Panasonic KX-TC1206TWB Service Manual Download Page 76 | Manualshive

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RX VCO

L6, C24

DUPLEXER

DPX1

MIX 1/2

RF AMP

Q1, T3

RX LOOP

X1

X3

TX LOOP

DC 3.9V

RF IC

IC1

TB31224F

CPU

TMP87PH47U

PLL
-DATA
-CLK
-EN

TX

POWER

CONTROL

PLL
-DATA
-CLK
-EN

RX

DATA

TX

DATA

POWER

CONTROL

Q4

BATTERY

3.9V

RF AMP

Q5, T5

TX VCO

Q6, T6, DV1

PLL OSC

RF FILTER

CF1, CF2

ANTENNA

BLOCK DIAGRAM

(HANDSET)

LED

Q8, LED 1-4

RESET

Q11

DIODE

BRIDGE

D1

CHARGE

DTC

IC2 PING37

BUZZER

Q7, BZ1

KEY BOARD

EXP

SPEAKER

REC1

MIC

MIC1

CHARGE

TERMINAL

DIODE

BRIDGE

Q9

COM

DC 3.9V

CONTROL LINE

AUDIO SIGNAL

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Summary of Contents for KX-TC1206TWB

Page 1: ...ORDER NO KM40111737C3 Telephone Equipment KX TC1206TWB KX TC1206TWS KX TC1206TWF KX TC1206TWP Cordless Phone Black Version Silver Version Blue Version Pink Version for Taiwan SPECIFICATIONS 1 ...

Page 2: ...2001 Kyushu Matsushita Electric Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law 1 BATTERY 1 1 Recharge 2 ...

Page 3: ...1 2 Battery information 2 BATTERY REPLACEMENT 3 ...

Page 4: ...3 LOCATION OF CONTROLS 3 1 Base Unit 4 ...

Page 5: ...3 2 Handset 5 ...

Page 6: ...4 CONNECTION 6 ...

Page 7: ...C adaptor must remain connected at all times It is normal for the adaptor to feel warm during use When more than one unit is used the units may interfere with each other To prevent or reduce interference please leave ample space between the base units 7 ...

Page 8: ...4 1 Adding Another Phone This unit will not function during a power failue To connect a standard telephone on the same line use a T adaptor 8 ...

Page 9: ...5 OPERATIONS 5 1 Making Calls 5 2 Answering Calls 9 ...

Page 10: ...5 3 Storing Phone Numbers in Memory 5 4 Storing a Phone Number in the DIRECT Button 10 ...

Page 11: ...5 5 Dialing a Stored Number 5 6 Dialing the Stored Number in the DIRECT Button 11 ...

Page 12: ...5 7 Flash Button 6 DISASSEMBLY INSTRUCTIONS 12 ...

Page 13: ...Show in Fig Procedure To remove Remove 1 1 Lower Cabinet Screws 2 6 12 A 4 2 1 2 Main P C Board Screws 2 6 6 B 1 Solder Main P C Board 13 ...

Page 14: ...how in Fig Procedure To remove Remove 3 3 Rear Cabinet Battery compartment cover 4 3 4 Screws 2 6 12 C 2 5 3 4 5 Main P C Board Screw 2 6 12 D 1 Tape and solder Main P C Board 7 TROUBLESHOOTING GUIDE 14 ...

Page 15: ...Cross Reference Check Power Bell Reception Check Battery Charge Check Link Check Handset Transmission Check Handset Reception 7 1 Check Power 15 ...

Page 16: ...nce Reset Circuit Base Unit Power Supply Circuit Note CPU IC2 Cross Reference Charge Circuit Note CPU IC2 Each measurement points are shown in CIRCUIT BOARD Base Unit or CIRCUIT BOARD Handset 7 2 Bell Reception 16 ...

