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8.5. Check Handset Transmission

Cross Reference:

13.7. Signal Route (P.44).

8.6. Check Handset Reception

Cross Reference:

13.7. Signal Route (P.44).

NOTE:

When checking the RF UNIT, Refer to 8.4. Check the RF
Unit (P.24)

8.7. Check Call ID

Cross Reference:

13.5. Telephone Line Interface (P.42).

13.8. Calling Line Identification Circuit (Caller ID) (P.45).

Note:

·

Make sure the format of the Caller ID or Call Waiting
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.

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KX-TC1709LBB

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Содержание KX-TC1709LBB

Страница 1: ...atsushita Electric Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law KX TC1709LBB 900MHz Digital Cordless Phone Black Version for Brazil Telephone Equipment ORDER NO KM40109678C3 ...

Страница 2: ...Signal Flowchart in the Whole System 36 11 EXPLANATION OF BBIC Base Band IC DATA COMMUNICATION 37 11 1 Calling 37 11 2 To Terminate Communication 37 11 3 Ringing 37 11 4 Ports for Transmitting and Receiving of Data 37 12 BLOCK DIAGRAM Base Unit 38 13 CIRCUIT OPERATION Base Unit 39 13 1 DSP Digital Speech Signal Processing IC501 39 13 2 EEPROM IC551 39 13 3 Power Supply Circuit 40 13 4 Reset Circui...

Страница 3: ...ST 59 24 1 Base Unit 59 24 2 Handset 60 25 FOR SCHEMATIC DIAGRAM 63 25 1 Base Unit 27 SCHEMATIC DIAGRAM Base Unit 63 25 2 Handset 28 SCHEMATIC DIAGRAM Handset 63 25 3 Memo 64 26 SCHEMATIC DIAGRAM RF Unit 65 27 SCHEMATIC DIAGRAM Base Unit 66 28 SCHEMATIC DIAGRAM Handset 68 29 CIRCUIT BOARD RF Unit 70 30 CIRCUIT BOARD Base Unit 71 30 1 Component View 71 30 2 Flow Solder Side View 72 31 CIRCUIT BOARD...

Страница 4: ...1 STANDARD BATTERY LIFE 4 KX TC1709LBB ...

Страница 5: ...5 KX TC1709LBB ...

Страница 6: ...2 1 Base unit 2 LOCATION OF CONTROLS 6 KX TC1709LBB ...

Страница 7: ...2 2 Handset 7 KX TC1709LBB ...

Страница 8: ...3 DISPLAY The handset shows you instructions and information on the display These display prompts are shown below 8 KX TC1709LBB ...

Страница 9: ...9 KX TC1709LBB ...

Страница 10: ...nic AC ADAPTOR PQLV2LBZ The AC adaptor must remain connected at all times It is normal for the adaptor to feel warm during use If your unit is connected to a PBX which does not support Caller ID you cannot access the service 10 KX TC1709LBB ...

Страница 11: ...4 1 Adding Another Phone This unit will not function during a power failure To connect a standard telephone on the same line use the Panasonic T adaptor 11 KX TC1709LBB ...

Страница 12: ...5 1 Making Calls 5 OPERATION 12 KX TC1709LBB ...

Страница 13: ...13 KX TC1709LBB ...

Страница 14: ...14 KX TC1709LBB ...

Страница 15: ...15 KX TC1709LBB ...

Страница 16: ...and the CALLER ID indicator on the base unit flashes quickly If you subscribe to a Caller Display service the calling party information will be displayed after the first ring In order to view the Caller ID information please wait until the second ring to answer a call 16 KX TC1709LBB ...

Страница 17: ...5 3 FLASH Button 17 KX TC1709LBB ...

Страница 18: ...6 DISASSEMBLY INSTRUCTIONS 18 KX TC1709LBB ...

Страница 19: ...ews 2 6 X 12 A 4 2 Main P C Board Tapes and solder Main P C Board 3 Battery Cover Battery Cover 4 Rear Cabinet Screws 2 6 X 12 B 2 5 Rear Cabinet Rear Cabinet 6 Main P C Board Screw 2 6 12 C 1 Screws 2 6 10 D 2 Lead wire Main P C Board 19 KX TC1709LBB ...

