Panasonic KX-TG8021BXS Service Manual Download Page 76

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KX-TG8021BXS/KX-TG8021BXT/KX-TGA800BXS/KX-TGA800BXT

13 Schematic Diagram

13.1. For Schematic Diagram

13.1.1. Base Unit (Schematic Diagram (Base Unit_Main))

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.

13.1.2. Handset (Schematic Diagram (Handset))

Notes:

1. DC voltage measurements are taken with an oscilloscope or a tester with a ground.
2. The schematic diagram may be modified at any time with the development of new technology.

13.1.3. Charger Unit (Schematic Diagram (Charger Unit))

Notes:

1. DC voltage measurements are taken with voltmeter from the negative voltage line.

2. The schematic diagram may be modified at any time with the development of new technology.

Summary of Contents for KX-TG8021BXS

Page 1: ...pying and distribution is a violation of law ORDER NO KM40810745CE Telephone Equipment Model No KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT Digital Cordless Answering System S Silver Version T Titanium Black Version for Middle Near East and Africa ...

Page 2: ...2 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT ...

Page 3: ...ly and Assembly Instructions 53 10 1 Disassembly Instructions 53 10 2 How to Replace the Handset LCD 57 11 Measurements and Adjustments 58 11 1 The Setting Method of JIG Base Unit 58 11 2 Adjustment Standard Base Unit 60 11 3 Adjustment Standard Charger Unit 61 11 4 The Setting Method of JIG Handset 62 11 5 Adjustment Standard Handset 64 11 6 Things to Do after Replacing IC or X tal 65 11 7 RF Spe...

Page 4: ...pe recommended by the manufacturer 3 Dispose of used batteries according to the manufacture s Instructions 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 con tains lead We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made...

Page 5: ...r Tin Zinc and Bismuth Sn Zn 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...

Page 6: ... KX TGA800BXT 3 Specifications Note Design and specifications are subject to change without notice Note for Service Operation range Up to 300 m outdoors Up to 50 m indoors depending on the condition Analog telephone connection Telephone Line ...

Page 7: ...BMC Burst Encoding Burst Decoding RF PLL 5 3 77 75 9 10 EEPROM SCL SDA 57 58 44 To AC Adaptor Limit Resistor Charge Detector CHARGE CONTACT Optional VUNREG 3 0 V Reg IC1 2 4 V Reg Q9 1 8 V Reg Q8 3 0 V 2 4 V 1 8 V BBIC IC401 IC7 KX TG8021 BLOCK DIAGRAM BASE UNIT MOD DEMOD Charge Pump 43 2 5 V XTAL X1 10 368 MHz IC801 RX n RX p TX p TX n P on PSEL V DD PADRV 4 3 6 7 TX on RX on D801 D802 6 72 ANT1 ...

Page 8: ...n Echo cancellation and Echo suppression DSP section Any tones tone sidetone ringing tone etc generation DSP section DTMF receiver DSP section Clock Generation for RF Module ADC DAC timer and power control circuitry PLL Oscillator Detector Compress Expander First Mixer All interfaces ex RF Power Amp EEPROM LED Analog Front End etc RF Power Amp IC801 Amplifier for transmission and reception EEPROM ...

Page 9: ... Contact from AC Adaptor 6 5 V as shown in Fig 101 The power supply is as follows DECT BBIC IC7 DC Jack 6 5 V IC1 Q9 IC7 DC Jack 6 5 V IC1 Q8 IC7 RF Power Amp IC801 DC Jack 6 5 V IC1 IC801 Power AMP EEPROM IC401 DC Jack 6 5 V IC1 IC7 IC401 FLASH MEMORY IC421 DC Jack 6 5 V IC1 IC7 IC421 Charge Contact TP16 DC Jack 6 5 V R57 D22 R56 R55 TP16 Fig 101 ...

Page 10: ...ugh DECT BBIC IC7 as shown in Block Diagram Base Unit P 7 The voice signal passes through the analog part of IC7 where it is amplified and converted to a digital audio stream signal The burst switch controller processes this stream performing encryption and scrambling adding the various other fields to produce the GAP Generic Access Profile standard DECT frame assigning to a time slot and channel ...

Page 11: ...nt End D A A D 35 33 16 15 20 32 31 57 58 13 43 14 63 56 55 66 ADPCM Codec Filter DSP Speech Decoding Speech Encoding BMC Burst Decoding Burst Encoding RF Interface 9 10 XTAL X1 10 368 MHz BATTERY 41 ON SWITCH KEYPAD ROWS COLUMNS 27 49 50 51 22 23 24 25 26 BBIC IC1 IC3 54 LCD BACK LIGHT 52 19 LDO CTRL 42 KEY BACK LIGHT IC801 2 3 RXn RXp 78 77 73 TXn TXp Pon PSEL 74 V DD PADRY 4 3 6 7 75 80 TXon RX...

