Kenwood TK-690H Service Manual
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Kenwood TK-690H Service Manual

Kenwood TK-690H Service Manual

Vhf fm transceiver
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VHF FM TRANSCEIVER
TK-690H
SERVICE MANUAL
REVISED
This service manual applies to products with 30500001 or subsequent serial numbers. (KCH-10 and KCH-11 are applicable to
the productions June 2001 and after.)
In terms of the products with the serial numbers earier than 30500001, refer to the TK-690H(B) service manual as per part
No. B51-8460-00.
TK-690H(B)
Cabinet (Lower)
(A01-2164-01)
KCH-10
KCH-11
(
)
B
Knob
(K29-4664-04) x 2
Knob
(K29-4664-04) x 2
© 2001-7 PRINTED IN JAPAN
B51-8460-10 ( N ) 1031
Cabinet (Upper)
(A01-2163-01)
Panel assy
(A62-0606-13)
Panel assy
(A62-0607-13)

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  • Page 1 This service manual applies to products with 30500001 or subsequent serial numbers. (KCH-10 and KCH-11 are applicable to the productions June 2001 and after.) In terms of the products with the serial numbers earier than 30500001, refer to the TK-690H(B) service manual as per part No. B51-8460-00.

  • Page 2: Table Of Contents

    TK-690H CONTENTS / GENERAL GENERAL ......................... 2 SYSTEM SET-UP ......................4 OPERATING FEATURES ....................5 INSTALLATION ......................16 DISASSEMBLY FOR REPAIR ..................22 CIRCUIT DESCRIPTION ....................25 SEMICONDUCTOR DATA ..................... 31 DESCRIPTION OF COMPONENTS ................34 PARTS LIST ........................37 EXPLODED VIEW ......................

  • Page 3: General

    Your KENWOOD dealer can help you select an antenna sys- tion. Transmitter frequency, deviation, and power output tem that will best serve your particular needs.

  • Page 4: System Set-Up

    TK-690H SYSTEM SET-UP Before Reading About System Set-up The TK-690H(B) is a transceiver main unit (without a 3. Remotely control one radio with two controllers. (Form panel or speaker) that you complete by adding options. : Radio + KRK-6DH + KCH-10/11 (two) + KCT-22M/M2/...

  • Page 5: Operating Features

    TK-690H OPERATING FEATURES (1) POWER Switch 1. Controls and Functions Press to turn the power ON and OFF. 1-1. Basic Function Panel (2) TX/BUSY Indicator The TX Indicator (Red LED) shows that you are transmit- (19) ting. The BUSY Indicator (Green LED) shows that the channel is in use.

  • Page 6: Operating Features

    TK-690H OPERATING FEATURES Function Description Note Function Description Note [ ] : Key top name [ ] : Key top name Channel Switches the display between Speaker 1-2 Each speaker audio can be Dual HEAD Name [AN] Group-Channel No. and Group...

  • Page 7: Scan Operation

    TK-690H OPERATING FEATURES 2. Receive Description Note (27) C Lights when [AUXC] is pressed. (1) To turn on the RADIO: Press the Power Switch. The display and graphics illumi- The PF Port that is programmed nate to indicate the RADIO is ON.
  • Page 8 TK-690H OPERATING FEATURES (1) The scan feature is initiated by pressing the [SCN] Key. 6. Deleting Channels and Groups from the (2) A single confirmation tone sounds, and scanning starts. If Scan Sequence there is only one or no added channels, an error tone will sound and scanning will not start.
  • Page 9 TK-690H OPERATING FEATURES 10. Public Address (PA) CASE1 : HC has been set as “HC (Fixed)” Non-Scan Scanning Scan Public Address amplifies the microphone audio, and out- puts it through a PA speaker. PA is activated by pressing the Mode temporary [PA] Key.
  • Page 10 TK-690H OPERATING FEATURES 17. Option Board (OPT) Display TX/BUSY Panel Keys Microphone backlight backlight Keys backlight If an optional Scrambler board has been installed in the RADIO, Scrambler is activated by pressing the [OPT] Key. A Default High High High High confirmation tone sounds, and the OPT icon is displayed.

