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Copyright 2006 by Kenwood Corporation. All rights reserved.
No part of this manual may be reproduced, translated, distributed, or transmitted in any
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While every precaution has been taken in the preparation of this manual, Kenwood
assumes no responsibility for errors or omissions. Neither is any liability assumed for
damages resulting from the use of the information contained herein. Kenwood reserves
the right to make changes to any products herein at any time for improvement purposes.

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Table of Contents

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   Summary of Contents for Kenwood TK-80

  • Page 1 Kenwood. Disclaimer While every precaution has been taken in the preparation of this manual, Kenwood assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Kenwood reserves...
  • Page 2: Table Of Contents

    HF SSB RADIOTELEPHONE TK-80 SERVICE MANUAL © 2006-4 PRINTED IN JAPAN B51-8758-00 ( N ) PDF Knob (Main dial) Panel assy (K29-5080-13) (A62-0668-03) Foot Knob (VOL, SQL, CLA) (J02-0475-05) x 4 (K29-4973-04) x 3 CONTENTS GENERAL ........... 2 FINAL UNIT (X45-3520-21) ....64 REALIGNMENT ..........
  • Page 3: General

    TK-80 GENERAL / REALIGNMENT INTRODUCTION 1. Modes SCOPE OF THIS MANUAL Power supply OFF This manual is intended for use by experienced techni- cians familiar with similar types of commercial grade commu- 1. User mode 2. User menu mode nications equipment. It contains all required service informa- tion for the equipment and is current as of the publication date.
  • Page 4: Realignment

    TK-80 REALIGNMENT DIP switch SW1 is ON. 2. How to Enter Each Mode Press [POWER] while holding [MENU] and Mode Operation Dealer mode enabled [MODE]. User mode Power ON Turn [DIAL] or User menu mode [User mode] + [MENU] press any key.
  • Page 5 TK-80 REALIGNMENT 4-1. Procedure ( ): Initial value • If the transmit frequency happens to be the default setting (00.000.00), when writing the receive frequency is com- 1) Press [POWER] while holding [MENU] and [MODE]. pleted, the receive frequency setting is automatically writ- ten to the transmit frequency memory channel as well.
  • Page 6: Contents

    TK-80 REALIGNMENT ■ Alphanumeric display data write mode (Blank) 5. Dealer Menu Mode This mode is used to write alphanumeric display data (up This mode is used to select functions the dealer sets for to 7 digits) to the memory channels.
  • Page 7 10Hz → F. LOCK → 100kHz → 1kHz → 10Hz This mode is used to copy the memory and menu data Turning the [DIAL] after changing the step frequency from one TK-80 unit to one or more others to create rounds the lower digit off to “0”. “TRANS”.
  • Page 8 TK-80 REALIGNMENT 9-1. Selecting settings 9. User Menu Mode • Begin by pressing [MENU] to display the User menu. This mode enables users to select various settings to suit • Press [MODE] or [DATA] to select the desired item num- their individual needs.
  • Page 9: Installation

    TK-80 INSTALLATION 2. As shown in the figure, set the front panel down on its 1. Installing the AT unit (KAT-2: Option) face, mount the optional circuit board X52-330 (selective Remove the case and shielding cover in advance. ➌ call) and secure it with the four ( ) screws.
  • Page 10 TK-80 INSTALLATION 3. Installing the optional TCXO (SO-2 or accessory of KPE-1) ➊ 1. Remove the screws ( ) securing the shield plate, then remove the shield plate. ➋ 2. Remove the screws ( ) holding the X57-466 circuit board.
  • Page 11: Circuit Description

    Transmission carrier frequency The accuracy of the reference crystal oscillator used in the Transmission carrier frequency TK-80 is 10ppm (–10°C to +50°C). The accuracy of the op- Mark transmission frequency tional temperature-compensated crystal oscillator (TCXO SO- AFSK Carrier point frequency 2) is 0.5ppm (–10°C to +50°C).
  • Page 12 SLAB input of the DDS IC. This pin handles the ABSL signal for IC501, and the CASL signal for IC500. This function eliminates the need for the TK-80 to set frequency data for each transmission/reception with the microprocessor. VCO1: 73.145~83.544MHz...
  • Page 13 TK-80 CIRCUIT DESCRIPTION ■ Frequency data selection 2π = 2 The SPSL input of the DDS IC selects whether to use the data in the internal frequency shift register or the data from FFFFH the parallel input as frequency modulation data.
  • Page 14 TK-80 CIRCUIT DESCRIPTION The first IF signal of 73.045MHz passes through the MCF 3-1. Receiver front-end (XF1), is amplified by the IF amplifier Q10, and mixed with the The signal input to the TX-RX unit passes through the 30 62.35MHz LO2 signal by the second mixer, Q11 and Q12, to MHz low-pass filter, and signal above 1.605MHz goes to...
  • Page 15 TK-80 CIRCUIT DESCRIPTION 3-3. Signal strength meter circuit Selection of each mode 10.695MHz Part No./ In all mode, the signal strength meter circuit comprises DATA DATA operational amplifier IC2. The signal level detected is input to filter name (AFSK) (FSK) pin 3 of IC2 (1/2) and amplified by about 8dB by IC2 (2/2), then goes to IC5 of the control unit (Fig.
  • Page 16 TK-80 CIRCUIT DESCRIPTION Item Rating Item Rating Center frequency (fo) 73.045MHz Nominal center frequency (fo) 10.695MHz Pass bandwidth ± 7.5kHz or more at 3dB Center frequency deviation Within ± 80Hz (25°C, 6dB) Attenuation bandwidth ± 30kHz or less at 20dB...
  • Page 17 5. Digital Control Circuit With this transceiver, the power is turned on and off by The TK-80’s digital control circuit comprises a 16-bit micro- the microcomputer. When the power switch is pressed, the computer CPU IC5, a reset IC3, an EEPROM IC6. Expander I/...
  • Page 18 TK-80 CIRCUIT DESCRIPTION SELECTIVE CALL UNIT LCD ASSY AT, SCAN DTMF Rotary MENU MIC SW encoder MODE DATA CLARI AT UNIT DTMF Power Buffer Internal decoder driver CONTROL UNIT POD1,POD2 DATA BUS TX-RX UNIT timer timer Slide Expand I/O (int)
  • Page 19 TTL level. in the EEPROM, which consists of 256 16-bit registers. Data The TK-80 can use this serial port for control via an exter- can be written to and read from the EEPROM. Each time the nal personal computer or for transmission of data among two power is switched on, data is read from the EEPROM.
  • Page 20 The output signal from the microcomputer goes to the serial-to- The TK-80 has one PLL and two DDSs. The main micro- parallel converter IC16, IC15 and IC10, D/A converter IC13 computer outputs frequency data to the PLL and DDSs seri- (Fig.
  • Page 21 TK-80 CIRCUIT DESCRIPTION 5-12. Final unit control signal The MAT-100 control signal is bi-directional and conducts tuning while handshaking with the MAT-100 (Fig. 17). The transmission LPF section signal and KAT-2 control sig- nal to the final unit are output as serial data (Fig. 15).
  • Page 22: Semiconductor Data

