Kenwood TK-3402 Service Manual Download Page 1

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SERVICE MANUAL

This product complies with the RoHS directive for the European market.

This product uses Lead Free solder.

UHF FM TRANSCEIVER

TK-3402/3406/3407

CONTENTS

GENERAL ....................................................2

SYSTEM SET-UP .........................................3

REALIGNMENT ...........................................3

DISASSEMBLY FOR REPAIR .....................6

CIRCUIT DESCRIPTION .............................9

SEMICONDUCTOR DATA .........................14

COMPONENTS DESCRIPTION ................15

PARTS LIST ...............................................16

EXPLODED VIEW ......................................22

PACKING ...................................................23

ADJUSTMENT ...........................................25

PC BOARD

TX-RX UNIT (X57-8320-11) ....................30

SCHEMATIC DIAGRAM ............................34

BLOCK DIAGRAM .....................................38

LEVEL DIAGRAM ......................................40

SPECIFICATIONS ......................................41

Button knob
(SIDE1/SIDE2)
(K2

613-03)

Knob (Selector)
(K2

615-03)

Knob (Volume)
(K2

614-03)

Plastic cabinet assy
(A02-4200-03)

Button knob (PTT)
(K2

612-03)

Whip antenna
(T

0-1041-25) : TK-3402

(K2,P only)

K2,P,M2 versions

Summary of Contents for TK-3402

Page 1: ...MBLY FOR REPAIR 6 CIRCUIT DESCRIPTION 9 SEMICONDUCTOR DATA 14 COMPONENTS DESCRIPTION 15 PARTS LIST 16 EXPLODED VIEW 22 PACKING 23 ADJUSTMENT 25 PC BOARD TX RX UNIT X57 8320 11 30 SCHEMATIC DIAGRAM 34 BLOCK DIAGRAM 38 LEVEL DIAGRAM 40 SPECIFICATIONS 41 Button knob SIDE1 SIDE2 K29 9613 03 Knob Selector K29 9615 03 Knob Volume K29 9614 03 Plastic cabinet assy A02 4200 03 Button knob PTT K29 9612 03 W...

Page 2: ...erminated SHUT OFF and DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere This equipment should be serviced by a qualified techni cian only SERVICE This transceiver is designed for easy servicing Refer to the schematic diagrams printed circuit board views and alignment procedures contained within Model Type TX RX unit Frequency range Remarks TK 3402 K2 P X57 ...

Page 3: ... communication between the trans ceiver and PC Data programming mode Used to read and write frequency data and other features to and from the transceiver PC test mode Used to check the transceiver using the PC This feature is included in the FPU Wireless clone mode Used to transfer programming data from one transceiver to another 2 How to Enter Each Mode Mode Operation User mode Power ON PC mode R...

Page 4: ... software in the computer The KPG 22U driver runs under Windows XP Vista or 7 The latest version of the USB driver is available for down load from the following URL http www kenwood com usb com This URL may change without notice 3 5 Programming Software KPG 158D Ver 2 00 or later description The FPU is the programming software for the transceiver supplied on a CD ROM This software runs under windo...

Page 5: ...hen it is returned to User mode 9 When the cloning is successful the target unit s Scan and Key lock functions will return to their default values Scan OFF Key lock OFF Note The dealer can clone data to two or more transceivers by repeating the above procedures If the transceivers wireless clone Mode is configured as Disabled the transceiver cannot enter Clone mode The table shown below will cover...

Page 6: ...screws g fixing the TX RX unit 2 Remove the solder of the antenna terminal with a solder ing iron h 3 Remove the solder of the positive terminal with a solder ing iron i Note You can remove the TX RX unit from the chassis without removing the solder at the positive terminal However in this case you can not attach the packing G53 2218 03 that is on the positive terminal to the chassis in assembling...