  • Page 11: Tone Signalling

    TK-690H OPERATING FEATURES 25. Busy Channel Lockout (BCL), BCL Override 29. Signalling AND/OR T h e B u s y C h a n n e l L o c k o u t f u n c t i o n p r e v e n t s...
  • Page 12 TK-690H OPERATING FEATURES 36-2. PF Output Port 33. Minimum Volume AUX A Pressing [AUXA] once Low, Pressing [A] When the Volume Knob is adjusted fully counterclock- [AUXA] again OPEN-COLLECTOR wise, the audio level is set to the Minimum Volume level which is programmed by the FPU.

  • Page 13: Power On Text

    DOS version 3.1 or later on an IBM-PC/XT, AT, or PS2 or compatible machine. • Emergency Call Fleet The data can be input to or read from TK-690H and edited The emergency fleet number when you select MSK in on the screen. The programmed or edited data can be the emergency type.
  • Page 14 TK-690H OPERATING FEATURES 43. PC Tuning Mode Mode Function User mode Customer use this mode When making adjustment while in PC tuning mode, modify the KPG-43 programming interface cable as de- PC mode Communication between the radio and scribed below.
  • Page 15 TK-690H OPERATING FEATURES 44-3. Group Clone 44. Clone Modes 1. Enter the group clone mode from the clone mode with There are two clone modes : “All Clone Mode”, in which [Up/Down] knob. all data programmed in one transceiver with the “FPU” is 2.

  • Page 16: Installation

    • Connection with remote kit Modification of the radio to use KRK-5, KRK-6DH, KRK- 7DB, or KRK-8DBH 2. Front Panel Kit (KCH-10, KCH-11) 2-2. Connection with TK-690H(B) 1. Remove the upper and lower halves of the case of the AUX A TK-690H(B).
  • Page 17 TK-690H INSTALLATION 3-2. Voice scrambler board connection • Modification 1. Remove the upper half of the case of the TK-690H(B). 2. Remove R515 and R604 on the control unit (X57-560 B/ 2) (Refer to page 21). • Connection The functions of pins of CN508 on the control unit (X57- 560 B/2) are shown in the figure.
  • Page 18 Rubber cap pins) on the back of the transceiver. 2. Insert the KCT-18 into pin 1 (IGN). 3. Remove the upper half of the case of the TK-690H(B). Tie wrap 4. Set jumper resistors (0 ohm), R504, R506, R742 and...
  • Page 19 TK-690H INSTALLATION 6-1. Connection for the KES-4 with the TK-690H(B) 6-2. Connection for the KES-4 with the remote kit • When taking the AF output from the accessory (KRK-5, KRK-6DH, KRK-7DB, KRK-8DBH) connector (9-pin) on the rear of the radio...
  • Page 20 1A by installing a relay. KRK-5 KRK-6DH KRK-7DB KRK-8DBH 1. Remove the upper half of the case of the TK-690H(B). 2. Move jumper resistor (0 ohm) R691 on the control unit Radio 1 Unnecessary (X57-560 B/2) to R692. To make the HR2 pin, remove Radio 2 –...
  • Page 21 TK-690H INSTALLATION R661 CONTROL UNIT (X57 B/2) R743 Connection with Component side view the remote kit Ignition sense (Page 20) cable (KCT-18) R742 (Page 18) R504 Ignition sense cable (KCT-18) (Page 18) R506 R546 Connection with the remote kit R705...

  • Page 22: Disassembly For Repair

    TK-690H DISASSEMBLY FOR REPAIR 1. Removing the Case and Shield Cover 3. Removing the Final Unit (X45-355) 1. Remove the 12 screws ( ), and remove the upper and 1. Remove the 2 screws ( lower halves of the case. (Remove the 6 screws holding 2.