    TK-80 SEMICONDUCTOR DATA Microprocessor: 37702E8LHJMHF (Control unit IC5) Pin No. Pin Name Port Name I/O Description Selective call lock detect input. H: Detect, L: Normal Power relay control. H: ON, L: OFF INT2 Reduced voltage input. H: Normal, L: Reduced voltage, Rise pulse: Power supply turned on...
  • Page 23 TK-80 SEMICONDUCTOR DATA Pin No. Pin Name Port Name I/O Description Expansion I/O RD signal. H: Normal, L: RD Expansion I/O WR signal. H: Normal, L: WR 43~50 D7~D0 P17~P10 False data path Packet busy output. H: Busy, L: Normal Key input.
  • Page 24 TK-80 SEMICONDUCTOR DATA Pin No. Pin Name Port Name I/O Description Port address 1 Port address 0 Not used FEN4 Serial parallel enable, final unit IC4 FEN3 Serial parallel enable, TX-RX unit IC16 FEN2 Serial parallel enable, TX-RX unit IC15...
  • Page 25 TK-80 SEMICONDUCTOR DATA Pin No. Pin Name Port Name Description RX band select 7. ON: 14.5MHz≤f<21.5MHz, OFF: Other RX band select 6. ON: 10.5MHz≤f<14.5MHz, OFF: Other RX band select 5. ON: 8.0MHz≤f<10.5MHz, OFF: Other I/O Port Expansion: BU2099FV (TX-RX unit IC15) Pin No.
  • Page 26 TK-80 SEMICONDUCTOR DATA D/A Converter: M62363FP (TX-RX unit IC13) Pin No. Pin Name Port Name Description VI1,VO1 Not used Power control (5V) Created from 14V at zener and resistive division AF reference voltage AF voltage (VCA control voltage) MICOUT Microphone output (audio), microphone gain...
  • Page 27: Components Description

    TK-80 COMPONENTS DESCRIPTION FINAL UNIT (X45-3520-21) Ref. No. Use / Function Operation / Condition Ref. No. Use / Function Operation / Condition D701~706 Relay surge LPF relay counter voltage bypass Comparator Fan control absorption Regulator 14V→5V Regulator 14V→8V CONTROL UNIT (X53-3570-21)
  • Page 28 TK-80 COMPONENTS DESCRIPTION Ref. No. Use / Function Operation / Condition Ref. No. Use / Function Operation / Condition Audio amplifier Audio power amplification Switching AIP OFF: ON Switching Analog switch Amplifier Buffer amplifier for NB noise amplifier MIC amplifier...
  • Page 29 TK-80 COMPONENTS DESCRIPTION Ref. No. Use / Function Operation / Condition Ref. No. Use / Function Operation / Condition Switching TXB/RXB select switch Q536 Buffer amplifier VCO output 73.145~103.045MHz Switching ON when TXB is Low Q800 Switching NB ON/OFF Switching...
  • Page 30 TK-80 COMPONENTS DESCRIPTION Ref. No. Use / Function Operation / Condition Ref. No. Use / Function Operation / Condition Voltage limiter Zener diode 12V voltage shift Reverse flow D72,73 Reverse flow prevention prevention PIN diode Diode of 10.695MHz level variability...
  • Page 31: Parts List