Page 12: ...d 1 8 V 4 4 3 Charge Circuit Circuit Operation When charging the handset on the Base Unit the charge current is as follows DC 6 5 V R57 D22 R56 R55 CHARGE Base CHARGE Handset L4 Q4 D7 F1 BAT TERY Battery BATTERY R45 GND L5 CHARGE Handset CHARGE Base GND DC GND In this way the BBIC on Handset detects the fact that the battery is charged The charge current is controlled by switching Q9 of Handset Re...

Page 13: ...13 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 4 5 Circuit Operation Charger Unit 4 5 1 Power Supply Circuit The power supply is as shown ...

Page 14: ...14 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 4 6 Signal Route ...

Page 15: ...15 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT ...

Page 16: ...16 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 5 Location of Controls and Components 5 1 Controls 5 1 1 Base Unit 5 1 2 Handset ...

Page 17: ...17 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 6 Installation Instructions 6 1 Connections 6 2 Battery 6 2 1 Battery Installation and Replace ment See For Service Hint P 25 ...

Page 18: ...th 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 2 3 Battery Level 6 2 4 Panasonic Ni MH Battery Performance supplied batteries ...

Page 19: ...19 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 7 Operating Instructions 7 1 Programmable Settings ...

Page 20: ...s 1 Base Number Displays the base unit number such as 1 7 This feature allows the handset to switch itself to dimmed backlight mode after being placed on the base unit or charger On Backlight is dimmed Off Backlight turns off after 10 seconds of charging 8 Turn this feature off if you prefer not to hear key tones while you are dialling or pressing any keys including confirmation tones and error to...

Page 21: ...XT 7 2 1 Deregistering a Handset 7 3 Copying Phonebook Entries You can copy phonebook entries to the phonebook of another compatible Panasonic handset Note Category settings for phonebook entries are not copied 7 3 1 Copying All Entries 7 4 Dialling Mode ...

Page 22: ...22 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 7 5 Error Messages ...

Page 23: ...23 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 7 6 Troubleshooting ...

Page 24: ...24 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT ...

Page 25: ...25 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 7 7 For Service Hint Cross Reference Battery Charge P 18 ...

Page 26: ...26 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 8 Service Mode 8 1 Engineering Mode 8 1 1 Base Unit ...

Page 27: ...ode to confirm the contents Careless rewriting may cause serious damage to the computer system ID 00 10 00 14 Given value Bell length 01 F5 32 5 sec 3 1E 3 sec 14 2 sec This is time until bell stops ringing Unit 100 ms PULSE Dial speed 10PPS 20PPS 03 B2 28 40 msec 3 19 20 msec This is pulse make time Unit 1 ms 03 B3 3C 60 msec 3 19 30 msec This is pulse break time Unit 1 ms 01 E4 57 870 msec 3 2C ...

Page 28: ...28 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 8 1 2 Handset ...

Page 29: ...writing may cause serious damage to the handset Items Address Default Data New Data Possible Adjusted Value MAX hex Possible Adjusted Value MIN hex Remarks Sending level 00 06 Adjusted value Given value 7F 00 2 Receiving level 00 07 Adjust value Given value 00 3F 3 Battery Low 00 04 70 4 Frequency 00 02 00 01 02 C0 ID 00 10 00 14 Given value Desired Number hex Input Keys Desired Number hex Input K...

Page 30: ... customer has registered Available models KX TG8011 8012 8021 Refer to the following procedures Note BS Base Unit HS Handset If the max number of handsets are already registered to the base unit a new handset cannot be registered To register the handset refer to Registering a Handset to a Base Unit P 20 To cancel the handset refer to Deregistering a Handset P 21 To copy the handset phonebook refer...

Page 31: ...umber of handsets are already registered to the base unit a new handset cannot be registered To register the handset refer to Registering a Handset to a Base Unit P 20 To cancel the handset refer to Deregistering a Handset P 21 To copy the handset phonebook refer to Copying Phonebook Entries P 21 ...

Page 32: ...21 only 8 3 1 Resetting both base unit and handset Both the base unit and the registered handset which you did the following steps to are reset Other registered handsets will not be reset Note 1 Refer to Registering a Handset to a Base Unit P 20 8 3 2 Resetting only handset The only handset is reset by doing the following steps to Note 2 The handset registration to the base unit is cancelled If th...

Page 33: ... 1 Troubleshooting Flowchart Flow Chart Cross Reference Check Power P 34 Bell Reception P 44 Check Battery Charge P 35 Check Link P 36 Check the RF part P 40 Check Handset Transmission P 43 Check Handset Reception P 43 Signal Route P 14 Check Caller ID P 43 Check TAM Operation P 44 ...

Page 34: ...k Power 9 1 1 1 Base Unit Is the AC Adaptor inserted into AC outlet 1 Cross Reference Power Supply Circuit P 9 Note 1 Refer to Specifications P 6 for part number and supply voltage of AC Adaptor 9 1 1 2 Handset Cross Reference Power Supply Circuit Reset Circuit P 12 ...