Page 17: ...p even after key was pressed to answer the call In this case the Base Unit and the Handset might have been mixed up at the customer side Therefore each of these units should be replaced to the original ones which have the same suffix Each measurement points are shown in CIRCUIT BOARD Base Unit or CIRCUIT BOARD Handset 7 3 Check Battery Charge 17 ...

Page 18: ...ross Reference Charge Circuit Power Supply Circuit Note CPU IC2 Cross Reference Reset Circuit Handset Note CPU IC2 Each measurement points are shown in CIRCUIT BOARD Base Unit or CIRCUIT BOARD Handset 18 ...

Page 19: ...7 4 Check Link Refer to Adjustment Note CPU IC2 RF IC IC1 Each measurement points are shown in CIRCUIT BOARD Base Unit or CIRCUIT BOARD Handset 19 ...

Page 20: ... Refer to Adjustment Note CPU IC2 RF IC IC1 Each measurement points are shown in CIRCUIT BOARD Base Unit or CIRCUIT BOARD 20 ...

Page 21: ...andset Make adjustments in item The base unit dose not transmit or the transmit frequency is off Make adjustments in item The transmit frequency is off Make confirmation in item The transmit power output is low and the operating distance between the base unit and the handset is less than normal Make confirmation in item The reception sensitivity of base unit is low with noise Make confirmation in ...

Page 22: ...est Mode Flow Chart Base Unit The operation flow of Test mode and main check items are shown below Note Refer to the above table 8 2 How to change the channel Refer to Flow Solder Side View 8 3 Adjustment 22 ...

Page 23: ... Level Confirmation 3ch Talk 1 Apply 60dBm output from S S G modulation frequency 1KHz dev 3KHz 2 Confirm that the reading of AF VTVM is 600mV 200mV 600 load G Line Input Modulation Confirmation 3ch Talk 1 Input via loop simulator 1 0KHz 130mV measured at T R signal 2 Apply 60dBm output from S S G modulation frequency 1KHz dev 0KHz 3 Confirm so that the reading of FM Deviation Meter is 3 1KHz 0 4K...

Page 24: ...confirmation in item The reception sensitivity of base unit is low with noise Make confirmation item F Does not link between the base unit and the handset Make confirmation in item The reception level is high or low Make confirmation item H The transmit level is high or low Make adjustments in item Refer to Adjustment Unit condition 1 Remove the antenna lead wire from P C Board of the handset 2 Po...

Page 25: ...Note Refet to CIRCUIT BOARD Handset Signal Route 9 2 How to change the channel 9 3 Adjustment 25 ...

Page 26: ...put 3ch Talk T3 1 Apply 60dBm output from S S G modulation frequency 1KHz dev 0KHz 2 Confirm 2nd IF output so that the reading of RF VTVM is more than 15mV G Noise Squelch Confirmation 3ch Talk 1 Measure the SSG output level when the noise squelch changes from Low to High modulation frequency 1KHz dev 3kHz 2 Confirm that the SSG output level is 105dBm H Speaker Output Level confirmation 3ch Talk 1...

Page 27: ... 600mV 200mV Refer to Adjustment 10 2 Handset Item Value Refer to Remarks TX Frequency 49 860 MHz 0 1kHz ADJUSTMENTS HANDSET D at CH3 TX Power 2 5mW 0 5mW 3CH ADJUSTMENTS HANDSET E at CH3 Antenna soldering point 50 Load Data Modulation factor 4 0 kHz dev 6 0 kHz dev ADJUSTMENTS HANDSET J at CH3 MIC Modulation factor 2 7 kHz dev 3 5 kHz dev ADJUSTMENTS HANDSET I at CH3 MIC terminal 12mV Input SP Ou...

Page 28: ...28 ...