    Les articles non mentionnes dans le Parts No. ne sont pas fournis. Y : AAFES (Europe) X : Australia M : Other Areas Teile ohne Parts No. werden nicht geliefert. TK-80 (Y52-3210-21) FINAL UNIT (X45-3520-21) Desti- Desti- Ref. No. Address Parts No.
  • Page 32 TK-80 PARTS LIST FINAL UNIT (X45-3520-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation ✽ CC45FCH2H030CN CERAMIC 3.0PF E04-0191-05 PIN SOCKET CC73FCH1H560J CHIP C 56PF E23-0996-05 TEST TERMINAL CK73FB1E103K CHIP C 0.010UF...
  • Page 33 TK-80 PARTS LIST FINAL UNIT (X45-3520-21) CONTROL UNIT (X53-3570-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation RK73FB2A391J CHIP R 1/10W Q19-21 DTB143EK DIGITAL TRANSISTOR R19,20 RS14CB3A150J FL-PROOF RS 15...
  • Page 34 TK-80 PARTS LIST CONTROL UNIT (X53-3570-21) TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R4-8 RK73GB1J221J CHIP R 1/16W 1SS301 DIODE RK73GB1J471J CHIP R 1/16W 1SS355 DIODE...
  • Page 35 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation CK73GB1H182K CHIP C 1800PF C101 CC73FCH1H060D CHIP C 6.0PF CK73FF1E104Z CHIP C 0.10UF C102-104 CK73GB1H103K CHIP C 0.010UF...
  • Page 36 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C199 CK73GB1H471K CHIP C 470PF C295 CK73GB1H103K CHIP C 0.010UF C201,202 CK73GB1H103K CHIP C 0.010UF C296...
  • Page 37 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C389 CE04EW1H010M ELECTRO 1.0UF 50WV C570 CC73GCH1H470J CHIP C 47PF C390 CE04EW1C470M ELECTRO 47UF 16WV C571...
  • Page 38 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C646 CK73FB1H103K CHIP C 0.010UF C815,816 CK73FB1H103K CHIP C 0.010UF C647 CK73FB1H102K CHIP C 1000PF C817...
  • Page 39 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation ✽ L41-4785-32 SMALL FIXED INDUCTOR (0.47UH) L507 L40-5675-48 SMALL FIXED INDUCTOR (56NH) L40-2792-18 SMALL FIXED INDUCTOR (2.7UH)
  • Page 40 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation RK73FB2A330J CHIP R 1/10W RK73GB1J103J CHIP R 1/16W RK73EB2B121J CHIP R 1/8W R80,81 RK73GB1J122J CHIP R 1.2K...
  • Page 41 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R157-160 RK73FB2A330J CHIP R 1/10W R235 RK73GB1J473J CHIP R 1/16W R161,162 R92-1252-05 CHIP R 0 OHM J...
  • Page 42 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R308 RK73FB2A473J CHIP R 1/10W R403 RK73GB1J104J CHIP R 100K 1/16W R309,310 RK73FB2A223J CHIP R 1/10W...
  • Page 43 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R579 RK73GB1J223J CHIP R 1/16W R643 RK73FB2A471J CHIP R 1/10W R580 RK73GB1J103J CHIP R 1/16W R644...
  • Page 44 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R908 RK73GB1J104J CHIP R 100K 1/16W 02CZ4.7(Y) ZENER DIODE R909,910 RK73GB1J103J CHIP R 1/16W D81-87 1SS355...
  • Page 45 TK-80 PARTS LIST TX-RX UNIT (X57-4660-21) LCD ASSY (B38-0739-15) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation Q50,51 2SC2712(Y) TRANSISTOR 157-103-55001 THERMISTOR DTC114EK DIGITAL TRANSISTOR TH8,9 157-102-53003 THERMISTOR Q54,55 2SC2712(Y)
  • Page 46: Exploded View

    TK-80 EXPLODED VIEW (A/2) X45 (B/2) Ø4.0 (FW) : N15-1040-46 M7.0 : N10-2070-46 M3 x 6 (F) : N32-3006-46 M3 x 6 (OC) : N33-3006-45 M3 x 18 (Bi) : N35-3018-46 M4 x 10 (Bi) : N35-4010-46 M3 x 5...
  • Page 47: Packing

    TK-80 PACKING 7 Instruction manual (B62-1012-00) 750 Protection bag 56 Microphone (T91-0562-25) 13 DC cord (E30-3157-15) 24 Fuse (Blade type 25A/32V) (F05-2531-05) 25 Fuse (Blade type 4A/32V) 37 Polystyrene foamed fixture (R) (F06-4027-05) (H10-2788-02) 751 Protection bag 38 Carton board...
  • Page 48: Adjustment

    TK-80 ADJUSTMENT Required Test Equipment Service Adjustment Mode 1. Stabilized Power Supply 1. Function 1) The supply voltage can be changed between 5V and 1) Service adjustment mode is only to set the adjustment 18V, and the current is 30A or more.
  • Page 49: Contents