  • Page 23: Disassembly For Repair

    TK-690H DISASSEMBLY FOR REPAIR 4. Removing the Control Unit (X57-560 B/2) 5. Removing the Accessory Connector on the Rear 1. Remove the 8 screws ( 2. With a screwdriver, remove the 2 leaf springs holding the 1. Confirm that the screw holding +DC cable (red) and the ICs to the frame ( screw holding –DC cable (black) of the final unit are re-...
  • Page 24 TK-690H DISASSEMBLY FOR REPAIR 6. Disassembly of the Display Unit 7. Disassembly of the Display Unit (X54-3190) : KCH-10 (X54-3200) : KCH-11 1. Pull out the VOL and UP/DOWN knobs ( 1. Pull out the VOL and UP/DOWN knobs ( 2.

  • Page 25: Circuit Description

    TK-690H CIRCUIT DESCRIPTION If an abnormal antenna load is connected, the reflected 1. Transmitter Circuit wave level increases. Reflected waves are detected by D6, 1-1. Microphone amplifier section (X57 B/2) D5 and the output level is fed to the differential amplifier Q8,...

  • Page 26: Circuit Description

    TK-690H CIRCUIT DESCRIPTION Item Rating Item Rating Nominal center frequency 10.7MHz Nominal center frequency 10.7MHz Pass bandwidth 7.5kHz or more at 3dB Pass bandwidth 7.5kHz or more at 3dB Attenuation bandwidth 25kHz or less at 40dB Attenuation bandwidth 25kHz or less at 18dB Ripple 1.0dB or less...
  • Page 27 Fig. 7 VCO/PLL circuit 5. VCO/PLL Circuit 6. Control Circuit The VCO of TK-690H(B) consists of two VCO circuits The control unit consists of microprocessor IC and its which one oscillates the transmit signal with Q306 and the peripheral circuits. It controls the TX-RX unit and transfers other does the first local receive signal with Q307.
  • Page 28 TK-690H CIRCUIT DESCRIPTION 6-3. D/A converter 7. Signalling Circuit IC512 is used as a conventional semi-fixed-resistor con- 7-1. Encode verter. It sets the following : • QT, DQT 1) RX sensitivity The CPU (IC516) transmits the encode data selected by 2) Transmission power the program.
  • Page 29 TK-690H CIRCUIT DESCRIPTION • CPU (containing LCD driver) 8. Display Unit The on/off signals of keys other than the power switch, The optional display unit (front panel unit) for the TK- and the PTT and HOOK signals, are converted to serial data 690H(B) comes in two models : KCH-10 and KCH-11 and sent to the control unit.
  • Page 30 TK-690H CIRCUIT DESCRIPTION 8-2. KCH-11 • Dimmer function This display unit consists of a CPU (IC4) a reset IC (IC2), From the control of the CPU’s DM1/DM2 port, you can 5V AVR (IC1), EEPROM (IC3), and other components. switch the LCD/KEY backlight, busy/TX LED, or the optional KMC-28 key backlight as shown in the following table.

  • Page 31: Semiconductor Data

    TK-690H SEMICONDUCTOR DATA Microprocessor : 784214GCXXX8EU (Control Unit IC516) • Terminal function Pin No. Pin name Action Pin No. Pin name Action FCLR Modem FCLR RXD1 Serial interface RXD Common CLOCK TXD1 Serial interface TXD D/A converter CS Modem STB...

  • Page 32: Semiconductor Data

    TK-690H SEMICONDUCTOR DATA Microprocessor : 78064GCXXX8EU (Display Unit IC4) • Terminal function Pin No. Pin name Action Pin No. Pin name Action MIC PTT L : ON, H : OFF Not used [MON] key L : ON, H : OFF...
  • Page 33 TK-690H SEMICONDUCTOR DATA • Block diagram • Shift register 2 on control unit (IC517) Pin No. Port Name Action MIC mute H : Mute, L : Unmute mute switch Audio line SW RX BPF DE-EMP –INV 1 DET line SW DET...
  • Page 34 TK-690H SEMICONDUCTOR DATA / DESCRIPTION OF COMPONENTS Flash ROM : AT29C020-90TI (Control Unit IC519) Final Unit (X45-3550-XX) • Terminal description -10 : K -11 : K2 -12 : K3 Pin Name Function Ref. No. Use/Function Operation/Condition A0~A17 Addresses TX drive amplifier...

