Kenwood TK-690B Service Manual Download Page 26 | Manualshive

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26

TK-690H

(

B

)

CIRCUIT DESCRIPTION

Item

Rating

Nominal center frequency

10.7MHz

Pass bandwidth

7.5kHz or more at 3dB

Attenuation bandwidth

±

25kHz or less at 40dB

Ripple

1.0dB or less

Insertion loss

2.5dB or less

Guaranteed attenuation

80dB or more at fo

±

1000kHz

Terminating impedance

3.0k

Ω

/ 1.5pF

Table 1

Crystal filter (L71-0534-05)

(TX-RX unit XF101)

Fig. 4

Receiver circuit

ANT

SW

LPF

L11,12,14

D2~4,10

ANT

BPF

L101

IC101

IC504

IC515

AMP

HPF

BEF

RF AMP

Q101,102

BPF

L102,104,105

1st MIX

Q110~113

LPF

TV

D306

TV

T/R

SW

SW

NB

RA

CF102 CF101

Ceramic

filter

X101

11.155

MHz

FM SYSTEM IC

NOISE

AMP

NOISE

DET

RSSI

DET

RSSI

DET

Q108

D106

SQ

455kHz

10.7MHz

VCO

RX VCO

f

RX

+10.7MHz

IC518

(2/2)

IC524

(1/2)

IC524

(2/2)

DE-EMP

EXP

IC512

IC518

(1/2)

IC522

VOL

BUFF

AF PA

VOL

IC516

CPU

27

26

RSSI

ASQ

SP

TX-RX UNIT

CONTROL UNIT

DISPLAY UNIT

FINAL UNIT

Q105,106

IF AMP

Q103

MCF

XF102

IF AMP

Q107

MCF

XF101

A102

Item

Rating

Nominal center frequency

10.7MHz

Pass bandwidth

±

7.5kHz or more at 3dB

Attenuation bandwidth

±

25kHz or less at 18dB

Ripple

0.5dB or less

Insertion loss

2.0dB or less

Guaranteed attenuation

40dB or more at fo

±

1000kHz

Terminating impedance

3.0k

Ω

/ 2.5pF

Table 2

Crystal filter (L71-0533-05)

(TX-RX unit XF102)

3. Squelch Circuit

The output from IC101 enters FM IC again, then passed

through a band-pass filter. The noise component output
from IC101 is amplified by Q108 and rectified by D106 to
produce a DC voltage corresponding to the nose level.

The DC voltage is sent to the analog port of the CPU

(IC516/pin 27). And IC101 output a DC voltage (RSSI) corre-
sponding to the input of the IF amplifier. The CPU reads the
RSSI signal via pin 26. IC101 determines whether to output
sounds from the speaker by comparing the input voltage of
pin 27 with the present value.

Only during scan, the RSSI DC voltage is used together

with the noise wave detection pin's DC voltage (pin 27).

SQ voltage

ANT input level

SQ close

SQ open

Preset
value

RSSI voltage

ANT input level

Preset value

Fig. 5

Squelch and RSSI voltage vs ANT input level

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Summary of Contents for TK-690B

Page 1: ...2 0607 13 Cabinet Lower A01 2164 01 Knob K29 4664 04 x 2 Knob K29 4664 04 x 2 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 ...

Page 2: ...ica tion date Changes which may occur after publication are covered by either Service Bulletins or Manual Revisions which are issued as required ORDERING REPLACEMENT PARTS When ordering replacement parts or equipment informa tion the full part identification number should be included This applies to all parts components kits and chassis If the part number is not known include the chassis or kit nu...

Page 3: ... trunk lid and vehicle chassis using ground straps to ensure the lid is at chassis ground 4 3 Radio The universal mount bracket allows the radio to be mounted in a variety of ways Be sure the mounting surface is adequate to support the radio s weight Allow sufficient space around the radio for air cooling Position the radio close enough to the vehicle operator to permit easy access to the controls...

Page 4: ... cable Delivery Modified of control unit YES NO NO NO KES 4 EXT SP YES KCT 18 YES See page 18 See page 18 See page 17 See page 13 A personal computer IBM PC or compatible programming interface KPG 43 and programming software KPG 44D are required for programming The frequency and signalling data are programmed for the transceiver See Installation manual KCT 23 M2 M4 TK 690H B Frequency range 29 7 3...

Page 5: ...or If MON is pressed once while Default setting MON the RADIO is waiting for reception of MON Full all signalling squelch is canceled function panel If MON is held down for 2 seconds all singalling noise squelch is canceled and the QT DQT audio is unmuted 2 TONE DTMF Scan Start and stop the scanning Default setting SCN sequence of SCN Full function panel Public The RADIO works as a PUBLIC Address ...