Страница 20: ...7 ASSEMBLY INSTRUCTIONS 7 1 Assembly the LCD to P C Board Handset 20 KX TC1709LBB ...

Страница 21: ...eck Power P 22 8 2 Check Battery Charge P 23 8 3 Check Link P 23 8 4 Check the RF Unit P 24 8 5 Check Handset Transmission P 29 8 6 Check Handset Reception P 29 8 7 Check Call ID P 29 8 TROUBLESHOOTING GUIDE 21 KX TC1709LBB ...

Страница 22: ...Cross Reference 13 3 Power Supply Circuit P 40 13 4 Reset Circuit P 41 NOTE EEPROM is IC551 DSP is IC501 Models with no LCD can skip 8 1 Check Power 22 KX TC1709LBB ...

Страница 23: ... Cross Reference 8 1 Check Power P 22 8 3 Check Link NOTE EEPROM is IC551 DSP is IC501 1 Refer to 8 4 1 Finding out the Defective Unit P 24 Cross Reference 8 4 Check the RF Unit P 24 13 3 Power Supply Circuit P 40 15 2 Power Supply Circuit P 48 23 KX TC1709LBB ...

Страница 24: ... very large distance from the base unit and the TX signal from handset to base is very small Procedure First place handset jig on base under test to charge exchange security code press CLEAR and then TALK to operate The LCD will show TALK This means that the base unit sensitivity is OK HS JIG becomes NORMAL POWER mode immediately after the power supply turning on NOTES 1 If when setting the handse...

Страница 25: ...he TX signal from base to handset is very small Procedure First place handset under test to charge exchange security code then remove handset from base after you hear a beep Press TALK button on handset and if it links with the base then this handset sensitivity is OK BS JIG becomes NORMAL POWER mode immediately after the power supply turning on NOTES 1 If when setting the base to TEST LOW mode if...

Страница 26: ... 4 3 RF Check Flowchart Details of confirmation items are following in 8 4 4 Check Table for RF Block P 27 NOTE Base Unit EEPROM is IC551 DSP is IC501 Handset EEPROM is IC202 DSP is IC201 26 KX TC1709LBB ...

Страница 27: ... Check DSP interface IC101 DSP HS 5 3 TX frequency confirmation Procedure 1 Set Test mode Continuos Send 3 2 Confirm TX carrier frequency 1CH 902 713MHz 20kHz 1 Set Test mode Continuos Send Low Power 3 2 Confirm TX carrier frequency 1CH 902 713MHz 20kHz Check point 1 Check DSP or X200 oscillator Circuit 1 Check DSP or X201 oscillator Circuit 4 TX Power confirmation Procedure 1 Put RF wire to ANT a...

Страница 28: ...8 4 5 RF DSP interface signal wave form 28 KX TC1709LBB ...

Страница 29: ...Check the RF Unit P 24 8 7 Check Call ID Cross Reference 13 5 Telephone Line Interface P 42 13 8 Calling Line Identification Circuit Caller ID P 45 Note Make sure the format of the Caller ID or Call Waiting 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 29 KX TC1709LBB ...

Страница 30: ...t Reference Drawing P 32 Insert AC adaptor for entering the test mode during pressing the test switch 2 While the Tele line is connected the Caller ID LED is ON OFF as well 3 It shows whether the telephone line is connected or not ON OFF HOOK OFF ON HOOK 30 KX TC1709LBB ...

Страница 31: ...9 2 Test mode flow chart for Handset 1 See 9 5 Handset Reference Drawing P 33 Insert Battery for entering the Test mode during pressing the test switch 31 KX TC1709LBB ...

Страница 32: ...ment Frequency counter TP for adjustment TP_ANT Measure range 902 713 MHz 5 kHz 1ch at Test Standby mode in 9 TEST MODE P 30 9 4 Base Unit Reference Drawing IC501 IC321 IC331 IC301 RF UNIT ANT GND ANT COMPONENT VIEW B B E E IC551 C C Line A Line B FLOW SOLDER SIDE VIEW TEST 32 KX TC1709LBB ...