Page 29: ...46 610 2 46 630 49 845 49 845 46 630 3 46 670 49 860 49 860 46 670 4 46 710 49 770 49 770 46 710 5 46 730 49 875 49 875 46 730 6 46 770 49 830 49 830 46 770 7 46 830 49 890 49 890 46 830 8 46 870 49 930 49 930 46 870 9 46 930 49 990 49 990 46 930 10 46 970 49 970 49 970 46 970 13 EXPLANATION OF CPU DATA COMMUNICATION 13 1 STAND BY TALK TALK STAND BY 29 ...

Page 30: ... The channel is changed if the noise interferes with the conversation 13 2 Ringing 30 ...

Page 31: ...13 3 Changing the Channel 31 ...

Page 32: ... for transmitting and receiving of data Handset transmitting TX 36 Pin receiving RX 4 Pin Base Unit transmitting TX 17 Pin receiving RX 10 Pin 13 5 Waveform of DATA used for cordless transmission and reception 32 ...

Page 33: ...transmitted from the Handset to the Base Unit is combination of DATA 0 DATA 1 PSEUD The DATA which is transmitted from the Base Unit to the Handset is combination of DATA 0 DATA 1 PSEUD 13 5 1 Handset 13 5 2 Base Unit 33 ...

Page 34: ...unit consists of the following ICs as shown in BLOCK DIAGRAM CPU IC2 Controlling the whole system Forming analyzing all data signals ACK CMD signal etc All interfaces ex LED KEY SP Mic LCD Detector Circuit Charge Power Down Refer to EXPLANATION OF CPU DATA COMMUNICATION RF IC IC1 PLL Oscillator Detection Compress Expander 34 ...

Page 35: ...ly Circuit The power supply to the CPU Digital Analog and RF IC from AC Adaptor 12V is shown in the diagram below The base unit power supply is DC12V The handset s power is supplied from 3 6V battery Nickel Cadmium battery which is installed in the handset Power supply for transmitter is turned on by a press of Talk key on the handset During the stand by mode the unit stops transmitting but receiv...

Page 36: ...Adaptor power failure and maintains the unit security code Fig 1 16 3 Reset Circuit Base Unit After power supply from AC adaptor the VREG is input for making reset signal Refer to the below waveform Fig 2 Fig 3 36 ...

Page 37: ...tching Q701 of Handset The battery is charged in normal mode for 10 hours and then in trickle mode 16 5 Telephone Line Interface Function Bell signal detection ON OFF hook and pulse dial circuit Side tone circuit Bell signal detection and OFF HOOK circuit In the idle mode Q103 is open to cut the DC loop current and decrease the ring load When ring voltage appears at the Tip T and Ring R leads When...

Page 38: ...60 Side Tone Circuit Basically this circuit prevents the TX signal from feeding back to RX signal As for this unit TX signal feed back from Q11 is canceled by the cancellor circuit of AGC 16 6 Transmitter Receiver Base Unit and Handset are mainly consists of RF Radio Frequency IC and CPU Base Unit and Handset transmit receive voice signal and data signal through the antenna on carrier frequency Si...

Page 39: ...he receiver loudness is adjustable using LOUD key on the handset Q2 and Q3 control the volume When CPU VOL1 becomes low the volume becomes MID while CPU VOL1 2 become low the volume becomes HIGH TX data to Handset CPU VTX becomes low to turn on the transmission power transistor Q2 and CPU TX data sends data signal It is FM modulated by TXVCO and driven by RF AMP then transmitted to the handset 16 ...

Page 40: ...is output to CPU RX Data 16 6 3 RF signal operation control and PLL operation RF UNIT Base unit radio frequency signal received by antenna passes through duplexer DPX1 RF signal is amplified by RF AMP RF signal received from RF IC is mixed with RX local frequency at Mixer to generate 10 7 MHz wide band IF The reference frequency is generated by X1 10 245 MHz crystal VC1 is the reference frequency ...

Page 41: ...ERATION HANDSET 17 1 Reset Circuit Handset The power of handset is supplied by battery Whenever the battery is recharged or inserted the impulse at CHG becomes Reset signal through Q11 and sent to CPU Fig 4 Fig 5 41 ...