Page 6: ...only Dimmer Use this function to adjust the LCD DIM backlight brightness Key backlight TX BUSY LED and DTMF Mic Key backlight ON OFF Function Description Note Key top name Speaker 1 2 Each speaker audio can be Dual HEAD Mute SPM manually disabled from the configuration other control head only Channel UP If is pressed once the channel increases by one step If is held down for 1 second the channel i...

Page 7: ...To select a Group Select a Group by rotating the UP DOWN Knob which has been programmed with Group UP DOWN or by pressing the Keys which have been programmed with Group UP and Group DOWN If the Channel Tracking Function is enabled the chan nel number will not change 4 To Select a Channel Select a Channel by rotaing the UP DOWN Knob which has been programmed with Channel UP DOWN or by pressing the ...

Page 8: ...tes in carrier squelch scan 5 Adding Channels and Groups to the Scan Sequence 1 Channels To add the currently displayed channel to the scan se quence press D A Key The CH ADD indicator lights and the channel is added to the scan sequence 2 Groups To add the currently displayed group of channels to the scan sequence hold down the D A Key for 2 seconds The GR ADD indicator lights and the group is ad...

Page 9: ...n tone sounds the display returns to the normal channel or SCAN display and the IC function will turn off 14 Home Channel HC This feature allows the radio operator to immediately se lect a pre determined Home Channel by pressing the HC Key HC can be activated as follows CASE1 HC has been set as HC Fixed Non Scan Scanning Scan Mode temporary stopping press HC once Change to Home Channel press HC ag...

Page 10: ...lay TX BUSY Panel Keys Microphone backlight LED backlight Keys backlight Default High High High High Press DIM Medium once Press again Low Press again OFF OFF OFF OFF Press again return to return to return to return to High High High High The brightness setting is memorized 22 Speaker 1 2 Mute SPM Dual Head Configuration only This feature allows the radio operator to manually disable the speaker a...

Page 11: ... Reset has been programmed and 4 receiving reset code Primary code or secondary code 28 Time Out Timer Possible to configure to each group The Time Out Timer function interrupts continuous trans mission after a specified time elapses Holding down PTT for longer than the programmed time causes the RADIO to stop transmitting and sound a warning tone To stop the warning tone release PTT 29 Signalling...

Page 12: ...F Low Monitor ON 36 2 PF Output Port AUX A Pressing AUXA once Low Pressing A AUXA again OPEN COLLECTOR AUX B Pressing AUXB once Low Pressing B AUXB again OPEN COLLECTOR AUX C Pressing AUXC once Low Pressing C AUXC again OPEN COLLECTOR TOR Receiving correct QT DQT Low Not receiv ing correct QT DQT OPEN COLLECTOR COR BUSY Low Not BUSY OPEN COLLECTOR 37 Timed Power Off This function works as Automati...

Page 13: ...lay the Power on text for approximately 2 seconds when the transceiver is turned on 41 Data Programming PC Mode 41 1 Preparation and Connection TK 690H transceiver is programmed by using a personal computer programming interface cable KPG 43 and pro gramming software KPG 44D The programming software can be used with an IBM PC or compatible machine Figure 1 shows the setup for pro gramming 41 2 Pro...

Page 14: ...slow 42 1 How to Enter Each Mode Mode Operation User mode Power on PC mode Connect the PC and turn the power on Then the radio can be controlled by the FPU Panel test mode Hold down the PF1 key turn the radio power on Panel tune mode Press the GR key from the panel test mode Clone mode Hold down the PF5 key turn the radio power on Firmware Hold down the PF2 key turn the radio programming mode powe...

Page 15: ...nsceiver Turn on the power switch on the slave side transceiver as usual 2 Connect the master and slave side transceivers with a cloning cable 44 2 All Clone 1 Enter the All Clone Mode from the clone mode with the Up down knob 2 Press the PF5 key to start cloning 44 3 Group Clone 1 Enter the group clone mode from the clone mode with Up Down knob 2 Press the PF5 key to enter the master group select...

Page 16: ...CH 10 or KCH 11 3 Install the KCH 10 or KCH 11 on the radio using the screws N32 3006 46 1 supplied with the front panel kit Take care not to get the lead between the KCH 10 or KCH 11 and an edge of the case You can install the panel upside down if necessary to install the radio 4 Reinstall the upper and lower halves of the case 5 Connection the short plug for the accessory connector 9 pins on the...

Page 17: ...put MCO MIC signal output DEI Detection signal input AC Audio control signal output BC1 Scramble code output 1 BC2 Scramble code output 2 BC3 Scramble code output 3 BC4 Scramble code output 4 TXD2 RXD2 DEO Detection signal output PTO PTT signal output 8C 8V output E Earth Fig 5 3 2 Voice scrambler board connection Modification 1 Remove the upper half of the case of the TK 690H B 2 Remove R515 and ...