Page 35: ...X TGA800BXS KX TGA800BXT 9 1 2 Check Battery Charge 9 1 2 1 Base Unit Cross Reference Charge Circuit P 12 9 1 2 2 Handset Cross Reference Check Power P 34 Charge Circuit P 12 9 1 2 3 Charger Unit Cross Reference Charge Circuit P 12 ...

Page 36: ... KX TG8021BXT KX TGA800BXS KX TGA800BXT 9 1 3 Check Link 9 1 3 1 Base Unit Note 1 Refer to Troubleshooting by Symptom Base Unit and Charger Unit P 45 Cross Reference Check Point Base Unit P 45 Power Supply Circuit P 9 ...

Page 37: ...37 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT Cross Reference Check Point Base Unit P 45 ...

Page 38: ...KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 9 1 3 2 Handset Note 1 Refer to Troubleshooting by Symptom Handset P 49 Cross Reference Check Point Handset P 49 Power Supply Circuit Reset Circuit P 12 ...

Page 39: ...39 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT Cross Reference Check Point Handset P 49 ...

Page 40: ...k the RF part 9 1 4 1 Finding out 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 If you need to register a handset refer to Registering a Handset to a Base Unit P 20 ...

Page 41: ...A800BXT 9 1 4 2 RF Check Flowchart Each item 1 3 of RF Check Flowchart corresponds to Check Table for RF part P 42 Please refer to the each item Note 1 Base unit refer to G of Check Point Base Unit P 45 Handset refer to H of Check Point Handset P 49 ...

Page 42: ...gister HS to be checked to Regular BU 2 Press Talk key of the HS to establish link 2 X tal Frequency confirmation 1 Check X tal Frequency 1 10 368 MHz 100 Hz 1 Check X tal Frequency 2 10 368 MHz 100Hz 3 Range Confirmation Normal HS BU Mode Normal mode 1 Register Regular HS to BU to be checked 2 Press Talk key of the Regular HS to establish link 3 Compare the range of the BU being checked with that...

Page 43: ...TGA800BXT 9 1 5 Check Handset Transmission Cross Reference Signal Route P 14 9 1 6 Check Handset Reception Cross Reference How to Check the Handset Speaker or Receiver P 68 Signal Route P 14 9 1 7 Check Caller ID Cross Reference Signal Route P 14 ...

Page 44: ... Reference Telephone Line Interface P 10 Check Link P 36 How to Check the Handset Speaker or Receiver P 68 9 1 9 Check TAM Operation Cross Reference Power Supply Circuit P 9 Note 1 When replacing FLASH MEMORY IC421 TAM data need to be written to it Refer to Base Unit of Things to Do after Replacing IC or X tal P 65 ...

Page 45: ...en test point VDD3 and GND is 3 0 V 0 2 V IC1 C31 C32 R38 R39 C36 F1 C37 D1 B 1 8 V Supply Confirma tion VDD1 1 Confirm that the voltage between test point VDD1 and GND is 1 8 V 0 1 V Q8 C75 C614 C61 C64 C68 IC7 C Charge Pump 2 5V Supply Confirma tion VDD5 1 Confirm that the voltage between test point VDD5 and GND is 2 5 V 0 1 0 3 V IC7 C625 D Charge Pump 3 0V Supply Confirma tion VDD4 1 Confirm t...

Page 46: ...wer Con firmation ANTI_TP Remove the Antenna before starting step from 1 to 7 1 Configure the DECT tester CMD60 as follows Setting Test mode FP Traffic Carrier 5 Traffic Slot 4 Mode Loopback PMID 00000 RF LEVEL 70 dBm 2 Execute the command sendchar TST 3 Execute the command sendchar dmv 2 2 4 Check that Signalling Status has been set to Locked then press ACCEPT RFPI 5 Initiate connection from Dect...

Page 47: ... C74 Q9 C617 C621 C65 IC801 D801 D802 C801 C804 C808 C814 L802 L804 C819 C834 C825 O Timing Confirmation ANTI_TP Follow steps 1 to 6 of J 7 Confirm that the Timing accuracy is 5 0 ppm When adjust the frequency of CLK in item G 15 ppm When do not adjust the frequency of CLK in item A IC7 L7 C117 C118 C124 C125 R106 R109 DA1 R802 R807 C837 C826 C822 C820 C832 C833 C123 C74 Q9 C617 C621 C65 IC801 D80...

Page 48: ...osition from minimum 5 Confirm that the level is 22 dBm 2 dBm and that the distortion level is 5 at Receiver Volume Middle 150 Ω Load IC7 SA1 L1 L2 D3 Q3 Q4 R14 R15 R16 R17 R Charging Check 1 Connect Charge Contact 12 Ω 2 W resistor between charge and charge 2 Measure and confirm voltage across the resistor is 2 75 V 0 3 V R55 R56 R57 D22 D23 C623 S TAM Operation Confir mation 1 TAM Confirmation E...