Page 7: ...e where the two tabs come below the case surface there is a possibility of damaging the two tabs A thin spring Shaft Tow tabs A thick spring a b d c 6 Assembling the Battery Release Lever 1 Place the lever b onto the stopper a 2 Place the thick spring c onto the lever 3 Hook the right and left ends of the thin spring d onto the tabs of the stopper then place the thin spring onto the lever e 4 Slid...

Page 8: ... reposition the packing with your fingers a b c c 9 Attaching the Antenna Receptacle to the Chassis Screw the antenna receptacle to the chassis in the or der shown in the drawing so that the antenna receptacle comes to the center of the case hole Tighten this screw second Tighten this screw first 10 The Nuts of the Volume Knob and Channel Knob Note that the shapes colors and heights of nuts of the...

Page 9: ...05 BPF1 BPF Q405 RF AMP XF400 MCF Q403 IF AMP IC709 AF PA INT BPF1 1st Local BPF CF401 2 1 Front End RF Amplifier Circuit The signal coming from the antenna passes through the transmit receive switching diode circuit D201 D202 D203 and D204 and a BPF L415 and L416 and is then ampli fied by the RF amplifier Q405 The resulting signal passes through a BPF L410 L411 and L413 and goes to the mixer Thes...

Page 10: ...a case of exter nal speaker amplifier In the case of internal loudspeaker amplifier IC702 sends a high signal to the AFSW line and turns IC709 on through Q711 and Q714 3 Transmitter System 3 1 Microphone Amplifier Circuit The signal from the microphone is limited by the AGC circuit which is composed of D700 D701 Q705 Q706 and the mute switch Q704 IC705 is composed of a high pass filter low pass fi...

Page 11: ...ded down and compared at the phase compar ator The pulsed output signal of the phase comparator is ap plied to the charge pump and transformed into a DC signal in the loop filter LPF The DC signal is applied to the CV of the VCO and locked to keep the VCO frequency constant PLL data is output from PLL_LE pin 72 PLL_DATA pin 73 PLL_CLK pin 74 and PLL_PS pin 70 of the MCU IC702 The data is input to ...

Page 12: ...ignaling Circuit 6 1 Encode Low speed data QT DQT Low speed data is output from pin2 of the MCU The sig nal passes through the low pass CR filter and goes to the audio processor IC705 The signal is mixed with the audio signal and goes to the VCO and TCXO X1 modulation in put after passing through the D A converter inside the audio processor IC705 for BAL adjustment High speed data 2 tone 5 tone Hi...

Page 13: ... of the MCU 50C is a common 5V and is output when SAVE is not set to ON 50R is 5V for reception and output during reception 50T is 5V for transmission and output during transmis sion 50V is 5V for the SP MIC connector 33B is 3 3V for the baseband IC IC705 IC601 AVR IC703 AVR IC603 AVR Q601 50T SW Q602 50R SW IC702 MCU IC600 DET IC605 DET B SB BATT 33M 50R Q606 33MS SW 33MS 50T 50M 33B 50V F601 1A ...

Page 14: ... For Model check MCU F363BEDFEKDLF TX RX unit IC702 Pin No Signal Name I O Function 41 OPTDET I Option detection 42 GRNLED O Green LED light control Hi LED ON 43 REDLED O Red LED light control Hi LED ON 44 MIC_MT O MIC mute 45 EXTSPSW O Speaker mute 46 MINVOL O Minimum volume control 47 DICSW O APC voltage discharge switch 48 EN1 I Encoder detection 1 49 EN3 I Encoder detection 3 50 EN2 I Encoder ...

Page 15: ...r Q405 FET RX RF amplifier Q600 TRANSISTOR DC switch BUSY LED Q601 FET DC switch 50T Ref No Use Function Operation Condition Q602 FET DC switch 50R Q603 FET DC switch MIN VOL Q604 605 TRANSISTOR DC switch TX BLUE LED Q606 FET DC switch 33MS Q701 702 TRANSISTOR Beat shift switch Q703 FET Level shift TXD Q704 TRANSISTOR MIC mute switch Q705 706 TRANSISTOR MIC AGC AMP Q707 FET Level shift RXD Q708 TR...