Страница 33: ...9 5 Handset Reference Drawing 100Ω ANT GND HANDSET COMPONENT VIEW ANT TEST PULL UP SP SP MIC MIC 10µ 10µ IC203 IC201 IC202 IC204 IC205 KX TC1709LBB 33 ...

Страница 34: ...9 6 FREQUENCY TABLE 34 KX TC1709LBB ...

Страница 35: ...sharing as shown in Fig 7 1 slot time of transmission and reception is 1mS Same frequency is used in transmitting and receiving The figure shows an example the frequency of 3ch is used in transmitting between the base unit and handset Fig 7 10 2 1 TDD Frame Format The TDD frame is 2mS in length Each subframe contains 128 bits of 7 8µS duration Each subframe consists of the following four fields A ...

Страница 36: ... filter L111 then input to DSP IC201 DSP performs ADPCM decoding to convert the signal into the voice signal then it is output to the speaker Transmission The voice signal input from the microphone is led to DSP IC201 The DSP generates ADPCM signal As well as the reception it is converted into the RF signal by RFIC IC101 Passing through filter L111 it is transmitted from the antenna As for the bas...

Страница 37: ...11 1 Calling 11 2 To Terminate Communication 11 3 Ringing 11 4 Ports for Transmitting and Receiving of Data 11 EXPLANATION OF BBIC Base Band IC DATA COMMUNICATION 37 KX TC1709LBB ...

Страница 38: ...12 BLOCK DIAGRAM Base Unit KX TC1709LBB 38 ...

Страница 39: ...ack and Line Monitoring modes of operation When the DTMF data from the Handset is received the DTMF signal is output Caller ID and Call Waiting CID demodulation The DSP implements monitor and demodulate the FSK signals that provide CID information from the Central Office Analog Switching The voice signal from telephone line is transmitted to the speaker or the voice signal from speakerphone microp...

Страница 40: ...tage to each block as shown below 13 3 1 Charge Circuit The voltage from the AC is supplied to the main charge circuits Normal charge 70 mA of maximum 20 hours is started soon after the Handset is placed on the base unit Then it changes to trickle charge 15 mA on the average to prevent from overcharging Normal charge Q150 is ON Trickle charge Q150 is OFF 40 KX TC1709LBB ...

Страница 41: ...he microcomputer when it incorporates an AC adaptor Circuit Operation When the AC Adaptor is inserted into the unit then the voltage is shifted by IC301 D306 and power is supplied to the DSP The set can operate beyond point in the circuit voltage diagram 41 KX TC1709LBB ...

Страница 42: ...DSP pin 27 BELL When the CPU DSP detects a ring signal Q121 turns on thus providing an off hook condition active DC current flow through the circuit and the following signal flow is for the voice signal T D101 Q121 R140 R139 C139 R138 R136 D131 D101 L102 P101 R ON HOOK Circuit Q121 is open Q121 is connected as to cut the DC loop current and to cut the voice signal The unit is consequently in an on...

Страница 43: ... or off hook by detecting changes in the T R voltage Circuit Operation Parallel connection detection when on hook When on hook Q115 is ON the voltage is monitored DCIN of DSP 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 Q115 is OFF the voltage is mo...

Страница 44: ...13 7 Signal Route Each signal route is as follows 44 KX TC1709LBB ...

Страница 45: ...r ID service contract has been entered for the circuit being used This model can receive 2 types of caller ID FSK type DTMF type FSK type The data for the caller ID from the telephone exchange is sent during the interval between the first and second rings of the bell signal The data from the telephone exchange is a modem signal which is modulated in an FSK Frequency Shift Keying format Data 0 is a...

Страница 46: ...46 KX TC1709LBB ...

Страница 47: ...14 BLOCK DIAGRAM Handset 47 KX TC1709LBB ...

Страница 48: ...efect circuit Ringer Generation Interface circuit RF unit speaker mic LED Key scan LCD Headset 15 1 2 RF unit Mainly voice signal is modulated to RF or it goes the other way 15 1 3 EEPROM IC202 All setting data is stored ex ID code user setting Flash Time Tone Pulse 15 2 Power Supply Circuit Voltage is supplied separately to each block as shown Block Diagram 48 KX TC1709LBB ...