    TK-80 ADJUSTMENT 4. Memory frequency configuration Contents Microphone sensitivity f compensation (f<8.0MHz) M CH Frequency Mode M CH Frequency Mode Microphone sensitivity f compensation (8.0MHz≤f<21.5MHz) 7.250MHz 14.250MHz Microphone sensitivity f compensation (21.5MHz≤f) 500kHz 14.200MHz SWR protection setting 10.499MHz 14.250MHz SWR, 3 setting (for display, AT control) 10.500MHz...
  • Page 50 TK-80 ADJUSTMENT PLL and CAR Section Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 1. Reference 1) M CH: 01 f. counter TX-RX TP501 TX-RX TC501 20.00000MHz ± 20Hz frequency (probe adjustment 10 : 1) 2. 62.35MHz...
  • Page 51 TK-80 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 3. IF AMP 1) M CH: 08 Rear TX-RX L44 Repeat adjustment adjustment [DATA]: 1 push panel 2 to 3 times. [MODE]: 1 push AF V.M EXT.SP...
  • Page 52 TK-80 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 14. S/N check 1) M CH: Following M CH Radio Rear S/N measurement 10dB or more AF VR: 0.45V/4Ω tester or panel AIP ON: Sensitivity down SSG f.: Following frequency...
  • Page 53 TK-80 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 6. ROM data 1) Turn the [DIAL] to select Menu No. 39. Display (READY) → Press [MODE] or [DATA] → Write → Finish (GOOD) writing 7. Idle current...
  • Page 54 TK-80 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 14. Power 1) M CH: 23 Power meter Rear Final Power maximum 95W or more frequency Transmit panel response 15. Spurious 1) M CH: 24 Power meter...
  • Page 55 TK-80 ADJUSTMENT Adjustment Points ■ Final unit (A/2) (Component side view) FINAL UNIT X45-352 (A/2) CN104 ■ TX-RX unit (Component side view) TP504 TC503 CN501 VR9 VR10 TC504 VR3 VR2 TX-RX UNIT TC505 X57-466 TP505 L515 CN19 L514 L513 TC502...
  • Page 56: Terminal Function

    TK-80 TERMINAL FUNCTION FINAL UNIT (X45-3520-21) (A/2) CN No. Pin No. Pin Name Function CN No. Pin No. Pin Name Function CN11 AT band data 4.50000~7.99999MHz Coax. Drive input 14AT AT band data 8.00000~14.49999MHz FAN+ Power supply for fan 18AT AT band data 14.50000~18.99999MHz...
  • Page 57 TK-80 TERMINAL FUNCTION CN No. Pin No. Pin Name Function CN No. Pin No. Pin Name Function Microphone UP switch AMUT Audio mute Standby switch AF volume voltage VSQL Squelch volume voltage SIDE Sidetone Clarifier volume voltage Beep AF volume voltage...
  • Page 58 TK-80 TERMINAL FUNCTION CN No. Pin No. Pin Name Function CN No. Pin No. Pin Name Function CN14 PC I/F (TX data) 14V (switched) AMUT Audio mute Preset AT install. Low: Install AF volume voltage SPED Motor speed control SIDE...
  • Page 59 TK-80 TERMINAL FUNCTION CN No. Pin No. Pin Name Function CN No. Pin No. Pin Name Function No connection Clarifier volume voltage RTTY keying line VSQL Squelch volume voltage Received data output Standby switch Microphone UP switch Squelch control output...
  • Page 60: Level Diagram

    TK-80 LEVEL DIAGRAM TX Section MIC input: 1kHz, 5mV The AF level is measured by an AF VTVM. The RF level is measured by an RF VTVM.
  • Page 61 TK-80 LEVEL DIAGRAM RX Section AIP: OFF 1. Connect the signal generator to the ANT terminal at 14.2MHz 3. The signal type connector, TP, shown by is measured by USB, apply a signal of 0dBµ (EMF), tune so that the AF output...
  • Page 62 TK-80 LEVEL DIAGRAM Local Oscillator Section...
  • Page 63: Pc Board

    TK-80 PC BOARD LCD ASSY (B38-0739-15) Component side view Component side Layer 1 Layer 2 Foil side New PCB...
  • Page 64 TK-80 PC BOARD LCD ASSY (B38-0739-15) Foil side view Ref. No. Address Component side Layer 1 Layer 2 Foil side New PCB...
  • Page 65: Final Unit (x45-3520-21)

    TK-80 PC BOARD FINAL UNIT (X45-3520-21) Component side view (J72-0380-11) J72-0380-11 B/2 CN101 J800 PHONES CN800 14AF 14AG CN10 BOVR DGND FEN4...
  • Page 66 TK-80 PC BOARD FINAL UNIT (X45-3520-21) Component side view (J72-0380-11) J72-0380-11 A/2 Ref. No. Address K401 L401 L402 K601 L601 K402 L602 C604 K301 L301 K602 L302 K501 K302 L501 L502 C504 K201 K502 L201 L202 K101 K202 L101 LPF1...
  • Page 67 TK-80 TK-80 PC BOARD PC BOARD FINAL UNIT (X45-3520-21) Component side view (J72-0380-11) FINAL UNIT (X45-3520-21) Component side view (J72-0380-11) J72-0380-11 A/2 Ref. No. Address K401 L401 L402 K601 L601 K402 L602 C604 K301 L301 J72-0380-11 B/2 K602 CN101 L302...
  • Page 68 TK-80 PC BOARD FINAL UNIT (X45-3520-21) Foil side view (J72-0380-11) J72-0380-11 A/2...
  • Page 69 TK-80 PC BOARD FINAL UNIT (X45-3520-21) Foil side view (J72-0380-11) Ref. No. Address D701 D702 D703 J72-0380-11 B/2 D704 D705 D706 Component side Layer 1 Layer 2 Foil side...
  • Page 70 TK-80 TK-80 PC BOARD PC BOARD FINAL UNIT (X45-3520-21) Foil side view (J72-0380-11) FINAL UNIT (X45-3520-21) Foil side view (J72-0380-11) J72-0380-11 A/2 Ref. No. Address D701 D702 D703 J72-0380-11 B/2 D704 D705 D706 Component side Layer 1 Layer 2 Foil side...
  • Page 71: Control Unit (x53-3570-21)