Page 16: ... 2B J82 0128 05 FPC VOL SEL 49 1A J99 0779 04 ADHESIVE SHEET PTT 51 1A K29 9612 03 BUTTON KNOB PTT 52 1A K29 9613 03 BUTTON KNOB SIDE1 2 53 1A K29 9614 03 KNOB VOLUME 54 1A K29 9615 03 KNOB SELECTOR A 3A N09 6621 05 PAN HEAD SCREW B 2B N14 0849 05 CIRCULAR NUT VOLUME C 2B N14 0869 05 CIRCULAR NUT SELECTOR D 2B N19 2214 05 SPECIAL WASHER VOL SEL E 2B N30 2604 48 PAN HEAD MACHINE SCREW F 2A 2B N83 2...

Page 17: ...HIP C 0 10UF K C263 CK73HB1H271K CHIP C 270PF K C265 CC73GCH1H2R5B CHIP C 2 5PF B C266 CC73GCH1H040B CHIP C 4 0PF B C267 CC73GCH1H070B CHIP C 7 0PF B C268 CK73GB1H471K CHIP C 470PF K C269 CK73HB1H271K CHIP C 270PF K C270 CC73HCH1H030B CHIP C 3 0PF B C271 CC73GCH1H050B CHIP C 5 0PF B C272 CC73GCH1H300J CHIP C 30PF J C273 CC73GCH1H010B CHIP C 1 0PF B C274 CC73GCH1H030B CHIP C 3 0PF B C275 CC73GCH1H0...

Page 18: ...J106K CHIP C 10UF K C742 CK73HB1H271K CHIP C 270PF K C743 CK73HB1H103K CHIP C 0 010UF K C744 CK73GB0J106K CHIP C 10UF K C745 CK73HB1A104K CHIP C 0 10UF K C746 CK73HB1H271K CHIP C 270PF K C747 CK73HB1H152K CHIP C 1500PF K C748 CK73HB1A105K CHIP C 1 0UF K C749 750 CC73HCH1H101J CHIP C 100PF J C751 CC73HCH1H470J CHIP C 47PF J C754 CC73HCH1H101J CHIP C 100PF J C756 CK73HB1A105K CHIP C 1 0UF K C757 CK7...

Page 19: ...CHIP COM 47K J 1 16W CP22 RK75HA1J102J CHIP COM 1 0K J 1 16W CP23 RK75HA1J473J CHIP COM 47K J 1 16W CP24 RK75HA1J102J CHIP COM 1 0K J 1 16W CP26 RK75HA1J473J CHIP COM 47K J 1 16W CP27 RK75HA1J474J CHIP COM 470K J 1 16W CP28 RK75HA1J103J CHIP COM 10K J 1 16W R1 RK73HB1J103J CHIP R 10K J 1 16W R2 RK73HB1J334J CHIP R 330K J 1 16W R3 5 RK73HB1J000J CHIP R 0 J 1 16W R7 RK73HB1J000J CHIP R 0 J 1 16W R8 ...

Page 20: ...100K J 1 16W R608 RK73GB2A271J CHIP R 270 J 1 10W R609 RK73HB1J102J CHIP R 1 0K J 1 16W R610 613 RK73HB1J104J CHIP R 100K J 1 16W R614 RK73HH1J824D CHIP R 820K D 1 16W R615 RK73HH1J394D CHIP R 390K D 1 16W R701 702 RK73HH1J103D CHIP R 10K D 1 16W R703 RK73HB1J103J CHIP R 10K J 1 16W R705 RK73HB1J103J CHIP R 10K J 1 16W R708 RK73HB1J102J CHIP R 1 0K J 1 16W R710 RK73HB1J102J CHIP R 1 0K J 1 16W R71...

