918 0 033u C919 0 033u D N G k 0 9 3 1 2 1 R R910 10k R911 k 2 2 V 0 3 C931 0 47u C343 1u Q914 R913 560 R912 0 2 2 u p a _ t a b V u p a _ t a b V SA102 NC 2 1 Q905 C N Q903 Q901 R1012 C N R929 3 3k IC903 0 4 2 1 S L 1 LINE1 2 GND 3 CSW 4 RA 5 OUT 6 NULL 7 CR 8 LINE2 0 6 1 R 0 ...

Page 68: ...OK3 KEYS_F KEYIN6 KEYIN4 SP_LED HOOK1 KEYIN5 KEYS_A HOOK_GND LCD_VDD LCD_GND LCD_SID LCD_CD LCD_SCL LCD_CS LCD_RST MSG3 1 2 MSG4 1 2 NC HOOK2 GND SOFT3 1 2 SOFT2 1 2 SOFT1 1 2 SW901 2 1 3 5 4 6 C3 1u 25 C5 1u 25 R9 56 p 0 0 1 4 1 C C4 1u 25 p 0 0 1 5 1 C R7 56 R12 1M C9 1u 25 R11 220 5 2 u 1 2 C C8 1u 25 p 0 2 2 6 1 C C7 1u 25 R8 220 R10 220 C10 1u 25 5 2 u 1 1 C p 0 2 2 2 1 C C6 1u 25 p 0 2 2 3 1...

Page 69: ...69 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 14 4 Base Unit LED LED1 LED2 LCD Backlight R14 33 R15 33 KX TG4771 SCHEMATIC DIAGRAM Base Unit LED NC No Components ...

Page 70: ... GPIO 24 6 GPIO 25 7 GPIO 26 8 VDDC2 24 HSMIN 25 HSMIP 26 MPWR 27 HSSPOUTP 28 LOUT 29 SPOUTN 30 VCCPA 45 TXp 46 RXp 47 RXn 48 GND_RF 49 TRSW_p 50 ANT_n 51 ATST_n 52 ATST_p 81 GPIO 13 82 GPIO 14 83 GPIO 15 84 GPIO 16 85 GPIO 17 86 VDDIO2 87 GPIO 18 88 GPIO 19 89 GND 9 COREOUT 10 VBAT 11 DOUBCAPN1 12 DOUBCAPN 13 DOUBCAPP 14 DOUBCAPP1 15 DOUBOUT 16 DCIN0 LIN0 17 DCIN1 18 DCIN2 19 DCIN3 LIN1 20 VREF 2...

Page 71: ... C99 NC GND GND C804 1 8p C805 2 4p C806 2 4p C810 2 5p C813 1 6p C812 8 2n L809 1p C811 100p C822 10p C826 10p C825 10p C897 24p C37 10u 1608 X1 13 824M C73 10p C72 10p GND GND L4 180n L5 NC C16 22u L9 0 R28 2 2k GND ANT_TP MIC AP1 1 2 ANT Short GND ANT Short D21 4 3V D14 4 3V D13 4 3V D22 4 3V GNDA1 CN4 Headset Jack 1 4 2 3 5 R80 100 GNDA1 GNDA1 C83 D10p L75 L10 GNDA L1 GNDA1 C82 K470p GNDA C84 ...

Page 72: ...72 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 14 6 Portable LED LED KX TGA470 SCHEMATIC DIAGRAM Handset LED ...

Page 73: ...73 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 14 7 Charger Unit J1 2 1 G A K TP1 TP2 F1 R1 1 0 5W R2 D1 1 0 5W SCHEMATIC DIAGRAM Charger Unit ...

Page 74: ...74 KX TG4771B KX TG4772B KX TG4773B KX TGA470B Memo ...

Page 75: ...6 R903 R1017 R133 R904 R1018 R1019 R908 R909 R1020 C101 R331 R1021 C102 R332 R910 R911 R912 R913 R919 C306 R920 R921 R151 R922 R152 NC KEYS_C KEYS_D KEYS_A KEYS_B KEYS_F KEYIN1 KEYIN3 KEYIN2 KEYIN4 KEYIN5 KEYIN6 C501 R925 C502 R926 C503 R927 C504 R928 C505 C506 C507 C508 C509 R160 BLU ORG RED BLK YLW GRN R161 R162 R163 R164 HOOK_GND X501 R165 R166 R937 R167 R938 C515 C321 R939 C322 C517 C323 C518 ...