Page 18: ...ead then clamp the bottom of the rubber cap with the supplied tie wrap 4 Remove the upper half of the case of the TK 690H B 5 Set jumper resistors 0 ohm R504 R506 R742 and R743 on the control unit X57 560 B 2 as shown in Table 1 Refer to page 21 6 Reinstall the upper half of the case Note If the KCT 18 is used for the KRK 8DBH use the 9 pin plug on the back of radio 1 or the 12 pin plug on the bac...

Page 19: ...e number 6 Fig 8 3 4 Attach the connector to the external speaker connector on the radio 6 2 Connection for the KES 4 with the remote kit KRK 5 KRK 6DH KRK 7DB KRK 8DBH When output is from the 12 pin accessory con nector on the rear of the control head remote operation Modification of plug 12 pin 1 Remove the plug from the accessory connector 12 pins on the rear of the control head 2 Cut off the e...

Page 20: ...3 by setting jumper resistors 0 ohm R640 and R641 on the control unit X57 560 B 2 Refer to page 21 1 MIC signal input output This pin is directly connected to the MIC input pin of the transceiver so it has the same function as the MIC input pin When the input is 5mV 3 kHz DEV 600 ohms modulation is obtained The MIC input is output from the transceiver panel as it is 2 Data audio input The signal f...

Page 21: ...de view Accessory terminal function Page 20 R640 641 Accessory terminal function Page 20 Connection with the remote kit Page 20 Connection with the remote kit Page 20 Connection with the remote kit Page 20 Horn alert Page 20 External speaker Page 18 Ignition sense cable KCT 18 Page 18 Ignition sense cable KCT 18 Page 18 Voice Scrambler Page 17 R515 Voice Scrambler Page 17 ...

Page 22: ... and remove the PLL shield case 2 Remove the connector CN201 and coaxial plugs CN104 CN203 from the final unit and remove the flat cable CN202 upwards from the control unit CN502 3 Remove the 5 screws 4 3 Removing the Final Unit X45 355 1 Remove the 2 screws 5 2 Remove the 3 screws 6 holding the power module and transistor to the frame 3 Desolder two transistors 4 Remove the 1 screw 7 holding TH1 ...

Page 23: ...connector CN505 from D sub connector 25P on the rear 1 3 3 3 1 2 Leaf spring Screw driver IC CN502 CN501 CN506 CN505 5 Removing the Accessory Connector on the Rear 1 Confirm that the screw holding DC cable red and the screw holding DC cable black of the final unit are re moved and that CN506 of the control unit X57 560 B 2 is disconnected Remove the 4 screws on the rear 3 2 Pull out the connector ...

Page 24: ...screws 6 You can remove the display units X54 3190 A 3 and C 3 7 and 8 7 Remove the 3 screws 9 and remove the sub panel 10 and keytop 11 7 Disassembly of the Display Unit X54 3200 KCH 11 1 Pull out the VOL and UP DOWN knobs 1 2 Remove the 2 hexagnal nuts 2 3 Remove the waterproof seal 3 4 Disconnect the connector CN4 of the display unit X54 3200 A 2 and remove the 5 screws 4 you can remove the up ...

Page 25: ...being reduced in the way already described If an abnormal high temperature is detected by the thermistor TH1 DC SW Q2 is made to re duce the reference voltage of the PC tuned This also leads to the transmitter output power being reduced Antenna switching is done by four diodes D2 D3 D4 and D10 with 8T SUM AMP SUM AMP DAC LPF IDC COMP HPF MUTE SW MIC VR501 IC513 IC510 IC510 IC505 IC504 IC505 Q504 P...

Page 26: ...nal center frequency 10 7MHz Pass bandwidth 7 5kHz or more at 3dB Attenuation bandwidth 25kHz or less at 18dB Ripple 0 5dB or less Insertion loss 2 0dB or less Guaranteed attenuation 40dB or more at fo 1000kHz Terminating impedance 3 0kΩ 2 5pF Table 2 Crystal filter L71 0533 05 TX RX unit XF102 3 Squelch Circuit The output from IC101 enters FM IC again then passed through a band pass filter The no...

Page 27: ...e serial data DT CP EP from the microprocessor IC516 is input to the PLL IC And PLL lock condition is al ways monitored by the pin 28 UL of IC516 CIRCUIT DESCRIPTION Fig 6 4 RX BPF L101 102 104 105 The signals are then fed into band pass filter that uses varactor diode tuning to reject unwanted signal compo nents and is fed to the 1st mixer Fig 7 VCO PLL circuit 8CL TX VCO PLL IC IC516 µ com RX VC...

Page 28: ... DESCRIPTION D507 AVR Q506 SW Q543 SW Q542 SW Q544 SW Q503 SW Q519 SW IC501 D FF Q501 SW D501 SW Q502 SW Q541 SW Q507 SW Q518 SW IGN B POF PS SB Fig 8 Power supply circuit 7 Signalling Circuit 7 1 Encode QT DQT The CPU IC516 transmits the encode data selected by the program The data items are output from CPU pin 34 The signal from this pin passes though the CR low pass filter and goes to the summi...