Page 49: ...n Execute the command getchk 2 Confirm the returned checksum value Connection of checksum value and program number is shown below IC1 X1 RA61 R64 R66 C EEP ROM Confirmation CP2 5V 1 EEP ROM Confirmation Execute the command ChkTGA800XXrevYY bat XX country code YY revision number 2 Confirm the returned checksum value Note XX YY and checksum vary depending on the country version You can find them in ...

Page 50: ...cy of CLK exe cuting the command sendchar sfr xx xx where xx is the value so that the reading of the frequency counter is 10 368000 MHz 5 Hz Note Clear the registered information for Base Unit before measurement because The Frequency will not possibly get stable due to the registered information Pressing the button of 3 7 9 clears the registration Register to it on Base Unit after measurement IC1 ...

Page 51: ...D801 R807 L801 C820 C822 C826 C827 C832 C833 C837 D802 DA1 C117 C124 C186 C187 C802 C804 R107 R108 M Sensitivity Receiver Confirmation Follow steps 1 to 3 of I 4 Set DECT tester power to 88 dBm 5 Confirm that the BER is 1000 ppm IC1 R801 R806 C808 C814 C819 C825 C834 IC801 L802 L804 D801 R807 L801 C820 C822 C826 C827 C832 C833 C837 D802 DA1 C117 C124 C186 C187 C802 C804 R107 R108 N Power RAMP Conf...

Page 52: ...nected to Line Simulator 2 Set line voltage to 48 V and line current to 40 mA 3 Input 45 dBm 1KHz to MIC and measure Line output level 4 Confirm that the level is 8 5 dBm 2 dBm and that the distortion level is 5 at TEL Line 600 Ω Load 5 Input 20 dBm 1KHz to Line I F and measure Receiving level at REV and REV 6 Confirm that the level is 22 dBm 2 dBm and that the distortion level is 5 at Receiver vo...

Page 53: ...53 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 10 Disassembly and Assembly Instructions 10 1 Disassembly Instructions 10 1 1 Base Unit ...

Page 54: ...54 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT ...

Page 55: ...55 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 10 1 2 Handset ...

Page 56: ...56 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 10 1 3 Charger Unit ...

Page 57: ...57 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 10 2 How to Replace the Handset LCD ...

Page 58: ... 2 JIG and PC Serial JIG JIG Cable PQZZ1CD300E PC which runs in DOS mode Batch file CD ROM for setting PNZZTG8021BX Note If you have the JIG Cable for TCD500 series PQZZ1CD505E change the following values of resis tance Then you can use it as a JIG Cable for both TCD300 and TCD500 series It is an upper compatible JIG Cable 11 1 2 PC Setting 11 1 2 1 Connections Connect the AC adaptor to DC JACK ba...

Page 59: ...ROM Type rdeeprom 00 00 FF and the data from address 00 00 to FF is read out readid Read ID RFPI Type readid and the registered ID is read out writeid Write ID RFPI Type writeid 00 18 E0 0E 98 and the ID 0018 E0 0E 98 is written hookoff Off hook mode on Base Type hookoff hookon On hook mode on Base Type hookon getchk Read checksum Type getchk wreeprom Write the data of EEPROM Type wreeprom 01 23 4...

Page 60: ...P L2R RED D16 Q2 Q421 Q22 SPm SPp C8 C146 C423 C156 C48 C149 C145 C421 C624 C84 C136 C623 C626 C15 C16 C17 C167 R100 C28 C6 C5 C3 C121 C119 C160 C158 C833 C820 C826 C825 C801 C159 C809 C819 C810 C812 C803 C122 C161 C65 C305 C615 C616 R86 R76 R424 R81 R621 R82 R652 R651 R650 R806 R34 R656 R35 R79 R80 R22 R21 R9 R10 R3 R4 R87 R126 R425 L804 L803 L5 L7 L4 IC7 IC801 IC421 D23 D26 D21 D802 D801 PQUP115...

Page 61: ...rger Unit When connecting the simulator equipment for checking please refer to below 11 3 1 Bottom View Note A is referred to Check Point Charger Unit P 48 TP4 TP3 1 2 J1 D1 A F1 PbF PQLV30055 PQLV30056 PQUP11532Z Charge Charge 10 2 W Digital Volt Meter A DC POWER DC 6 5 V TP3 TP4 GND ...

Page 62: ...Oscilloscope 11 4 1 2 JIG and PC Serial JIG JIG Cable PQZZ1CD300E PC which runs in DOS mode Batch file CD ROM for setting PNZZTG8021BX Note If you have the JIG Cable for TCD500 series PQZZ1CD505E change the following values of resis tance Then you can use it as a JIG Cable for both TCD300 and TCD500 series It is an upper compatible JIG Cable 11 4 2 PC Setting 11 4 2 1 Connections Connect the DC Po...