Page 21: ...SL E1 MOS IC IC3 BD7542FVM MOS IC IC200 NJM12904RB1 MOS IC IC400 NJM2591V BI POLAR IC IC600 XC61CN4502M G MOS IC IC601 XC6209B502P G MOS IC IC602 MM1856A50N BI POLAR IC IC603 XC6209B502P G MOS IC IC604 MM1856A33N BI POLAR IC IC605 BU4830F MOS IC IC700 EX25064ATA00A ROM IC IC702 F363BEDFEKDLF MCU IC703 MM1856A33N BI POLAR IC IC704 BU7465HFV MOS IC IC705 CD686AQ3 MOS IC IC706 BU7465HFV MOS IC IC707 ...

Page 22: ...N14 0869 05 D N19 2214 05 E M2 6 x 4 N30 2604 48 F M2 x 5 N83 2005 48 Fx12 A M2 x 5 N09 6621 05 14 15 20 21 26 32 46 51 Model name plate CF401 22 29 30 Parts with the exploded numbers larger than 700 are not supplied If a part reference number is listed in a box on the exploded view of the PCB that part does not come with the PCB These parts must be ordered separately 7 6 ...

Page 23: ...05 Protection bag 58 AC adapter W08 1247 25 K2 W08 1326 05 P W08 1327 05 M2 47 Belt clip J29 0734 15 43 Holder SP MIC J19 5577 03 4 Cap B09 0758 03 55 Screw set N99 2089 05 41 Packing fixture H12 4319 05 42 Item carton case 703 Battery assy 704 Pamphlet 59 Charger W08 1249 35 K2 W08 1331 05 P M2 57 Whip antenna T90 1041 25 K2 P only 12 Stopper SEL D32 0456 03 H52 2589 01 ...

Page 24: ...larger than 700 are not supplied 3 2 1 D C 8 Instruction manual 705 Protection bag 47 Belt clip J29 0734 15 43 Holder SP MIC J19 5577 03 4 Cap B09 0758 03 55 Screw set N99 2089 05 B62 2480 00 709 Item carton case 706 Protection bag 12 Stopper SEL D32 0456 03 706 Pamphlet ...

Page 25: ... Useful if ammeter equipped The test equipment which is not used for adjustment is contained in this table Antenna connector adapter The antenna connector of this transceiver uses an SMA terminal Use an antenna connector adapter SMA f BNC f or SMA f N f for adjustment The adapter is not provided as an option so buy a commercially available one Repair Jig Chassis Use jig Chassis for repairing the t...

Page 26: ...ingle Tone 1000Hz 14 2 Tone A 304 7Hz B 3106 0Hz 2 Tone A 304 7Hz duration 1sec B 3106 0Hz duration 3sec 15 None DTMF Tone 1477Hz 16 Single Tone 979 9Hz Single Tone 979 9Hz Duration 5 sec 17 None MSK PN9 18 None DTMF Code 3 19 5 Tone CCIR12345 5 Tone CCIR12345 20 Single Tone 1200Hz Single Tone 1200Hz Note No 19 and 20 can be selected only for M type series transceiver using FPU Ver 2 00 onwards Pr...

Page 27: ...ions Remarks Test equipment Unit Terminal Unit Parts Method 1 Frequency 1 TEST CH Center PTT ON f counter ANT TX RX FPU 435 100MHz 50Hz 2 High Power 1 TEST CH Low Low Center High High 5 points 2 BATT terminal voltage 7 5V 3 PTT ON Power meter Ammeter FPU 5 0W 0 1W 2 0A or less 3 Low Power 1 TEST CH Low Center High 3 points 2 BATT terminal voltage 7 5V 3 PTT ON 1 0W 0 1W 1 0A or less 4 DQT Balance ...

Page 28: ...15kHz HPF OFF 3 PTT ON 1 5kHz 50Hz Note for the Max Dev DQT Dev QT Dev DTMF Dev and MSK Dev 1 If select the item without Wide or Narrow the alignment will be align according to Narrow Band Wide band will automatically update by calculation using Narrow band value 2 If select the item with Wide or Narrow a If wide band is selected the alignment only will be done for wide band b If Narrow band is se...