Page 29: ...2 DM1 DM2 DM1 DM2 SB KEY BACK LAMP LCD BACK LAMP S5 PF1 S6 PF2 S7 PF3 S8 PF4 S9 PF5 S1 POWER S2 S3 IC2 RH5VL42C PTT HK D13 RX D17 TX IC3 AT24C64N10SI27 EEPROM AF VR IC1 NJM78L05UA ENCODER SB HK ME MIC E TRD DM BLC PTT INT SP MIC 1 2 TRD RS1 RS2 SB PS RST ED1 IC4 78064GCXXX8EU Microprocessor Fig 10 KCH 10 block diagram CPU containing LCD driver The on off signals of keys other than the power switch...

Page 30: ... changed by the rotary encoder ENC The up down pulses from the rotary encoder enter the CPU IC4 and converted to a serial data signal and are sent to the control unit Power supply Power is supplied to the CPU by converting SB from the control unit to 5V by IC1 And SB is supplied for the LED of backlight CPU The on off signals of keys other than the power switch and the PTT and HOOK signals are con...

Page 31: ...ft register TX RX CS Microprocessor 784214GCXXX8EU Control Unit IC516 Terminal function Pin No Pin name I O Action 40 RXD1 I Serial interface RXD 41 TXD1 O Serial interface TXD 42 STB O Modem STB 43 EC1 O Shift registerl Control CS 44 EI O Shift register Interface CS 45 SEL I O GE STAR I O 46 EPT I GE STAR EPT 47 EMG O GE STAR EMG 48 71 Flash ROM access port 72 VSS GND 73 74 Flash ROM access port ...

Page 32: ... LED Red L ON H OFF 11 GRN O BUSY LED Green L ON H OFF 12 E GND 13 DM1 O Backlight Dimmer 14 DM2 O Backlight Dimmer 15 I Not used 16 K11 I SCN key Full L ON H OFF 17 K12 I PF8 key Full L ON H OFF 18 K13 I PF9 key Full L ON H OFF 19 K1 I PF4 key L ON H OFF 20 K2 I PF5 key L ON H OFF 21 1 2 I HEAD 1 2 jumper HEAD 1 Jumper installed HEAD 2 Jumper removed 22 B F I Panel type Jumper Basic panel Jumper ...

Page 33: ...PROTECTIONS thermal short circuit stand by reference voltage mute reference voltage mute switch 16 14 6 OUT1 8 OUT2 power stage mute switch VA Cm 18kΩ 60 kΩ 2 kΩ _ power stage mute switch VA Cm 18kΩ 60 kΩ 2 kΩ _ 1 GND S 9 2 input reference voltage NC 7 15 11 GND1 GND2 VP1 VP2 5 13 OUT 4 OUT 3 10 12 17 4 INV 1 1 INV 2 3 RR INV 4 INV 3 MODE VDIAG SEMICONDUCTOR DATA Shift register 2 on control unit I...

Page 34: ... Collector dissipation 140W Tj Junction temperature 175 C Tstg Storage temperature 55 to 175 C Final Unit X45 3550 XX 10 K 11 K2 12 K3 Ref No Use Function Operation Condition Q1 TX drive amplifier Q2 DC amplifier APC controller Q3 4 DC switch Q5 TX drive amplifier Q6 APC controller Q7 DC amplifier APC controller Q8 APC comparator APC controller Q9 Final amplifier Q10 Final amplifier Q11 DC switch ...

Page 35: ...l Unit X57 5600 XX B 2 10 K 11 K2 12 K3 Ref No Use Function Operation Condition IC501 D FF Ref No Use Function Operation Condition IC502 LPF IC503 AVR Input SB Output 8V IC504 Audio processor IC505 HPF IDC IC506 AVR Input 8V Output 5V IC508 Limiter Buffer amplifier IC509 Buffer amplifier IC510 Summing amplifier LPF IC511 DTMF encoder IC512 D A converter IC513 LPF Summing amplifier IC514 EEPROM IC5...

Page 36: ...hting ON Q5 DC switch Dimmer Hi Mid ON Q6 DC switch Dimmer Hi Low ON Q7 DC switch Dimmer Hi Mid ON Q9 DC switch PF1 PF2 PF3 key lighting ON DESCRIPTION OF COMPONENTS Ref No Use Function Operation Condition Q11 DC switch PF4 PF5 key lighting ON Q12 13 TRD switch Q14 15 DC switch On when output port on D1 2 Surge absorption D5 Voltage reference D6 11 LCD backlight D12 BUSY LED D13 TX LED D16 17 Surg...