    TK-80 PC BOARD CONTROL UNIT (X53-3570-21) Component side view (J72-0381-12) – R104 R103 R133 R142 R132 DGND DGND DGND Ref. No. Address Ref. No. Address Ref. No. Address...
  • Page 72 TK-80 PC BOARD CONTROL UNIT (X53-3570-21) Component side view (J72-0381-12) R122 R120 R121 RESET J72-0381-12 Component side Layer 1 Layer 2 Foil side...
  • Page 73 TK-80 TK-80 PC BOARD PC BOARD CONTROL UNIT (X53-3570-21) Component side view (J72-0381-12) CONTROL UNIT (X53-3570-21) Component side view (J72-0381-12) – R122 R104 R120 R103 R133 R142 R132 R121 DGND DGND RESET DGND J72-0381-12 Component side Ref. No. Address Ref. No. Address Ref.
  • Page 74 TK-80 PC BOARD CONTROL UNIT (X53-3570-21) Foil side view (J72-0381-12) J72-0381-12 Ref. No. Address Ref. No. Address...
  • Page 75 TK-80 PC BOARD CONTROL UNIT (X53-3570-21) Foil side view (J72-0381-12) R149 R137 R136 R135 R134 C107 R147 Component side Layer 1 Layer 2 Foil side...
  • Page 76 TK-80 TK-80 PC BOARD PC BOARD CONTROL UNIT (X53-3570-21) Foil side view (J72-0381-12) CONTROL UNIT (X53-3570-21) Foil side view (J72-0381-12) R137 R149 R136 R135 R134 C107 R147 J72-0381-12 Component side Ref. No. Address Ref. No. Address Layer 1 Layer 2...
  • Page 77: Tx-rx Unit (x57-4660-21)

    TK-80 PC BOARD TX-RX UNIT (X57-4660-21) Component side view (J72-0382-41) TP504 RELAY ACC2 CN501 Q902 R906 C910 Q531 C679 TC503 R544 C677 IC900 R542 R904 C676 R662 C678 C706 L546 R312 L507 VOXS L545 R313 C518 C519 C674 C908 IC901...
  • Page 78 TK-80 PC BOARD TX-RX UNIT (X57-4660-21) Component side view (J72-0382-41) EXT. SP ACC1 Ref. No. Address Ref. No. Address Ref. No. Address R418 R277 R276 CN11 C309 CN10 14AF 14AG SIDE SPOG C258 PKDG R219 VMIC R347 VOXS IC10 R346...
  • Page 79 TK-80 TK-80 PC BOARD PC BOARD TX-RX UNIT (X57-4660-21) TX-RX UNIT (X57-4660-21) Component side view (J72-0382-41) Component side view (J72-0382-41) TP504 RELAY EXT. SP ACC1 ACC2 Ref. No. Address Ref. No. Address Ref. No. Address CN501 R418 R277 Q902 R276...
  • Page 80 TK-80 PC BOARD TX-RX UNIT (X57-4660-21) Foil side view (J72-0382-41) R419 C312 R401 R158 R367 R404 R159 C385 C205 C384 C181 C204 C193 C413 C148 R183 R182 R187 R181 R100 R385 C225 R105 C191 C222 R178 C154 C119 C134 R101...
  • Page 81 TK-80 PC BOARD TX-RX UNIT (X57-4660-21) Foil side view (J72-0382-41) Ref. No. Address Ref. No. Address R413 IC11 Q517 Q522 Q525 Q526 C672 Q527 Q528 Q801 Q802 C682 Q903 R823 C692 D800 Q514 D902 C598 C595 C596 R680 C707 C612...
  • Page 82 TK-80 TK-80 PC BOARD PC BOARD TX-RX UNIT (X57-4660-21) TX-RX UNIT (X57-4660-21) Foil side view (J72-0382-41) Foil side view (J72-0382-41) R413 Ref. No. Address Ref. No. Address R419 C312 IC11 Q517 Q522 Q525 Q526 C672 Q527 R401 Q528 Q801 Q802...
  • Page 83: Interconnection Diagram

    TK-80 INTERCONNECTION DIAGRAM...
  • Page 84 TK-80 INTERCONNECTION DIAGRAM...
  • Page 86: Schematic Diagram

    TK-80 SCHEMATIC DIAGRAM LCD ASSY (B38-0739-15) LCD1 SLU10098-01 SEG51 SEG30 SEG52 SEG29 SEG53 SEG28 SEG54 SEG27 SEG55 SEG26 SEG56 SEG25 SEG57 SEG24 SEG58 SEG23 SEG59 SEG22 SEG60 SEG21 SEG61 SEG20 SEG62 SEG19 SEG63 SEG18 SEG64 SEG17 MSM5265GS-V1K SEG65 SEG16 SEG66...
  • Page 87 TK-80 SCHEMATIC DIAGRAM LCD ASSY (B38-0739-15) 4.1V 10 1/4W 8.2V 4.1V 10 1/4W 13.8V 12.8V 8.8V 8.2V 4.1V TA7809F 10 1W POWER 10 1/4W 10 1W SCAN MENU MODE DATA 1.2k 3.9k IMN10 CLARI 1.2k 3.3k MICG MICG AGND TX-RX...
  • Page 88 LCD ASSY (B38-0739-15) LCD1 SLU10098-01 4.1V 10 1/4W 8.2V 4.1V 10 1/4W 13.8V 12.8V 8.8V 8.2V 4.1V TA7809F 10 1W POWER SEG51 SEG30 10 1/4W SEG52 SEG29 10 1W SEG53 SEG28 SEG54 SEG27 SEG55 SEG26 SCAN SEG56 SEG25 SEG57 SEG24 MENU SEG58 SEG23...
  • Page 89: Final Unit (x45-3520-21)