Page 63: ...tion Example rdeeprom Read the data of EEPROM Type rdeeprom 00 00 FF and the data from address 00 00 to FF is read out readid Read ID RFPI Type readid and the registered ID is read out writeid Write ID RFPI Type writeid 00 18 E0 0E 98 and the ID 0018 E0 0E 98 is written getchk Read checksum Type getchk wreeprom Write the data of EEPROM Type wreeprom 01 23 45 01 23 is address and 45 is data to be w...

Page 64: ...ATT GND D4 D3 C147 C331 C TP1 C TP2 C39 R20 C172 SP PHONE_SPEAKER C73 C72 C140 C71 C188 C12 C809 C819 C810 C822 C97 C96 C820 C826 C803 C812 C833 C825 C53 C51 C138 C124 C49 R2 R7 R6 R30 R45 R309 R321 R320 R310 F1 R8 E R300 R301 R304 R302 R305 R303 R248 R249 R331 R332 R23 R207 R28 R802 R806 R63 R64 R107 R108 L5 L4 L14 L804 L803 IC801 RA61 D7 D8 D4 D3 D14 D13 D21 D22 D802 D801 DA1 Q9 Q4 B KX TGA800EX...

Page 65: ...dicating downloading has finished 6 Detach the JIG cable then disconnect the DC Power 7 Connect the DC Power 8 Connect the JIG cable again and execute the command getchk then confirm the checksum value is correct If the downloading fails start again from step 1 9 Default batch file Execute the command default bat 10 Country version batch file Execute the command TG7320XXrevYY bat 1 11 Clock adjust...

Page 66: ...ing has finished 7 Detach the JIG cable then press the handset Power key to turn it on 8 Connect the JIG cable again and execute the command getchk then confirm the checksum value is correct If the downloading fails start again from step 1 9 Default batch file Execute the command default bat 10 Default batch file remaining Execute the Command TGA800DEFrevYY bat 3 11 Country version batch file Exec...

Page 67: ...nit L Frequency Drift 35 kHz ms Check Point Base Unit M RX Sensitivity 1000 ppm Check Point Base Unit N Timing Accuracy 5 0 ppm 15 0ppm Check Point Base Unit O Power RAMP Power RAMP is matching Check Point Base Unit P Item Value Refer to TX Power 19 dBm 24 dBm Check Point Handset I Modulation 320 400kHz div 320 400 kHz div Modulated width 670 kHz Check Point Handset J Frequency Offset Offset 20 KH...

Page 68: ...e Unit and Handset BASE UNIT HANDSET Channel No Transmit Frequency Receive Frequency Transmit Frequency Receive Frequency 1 1897 344 1897 344 1897 344 1897 344 2 1895 616 1895 616 1895 616 1895 616 3 1893 888 1893 888 1893 888 1893 888 4 1892 160 1892 160 1892 160 1892 160 5 1890 432 1890 432 1890 432 1890 432 6 1888 704 1888 704 1888 704 1888 704 7 1886 976 1886 976 1886 976 1886 976 8 1885 248 1...

Page 69: ... A I A I 26 ADC0 P3_3 A I ADC0 A I A I 27 ADC1 INT0 P1_0 A I ADC1 A I I PU 28 NTC ADC2 GND A I 29 SOCp GND A I 30 SOCn GND A I 31 CHARGE_CTRL A O N C A O O 0 32 P1_7 CHARGE A I CHARGE A I I PD 33 PAOUTp P3_1 A O PAOUTp A O O 0 34 VDDPA VDDPA 35 PAOUTn P3_0 A O PAOUTn A O O 0 36 VBAT1 VBAT1 37 CP_C1x A I O N C A I O A I 38 CP_C2x A I O CP_C2x A I O A I 39 CP_C1y A I O N C A I O A I 40 VBAT2 VBAT2 4...

Page 70: ... I PU 66 P2_2 PCM_CLK CLK100 D O N C O_0 I PU 67 P2_1 ECZ2 PWM1 LED4 D O LED2 A I A I 68 P2_0 ECZ1 PWM0 LED3 D O LED1 A I A I 69 VDD2 1 8V 70 LDORF_CTRL A I LDORF_CTRL A I A I 71 RF_SUPPLY2 RF_SUPPLY2 72 RF0n D O ANT2 O_0 1 Hi Z 73 RFP4 D O PON O_0 1 Hi Z 74 RFP3 D O PSEL O_0 1 Hi Z 75 VDD_PADR A O VDD_PADRV A O A O 76 VSS_PADR1 GND 77 RF_TXp A O TXp A O A O 78 RF_TXn A O TXn A O A O 79 VSS_PADR2 ...