Page 37: ...5 OVAL HEAD MACHINE SCREW O 1B N35 3006 46 BINDING HEAD MACHINE SCREW P 2A 2B N67 3008 46 PAN HEAD SEMS SCREW W Q 1A 1B N68 4006 46 PAN HEAD SEMS SCREW A R 2A 3B N87 2606 46 BRAZIER HEAD TAPTITE SCREW S 2A N87 2612 46 BRAZIER HEAD TAPTITE SCREW T 2B N87 3008 46 BRAZIER HEAD TAPTITE SCREW 59 2H N99 0365 05 SCREW SET ACSY TK 690H B C1 CK73FB1H472K CHIP C 4700PF K C3 5 CK73FB1H472K CHIP C 4700PF K C6...

Page 38: ... 15 TOROIDAL COIL L9 L40 1001 41 SMALL FIXED INDUCTOR 10UH L10 11 L34 1150 05 AIR CORE COIL K K2 L10 11 L34 1241 05 AIR CORE COIL K3 L12 L34 1151 05 AIR CORE COIL K3 L12 L34 1241 05 AIR CORE COIL K K2 L14 L34 1256 05 AIR CORE COIL K3 L14 L34 1259 05 AIR CORE COIL K K2 L15 L40 5675 34 SMALL FIXED INDUCTOR 56NH K L15 L40 6875 34 SMALL FIXED INDUCTOR 68NH K2 K3 L16 L40 2205 34 SMALL FIXED INDUCTOR 22...

Page 39: ...C136 137 CC73GCH1H271J CHIP C 270PF J C138 CK73GB1H102K CHIP C 1000PF K C139 CK73FB1E473K CHIP C 0 047UF K TX RX UNIT X57 5600 XX 10 K 11 K2 12 K3 C140 CC73GCH1H331J CHIP C 330PF J C141 CK73GB1E103K CHIP C 0 010UF K C142 CC73GCH1H470J CHIP C 47PF J C143 CC73GCH1H181J CHIP C 180PF J C144 CK73GB1E103K CHIP C 0 010UF K C145 CK73GB1H102K CHIP C 1000PF K C146 CC73GCH1H221J CHIP C 220PF J C147 CC73GCH1H...

Page 40: ...3 CK73FB1E224K CHIP C 0 22UF K C374 CK73FB1E104K CHIP C 0 10UF K C376 377 CK73GB1H103K CHIP C 0 010UF K C378 CK73FB1E224K CHIP C 0 22UF K C381 382 CK73GB1H103K CHIP C 0 010UF K C383 CK73FB1E224K CHIP C 0 22UF K C384 CK73GB1C473K CHIP C 0 047UF K K2 C384 CK73GB1C683K CHIP C 0 068UF K K K3 C501 CC73GCH1H101J CHIP C 100PF J C524 CK73GB1H102K CHIP C 1000PF K C525 CK73FB1E683K CHIP C 0 068UF K C526 527...

Page 41: ... 05 CHIP TAN 1 0UF 25WV C712 CK73GB1E473J CHIP C 0 047UF J C713 C92 0003 05 CHIP TAN 0 47UF 25WV TC301 302 C05 0393 05 CERAMIC TRIMMER CAP 8PF CN101 E04 0154 05 PIN SOCKET CN102 103 E40 5538 05 PIN ASSY CN104 E04 0154 05 PIN SOCKET CN201 E40 5752 05 PIN ASSY CN202 E40 5978 05 FLAT CABLE CONNECTOR CN203 E04 0154 05 PIN SOCKET CN501 E40 5703 05 PIN ASSY CN502 E40 5978 05 FLAT CABLE CONNECTOR CN504 E...

Page 42: ...03J CHIP R 10K J 1 16W R155 RK73GB1J563J CHIP R 56K J 1 16W R162 163 RK73GB1J152J CHIP R 1 5K J 1 16W R164 165 RK73GB1J560J CHIP R 56 J 1 16W R166 RK73GB1J102J CHIP R 1 0K J 1 16W R167 RK73GB1J474J CHIP R 470K J 1 16W R168 RK73GB1J101J CHIP R 100 J 1 16W R201 RK73GB1J102J CHIP R 1 0K J 1 16W R202 RK73GB1J561J CHIP R 560 J 1 16W R203 RK73GB1J472J CHIP R 4 7K J 1 16W R204 RK73GB1J101J CHIP R 100 J 1...

Page 43: ...M R570 RK73GB1J223J CHIP R 22K J 1 16W R572 RK73GB1J104J CHIP R 100K J 1 16W R573 RK73GB1J274J CHIP R 270K J 1 16W R574 RK73GB1J102J CHIP R 1 0K J 1 16W R575 576 RK73GB1J104J CHIP R 100K J 1 16W R577 RK73GB1J122J CHIP R 1 2K J 1 16W R578 RK73GB1J102J CHIP R 1 0K J 1 16W R579 580 RK73GB1J823J CHIP R 82K J 1 16W R581 582 RK73GB1J683J CHIP R 68K J 1 16W R583 R92 0670 05 CHIP R 0 OHM R584 RK73GB1J333J...