Page 42: ...Shortly every detected blocks are inside of RF IC The detected voltage is as follows Battery Low Battery voltage V Batt 3 57V The CPU detects this level and Recharge battery LED starts flashing Power Down Battery voltage V Batt 3 3V The output of RF IC P DOWN becomes low level then CPU stops working to keep the data CH number ID Code etc 42 ...

Page 43: ...Fig 6 18 CPU DATA Base Unit 18 1 IC2 43 ...

Page 44: ...19 CPU DATA Handset 19 1 IC2 44 ...

Page 45: ...20 HOW TO REPLACE FLAT PACKAGE IC 20 1 Preparation SOLDER 45 ...

Page 46: ...iron but beginner might damage foil by overheating Flux HI115 Specific gravity 0 863 Original flux will be replaced daily 20 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...

Page 47: ...ification Procedure of Bridge 1 Re solder slightly on bridged portion 2 Remove remained solder along pins employing soldering iron as shown in below figure 21 CABINET AND ELECTRICAL PARTS LOCATION BASE UNIT 47 ...

Page 48: ...22 CABINET AND ELECTRICAL PARTS LOCATION HANDET 48 ...

Page 49: ...23 ACCESSORIES AND PACKING MATERIALS 49 ...

Page 50: ...s governing parts and product retention At the end of this period the assembly will no longer be available 2 Important safety notice Components identified by the mark indicates special characteristics important for safety When replacing any of these components only use specified manufacture s parts 3 The S mark indicates service standard parts and may differ from production parts 4 RESISTORS CAPAC...

Page 51: ...Z2 PUSH BUTTON for KX TC1206TWS KX TC1206TWF KX TC1206TWP S 6 PQKE10335Z1 HOOK LEVER for KX TC1206TWB S 6 PQKE10335Z4 HOOK LEVER for KX TC1206TWS S 6 PQKE10335Z2 HOOK LEVER for KX TC1206TWF S 6 PQKE10335Z6 HOOK LEVER for KX TC1206TWP S 7 PQKF10534Y1 LOWER CABINET for KX TC1206TWB KX TC1206TWF S 7 PQKF10534Y2 LOWER CABINET for KX TC1206TWS KX TC1206TWP S 8 PQKM10509U1 UPPER CABINET for KX TC1206TWB...

Page 52: ...405 TRANSISTOR SI Q18 BB1G0390403 TRANSISTOR SI Q19 BB1G0390403 TRANSISTOR SI Q20 SB110390405 TRANSISTOR SI Q21 SB110390405 TRANSISTOR SI DIODES D1 SC15L414808 DIODE SI D2 BC2G0400400 DIODE SI D3 BC2G0400400 DIODE SI D4 BC2G0400400 DIODE SI D5 BC2G0400400 DIODE SI D6 BC2G0400400 DIODE SI DV1 BC6K0025101 DIODE SI ZD1 BC050474801 DIODE SI ZD10 SC4555C1506 DIODE SI ZD11 SV110201203 DIODE SI ZD2 BC050...

Page 53: ...ERS D7 PQVDDSP272M VARISTOR R107 CQ63110RJ21 VARIABLE RESISTOR RY1 DCR000105H7 RELAY SW1 DETP1200017 PUSH SWITCH VC1 CR00020RRT5 TRIMMER CAPACITOR RESISTORS R1 ERJ3GEYJ470 47 R2 ERJ3GEYJ331 330 R3 ERJ3GEYJ153 15k R4 ERJ3GEYJ822 8 2k R5 ERJ3GEYJ103 10k R6 ERJ3GEYJ103 10k R7 ERJ3GEYJ334 330k R8 ERJ3GEYJ103 10k R10 ERJ3GEYJ393 39k R12 ERJ3GEYJ101 100 R13 ERJ3GEYJ513 51k R14 ERJ3GEYJ103 10k R15 ERJ3GE...