    TK-80 SCHEMATIC DIAGRAM FINAL UNIT (X45-3520-21) (A/2) Q2,3 Q5,6 PRE-DRIVE 4.7 1W 0.01u AMPLIFIER DRIVE FINAL TEMPERATURE 13.5V AMPLIFIER AMPLIFIER COMPENSATION 5.6 1W R : 0V 2SC2879A(O,Y) 13.5V T : 0.69V R : 0V 3.3u 13.5V 5.6 1W T : 1.7V 0.39u...
  • Page 90 TK-80 SCHEMATIC DIAGRAM FINAL UNIT (X45-3520-21) (A/2) L701 D701 C701 L101 L102 LPF1 100u LFB01 0.01u D10,11 C102 C104 470p 150p DETECTION 2.2m 2.2m 1SS101 1SS101 -2.399MHz L702 D702 C702 L201 L202 LPF2 100u LFB01 0.01u C202 C204 R : 0V SIGNAL T : 13.4V...
  • Page 91 FINAL UNIT (X45-3520-21) (A/2) L701 D701 C701 L101 L102 Q2,3 Q5,6 PRE-DRIVE LPF1 4.7 1W 0.01u AMPLIFIER LFB01 0.01u 100u DRIVE FINAL D10,11 TEMPERATURE C102 C104 13.5V AMPLIFIER AMPLIFIER COMPENSATION 5.6 1W R : 0V 2SC2879A(O,Y) 470p 150p 13.5V DETECTION 2.2m 2.2m T : 0.69V...
  • Page 92: Control Unit (x53-3570-21)

    TK-80 SCHEMATIC DIAGRAM CONTROL UNIT (X53-3570-21) D2 REVERSE FLOW PREVENTION 5.3V 5.6V 0.1u DTA143EK DTA143EK Q3-6 SIGNAL SWITCH 5.0V 5.0V 5.4V 5.0V BKC(INT2) R144 BOVR(INT1) DTC143EK DTC143EK PSW(INO1) CK2(TA4OUT) ODEN SPED(TA3OUT) R99 22k R100 22k R101 22k SIDE(TA2OUT) 37702E8LHJMHF 5.3V 4.7k...
  • Page 93 TK-80 SCHEMATIC DIAGRAM CONTROL UNIT (X53-3570-21) SEL-CALL-CN2 FINAL-CN3 (OPTION) DGND C94 0.1u 5.0V DGND 5.0V C95 0.1u 14.0V C96 1000p R122 5.0V C97 1000p R123 5.0V SPED C98 1000p R124 APRE C99 1000p 5.3V R125 C100 1000p R126 PR11 C101 1000p R127 5.3V...
  • Page 94 CONTROL UNIT (X53-3570-21) SEL-CALL-CN2 FINAL-CN3 (OPTION) D2 REVERSE FLOW PREVENTION 5.3V 5.6V 0.1u DTA143EK DTA143EK Q3-6 SIGNAL SWITCH 5.0V 5.0V 5.4V 5.0V DGND BKC(INT2) 5.0V C94 0.1u R144 DGND 5.0V BOVR(INT1) DTC143EK DTC143EK C95 0.1u 14.0V PSW(INO1) C96 1000p R122 5.0V CK2(TA4OUT) ODEN...
  • Page 95 TK-80 SCHEMATIC DIAGRAM TX-RX UNIT (TX-RX SECTION) (X57-4660-21) D1-4 LIGHTING SURGE ABSORPTION R7 180 RATB R24 4.7k D23.24 R : 13.4V SWITCHING DTC143TK T : 0V R : 0V R : 0V T : 12.9V T : 12.9V 2SA1213(Y) R : 9.7V 0.27u...
  • Page 96 TK-80 SCHEMATIC DIAGRAM TX-RX UNIT (TX-RX SECTION) TO PLL-CN501 TO PLL-CN502 MCF WAVEFORM ADJ MCF WAVEFORM ADJ (X57-4660-21) Q4-7 RX 1st MIX RATB R27 680 Q11,12 0.1u SWITCHING R : 5.0V RX 2nd MIX C79 0.1u T : 0V R : 13.1V 2SK520 73.045M...
  • Page 97 TK-80 SCHEMATIC DIAGRAM TX-RX UNIT (TX-RX SECTION) (X57-4660-21) TO PLL-W1 C131 10.695M RX 0.01u 1.2k 10.695M MCF DAN235K DAP236K DAN235K C147 C151 C122 DAP236K 7.8V 1.2k C126 0.01u 0.01u DAP236K 0.01u 0.1u BMDO Q18,19 100u 0.1u R385 AMPLIFIER 3.7V 7.6V 7.9V...
  • Page 98 TK-80 SCHEMATIC DIAGRAM TX-RX UNIT (TX-RX SECTION) (X57-4660-21) R208 4.4V R207 7.2V HSM88AS HSM88AS ACC2 4.7k 2SC2712(Y) C240 C245 PKDG 10.695M RX 1.5V DETECTION D28 SWITCHING 2SC2712(Y) 4.2V AMPLIFIER D52-54 R175 RX IF BUFFER AMPLIFIER DETECTION 7.0V HSM88AS C225 3SK131...
  • Page 99 TO PLL-W1 TO PLL-CN501 MCF WAVEFORM ADJ MCF WAVEFORM ADJ TO PLL-CN502 R208 4.4V TX-RX UNIT (TX-RX SECTION) (X57-4660-21) R207 HSM88AS 7.2V C131 4.7k HSM88AS ACC2 2SC2712(Y) C240 10.695M RX 10.695M RX C245 PKDG 0.01u 1.2k 1.5V D1-4 LIGHTING SURGE ABSORPTION Q4-7 RX 1st MIX...
  • Page 100 TK-80 SCHEMATIC DIAGRAM TX-RX UNIT (PLL SECTION) (X57-4660-21) Q801-804 Q805,807,808 Q806 AMPLIFIER SWITCHING BUFFER AMPLIFIER TP504 6.8V 1.8V VCO1 L545 3.3V 0.68u 73.145-83.544MHz C812 R815 L802 L803 Q531 2SK508NV C671 C675 (K52) 4.7V 6.8V D503 L546 Q806 SWITCHING Q801 R819 5.3V...
  • Page 101 TK-80 SCHEMATIC DIAGRAM TX-RX UNIT (PLL SECTION) (X57-4660-21) 7.6V Q507 CN501 2SC2714(Y) C515 C516 C518 C520 R543 R822 R821 2.1V TX-RX-CN2 1.4V 3.4dBm L506 L507 VCO2 73.145- VCO3 L547 L549 103.045MHz 83.545-94.544MHz 0.68u 0.68u 94.545-103.045MHz Q533 Q535 2SK508NV 2SK508NV (K52)
  • Page 102 TX-RX UNIT (PLL SECTION) (X57-4660-21) 7.6V Q507 CN501 2SC2714(Y) C515 C516 C518 C520 R543 Q801-804 Q805,807,808 Q806 R822 R821 2.1V TX-RX-CN2 AMPLIFIER SWITCHING BUFFER AMPLIFIER TP504 1.4V 3.4dBm L506 L507 6.8V 1.8V VCO2 73.145- VCO1 VCO3 L545 L547 L549 3.3V 103.045MHz 0.68u 0.68u...
  • Page 103: Block Diagram