  • Page 35: Description Of Components

    TK-690H DESCRIPTION OF COMPONENTS Ref. No. Use/Function Operation/Condition Ref. No. Use/Function Operation/Condition IC301 PLL IC 1 : CP 2 : DT 3 : EP IC502 4 : Vss 5 : Fin 7 : Vcc IC503 Input : SB, Output : 8V 8 : REFin (16.8MHz)
  • Page 36 TK-690H DESCRIPTION OF COMPONENTS Ref. No. Use/Function Operation/Condition Ref. No. Use/Function Operation/Condition Q523 DC switch Serial data inverter DC switch “PF4”, “PF5” key lighting : ON Q524 DC switch Serial data transmitter Q12,13 TRD switch Q525 DC switch Q14,15 DC switch...

  • Page 37: Parts List

    TK-690H PARTS LIST New Parts. indicates safety critical components. L : Scandinavia K : USA P : Canada Parts without Parts No. are not supplied. Y : PX (Far East, Hawaii) T : England E : Europe Les articles non mentionnes dans le Parts No. ne sont pas fournis.

  • Page 38: Parts List

    TK-690H PARTS LIST FINAL UNIT (X45-3550-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation CM73F2H270J CHIP C 27PF L34-1256-05 AIR-CORE COIL CC73FCH1H680J CHIP C 68PF L34-1259-05 AIR-CORE COIL K,K2 CC73FCH1H820J...
  • Page 39 TK-690H PARTS LIST FINAL UNIT (X45-3550-XX) TX-RX UNIT (X57-5600-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation 2SC1972 TRANSISTOR C140 CC73GCH1H331J CHIP C 330PF 2SD2531 TRANSISTOR C141 CK73GB1E103K CHIP C 0.010UF...
  • Page 40 TK-690H PARTS LIST TX-RX UNIT (X57-5600-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C302-304 CK73GB1H102K CHIP C 1000PF C384 CK73GB1C473K CHIP C 0.047UF C305 CK73GB1H103K CHIP C 0.010UF C384...
  • Page 41 TK-690H PARTS LIST TX-RX UNIT (X57-5600-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C593 C92-0633-05 CHIP-TAN 22UF 10WV CN101 E04-0154-05 PIN SOCKET C594 CK73GB1H103K CHIP C 0.010UF CN102,103 E40-5538-05...
  • Page 42 TK-690H PARTS LIST TX-RX UNIT (X57-5600-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation L306 L34-4294-05 COIL R167 RK73GB1J474J CHIP R 470K 1/16W L306 L34-4295-05 COIL R168 RK73GB1J101J CHIP R...
  • Page 43 TK-690H PARTS LIST TX-RX UNIT (X57-5600-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R359 RK73GB1J820J CHIP R 1/16W R577 RK73GB1J122J CHIP R 1.2K 1/16W R359 R92-1252-05 CHIP R 0 OHM...
  • Page 44 TK-690H PARTS LIST TX-RX UNIT (X57-5600-XX) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R666,667 R92-0670-05 CHIP R 0 OHM D519 DA204U DIODE R668 R92-1252-05 CHIP R 0 OHM D521...
  • Page 45 TK-690H PARTS LIST TX-RX UNIT (X57-5600-XX) NB (X58-4610-10) KCH-10 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation Q507 DTC114YUA DIGITAL TRANSISTOR RK73GB1J102J CHIP R 1.0K 1/16W Q509-513 DTC144EUA DIGITAL TRANSISTOR...