Page 44: ...ACITANCE DIODE D305 1SV214 VARIABLE CAPACITANCE DIODE D306 DAN235K DIODE D501 02CZ18 X Y ZENER DIODE D502 503 1SS355 DIODE D504 02CZ5 6 X Y ZENER DIODE D505 1SS355 DIODE D506 1SS301 DIODE D507 02CZ15 X Y ZENER DIODE D508 1SS355 DIODE D511 1SS301 DIODE D512 1SS355 DIODE D513 517 DA204U DIODE D519 DA204U DIODE D521 DA204U DIODE D523 524 DA204U DIODE D526 527 DA204U DIODE D528 529 1SS355 DIODE IC101 ...

Page 45: ... 100 J 1 16W R7 RK73GB1J102J CHIP R 1 0K J 1 16W R8 RK73GB1J471J CHIP R 470 J 1 16W R9 RK73GB1J330J CHIP R 33 J 1 16W R10 RK73GB1J563J CHIP R 56K J 1 16W R11 RK73GB1J684J CHIP R 680K J 1 16W R12 RK73GB1J102J CHIP R 1 0K J 1 16W R13 RK73GB1J104J CHIP R 100K J 1 16W R14 RK73GB1J223J CHIP R 22K J 1 16W R15 RK73GB1J103J CHIP R 10K J 1 16W R16 RK73GB1J562J CHIP R 5 6K J 1 16W R17 RK73GB1J151J CHIP R 15...

Page 46: ...R 1 0K J 1 16W R34 35 RK73GB1J473J CHIP R 47K J 1 16W R36 RK73GB1J102J CHIP R 1 0K J 1 16W R38 R92 1252 05 CHIP R 0 OHM R39 40 RK73GB1J102J CHIP R 1 0K J 1 16W R41 43 RK73GB1J473J CHIP R 47K J 1 16W R45 R92 2063 05 CHIP R 680 J 1 2W R47 R92 2023 05 CHIP R 820 J 1 2W R48 RK73GB1J472J CHIP R 4 7K J 1 16W R49 51 RK73GB1J473J CHIP R 47K J 1 16W R52 RK73GB1J822J CHIP R 8 2K J 1 16W R54 RK73GB1J103J CHI...

Page 47: ...HIP R 10K J 1 16W R12 RK73GB1J331J CHIP R 330 J 1 16W R13 R92 1281 05 FUSE R 4 7 J 1 4W R14 RK73GB1J473J CHIP R 47K J 1 16W R16 RK73GB1J473J CHIP R 47K J 1 16W R19 20 RK73GB1J473J CHIP R 47K J 1 16W R21 RK73GB1J102J CHIP R 1 0K J 1 16W R22 RK73GB1J101J CHIP R 100 J 1 16W R24 RK73GB1J102J CHIP R 1 0K J 1 16W R26 RK73GB1J472J CHIP R 4 7K J 1 16W R28 32 RK73GB1J102J CHIP R 1 0K J 1 16W R33 34 RK73GB1...

Page 48: ...1 13 13 9 Nx2 Nx2 Nx2 Q Q Rx6 Ox2 Rx4 Rx3 Px5 Tx2 Tx2 Tx2 Mx2 Px2 P Rx5 R R Nx3 Nx3 R Rx2 Rx2 Sx2 Sx2 Sx2 S 701 TX RX A 2 Control B 2 Final KCH 10 KCH 11 M N09 2292 05 N M3 x 6 OC BLK N33 3006 45 O M3 x 6 Bi N35 3006 46 P M3 x 8 N67 3008 46 Q M4 X 8 N68 4006 46 R M2 6 x 6 Br Tap N87 2606 46 S M2 6 x 12 Br Tap N87 2612 46 T M3 x 8 Br Tap N87 3008 46 A1 ...

Page 49: ...th the exploded numbers larger than 700 are not supplied C D 1 2 3 203 206 216 217 227 220 201 205 218x2 Vx4 702 X54 B 3 X54 C 3 U W 703 Vx2 X54 A 3 207 U M2 6 x 5 Br Tap N87 2605 46 V M2 6 x 8 Br Tap N87 2608 46 W M3 x 6 Br Tap N87 3006 46 Wx2 ...

Page 50: ...11 Parts with the exploded numbers larger than 700 are not supplied E F 1 2 3 313 312 317 303 301 315x2 X54 B 2 Yx3 Yx2 X54 A 2 X Zx2 Zx2 704 304 X M2 6 x 5 Br Tap N87 2605 46 Y M2 6 x 8 Br Tap N87 2608 46 Z M3 x 8 Br Tap N87 3008 46 ...