Page 71: ...PU 28 NTC ADC2 A I GND I_0 A I 29 SOCp A I SOCp A I A I 30 SOCn A I SOCn A I A I 31 CHARGE_CTRL A O CHARGE_CTRL A O O 0 32 P1_7 CHARGE A I CHARGE A I I PD 33 PAOUTp P3_1 A O PAOUTp A O O 0 34 VDDPA VDDPA 35 PAOUTn P3_0 A O PAOUTn A O O 0 36 VBAT1 VBAT1 37 CP_C1x A I O CP_C1x A I O A I 38 CP_C2x A I O CP_C2x A I O A I 39 CP_C1y A I O CP_C1y A I O A I 40 VBAT2 VBAT2 41 CP_C2y A I O CP_C2y A I O A I ...

Page 72: ...1 I PU 67 P2_1 ECZ2 PWM1 LED4 D I N C O_0 A I 68 P2_0 ECZ1 PWM0 LED3 D O BELL_LED_A A I A I 69 VDD2 1 8V 70 LDORF_CTRL A I N C A I A I 71 RF_SUPPLY2 RF_SUPPLY2 72 RF0n D O ANT2 O_0 1 Hi Z 73 RFP4 D O PON O_0 1 Hi Z 74 RFP3 D O PSEL O_0 1 Hi Z 75 VDD_PADR A O VDD_PADRV A O A O 76 VSS_PADR1 GND 77 RF_TXp A O TXp A O A O 78 RF_TXn A O TXn A O A O 79 VSS_PADR2 GND 80 RFP2 D O TXON O_0 1 Hi Z 81 GND GN...

Page 73: ...t and 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 12 3 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 ...

Page 74: ...e accuracy 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 12 3 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 75: ...75 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 12 4 Terminal Guide of the ICs Transistors and Diodes 12 4 1 Base Unit 12 4 2 Handset 12 4 3 Charger Unit ...

Page 76: ...me with the development of new technology 13 1 2 Handset Schematic Diagram Handset Notes 1 DC voltage measurements are taken with an oscilloscope or a tester with a ground 2 The schematic diagram may be modified at any time with the development of new technology 13 1 3 Charger Unit Schematic Diagram Charger Unit Notes 1 DC voltage measurements are taken with voltmeter from the negative voltage lin...

Page 77: ...77 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT Memo ...

Page 78: ...GND 100n C808 2 4p C802 7p C812 GND 7p C832 GND GND PON 1k R804 RF_RXp 1 3p C803 RF_RXn GND GND 7p C833 GND TXp GND 10p C819 7p C801 220 R806 4 7n L803 GND 4 7n L802 TXn GND PSEL D802 2 4p C804 3 3n C814 10p C825 1p C834 1 6p C810 VDD_PADRV TXON 1k R803 GND 1 PSET 2 VCCS 3 PI 4 PIX 7 PSEL 8 POX 9 PO 10 VCC 11 GND 5 PRAMP 6 PAON C837 NC GND GND GND GND 0 75p C820 C807 NC 4 7n L804 100p C822 RXON 22...

Page 79: ... 3 A2 4 VSS 5 SDA 6 SCL 7 WP 8 VCC D22 R654 NC 2 5_CP 3 0V 6 8n C622 6 8n C623 1k R656 C624 NC L2T L1T L1R DCM DCP L2R C12 NC 10 3216 R124 3 9k R20 82 R30 100k R36 10p C137 GND C166 NC Q3 100u 16 C32 50 10u C27 C49 NC GND 10 368M X1 1 3 2 22n C54 82n C55 120 R29 NC D26 R653 NC ANT1 RF_RXn RXON TXON TXn TXp VDD_PADRV PSEL PON ANT2 RF_RXp C37 3p GND 3p C29 C626 NC NC C30 10 330u C36 1 VSS_LNA1 2 RF_...

Page 80: ...gram Base Unit_Operation PLAY 1 2 CN10 10 CN10 2 CN10 3 PLAY2 1 2 CN10 4 CN10 1 C CN10 9 CN10 5 CN10 7 CN10 6 CN10 8 LED2 LED1 LOCATOR 1 2 STOP 1 2 ERASE 1 2 ANS_ON 1 2 VOL_UP 1 2 REPEAT 1 2 VOL_DOWN 1 2 SKIP 1 2 PLAY ANSWER ON KX TG8021 SCHEMATIC DIAGRAM Base Unit_Operation ...

Page 81: ...81 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT Memo ...

Page 82: ...17 1u C332 1u C331 C38 NC C150 NC IC1 1 VSS_LNA1 2 RF_RXp 21 CIDINp VREFp 3 RF_RXn 4 VSS_LNA2 5 RFP1 6 RFP0 7 REF_RES 8 AVS_XTAL 22 RINGp P3_7 23 RINGn P3_6 24 RINGOUT RINGING P3_5 25 PARADET P3_4 26 ADC0 P3_3 27 ADC1 INT0 P1_0 28 NTC ADC2 41 CP_C2y 42 CP_VOUT1 LED1 43 CP_VOUT2 LED2 44 PON P1_6 45 VDD1 46 P2_7 BXTAL 81 GND 9 XTAL2 10 XTAL1 11 AVD_XTAL 12 RF_SUPPLY1 13 LDO_CTRL 14 AVD 15 LSRn 16 LS...