Page 54: ...1 ERJ3GEYJ224 220k R62 ERJ3GEYJ104 100k R64 ERDS2TJ103 10k R68 ERJ3GEYJ104 100k R74 ERJ3GEYJ332 3 3k R75 ERJ3GEYJ103 10k R76 ERJ3GEYJ152 1 5k R77 ERJ3GEYJ203 20k R78 ERJ3GEYJ393 39k R79 ERJ3GEYJ823 82k R80 ERJ3GEYJ222 2 2k R81 ERJ3GEYJ164 160k R82 ERJ3GEYJ103 10k R83 ERJ3GEYJ103 10k R84 ERJ3GEYJ103 10k R85 ERJ3GEYJ103 10k R86 ERJ3GEYJ473 47k R87 ERJ3GEYJ103 10k R88 ERJ3GEYJ103 10k R89 ERJ3GEYJ103 ...

Page 55: ...1k R139 ERJ3GEYJ106 10M R140 ERJ3GEYJ183 18k R141 ERJ3GEYJ512 5 1k R142 ERDS2TJ220 22 R143 ERJ3GEYJ514 510k R144 ERDS2TJ206 20M R145 ERJ3GEYJ102 1k R146 ERJ3GEYJ153 15k R148 ERJ3GEYJ103 10k R149 ERJ3GEYJ182 1 8k R150 ERJ3GEYJ514 510k R152 ERDS2TJ206 20M R153 ERJ3GEYJ104 100k R154 ERJ3GEYJ470 47 R155 ERJ3GEYJ470 47 R156 ERJ3GEYJ470 47 R157 ERJ3GEYJ303 30k R159 ERJ3GEYJ104 100k R160 PQ4R10XJ000 0 S ...

Page 56: ...1H153KBV 0 015 C29 ECUV1C104KBV 0 1 C30 ECEA1HKA2R2 2 2 C31 ECUV1H103KBV 0 01 C32 ECEA1HU2R2 2 2 C33 ECUV1H101JCV 100p C34 ECUV1H151JCV 150p C35 ECUV1H180JCV 18p C36 ECUV1H101JCV 100p C37 ECUV1H151JCV 150p C38 ECEA1HU100 10 S C39 ECUV1H103KBV 0 01 S C40 ECUV1H270JCV 27p C41 ECEA1AU470 47 C42 ECEA1HU2R2 2 2 C43 ECUV1C104KBV 0 1 C44 ECUV1H472KBV 0 0047 C45 ECUV1H333KDV 0 033 S C46 ECUV1H102KBV 0 001...

Page 57: ...1 C82 ECUV1C104ZFV 0 1 C83 ECUV1H223KBV 0 022 S C84 ECUV1H103KBV 0 01 C85 ECUV1C104KBV 0 1 C86 ECUV1H103KBV 0 01 C88 ECUV1C104KBV 0 1 C9 ECUV1H471JCV 470p C90 ECUV1C683KBV 0 068 C92 ECUV1C104KBV 0 1 C93 ECUV1H562KBV 0 0056 C94 ECEA1CK101 100 S C96 ECUV1H103KBV 0 01 S C97 ECEA1HKS4R7 4 7 S C98 ECEA1CKS220 22 S C99 ECUV1H103KBV 0 01 S C101 ECUV1H562KBV 0 0056 C102 ECEA1EU221 220 C103 ECEA1AU470 47 C...

Page 58: ...INET for KX TC1206TWP S 106 PQSA10084Z ANTENNA for KX TC1206TWB KX TC1206TWF 106 PQSA10084Y ANTENNA for KX TC1206TWP KX TC1206TWS 107 PQSX10191R KEYBOARD SWITCH for KX TC1206TWB KX TC1206TWF 107 PQSX10191T KEYBOARD SWITCH for KX TC1206TWS KX TC1206TWP 108 PQXA36ASVC BATTERY 109 FH1T1200011 CUSHION URETHANE FORM 110 CG2P1200012 SPEAKER 111 FE4T1200019 SP PHONE 112 FH2T1200012 BUZZER SHEET 113 PQQT2...