Page 51: ...board H11 0892 04 42 Carton board H13 1066 04 UPC code label 46 Item carton case H52 1378 02 36 Polystyrene foamed fixture H10 6617 11 41 Packing fixture H12 1442 04 38 Polystyrene foamed board H11 0853 04 44 Protection bag H25 0103 04 59 Screw set N99 0365 05 43 Protection bag H25 2063 04 16 Short plug SP E37 0733 05 22 Insulating cover F29 0472 04 50 Band J61 0307 05 37 Polystyrene foamed board ...

Page 52: ...13 Protection bag H25 0117 04 221 Knob K29 5276 03 222 Knob K29 5277 03 223 Knob K29 5305 03 211 Protection bag H25 0029 04 219 Knob K29 4704 04 x 5 208 Polystyrene foamed fixture H10 6622 02 209 Polystyrene foamed board H11 0894 04 212 Protection bag H25 0103 04 214 Item carton case H52 1271 02 ...

Page 53: ...10 Protection bag H25 0117 04 318 Knob K29 5276 03 319 Knob K29 5277 03 320 Knob K29 5305 03 308 Protection bag H25 0029 04 316 Knob K29 4704 04 x 5 305 Polystyrene foamed fixture H10 6622 02 306 Polystyrene foamed board H11 0894 04 309 Protection bag H25 0103 04 311 Item carton case H52 1271 02 ...

Page 54: ...requency CH Test signalling CH Note When a key other than GRP down is pressed the optional signalling is reset Test frequency channel MHz K K2 K3 CH TX RX TX RX TX RX 1 Center 33 300 33 400 39 000 39 100 45 000 45 100 2 Low 29 700 29 800 35 000 35 100 40 000 40 100 3 High 37 000 36 900 43 000 42 900 50 000 49 900 4 33 300 33 300 39 000 39 000 45 000 45 000 5 33 500 33 500 39 200 39 200 45 200 45 2...

Page 55: ...tivity SENS_XXX RX_SENSE_ _XXX_ Sensitivity SENS_XXX RX_SENSE_ _XXX_ Three digits on the upper left side _ _ L Low Transmission and reception at the low edge Sencitivity SENS_XXX RX_SENSE_ _XXX_ Three digits on the upper left side _ _ C Center Transmission and reception at the center Sensitivity SENS_XXX RX_SENSE_ _XXX_ Three digits on the upper left side _ _ H High Transmission and reception at t...

Page 56: ...30A 8 AF Volt Meter Frequency Range 50Hz to 10kHz AF VTVM Voltage Range 3mV to 3V 9 Audio Generator AG Frequency Range 50Hz to 5kHz or more Output 0 to 1V 10 Distortion Meter Capability 3 or less at 1kHz Input Level 50mV to 10Vrms 11 Voltmeter Measuring Range 10 to 1 5V DC or less Input Impedance 50kΩ V or greater 12 4Ω Dummy Load Approx 4Ω 30W 13 Regulated Power Supply Adjustable from 9 to 17V 30...

Page 57: ...e tone Decode tone 1 None None 2 100Hz square wave None 3 QT 67 0Hz QT 67 0Hz 4 QT 151 4Hz QT 151 4Hz 5 QT 250 3Hz QT 250 3Hz 6 DQT 023N DQT 023N 7 Single tone 1633Hz 2 tone 321 7 928 1Hz 8 DTMF 9 DTMF 159 9 MSK None K K2 K3 CH TX RX TX RX TX RX 1 Center 33 300 33 400 39 000 39 100 45 000 45 100 2 Low 29 700 29 800 35 000 35 100 40 000 40 100 3 High 37 000 36 900 43 000 42 900 50 000 49 900 4 33 3...

Page 58: ...F 1 CH SIG 2 1 Spectrum TX RX CN101 TX RX L101 Adjust the coils in Spectrum analyzer analyzer A 2 A 2 L102 the following order Span 50MHz L104 L101 L102 L104 Scale 5dB div Tracking Rear ANT L105 L105 Tracking generator generator Output 20dBm K K2 K3 Adjust it so it is almost symmetrical Adjust it so it is almost symmetrical Adjust it so it is almost symmetrical 1MHz and so the gain is maximum 2MHz...

Page 59: ...load 8 RF power 1 CH SIG 1 1 Power meter Rear ANT Final VR1 Maximum clockwise 115W or more High power Select _POW_XXX Ammeter in tune mode 110W adj 110W 5W 20A or less PTT ON Panel PF3 key Check 110W 1W PF4 key Low power 1 CH SIG 1 1 45W adj 45W 1W Select LPOW_XXX in tune mode PTT ON 9 Maximum 1 Select _ _L Power meter Rear ANT Panel PF3 key 4 05kHz 0 05kHz deviation MXDV_XXX Deviation PF4 key in ...