  • Page 46: Display Unit (X54-3190-20) : Kch-10

    TK-690H PARTS LIST DISPLAY UNIT (X54-3190-20) : KCH-10 KCH-11 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation RK73GB1J822J CHIP R 8.2K 1/16W DISPLAY UNIT (X54-3190-20) : KCH-10 RK73GB1J103J CHIP R...

  • Page 47: Display Unit (X54-3200-20) : Kch-11

    TK-690H PARTS LIST DISPLAY UNIT (X54-3200-20) : KCH-11 Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R31-0607-05 VARIABLE RESISTOR (10K) DISPLAY UNIT (X54-3200-20) : KCH-11 B30-2194-05 LED (GREEN) S40-1420-05 TACT SWITCH...

  • Page 48: Exploded View

    TK-690H EXPLODED VIEW : N09-2292-05 N M3 x 6 (OC) BLK : N33-3006-45 O M3 x 6 (Bi) : N35-3006-46 M3 x 8 : N67-3008-46 Q M4 X 8 : N68-4006-46 M2.6 x 6 (Br-Tap) : N87-2606-46 M2.6 x 12 (Br-Tap) : N87-2612-46...
  • Page 49 TK-690H EXPLODED VIEW (KCH-10) X54 (B/3) X54 (A/3) X54 (C/3) U M2.6 x 5 (Br-Tap) : N87-2605-46 M2.6 x 8 (Br-Tap) : N87-2608-46 W M3 x 6 (Br-Tap) : N87-3006-46 218x2 Parts with the exploded numbers larger than 700 are not supplied.
  • Page 50 TK-690H EXPLODED VIEW (KCH-11) X54 (B/2) X54 (A/2) X M2.6 x 5 (Br-Tap) : N87-2605-46 315x2 M2.6 x 8 (Br-Tap) : N87-2608-46 M3 x 8 (Br-Tap) : N87-3008-46 Parts with the exploded numbers larger than 700 are not supplied.
  • Page 51 TK-690H PACKING 7 Warranty card (B46-0470-00) 37 Polystyrene foamed board 8 Instruction manual (H11-0815-04) (B62-0970-10) 35 Inner packing case (H02-0604-03) 43 Protection bag (H25-2063-04) 16 Short plug (SP) (E37-0733-05) 22 Insulating cover 44 Protection bag (F29-0472-04) (H25-0103-04) 50 Band (J61-0307-05)
  • Page 52 TK-690H PACKING (KCH-10) 210 Carton board (H13-1059-04) 209 Polystyrene foamed board (H11-0894-04) 225 Screw set (N99-0364-05) 213 Protection bag (H25-0117-04) 221 Knob (K29-5276-03) 222 Knob 212 Protection bag (K29-5277-03) (H25-0103-04) 223 Knob (K29-5305-03) 211 Protection bag (H25-0029-04) 219 Knob (K29-4704-04) x 5...
  • Page 53 TK-690H PACKING (KCH-11) 307 Carton board (H13-1059-04) 306 Polystyrene foamed board (H11-0894-04) 322 Screw set (N99-0364-05) 310 Protection bag (H25-0117-04) 318 Knob (K29-5276-03) 319 Knob 309 Protection bag (K29-5277-03) (H25-0103-04) 320 Knob (K29-5305-03) 308 Protection bag (H25-0029-04) 316 Knob (K29-4704-04) x 5...
  • Page 54 TK-690H ADJUSTMENT Test signalling CH Key Functions in Panel Test Mode and NB on Test frequency CH Panel Tune Mode Knob/Key Test mode Tune mode GRP UP Test mode/Tune mode changeover GRP DOWN Monitor ON/OFF UP/DOWN NB ON/OFF Note : When a key other than GRP down is pressed, the...
  • Page 55 TK-690H ADJUSTMENT • Tuning item and display (XXX : 0~255) Tuning item Basic display Full display Note Frequency FREQ_XXX FREQUENCY_XXX_ RF power _POW_XXX POWER_ _ _ _ _XXX_ RF low power LPOW_XXX LOW_POWER_XXX_ Max. deviation MXDV_XXX MAX_DEV_ _ _XXX_ Max. deviation...
  • Page 56 TK-690H ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications Standard Signal Generator Frequency Range 50kHz to 500MHz. (SSG) Modulation Frequency modulation and external modulation. Output 0.1 V to greater than 1mV. Power Meter Input Impedance 50 . Operation Frequency 50MHz or less.
  • Page 57 TK-690H ADJUSTMENT Adjustment Points CN505 FIANL UNIT CN501 X45-355 CN508 CN507 CONTROL UNIT X57-560 B/2 VR501 CN506 MIC SENS CN502 W501 CN504 CN203 L105 L104 L102 L101 CN201 TX-RX UNIT CN101 CN104 X57-560 A/2 L133 L124 A102 NB L132 CN103...
  • Page 58 TK-690H ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 2. Setting • Receiver section • Transmitter section Power meter The indicated SSG output level are for maximum output. Coupler Whenever there is no modulation desingnation,...
  • Page 59 TK-690H ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 6. MCF 1) CH-SIG : 1-1 Spectrum TX-RX CN103 TX-RX L133 Adjust it so it is almost symmetrical, and so the Spectrum analyzer analyzer (A/2) (A/2) L132 gain is maximum.
  • Page 60 TK-690H ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 11. DQT 1) CH-SIG : 1-2 Power meter Rear Panel PF3 key Make the Flat the a parts. balance Select BLNC_XXX Deviation PF4 key demodulation wave-...
  • Page 61 TK-690H ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 17. Squelch 1) CH-SIG : 1-1 Rear Panel PF3 key Adjust to point of Set the value to 255. tight point Select SQ_T_XXX PF4 key opening squelch...