Page 59: ...024501 CRYSTAL OSCILLATOR X2 BD8R3276805 CRYSTAL OSCILLATOR X3 BDRR0400007 CRYSTAL OSCILLATOR TRANSFORMERS T1 CLIP1200053 TRANSFORMER T3 CLIP1200169 TRANSFORMER T5 CLIP1200061 TRANSFORMER T6 CLIP1200088 TRANSFORMER OTHERS E101 CK15HC12G10 RINGER E102 CGAP1200019 MICROPHONE E103 EF2T1200022 CHARGE CONTACT VC1 CR00020RRT5 TRIMMER CAPACITOR RESISTORS R1 ERJ3GEYJ331 330 R2 ERJ3GEYJ153 15k R3 ERJ3GEYJ6...

Page 60: ...k R48 ERJ3GEYJ223 22k R49 ERJ3GEYJ473 47k R50 ERJ3GEYJ822 8 2k R51 ERJ3GEYJ272 2 7k R52 ERJ3GEYJ222 2 2k R53 ERJ3GEYJ820 82 R54 ERJ3GEYJ104 100k R55 ERJ3GEYJ390 39 R56 ERJ3GEYJ222 2 2k R57 ERJ3GEYJ102 1k R58 ERJ3GEYJ470 47 R59 ERJ3GEYJ222 2 2k R60 ERJ3GEYJ222 2 2k R61 ERJ3GEYJ331 330 R62 ERJ3GEYJ222 2 2k R63 ERJ3GEYJ103 10k R64 ERJ3GEYJ103 10k R65 ERJ3GEYJ331 330 R66 ERJ3GEYJ222 2 2k R67 ERJ3GEYJ2...

Page 61: ... 1k CAPACITORS C1 ECEA1EK470 47 S C2 ECUV1C473KBV 0 047 C5 ECUV1C103KBV 0 01 C6 ECUV1H102KBV 0 001 C7 ECUV1C103KBV 0 01 C8 ECUV1C473KBV 0 047 C9 ECUV1H102KBV 0 001 C12 ECEA1HKA2R2 2 2 C13 ECUV1H270JCV 27p C14 ECUV1H103KBV 0 01 C15 ECEA1CKA100 10 C16 ECUV1C473KBV 0 047 C17 ECUV1H102KBV 0 001 C18 ECEA1HKA2R2 2 2 C21 ECUV1H223KBV 0 022 S C22 ECUV1H103KBV 0 01 C23 ECUV1H102KBV 0 001 C24 ECUV1H120JCV 1...

Page 62: ...9p C60 ECUV1H270JCV 27p C61 ECUV1C103KBV 0 01 C62 ECUV1H390JCV 39p C63 ECEA1CK101 100 S C64 ECUV1H103KBV 0 01 C65 ECUV1H150JCV 15p C66 ECUV1H150JCV 15p C69 ECUV1C103KBV 0 01 C70 ECUV1H270JCV 27p C71 ECUV1H270JCV 27p C72 ECUV1C103KBV 0 01 C73 ECUV1C103KBV 0 01 C74 ECUV1C473KBV 0 047 C75 ECUV1H103KBV 0 01 C76 ECUV1H471JCV 470p C77 ECUV1H471JCV 470p C84 ECUV1C103KBV 0 01 C85 ECUV1A105ZFV 1 C86 ECUV1C...

Page 63: ... any of these components use only the manufacturer s specified parts 25 2 Handset SCHEMATIC DIAGRAM Handset 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 26 SCHEMATIC DIAGRAM Base Unit 26 1 Base Unit 26 2 RF Unit Base Unit 27 SCHEMATIC DIAGRAM Handset 2...