Page 29: ... Mod Dev 3 0kHz Narrow 1 TEST CH Low Center High 3 points 2 SSG otuput 114dBm AF Freq 1kHz SSG MOD 1 5kHz 4 Low RSSI Note Wide 1 TEST CH Low Center High 3 points 2 SSG otuput 120dBm AF Freq 1kHz Mod Dev 3 0kHz Narrow 1 TEST CH Low Center High 3 points 2 SSG otuput 120dBm AF Freq 1kHz SSG MOD 1 5kHz 5 High RSSI Note Wide 1 TEST CH Low Center High 3 points 2 SSG otuput 80dBm AF Freq 1kHz Mod Dev 3 0...

Page 30: ...C720 C724 C725 R7 C729 R768 C735 R773 R774 C740 C741 C742 R780 R783 C747 R784 R785 R786 R787 R789 C754 R790 C756 Q601 C R795 Q602 R796 Q606 D700 D701 D702 D703 C763 C764 C765 C766 C767 C768 C769 L600 C770 C771 C772 C774 C775 C777 CN1 CN2 IC700 C780 IC702 1 20 41 60 21 40 80 61 C782 IC706 C787 C790 R776 Ref No Address Ref No Address Ref No Address Ref No Address Ref No Address Ref No Address 9C 7S ...

Page 31: ... C628 C630 C631 C249 C252 C258 C263 D601 D602 D604 IC200 Q705 Q711 Q713 L700 Q714 L701 Q715 Q716 CP24 CP28 R703 R705 R718 R719 R723 CN708 CN709 R725 R726 R732 C704 R744 R746 C717 R757 R759 C720 F601 R760 C724 R761 R762 R763 R765 R767 R768 R769 C730 C732 R770 C734 C735 R772 C737 C743 C744 C745 C746 C747 R784 C748 Q209 C749 R789 Q210 C750 C751 C754 C756 R792 C757 R793 Q600 C758 R794 C759 Q603 Q604 Q...

Page 32: ... C471 C472 Q703 C473 C280 C474 C475 C476 Q707 C477 C478 C480 C481 C483 J601 R751 R755 C736 C739 Q201 Q203 Q205 R781 Q206 R782 Q207 Q208 R788 Q405 L204 L205 L206 L207 L208 L209 C762 L211 L212 L213 L216 L217 L218 L219 L41 L413 L41 L220 L415 L416 L417 L420 IC704 R205 R207 C816 C482 Ref No Address Ref No Address Ref No Address Ref No Address Ref No Address Ref No Address 7R 9M 8N 9M 9N 7N 9M 9L 9M 7L ...

Page 33: ... C429 C813 C430 C431 C432 S603 C435 C437 C438 C439 C632 C2 C3 C4 C440 C441 C6 C442 C7 C443 C8 C444 C9 C445 C446 C447 C448 C449 D1 D4 C450 D5 C451 C452 D7 C453 C454 D9 C455 C456 C457 C458 C459 D400 C460 D401 C461 D402 4 C465 Q703 Q708 IC400 D10 D11 D12 D13 D14 D15 CF401 L1 L2 CP26 L3 L4 R702 L7 L8 L9 L12 L13 L14 L15 L16 L17 L18 L19 L21 L23 L24 L25 IC2 L26 IC3 L27 R10 R11 R12 R13 R16 R17 R18 R740 R1...

Page 34: ... 0 01u C601 1u C607 1u C18 270p R615 390k C616 270p R2 330k C605 1u F600 IC604 MM1856A33N 1 2 3 VIN GND CoNT 4 NC 5 VoUT C603 1u R610 100k S601 R607 100k R614 820k R603 100 C628 270p C625 270p C620 270p S602 S603 Q605 LTC014EEBFS8 Q600 LTC014EEBFS8 Q604 Q604 605 LTC014EEBFS8 SSM3K127TUT Q603 IC2 MB15E03SL E1 1 oSCIN 2 oSCoUT 3 VP 4 VCC 5 Do 6 GND 7 XFIN 8 FIN Do FIN 9 10 11 12 13 14 15 16 CLoCK DA...