    TK-80 BLOCK DIAGRAM...
  • Page 104 TK-80 BLOCK DIAGRAM...
  • Page 106: Internal Automatic Antenna Tuner)

    TK-80 KAT-2 (Internal Automatic Antenna Tuner) 2. Auto tuning External View The transmitter power from the final unit passes through current/voltage detection transformers L1 and L2, which have toroidal cores. The current and voltage components detected here are rectified by a waveform rectification circuit consisting of D3 to D5, Q1, D6 to D8, and Q2, and are then phase-compared by IC1.
  • Page 107 The potentiometers used here are not ones that rotate through 360 degrees. Since the TK-80 limits the rotation angle of each potentiometer, the rotation range is from the minimum capacitance to the maximum capacitance, plus a little extra for headroom.
  • Page 108 TK-80 KAT-2 (Internal Automatic Antenna Tuner) Parts List ✽ New Parts. Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation RK73FB2A102J CHIP R 1.0K 1/10W KAT-2 RD14CB2E470J 1/4W B62-0530-10 INSTRUCTION MANUAL...
  • Page 109 TK-80 KAT-2 (Internal Automatic Antenna Tuner) Exploded View W101 W102 AT unit (X53-363) (A/5) B M3 x 6 (Br-Tap) : N87-3006-46 C M3 x 6 (F-Tap) : N88-3006-46 W103 W102 W101 W104 X53-363 (C/5) W106 X53-363 (B/5) X53-363 (E/5) W105...
  • Page 110 TK-80 KAT-2 (Internal Automatic Antenna Tuner) Packing 1 Instruction manual (B62-0530-10) A Brazier head taptite screw (N87-3006-46) x 3 709 Protection bag 705 Packing fixture 709 AT unit 706 UPC code label 707 Packing fixture 708 Item carton case Parts with the exploded numbers larger...
  • Page 111 TK-80 KAT-2 (Internal Automatic Antenna Tuner) Adjustment Measurement Adjustment Specifications/ Item Condition Test- Unit Terminal Unit Parts Method Remarks equipment 1. Automatic 1) Display: 2MHz Oscilloscope Check SW meter decreases, antenna Mode: CW Dummy then AT is stop. tuner check Dummy load: 20Ω...
  • Page 112 TK-80 KAT-2 ( PC BOARD ) AT UNIT (X53-3630-20) Component side view (J72-0402-02) J72-0402-02 B/5 L106 L105 L104 L103 K104 L101 K103 K107 K106 K105 K102 L113 L111 L112 L107 W103 K101 W102 W101 ATD2 ATD1 J72-0402-02 C/5 M2– VR102 M1–...
  • Page 113 TK-80 KAT-2 ( PC BOARD ) AT UNIT (X53-3630-20) Component side view (J72-0402-02) Ref. No. Address VC102 W101 ATD1 02-02 C/5 VC101 R102 J72-0402-02 D/5 J72-0402-02 E/5 W105 W106 Component side Layer 1 Layer 2 Foil side R101...
  • Page 114 TK-80 TK-80 KAT-2 ( PC BOARD ) KAT-2 ( PC BOARD ) AT UNIT (X53-3630-20) Component side view (J72-0402-02) AT UNIT (X53-3630-20) Component side view (J72-0402-02) J72-0402-02 B/5 Ref. No. Address L106 L105 L104 L103 VC102 K104 L101 K103 K107...
  • Page 115 TK-80 KAT-2 ( PC BOARD ) AT UNIT (X53-3630-20) Foil side view (J72-0402-02) J72-0402-02 C/5 J72-0402-02 E/5 J72-0402-02 D/5...
  • Page 116 TK-80 KAT-2 ( PC BOARD ) AT UNIT (X53-3630-20) Foil side view (J72-0402-02) J72-0402-02 B/5 Ref. No. Address C104 D104 C103 D103 D101 C102 D102 D102 D103 D104 C101 D105 D101 D106 D107 Component side Layer 1 Layer 2 Foil side...