Page 83: ...D GND GND GND 4 7n L804 3 3n C814 1p C834 GND GND D802 220 R807 10p C809 D801 10p C811 4 7n L802 GND 10p C819 2 4p C804 100n C808 1 3p C803 1k R803 GND GND SP PHONE_SPEAKER 10p C72 10p C73 10p C117 7p C812 10p C825 D13 D14 220 R108 220 R107 MIC PB1 1 2 DA1 1 2 3 D22 D21 GND_1 GND_1 C70 NC C71 NC GND_1 GND_1 C140 NC 0 1u C172 IC3 64k 1 A0 2 A1 3 A2 4 GND 5 SDA 6 SCL 7 WP 8 VCC 1u C188 L14 L15 GNDGN...

Page 84: ...84 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 13 5 Schematic Diagram Charger Unit J1 2 1 TP3 G TP2 TP1 TP4 R1 10 D1 A K F1 SCHEMATIC DIAGRAM Charger Unit ...

Page 85: ...8 C27 C1 C2 C7 C118 C125 C18 C56 C155 CN5 R116 R36 R516 R132 R801 JTAG IC401 R78 R77 R657 R106 R109 R130 R57 R129 R511 R56 R24 R18 R20 R19 R55 R23 R14 R29 TP9 TP10 RA501 D22 D3 D12 Q24 Q5 E E E Q3 Q4 C166 C12 C57 C22 C23 C24 C306 C9 C10 C148 C147 C501 C51 C30 D1 C31 C32 C163 C37 C141 X1 C25 R15 R28 R27 R532 R38 R39 R 6 3 1 R542 R654 R653 R17 R16 IC1 RA402 D9 D6 D5 Q23 Q8 R8 L1 ANT_1 L2 SA1 R7 D15 ...

Page 86: ...1R YELLOW L1T GREEN L2T WHITE CL1 ANT1_TP L2R RED D16 Q2 Q421 Q22 SPm SPp C8 C146 C423 C156 C48 C149 C145 C421 C624 C84 C136 C623 C626 C15 C16 C17 C167 R100 C28 C6 C5 C3 C121 C119 C160 C158 C833 C820 C826 C825 C801 C159 C809 C819 C810 C812 C803 C122 C161 C65 C305 C615 C616 R86 R76 R424 R81 R621 R82 R652 R651 R650 R806 R34 R656 R35 R79 R80 R22 R21 R9 R10 R3 R4 R87 R126 R425 L804 L803 L5 L7 L4 IC7 I...

Page 87: ...8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 14 2 Circuit Board Base Unit_Operation 14 2 1 Component View KX TG8021 CIRCUIT BOARD Base Unit_Operation Component View A CN10 1 10 PbF PQUP11539Z KX TG7321 TG8021 ...

Page 88: ...G8021BXT KX TGA800BXS KX TGA800BXT 14 2 2 Bottom View KX TG8021 CIRCUIT BOARD Base Unit_Operation Bottom View A VOL_DOWN CN10 1 10 SKIP PLAY VOL_UP LED1 LED2 LOCATOR ANS_ON STOP ERASE REPEAT PbF PQUP11539Z KX TG7321 TG8021 ...

Page 89: ... Q11 Q12 E E Q2 C113 MIC MIC CHG CHG C74 C75 C150 UTX URX BAT BATT BATT GND D4 D3 C147 C331 C TP1 C TP2 C39 R20 C172 SP PHONE_SPEAKER C73 C72 C140 C71 C188 C12 C809 C819 C810 C822 C97 C96 C820 C826 C803 C812 C833 C825 C53 C51 C138 C124 C49 R2 R7 R6 R30 R45 R309 R321 R320 R310 F1 R8 E R300 R301 R304 R302 R305 R303 R248 R249 R331 R332 R23 R207 R28 R802 R806 R63 R64 R107 R108 L5 L4 L14 L804 L803 IC80...

Page 90: ...D W_LED R235 R234 R233 R238 R53 R50 R51 R109 R54 R55 C105 C106 C107 C103 CN3 E 20 1 R52 R16 R15 R17 R18 R19 C27 Q10 C28 C114 C104 LED5 SOFT_A SOFT_B SOFT_C TALK UP S1 LEFT RIGHT SP 1 2 3 4 5 6 7 8 0 9 INT B R DOWN CANCEL LED8 LED6 KX TGA800 CIRCUIT BOARD Handset_Main Bottom View KX TGA800EX PbF PNLB1040Z ...