Page 35: ...3 VCC 14 BSHIFT 15 CML_IRQ 16 17 INT0 18 19 NC 20 21 22 NC 23 NC 24 TXD TXD 25 RXD 26 EM_SCLK 27 NC 28 29 PTT 30 NC 31 32 33 NC 34 EMP 35 LPSW 36 37 NC 38 NC 39 CE 40 MODEL 41 42 GRNLED 43 REDLED 44 45 46 MINVOL 47 DICSW DICSW 48 49 50 51 52 53 54 APCSW 55 SCLK_EEP 56 SDATA_O_EEP 57 EEP_WP 58 SDATA_I_EEP 59 EEP_CS 60 TH_DET 61 QT DQT IN 62 HSDDEC 63 BATT 64 CVIN 65 66 67 68 NC 69 NC 70 71 72 73 74...

Page 36: ...80k D13 KDV214E P C413 1800p R744 15 RSSI RSSI C756 1u C63 5p IC703 MM1856A33N 1 VIN 2 GND 3 CoNT 4 NC 5 VoUT KTC4075E Y GR Q704 C404 22p R44 22 C763 0 1u R789 10k R761 0 C78 13p R409 2 2k C749 100p C47 20p R773 10k C59 1u L3 C58 4 5p R401 100 C741 10u C754 100p D701 KDR731 C770 270p C430 2p C750 100p R405 56k R207 0 KTC4075E Y GR Q4 C734 10u C79 8p R35 150 C737 1u R785 2 7k R415 100 C418 0 01u C7...

Page 37: ...2 LTC044EEBFS8 R438 100k C457 270p R219 820 2SB1694 Q710 C442 1p R795 47k C472 270p L213 C802 270p C780 270p R432 470k C783 1u J601 INT SP PTT RXD MICIN MICO OPTDET 50V AE TXD NC NC SPO R238 150k D204 HVC131 R226 4 7k C784 2 2u R793 1 8k C226 270p C762 270p C276 0 75p R232 18k C234 33p C461 270p C787 0 1u C466 270p D200 UDZW5 1 B R781 6 8k R247 100k C440 5p R442 470k SSM3K15AFS F Q209 C218 0 1u C7...

Page 38: ...IC703 MM1856A33N 50C 50CC IC603 XC6209B502P G 50V 50VC D600 RB521S 30 33M Q606 SSM3J36TUT IC600 XC61CN4502M G INT D605 RKZ5 1B2KG RESET IC605 BU4830F 33MSC 33MS D603 GN1G BATT 7 5V EN2 EN4 EN3 EN1 PTT RXD PF1 PF2 SB D604 B30 1790 05 B30 2315 05 D602 D601 B30 2314 05 Q600 LTC014EEBFS8 BLULED GRNLED REDLED SCLK_EEP SDATA_I_EEP BSHIFT 19 2MHz IC702 F363BEDFEKDLF IC700 EX25064ATA00A CML_IRQ CML CSN SD...

Page 39: ...N BSHIFT 19 2MHz IC704 BU7465HFV AUXDAC2 33MS 33B CML CSN SCLK_CML CML SDATA_O_CML MICFB Q706 2SA1586 Y GR F Q705 2SC4116 GR F VOX IC706 BU7465HFV D702 1SS302 D703 MC2850 MIC VOLOUT DETAF IC707 TA7368PF Q713 2SK3577 A Q716 2SK3577 A Q710 2SB1694 Q714 2SB1132 Q R SB 50M Q712 LTC044EEBFS8 EXTSPSW INTSPSW 1st Local 50T APCSW 2nd Local 50 4MHz 400MHz 470MHz ANT CVADJ Freq HSDENC AUXDAC2 PC 349 15MHz 4...