Страница 49: ...D code setting with the base unit 15 4 Ringer and Handset SP Phone DSP 29 31 SP RINGER 15 5 Sending Signal The voice signal from the microphone input to DSP 46 47 CN203 is the headset jack When the headphone is connected the Q206 detect it The input from the microphone of the handset MIN MIP is cut and the microphone signal from the headphone is input to DSP 36 Also the power for the microphone is...

Страница 50: ...SP 44 HSMIP The signal input to DSP 44 is inverted and output to DSP 34 LOUTO The signal through the headset jack is inverted then output from DSP 34 to drive the speaker When the headset is inserted to the jack the voice signal is cut at the jack so the sound does not come out from the speaker but from the headset only 50 KX TC1709LBB ...

Страница 51: ...16 CPU DATA Base Unit 16 1 IC501 51 KX TC1709LBB ...

Страница 52: ...17 CPU DATA Handset 17 1 IC201 52 KX TC1709LBB ...

Страница 53: ...18 EXPLANATION OF IC TERMINALS RF Unit 18 1 IC101 53 KX TC1709LBB ...

Страница 54: ...5 Specific gravity 0 863 Original flux will be replaced daily 19 2 Procedure 1 Temporary fix FLAT PACKAGE IC by soldering on two marked 2 pins Most important matter is accurate setting of IC to the corresponding soldering foil 2 Apply flux for all pins of FLAT PACKAGE IC 3 Solder employing specified solder to direction of arrow as sliding the soldering iron 19 3 Modification Procedure of Bridge 1 ...

Страница 55: ...20 CABINET AND ELECTRICAL PARTS Base Unit 55 KX TC1709LBB ...

Страница 56: ...21 CABINET AND ELECTRICAL PARTS Handset 56 KX TC1709LBB ...

Страница 57: ...22 ACCESSORIES AND PACKING MATERIALS 57 KX TC1709LBB ...

Страница 58: ...23 TERMINAL GUIDE OF IC S TRANSISTORS AND DIODES 23 1 Base Unit 23 2 Handset 58 KX TC1709LBB ...

Страница 59: ...ION RUBBER 13 PQHA10018Z FOOT RUBBER 24 1 2 MAIN P C BOARD PARTS Ref No Part No Part Name Description Remarks PCB1 PQWPC1709LBH MAIN P C BOARD ASS Y RTL ICS IC301 C0CBABD00013 IC IC321 PQVIPS3327UT IC IC501 C2HBBG000025 IC IC551 PQWIC1709LBH IC TRANSISTORS Q101 2SD1819A TRANSISTOR SI Q115 2SD1819A TRANSISTOR SI Q121 2SA1625 TRANSISTOR SI S Q122 PQVT2N6517CA TRANSISTOR SI S Q131 2SC2120 TRANSISTOR ...

Страница 60: ...B 680P S C102 ECKD2H681KB 680P S C103 PQCUV1H154KR 0 15 C104 PQCUV1H154KR 0 15 C106 PQCUV1A684KB 0 68 Ref No Part No Part Name Description Remarks C111 ECKD2H681KB 680P S C112 ECKD2H681KB 680P S C115 ECUV1H103KBV 0 01 C121 ECUV1H103KBV 0 01 C131 ECUV1H101JCV 100P C132 ECUV1H103KBV 0 01 C134 ECEA1HKA010 1 C139 ECEA1CKA100 10 C140 ECUV1C473KBV 0 047 C302 ECUV1C104ZFV 0 1 C303 ECUV1C104ZFV 0 1 C304 E...

Страница 61: ... ERJ3GEYJ271 270 R206 ERJ3GEYJ271 270 R207 ERJ3GEYJ271 270 R209 ERJ3GEYJ102 1k R210 ERJ3GEYJ103 10k R211 ERJ3GEYJ103 10k R212 ERJ3GEYJ101 100 R213 ERJ3GEYJ101 100 R217 ERJ3GEYF434 430k S Ref No Part No Part Name Description Remarks R218 ERJ3GEYF824 820k S R222 ERJ3GEYJ101 100 R224 ERJ3GEYJ103 10k R225 ERJ3GEYJ472 4 7k R228 ERJ3GEYJ224 220k R229 ERJ3GEYJ102 1k R230 ERJ3GEYJ102 1k R231 ERJ3GEYJ102 1...