Page 76: ...R122 D472 D473 VBAT R1011 R1013 R900 R901 R906 C11 1 C11 2 C11 3 C500 TMS VDDC R929 L1R C120 L1T C121 C122 C123 C124 R932 R933 C510 R934 C511 C512 C513 C514 C516 C900 C901 C902 A C903 C904 C905 R941 C906 5 5V C521 R945 C523 R178 C525 C331 C532 C151 ANT1 TP C929 C930 C933 C938 C939 C940 C942 D113 C943 VREF C185 D900 D901 D902 D903 D133 HS MIC N MIN MIP HS SP N HS SP P HS MIC P PUR GRY DC BRN WHT YL...

Page 77: ...77 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 15 2 Base Unit Operation 15 2 1 Component View PNLB2051Z PbF KX TG4771 CIRCUIT BOARD Base Unit Operation Component View SW901 A ...

Page 78: ...C3 C4 C5 C6 C7 C8 LOCAT INT C9 LED901 LED902 LED903 DOWN CN903 STOP R10 R11 MSG1 R12 MSG2 MSG3 MSG4 FLASH RPT R7 R8 R9 SOFT1 REDIAL PAUSE SOFT2 SOFT3 ORG BLU LED SP SKIP UP A HOLD CONF ANS ERASE MUTE C10 C12 C13 C14 C15 C16 KX TG4771 CIRCUIT BOARD Base Unit Operation Bottom View PNLB2051Z PbF ...

Page 79: ...79 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 15 3 Base Unit LED A KX TG4771 CIRCUIT BOARD Base Unit LED Component View PNLB1188Z PbF LED IG ORG BLU LED1 LED2 R14 R15 ...

Page 80: ...80 KX TG4771B KX TG4772B KX TG4773B KX TGA470B Memo ...

Page 81: ...IC1 C826 D A 8 0 1 C863 C46 C803 ANT_TP ANT_Short GND ANT_Short C897 R69 R66 C69 E_SDA E_SCL E_WP R68 RTCK ATSTN TEST C44 C43 R1 C52 L9 R24 C1 C7 F1 L6 R8 R4 C35 Q9 CHG_CTRL R6 R9 D3 R73 D4 R74 C89 R34 C88 C96 C97 C39 RA4 C51 L3 C34 C17 C98 C68 C814 C24 C812 C810 C806 C822 C45 ATSTP CKM STM GND_J TMS TCK R67 TDI RSTN R807 C805 C802 C93 LED12 LED10 LED11 C91 C92 SID SCL CD CS RESET OTP C801 C804 C8...

Page 82: ...0B 15 4 2 Bottom View VOL_UP CN3_C VOL_DW LED7 LED1 TALK 1 4 7 8 9 0 A 5 6 2 3 SP FLASH OFF LED3 LED5 LED6 MIC LED21 LED20 LED4 LED2 LED9 LED9 SOFT_A SOFT_B UP DOWN LEFT RIGHT SOFT_C PNLB2012Z PA KX TGA470 CIRCUIT BOARD Portable Main Bottom View ...

Page 83: ...83 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 15 5 Portable LED A KX TGA470 CIRCUIT BOARD Portable LED Component View PNLB1964Z PbF IG ...

Page 84: ...TG4772B KX TG4773B KX TGA470B 15 6 Charger Unit 15 6 1 Component View 15 6 2 Bottom View J1 CIRCUIT BOARD Charger Unit Component View PNLB2081Z IG A CIRCUIT BOARD Charger Unit Bottom View PNLB2081Z IG D1 R1 F1 R2 A PbF ...

Page 85: ... KX TGA470B 16 Exploded View and Replacement Parts List 16 1 Cabinet and Electrical Parts Base Unit 1 24 2 3 9 8 4 5 6 7 12 17 22 10 11 15 28 18 18 29 19 13 14 PCB1 16 PCB2 20 21 23 LED Board Ref No Figure 2 6 8 mm A A A A A 25 A A 26 27 ...