  • Page 62: Tx-Rx Unit (X57-5600-Xx) (A/2)

    TK-690H TERMINAL FUNCTION Connector Terminal Terminal Connector Terminal Terminal Terminal Function Terminal Function Name Name FINAL UNIT (X45-3550-XX) CONTROL UNIT (X57-5600-XX) (B/2) Transmission drive input. W501 Output for remote speaker. Coaxial connector. Output for remote speaker. TX-RX Display Power output after power switch...

  • Page 63: Terminal Function

    TK-690H TERMINAL FUNCTION Connector Terminal Terminal Connector Terminal Terminal Terminal Function Terminal Function Name Name Auxiliary output 1 (FPU selectale). DISPLAY UNIT (X54-3190-20) : KCH-10 Auxiliary output 2 (FPU selectale). (X54-3200-20) : KCH-11 Auxiliary output 3 (FPU selectale). TXD2 Serial data output.
  • Page 64 TK-690H TERMINAL FUNCTION Connector Terminal Terminal Connector Terminal Terminal Terminal Function Terminal Function Name Name Output level : 100mVrms Acc 25 pin D-sub connector (Standard modulation) RSSI signal output. Output frequency response : 300~4.8kHz +1/–5dB RSSI vs ANT input (Typical value) (1kHz=0dB) Auxiliary output 1 (FPU selectable).
  • Page 65 TK-690H PC BOARD VIEWS DISPLAY UNIT (X54-3190-20) Component side view : KCH-10 (B/3) J72-0561-22 (C/3) R41 R42 R43 DOWN J72-0561-22 (A/3) Component side Foil side DISPLAY UNIT (X54-3190-20) Foil side view : KCH-10 J72-0561-22 (A/3) DOWN R41 R42 R43 J72-0561-22 (C/3)
  • Page 66 TK-690H PC BOARD VIEWS Component side Foil side DISPLAY UNIT (X54-3200-20) Component side view : KCH-11 J72-0562-12 A/2 DOWN DISPLAY UNIT (X54-3200-20) Foil side view : KCH-11 DOWN J72-0562-12 A/2...
  • Page 67 TK-690H Note : Components marked with a dot (·) are parts of pattern 1. CIRCUIT DIAGRAM...
  • Page 68 TK-690H CIRCUIT DIAGRAM Note : Components marked with a dot (·) are parts of pattern 1.
  • Page 69 TK-690H PC BOARD VIEW FINAL UNIT (X45-3550-XX) -10 : K -11 : K2 -12 : K3 Component side view J72-0566-02 R35 ANT R110 R111 R112 Component side Foil side...
  • Page 70 TK-690H PC BOARD VIEW TX-RX UNIT (X57-5600-XX) (A/2) -10 : K -11 : K2 -12 : K3 Component side view J72-0565-22 A/2 CN203 C214 CN201 C202 R205 C114 L105 L104 L102 L101 R201 CN104 C126 C123 C120 L112 L110 L108...
  • Page 71 TK-690H PC BOARD VIEW TX-RX UNIT (X57-5600-XX) (A/2) -10 : K -11 : K2 -12 : K3 Foil side view J72-0565-22 A/2 C104 R213 R212 D103 D105 D104 R102 L118 C103 R209 C110 C108 C105 C101 L123 L126 Q115 R141...