Page 91: ...ircuit Board Charger Unit 14 4 1 Component View 14 4 2 Bottom View J1 R1 D1 A PQUP11532Z PbF PQLV30055 PQLV30056 CIRCUIT BOARD Charger unit Component View TP4 TP3 1 2 J1 D1 A F1 PbF PQLV30055 PQLV30056 PQUP11532Z CIRCUIT BOARD Charger unit Bottom View TP4 GND TP3 ...

Page 92: ...92 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 15 Exploded View and Replacement Parts List 15 1 Cabinet and Electrical Parts Base Unit ...

Page 93: ...et and Electrical Parts Handset Note 1 This cable is fixed by welding Refer to How to Replace the Handset LCD P 57 2 The rechargeable Ni MH battery HHR 4MPT is available through sales route of Panasonic 3 Attach the spacer No 121 to the exact location described above ...

Page 94: ...94 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 15 3 Cabinet and Electrical Parts Charger Unit ...

Page 95: ...95 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 15 4 Accessories and Packing Materials 15 4 1 KX TG8021BXS BXT ...

Page 96: ...96 KX TG8021BXS KX TG8021BXT KX TGA800BXS KX TGA800BXT 15 4 2 KX TGA800BXS BXT ...

Page 97: ... CABINET BODY for KX TG8021BXT PS HB 2 L0AD02A00026 SPEAKER 3 PQHG10729Z RUBBER PARTS CUSHION 4 PQHR11313Z GUIDE SPEAKER ABS HB 5 PNKE1001Y3 CHARGE CASE for KX TG8021BXS PS HB 5 PNKE1001Y2 CHARGE CASE for KX TG8021BXT PS HB 6 PNJT1003Z CHARGE TERMINAL 7 K2ECYZ000001 JACK DC 8 PQJJ1T039Y JACK MODULAR 9 PNBC1002Y3 BUTTON NAVIGATOR ABS HB 10 PNHR1001Z GUIDE BUTTON PS HB 11 PNBC1001Z3 BUTTON MESSAGE A...

Page 98: ...2GEJ102 1k Safety Ref No Part No Part Name Description Remarks R804 ERJ2GEJ102 1k R805 ERJ2GEJ470 47 R806 ERJ2GEJ221 220 R807 ERJ2GEJ221 220 CAPACITORS C3 F1K2H152A008 1 5n C4 F1K2H152A008 1 5n C5 ECUV1H102KBV 0 001 C6 ECUV1H102KBV 0 001 C7 ECUV1C104KBV 0 1 C8 ECUV1C104KBV 0 1 C9 F1K2H681A008 680p C10 F1K2H681A008 680p C14 ECUE1E472KBQ 0 0047 C17 PQCUV1A225KB 2 2 C18 ERJ3GEYJ682 6 8k C22 PQCUV1A10...

Page 99: ...Z SPACER LCD CUSHION 108 PNBC1003Y3 BUTTON NAVIGATOR KEY ABS HB 109 PNJK1029X RUBBER SWITCH 110 PNJT1002Z CHARGE TERMINAL R 111 PNJT1001Z CHARGE TERMINAL L 112 PNLA1005Z ANTENNA 113 PQHR11313Z GUIDE SPEAKER ABS HB 114 PQHG10729Z RUBBER PARTS SPEAKER 115 L0AD02A00026 SPEAKER 116 PQHS10622Z SPEAKER NET 117 PNKF1033Z2 CABINET COVER KX TGA800BXS ABS HB 117 PNKF1033Z1 CABINET COVER KX TGA800BXT ABS HB ...

Page 100: ...49 ECUV1A105KBV 1 C50 ECUV1A105KBV 1 Safety Ref No Part No Part Name Description Remarks C51 ECUV1A105KBV 1 C52 PQCUV0J106KB 10 C53 PQCUV0J106KB 10 C72 ECUE1H100DCQ 10p C73 ECUE1H100DCQ 10p C96 ECUE1H101JCQ 100p C97 ECUE1H101JCQ 100p C103 ECUE1H101JCQ 100p C104 ECUE1H101JCQ 100p C105 ECUE1H101JCQ 100p C106 ECUE1H390JCQ 39p C107 ECUE1H390JCQ 39p C114 ECUE1H102KBQ 0 001 C117 ECUE1H100DCQ 10p C124 F1...

Page 101: ...ISTOR R1 ERG2SJ100E 10 FUSE F1 K5H302Y00003 FUSE Safety Ref No Part No Part Name Description Remarks A1 PQLV207BXU AC ADAPTOR A2 PQJA10075Z CORD TELEPHONE A3 PNQX1396Z INSTRUCTION BOOK 1 A4 PNQW1298Z LEAFLET QUICK GUIDE for Arabic A5 PNQW1299Z LEAFLET QUICK GUIDE for Persian P1 PNPP1009Z PROTECTION COVER for Base Unit P2 XZB08X25B02 PROTECTION COVER for Handset P3 PNPK1831Z GIFT BOX Safety Ref No ...

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