Page 40: ...dBm N 115 0dBm W 107 0dBm N 106 0dBm W 109 0dBm N 108 0dBm W 118 5dBm N 118 0dBm G1 D G1 D W 120 0dBm N 119 5dBm 21 IC705 BASEBAND IC CML 20 24 Q9 Q10 C268 Q208 FINAL FET D203 D204 Q201 PRE DRIVE AMP 20 W N 87 2mVrms W 138 3mVrms N 69 1mVrms TX VCO H 5W L 1W C219 Q206 DRIVE FET 8 09dBm H 17 75dBm L 10 08dBm N 107 5dBm To make measurements in the AF section connect the AC level meter ANT input 53dB...

Page 41: ... 1 32 D mm in 281g 9 9oz RECEIVER Measurements mode per TIA EIA 603 Sensitivity EIA 12dB SINAD 0 25µV Wide 0 28µV Narrow Adjacent CH Selectivity 70dB Wide 60dB Narrow Intermodulation Distortion 70dB Wide 60dB Narrow Spurious Response 70dB Audio Output 500mW at 8Ω less than 10 distortion External speaker 1 0W at 12Ω less than 10 distortion Internal speaker TRANSMITTER Measurements mode per TIA EIA ...

Page 42: ...TK 3402 3406 3407 ...

Page 43: ...36 R737 R738 R739 C700 C704 C705 R743 R744 R746 X700 C710 C711 C717 C718 C719 R756 R757 R759 F600 C720 F601 R760 C724 R761 C725 R762 R763 R765 C729 R767 R768 R769 C730 C732 R770 C734 C735 R772 R773 C737 R774 C740 C741 C742 C743 R780 C744 C745 C746 R783 C747 R784 C748 Q209 R785 C749 R786 R787 R789 Q210 C750 C751 C754 R790 C756 R792 C757 R793 Q600 C758 R794 Q601 C759 R795 Q602 R796 Q603 Q604 Q605 Q6...

Page 44: ...D401 C461 D402 D403 C270 D404 C464 C271 D405 C465 C272 C466 C273 C274 C468 C275 C469 C276 C278 C279 C470 C471 C472 Q703 C473 C280 C474 C475 C476 Q707 C477 Q708 C478 IC400 C480 C481 C483 D10 D11 D12 D13 D14 J601 D15 CF401 L1 L2 CP26 L3 L4 R702 L7 L8 L9 L12 L13 L14 L15 L16 L17 L18 L19 L21 L23 L24 L25 IC2 L26 IC3 L27 R10 R11 R12 R13 R16 R17 R18 R740 R19 R20 R21 R22 R24 Q1 R25 Q2 R26 Q3 R27 Q4 R28 Q5 ...

Page 45: ...06 KTC4075E Y GR Q704 R816 1k R701 10k D601 B30 2314 05 C236 10p C404 22p L410 8 2n L412 R44 22 D400 HVC350B Q712 LTC044EEBFS8 R438 100k C457 270p R219 820 C763 0 1u R789 10k TH200 100k 2SB1694 Q710 R740 4 7k R761 0 C442 1p R795 47k C78 13p R409 2 2k C472 270p C749 100p L213 C47 20p R773 10k C802 270p R18 680 C59 1u C780 270p IC602 MM1856A50N 1 2 3 VIN GND CoNT 4 NC 5 VoUT C4 100p L3 R733 10k C58 ...

Page 46: ...C 33MS D603 GN1G BATT 7 5V EN2 EN4 EN3 EN1 PTT RXD PF1 PF2 SB D604 B30 1790 05 B30 2315 05 D602 D601 B30 2314 05 Q600 LTC014EEBFS8 BLULED GRNLED REDLED Q701 Q702 KTC7045E Y GR X700 XOUT XIN SCLK_EEP SDATA_I_EEP BSHIFT 19 2MHz IC702 F363BEDFEKDLF IC700 EX25064ATA00A IC704 BU7465HFV AUXDAC2 33MS 33B CML_IRQ CML CSN SCLK_CML SDATA_I_CML SDATA_O_CML MICFB Q706 2SA1586 Y GR F Q705 2SC4116 GR F VOX IC70...

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Kenwood TK-3402, Service Manual

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