Page 64: ...H M KXTC1206TWB KXTC1206TWS KXTC1206TWF KXTC1206TWP 64 ...

Page 65: ...3 Q5 SOT 23 EBC C54 12P C0603 C42 47U 10V EC5 2 5 T6 1434 IFT 7 C47 333 C0603 C61 104 C0603 DV1 VCD2 R44 39K R0603 R35 47K R0603 R39 220K R0603 R41 100K R0603 R7 NA R0603 X1 10 245MHZ XTAL 10A C56 5P C0603 R34 220K R0603 C46 473 C0603 R28 390K R0603 C39 150P C0603 C21 223 C0603 C1 47UF 10V EC5 2 5 L6 0 68uH L2 5 C36 18P C0603 C8 473 C0603 C7 104 C0603 C37 10U 16V EC5 2 5 CF2 455E FILTER 2 1 5 2 3 ...

Page 66: ...R117 C120 R88 R32 C36 R176 R26 C40 R80 C48 R15 C59 R56 R53 R42 C49 R175 R182 C5 C14 R33 R54 R51 R155 R110 R112 R149 C101 R150 R139 R148 R86 R170 R44 C54 C61 R50 C11 R10 C18 C4 C28 R3 Q21 Q8 R5 R4 R74 R167 R156 R1 R58 R98 TP R93 C25 R7 C2 C9 R22 C43 C45 C37 C34 C93 C79 C121 C39 R13 R9 R8 C13 C24 R12 C23 C29 C19 C27 R36 C52 C46 Q14 Q17 Q3 C110 Q4 E9 E21 E23 E24 Q5 Q6 Q20 Q2 C51 R154 R40 R52 R45 R38 ...

Page 67: ...IC5 ...

Page 68: ...0 R88 R32 C36 R176 R26 C40 R80 C48 R15 C59 R56 R53 R42 C49 R175 R182 C5 C14 R33 R54 R51 R155 R110 R112 R149 C101 R150 R139 R148 R86 R170 R44 C54 C61 R50 C11 R10 C18 C4 C28 R3 Q21 Q8 R5 R4 R74 R167 R156 R1 R58 R98 TP R93 C25 R7 C2 C9 R22 C43 C45 C37 C34 C93 C79 C121 C39 R13 R9 R8 C13 C24 R12 C23 C29 C19 C27 R36 C52 C46 Q14 Q17 Q3 C110 Q4 E9 E21 E23 E24 Q5 Q6 Q20 Q2 C51 R154 R40 R52 R45 R38 ZD5 R116...

Page 69: ...IC2 150Ω AF Volt Meter H Oscilloscope G Noise Squelch A Battery Low 47µF AF Generator ...

Page 70: ... R35 R25 C28 R13 R34 C52 R38 C59 E274 E273 Q6 Q5 E275 E276 C60 R47 R43 R97 C89 C2 C13 C21 R9 C6 C88 R49 C61 R50 R24 C40 C41 C44 C36 C35 R26 R40 R44 C57 C50 C62 R52 C55 IC1 TXPOWER TXGND 50Ω FM Deviation Meter Audio Analyzer Frequency Counter RF Millivolt Meter I J D E SSG 43 820MHz DC Volt Meter B TX VCO RF Volt Meter F DC Power Supply DC Volt Meter C RX VCO ...

Page 71: ...IC2 G Noise Squelch A Battery Low VDD CPU 40 CHG DET CPU 37 TX DATA CPU 36 TX DATA DV1 ...

Page 72: ... CH MIC1 FLASH LOUD RINGER PROG 3 6 9 AUTO C22 R1 C24 C47 R35 R25 C28 R13 R34 C52 R38 C59 E274 E273 Q6 Q5 E275 E276 C60 R47 R43 R97 C89 C2 C13 C21 R9 C6 C88 R49 C61 R50 R24 C40 C41 C44 C36 C35 R26 R40 R44 C57 C50 C62 R52 C55 IC1 TXPOWER 2nd Mix RF IC 36 TXGND TX VCO RX VCO IF IN RF IC 32 V Bat RF IC 33 ...