  • Page 117 TK-80 TK-80 KAT-2 ( PC BOARD ) KAT-2 ( PC BOARD ) AT UNIT (X53-3630-20) Foil side view (J72-0402-02) AT UNIT (X53-3630-20) Foil side view (J72-0402-02) J72-0402-02 B/5 Ref. No. Address C104 D104 C103 D103 D101 C102 D102 D102 D103...
  • Page 118 TK-80 KAT-2 (SCHEMATIC DIAGRAM) AT UNIT (KAT-2) (OPTION) (X53-3630-20) (A/5) 100u FINAL-CN6 4.0V SWITCHING 4.7V SN74S74NS D-FF 0.01u 1.5V 2SC2714(Y) 1SS226 0.97V FINAL-CN5 AMPLIFIER 0.42V 1SS226 1SS226 4.0V 0.33V ATD1 SWITCHING 1.5V ATD2 0.01u 2SC2714(Y) 1SS226 0.81V AMPLIFIER 1SS226 1SS226...
  • Page 119 TK-80 KAT-2 (SCHEMATIC DIAGRAM) AT UNIT (KAT-2) (OPTION) (X53-3630-20) (A/5) L8 100u 0.02V SWITCHING L7 100u 4.1V MOTOR DRIVE ANALOG SWITCH BA6109U2 TC4066BF 0.02V 13.6V 0.09V DTD143EK SWITCHING 100u 100u DTC114EK L13 100u SPED SPED L12 100u APRE APRE L14 100u...
  • Page 120 AT UNIT (KAT-2) (OPTION) (X53-3630-20) (A/5) L8 100u 100u 0.02V SWITCHING L7 100u FINAL-CN6 4.0V SWITCHING 4.1V 4.7V MOTOR DRIVE ANALOG SWITCH BA6109U2 SN74S74NS TC4066BF D-FF 0.02V 13.6V 0.09V 0.01u 1.5V 2SC2714(Y) DTD143EK 1SS226 0.97V SWITCHING FINAL-CN5 100u AMPLIFIER 0.42V 1SS226 1SS226 4.0V...
  • Page 121: Selective Call Kit)

    TK-80 KPE-1 (Selective Call Kit) Components Description External View SELECTIVE CALL UNIT (X52-3300-20) Ref. No. Use / Function Operation / Condition FSK demodulator Buffer DTMF decoder Lights when “MARK” signal input Lights when “SPACE” signal input Lights when “FSK” signal input...
  • Page 122 TK-80 KPE-1 (Selective Call Kit) Parts List Packing ✽ New Parts. Desti- Ref. No. Address Parts No. Description parts nation 2 Flat cable (E37-0502-05) KPE-1 3 Lead wire with connector B62-0531-10 INSTRUCTION MANUAL (E37-0504-05) ✽ A Brazier head taptite screw...
  • Page 123 TK-80 KPE-1 (PC BOARD) SELECTIVE CALL UNIT (X52-3300-20) Component side view J72-0395-02 Ref. No. Address D6 LOCK D5 SPACE D4 MARK DGND DGND DGND TEST Component side Layer 1 Layer 2 Foil side SELECTIVE CALL UNIT (X52-3300-20) Foil side view...
  • Page 124 TK-80 KPE-1 (SCHEMATIC DIAGRAM) SELECTIVE CALL UNIT (KPE-1) (OPTION) (X52-3300-20) FSK DEMODULATOR 5.0V NJM2211M SIGNAL PRE AMP 0.1u 24mVrms QUAD LOOP TX-RX -CN13 LOCK DETECTOR MICG INTERNAL MICG COMPARATOR 1.8V REFERENCE COMPARATOR TEST TEST 4.7k 4.7k 470k 5.0V BUFFER 5.0V...
  • Page 125: Specifications

    Less than 2.5µV (1.8~29.99999MHz) 11.0~14.49999MHz Spurious response 16.0~21.49999MHz IF image ratio ............. More than 70dB 24.0~29.99999MHz IF rejection ............More than 80dB TK-80 + KAT-2 ..........2.0~2.39999MHz Selectivity 3.5~4.49999MHz SSB/CW/FSK ........More than 2.2kHz (–6dB) 6.0~7.99999MHz Less than 4.8kHz (–60dB) 11.0~14.49999MHz AM ............

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  • sunil Oct 19, 2018 05:37:
    what do to if tx path not working