Страница 62: ...T Ref No Part No Part Name Description Remarks PCB200 PQLP10246Z RF BLOCK 24 2 4 ACCESSORIES AND PACKING MATERIALS Ref No Part No Part Name Description Remarks A1 PQLV2LBZ AC ADAPTOR A2 PQJA10075Z TEL CORD A3 PQKE10130Z1 BELT CLIP S A4 PQKL10035Z1 WALL MOUNT ADAPTOR S A5 PQQX13147Z INSTRUCTION BOOK A6 PQQW12582Z BETTERY LEAFLET P1 XZB20X35A01 PROTECTION COVER for Base Unit P2 XZB10X35A02 PROTECTIO...

Страница 63: ...his schematic diagram and circuit board may be modified at any time with the development of new technology 25 2 Handset 28 SCHEMATIC DIAGRAM Handset 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 63 KX TC1709LBB ...

Страница 64: ...25 3 Memo 64 KX TC1709LBB ...

Страница 65: ...26 SCHEMATIC DIAGRAM RF Unit TX RX 16 2 15 14 13 12 11 10 9 8 7 6 5 4 IC101 IC102 KX TC1709LBB 65 ...

Страница 66: ...27 SCHEMATIC DIAGRAM Base Unit 16 1dBm 343mVp p 3 3Vp p 1 2 3 5 4 6 11 12 13 16 14 5dBm 413mVp p 3 3Vp p IC501 IC551 66 KX TC1709LBB ...

Страница 67: ...Hz 140mVp p 25dBm 600 20 4dBm 209mVp p 27 2dBm 96mVp p Output 15 5dBm Call ID Data 6 0V 9V DC 3 3V 3 6V 3 3V 1 2 3 5 4 6 11 12 13 16 IC301 IC321 IC331 KX TC1709LBB SCHEMATIC DIAGRAM Base Unit To H S 67 KX TC1709LBB ...

Страница 68: ...28 SCHEMATIC DIAGRAM Handset 3Vp p 3Vp p IC202 1 2 3 6 23 27 52 46 48 49 51 53 59 4 5 24 26 41 45 28 40 68 KX TC1709LBB ...

Страница 69: ...24 5dBm 62mV 31 0dBm 3 3V Headset Headset Input 1 1kHz 43dBm 600 Input 1 1kHz 18mVp p 45dBm 600 1 2 3 6 23 27 52 46 48 49 51 53 59 4 5 24 26 41 45 28 40 IC205 IC203 IC201 IC204 KX TC1709LBB SCHEMATIC DIAGRAM Handset 69 KX TC1709LBB ...

Страница 70: ...29 CIRCUIT BOARD RF Unit IC101 70 KX TC1709LBB ...

Страница 71: ... Unit 30 1 Component View Charge Detect VRF 3 3 V X tal CLK 3 3 V C 3 3 V B Reset RST Power Down PDN ANT ANT GND IC501 IC321 IC331 IC301 RF UNIT 1 G 2 G 3 4 5 G G 6 7 8 9 G 10 11 12 13 G G 14 15 G 16 17 18 G KX TC1709LBB 71 ...

Страница 72: ...30 2 Flow Solder Side View Line A Line B Test B B E E IC551 C C KX TC1709LBB 72 ...

Страница 73: ...BOARD Handset 31 1 Component View IC203 IC201 IC202 IC204 IC205 1 G 2 3 4 5 6 7 8 9 10 11 12 13 G G 15 16 14 G G G G G 18 17 G MICM MICP SP1 TP_VCC TP_PDN TP_Reset CLK 4MHz 80 81 100 1 30 31 50 51 KX TC1709LBB 73 ...

Страница 74: ...31 2 Flow Solder Side View KX TC1709LBB 74 ...

Страница 75: ...75 KX TC1709LBB M KXTC1709LBB AK Printed in Japan ...

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