Page 86: ...PA is available through sales route of Panasonic 3 Attach the SPACER No 121 to the exact location described above 110 B 109 102 103 105 E105 E106 E104 E101 1 113 114 108 122 123 121 3 101 107 E103 E102 B E107 MIC100 PCB100 106 116 115 112 Ref No Ǿ2 8 mm B Figure 117 118 119 111 B 120 2 Spacer No 121 Battery cover Put it in the center Stick it between ribs CUSHION RUBBER STICK IT WITHIN THE FRAMEWO...

Page 87: ...87 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 16 3 Cabinet and Electrical Parts Charger Unit 200 201 200 4 200 3 200 2 200 1 PCB200 B Ref No Ǿ2 8 mm B Figure ...

Page 88: ...88 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 16 4 Accessories and Packing Materials 16 4 1 KX TG4771B P1 P2 A6 P2 A4 A2 A3 A5 A5 A1 ...

Page 89: ...89 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 16 4 2 KX TG4772B A101 A104 A105 A106 A104 P101 P102 P102 P102 A102 A103 ...

Page 90: ...90 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 16 4 3 KX TG4773B A201 P202 P202 P202 P201 A202 A203 A206 A204 A205 A205 A205 ...

Page 91: ...91 KX TG4771B KX TG4772B KX TG4773B KX TGA470B 16 4 4 KX TGA470B Note 1 This pad is a piece of Ref No P301 GIFT BOX P302 1 A302 A303 A301 P301 ...

Page 92: ...CQMS Mica ECCD ECKD ECBT F1K ECUV Ceramic ECQE ECQV ECQG Polyester ECEA ECST EEE Electlytic ECQP Polypropylene Wattage Type Voltage Of Capacitor 10 16 1 8W 14 25 1 4W 12 1 2W 1 1W 2 2W 3 3W Voltage ECQ Type ECQG ECQV Type 05 50V 1 100V 2 200V ECSZ Type 0J 6 3V 1A 10V 1C 16V 1E 25 25V 1V 35V 50 1H 50V 1J 16V 2A 100V 0F 3 15V 1A 10V 1V 35V 0J 6 3V Others 1H 50V 2A 100V 2E 250V 2H 500V 14 PNKL1037Z1 ...

Page 93: ...21 100 R908 ERJ2RKF472X 4 7k R909 ERJ2RKF183X 18k R910 D0GA103JA021 10k Safety Ref No Part No Part Name Description Remarks R911 D0GA222JA021 2 2k R912 D0GA221JA021 220 R913 D0GA561JA021 560 R919 D0GB104JA057 100k R920 D0GB103JA057 10k R921 PQ4R10XJ392 3 9k S R922 D0GB104JA057 100k R925 D0GA222JA021 2 2k R926 D0GB473JA057 47k R927 D0GB473JA057 47k R928 ERJ3GEYJ474 470k S R929 D0GA332JA015 3 3k R93...

Page 94: ...A480 3 3p C894 ECUE1H100DCQ 10p S C895 F1G1H1R2A480 1 2p C896 F1G1H2R2A480 2 2p C900 ECUE1H100DCQ 10p S C901 ECUE1H681KBQ 680p S C902 ECUV1A105KBV 1 C903 ECUE1H681KBQ 680p S C904 ECUE1H102KBQ 0 001 S C905 ECUE1H102KBQ 0 001 S C906 ECUE1H331KBQ 330p S Safety Ref No Part No Part Name Description Remarks C908 PQCUV0J106KB 10 S C910 ECUE1H101JCQ 100p C912 F2A1C1010119 100 C918 ECUE1C333KBQ 0 033 S C91...

Page 95: ...OM 2 IC4 C0DBZYY00357 IC TRANSISTORS Q2 B1ADCF000040 TRANSISTOR SI Q3 B1ABGE000011 TRANSISTOR SI Q4 B1ADCF000040 TRANSISTOR SI Q5 DRC9113Z0L TRANSISTOR SI Q6 DRC9113Z0L TRANSISTOR SI Q9 2SC6054JSL TRANSISTOR SI S DIODES D13 B0BC4R3A0006 DIODE SI D14 B0BC4R3A0006 DIODE SI D21 B0BC4R3A0006 DIODE SI D22 B0BC4R3A0006 DIODE SI DA801 B0DDCD000001 DIODE SI LEDS LED1 B3ACB0000190 LED LED2 B3ACB0000190 LED...