  • Page 72 TK-690H PC BOARD VIEW TX-RX UNIT (X57-5600-XX) (A/2) -10 : K -11 : K2 -12 : K3 Component side view + Foil side J72-0565-22 A/2 CN203 C104 CN201 C214 R213 R212 D103 C202 D105 D104 L101 R102 R205 C114 L105...
  • Page 73 TK-690H PC BOARD VIEWS NB (X58-4610-10) Component side view DTC114EK 2SC3722K 2SJ506 AT24C64N10SI27 TDA8561Q DA204U DTC114TU 2SC4116 NJM4558M DTA114YUA DTC114YUA 2SC4215 HSM88AS DTC144EU 2SC4617 DTC363EK DTD114EK 2SA1162 2SC2712 2SB1132 TA7808S MC33172D SA7025DK DAN235K 2SC2873 2SC2954 2SC3357 FMW1 NJM78L05UA MC1350D M62364FP...
  • Page 74 TK-690H PC BOARD VIEW CONTROL UNIT (X57-5600-XX) (B/2) -10 : K -11 : K2 -12 : K3 Component side view J72-0565-22 B/2 IC514 R594 R595 R602 R663 R662 R529 C544 R530 R607 R718 R695 R661 C588 R697 R668 X502 Q503...
  • Page 75 TK-690H PC BOARD VIEW CONTROL UNIT (X57-5600-XX) (B/2) -10 : K -11 : K2 -12 : K3 Foil side view Q543 J72-0565-22 B/2 R740 D515 D519 D517 D513 D523 D521 D516 C698 R734 Q544 R736 C529 R741 R744 Q518 Q540...
  • Page 76 TK-690H PC BOARD VIEW CONTROL UNIT (X57-5600-XX) (B/2) -10 : K -11 : K2 -12 : K3 Component side view + Foil side Q543 J72-0565-22 B/2 R740 D513 D517 D519 D515 D516 D521 D523 C698 IC514 R594 R734 Q544 R595...
  • Page 77 TK-690H Note : Components marked with a dot (·) are parts of pattern 1. CIRCUIT DIAGRAM...

  • Page 78: Wiring

    TK-690H TK-690H WIRING...

  • Page 79: Block Diagram

    TK-690H TK-690H BLOCK DIAGRAM...

  • Page 80: Specifications

    Audio Distortion ..........Less than 2% at 1000Hz Band Spread ............K : 7.3MHz K2 : 8.0MHz K3 : 10.0MHz KENWOOD follows a policy of continous advancement in development. For this reason, specifications may be changed without notice. APPLICABLE (MIL-STD) Military Standard Method/Procedures...
  • Page 81 Mechelsesteenweg 418 B-1930 Zaventem, Belgium KENWOOD ELECTRONICS FRANCE S.A. 13, Boulevard Ney, 75018 Paris, France KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB United Kingdom KENWOOD ELECTRONICS EUROPE B.V. Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands KENWOOD ELECTRONICS ITALIA S.p.A.

This manual is also suitable for:

Tk-690hbTk-690b

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