Page 73: ...A POWER CONTROL Q2 5V REGULATOR Q18 Q19 RF AMP Q3 Q4 T5 TX VCO Q5 T6 DV1 PLL OSC RF FILTER CF1 CF2 10 7MHz 455kHz ANTENNA BLOCK DIAGRAM BASE UNIT LED Q21 LED1 RESET DTC Q9 CHARGE DTC Q7 EXP 17 14 TEL LINE AMP Q11 IC3 TEL LINE POWER SUPPLY RESET CHARGE CHARGE TERMINAL CHARGE CONTROL Q14 Q17 AC DOWN DTC Q8 DC IN 12V 150mA COM DC 5V CONTROL LINE AUDIO SIGNAL TEL LINE SW T7 AGC Q13 Q14 IC3 DIODE BRIDG...

Page 74: ...3 15K R0603 C92 104 C0603 R141 5K1 R0603 R119 82K R0603 R143 510K R0603 R148 10K R0603 R149 1K8 R0603 C97 4U7 50V EC5AB R150 510K R0603 Q19 TO 92 EBC C101 562 C0603 C98 22uF 16V EC5 2 5 R60 22K R0603 R146 15K R0603 D2 D10B R171 1K R0603 D4 D10B D3 D10B R127 20M 1 4W R10 R91 150K R0603 R139 10M R0603 R157 30K R0603 R117 10M R0603 Q16 SOT 23 R134 1K R0603 C88 104 C0603 R177 100K R0603 Q13 SOT 23 C84...

Page 75: ...C61 104 C0603 R36 220K R0603 R38 100K R0603 R31 47K R0603 C54 5P C0603 R9 NA R0603 X1 10 245MHZ XTAL 10A R30 100K R0603 R25 200K R0603 C37 150P C0603 C44 472 C0603 C24 223 C0603 C1 47UF 10V EC5 2 5 L10 0 68uH L5 R52 4M7 R0603 C11 473 C0603 C35 18P C0603 C7 102 C0603 C38 10U 16V EC5 5 CF2 455E FILTER 2 1 5 2 3 4 C8 104 C0603 C15 2U2 50V EC5 5 R23 100K R0603 C16 27P C0603 C26 8 2P C0603 R14 R0603 10...

Page 76: ... CONTROL PLL DATA CLK EN RX DATA TX DATA POWER CONTROL Q4 BATTERY 3 9V RF AMP Q5 T5 TX VCO Q6 T6 DV1 PLL OSC RF FILTER CF1 CF2 ANTENNA BLOCK DIAGRAM HANDSET LED Q8 LED 1 4 RESET Q11 DIODE BRIDGE D1 CHARGE DTC IC2 PING37 BUZZER Q7 BZ1 KEY BOARD EXP SPEAKER REC1 MIC MIC1 CHARGE TERMINAL DIODE BRIDGE Q9 COM DC 3 9V CONTROL LINE AUDIO SIGNAL ...

Page 77: ...A R0603 Q7 STO 23 BATT1 3V6 300mA CNT2P 2 5 1 2 C73 104 C0603 Q11 SOT 23 R77 10K R0603 LED1 GREEN LED SQ LED2 GREEN LED SQ LED3 GREEN LED SQ LED4 GREEN LED SQ L5 12uH L7 5 Q9 SOT 23 IC2 QFP 44P 32 31 30 29 27 26 25 24 1 2 3 4 5 6 7 8 9 10 11 28 33 12 13 14 15 16 17 18 19 20 21 22 23 34 35 36 37 38 39 40 41 42 43 44 P13 P12 P11 P10 P50 P67 P66 P65 P73 P72 P71 P70 P07 P06 P05 P04 P03 P02 P01 P51 P14...

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