Page 96: ...05KBQ 1 C93 ECUV1C105KBV 1 C96 ECUE1H100DCQ 10p S C97 ECUE1H100DCQ 10p S C801 ECUV1H100DCV 10p C802 F1G1H2R0A480 2p C803 F1G1H1R3A480 1 3p C804 F1G1H1R8A480 1 8p C805 F1G1H2R4A480 2 4p C806 F1G1H2R4A480 2 4p C810 F1G1H2R5A480 2 5p C811 ECUE1H101JCQ 100p S C813 F1G1H1R6A480 1 6p C820 F1G1H1R8A480 1 8p C822 ECUE1H100DCQ 10p S C825 ECUE1H100DCQ 10p S C826 ECUE1H100DCQ 10p S C863 F1G1H1R8A480 1 8p Saf...

Page 97: ...06 PNQX5103Z INSTRUCTION BOOK 1 P101 PNPK3510001Z GIFT BOX P102 PNPD1613Z CUSHION Safety Ref No Part No Part Name Description Remarks A201 PNLXP1005Z HANDLE HANDSET A202 PQJA10075Z CORD TELEPHONE A203 PQJA212V CORD HANDSET A204 PNKE1132Z1 HANGER BELT CLIP ABS HB A205 PNLV226Z AC ADAPTOR A206 PNQX5103Z INSTRUCTION BOOK 1 P201 PNPK3511001Z GIFT BOX P202 PNPD1614Z CUSHION Safety Ref No Part No Part N...

Page 98: ...B KX TG4773B KX TGA470B Digital Corded Cordless Answering System B Black Version for U S A TABLE OF CONTENTS PAGE 1 REPLACEMENT PARTS LIST 2 1 1 REFERENCE CHART 2 1 2 ORIGINAL AND NEW PARTS COMPARISON LISTS 2 Supplement 1 Please file and use this supplement manual together with the service manual for Model No KX TG4771B KX TG4772B KX TG4773B KX TGA470B Order No KM41112516CE ...

Page 99: ...column for each part in ORIGINAL AND NEW PARTS COMPARISON LISTS 1 Improve performance Remarks c To share the parts with other models 2 Change of material or dimension 3 To meet approved specification 4 Standardization 5 Addition 6 Deletion 7 Correction 8 Other Ref No Part No Part Name Description Pcs Set Remarks Notes Time of Change Original Old New Suffix Main P C Board Parts Portable C1 EEE0JA22...

Page 100: ...B KX TG4773B KX TGA470B Digital Corded Cordless Answering System B Black Version for U S A TABLE OF CONTENTS PAGE 1 REPLACEMENT PARTS LIST 2 1 1 REFERENCE CHART 2 1 2 ORIGINAL AND NEW PARTS COMPARISON LISTS 2 Supplement 2 Please file and use this supplement manual together with the service manual for Model No KX TG4771B KX TG4772B KX TG4773B KX TGA470B Order No KM41112516CE ...

Page 101: ...part in ORIGINAL AND NEW PARTS COMPARISON LISTS 1 Improve performance Remarks j To meet the standards 2 Change of material or dimension 3 To meet approved specification 4 Standardization 5 Addition 6 Deletion 7 Correction 8 Other Ref No Part No Part Name Description Pcs Set Remarks Notes Time of Change Original Old New Suffix Cabinet and Electrical Parts Portable 104 PNGT6775Z PNGT7242Z NAME PLATE...

Page 102: ...B KX TG4773B KX TGA470B Digital Corded Cordless Answering System B Black Version for U S A TABLE OF CONTENTS PAGE 1 REPLACEMENT PARTS LIST 2 1 1 REFERENCE CHART 2 1 2 ORIGINAL AND NEW PARTS COMPARISON LISTS 2 Supplement 3 Please file and use this supplement manual together with the service manual for Model No KX TG4771B KX TG4772B KX TG4773B KX TGA470B Order No KM41112516CE ...

Page 103: ...the Notes column for each part in ORIGINAL AND NEW PARTS COMPARISON LISTS 1 Improve performance Remarks m Discontinued To be replaced with a new part 2 Change of material or dimension 3 To meet approved specification 4 Standardization 5 Addition 6 Deletion 7 Correction 8 Other Ref No Part No Part Name Description Pcs Set Remarks Notes Time of Change Original Old New Suffix Cabinet and Electrical P...