Page 60: ... DQT 1 CH SIG 1 6 0 75kHz 0 05kHz deviation Select DQDV_XXX in tune mode PTT ON Deviation meter filter HPF OFF LPF 3kHz De emphasis OFF 14 DTMF 1 CH SIG 1 8 3 0kHz 0 1kHz deviation Select DTDV_XXX in tune mode PTT ON Deviation meter filter HPF OFF LPF 15kHz De emphasis OFF 15 MSK 1 CH SIG 1 9 3 0kHz 0 1kHz deviation Select MSDV_XXX in tune mode PTT ON Deviation meter filter HPF OFF LPF 15kHz De em...

Page 61: ...int of is added from the sensitivity meter opening the squelch value of 12dB SINAD Oscilloscope Up down knob Set the NB on 4Ω dummy load 18 Squelch 1 CH SIG 1 1 open point Select SQ_O_XXX in tune mode SSG output Value when 3dB is subtracted from the sensitivity value of 12dB SINAD Up down knob Set the NB on 2 SSG output OFF Check Squelch must be closed 19 NB 1 Output 109dBm 0 8µV SSG Rear ANT Chec...

Page 62: ...eaker Display 3 SB O Power output after power switch unit 13 4V 15 4 IGN I Ignition input 5 PS I Power swith control signal input 6 TRD I O TX data output RX data input 7 1 2 O Remote head 1 signal output 8 RST O RESET signal output 9 E Earth 10 MIC I MIC signal input 11 ME MIC earth CN501 1 B I Power supply input 13 4V 15 To 2 B I Power supply input 13 4V 15 Final 3 E Earth unit CN502 1 PC O TX p...

Page 63: ...io control signal output H OPT SW off L On 5 BC1 O Scramble code output 6 BC2 O Scramble code output 7 BC3 O Scramble code output 8 BC4 O Scramble code output 9 TXD2 O TX data output 2 10 RXD2 I RX data input 2 11 DEO O Detection signal output 12 PTO O PTT signal output 13 8C O Common 8V output 14 E Earth Connector Terminal Terminal I O Terminal Function No No Name CN1 1 ME MIC earth To 2 MIC O MI...

Page 64: ...impedance 1kΩ or less Coupling DC coupling Acc 25 pin D sub connector Connector Terminal Terminal I O Terminal Function No No Name Output level 100mVrms Standard modulation Output frequency response 300 4 8kHz 1 5dB 1kHz 0dB 20 AO1 O Auxiliary output 1 FPU selectable 21 AO3 O Auxiliary output 3 FPU selectable 22 AO4 O Auxiliary output 4 FPU selectable 23 SQ O Squelch signal output L Busy H Not bus...

Page 65: ... 3 SB NC NC PTT BLC DM NC TRD E MIC ME HK J1 MIC 26 25 1 100 76 75 51 50 ED1 8 1 C17 C27 C30 C32 C35 CN4 IC2 G O I IC3 1 4 5 8 R1 R16 R18 R2 R21 R23 R24 R26 R29 R30 R31 R32 R33 R34 R35 R36 R39 R40 R48 C37 CN2 X1 C28 C29 Q3 Q5 Q6 Q7 Q12 Q13 R54 CN6 8 1 D1 D16 D17 D19 D2 D20 D21 D24 CN3 CN1 R55 Q14 Q15 R12 R11 R9 R7 D25 R67 1 9 IGN SB E MIC ME AI1 AI2 AO1 AO2 1 11 RS2 RS1 SB IGN PS TRD 1 2 RST E MIC...

Page 66: ...5 R53 R51 R49 R47 R45 R46 R48 R50 R52 R54 R56 IC4 IC3 C67 C66 R26 C35 C27 IC2 O I G C36 C32 C40 CN4 R42 R20 R19 R14 R16 R34 R33 R31 R21 R22 R11 R2 R1 R24 R28 R29 R39 CN2 C30 C14 X1 C28 C29 R63 Q3 Q6 R13 Q10 Q9 R65 D1 D11 D12 D14 D15 D16 D18 D2 CN1 CN3 CN5 R66 Q14 Q15 D19 R67 1 9 IGN SB E MIC ME AI1 AI2 AO1 AO2 11 1 RS2 RS1 SB OGN PS TRD 1 2 RST E MIC ME RS1 RS2 1 2 3 1 1 E VCC CE CL DI DO NC LEDA ...

Page 67: ...T R P N L J H F D B S Q O M K I G E C A 1 3 5 7 2 4 6 CIRCUIT DIAGRAM TK 690H B Note Components marked with a dot are parts of pattern 1 72 ...

Page 68: ...A C E G I K M O Q S B D F H J L N P R T 1 3 5 7 2 4 6 TK 690H B CIRCUIT DIAGRAM 73 Note Components marked with a dot are parts of pattern 1 ...

Page 69: ... C17 C18 C16 C32 C19 R3 R1 R2 C5 L1 C3 C7 L9 R6 C12 C15 C6 C24 C27 C31 C44 C47 C46 C43 C39 C49 C50 R27 R14 C53 C54 C56 C59 C61 C63 C55 R7 C8 C1 C4 C10 R23 R24 D7 L2 L15 L16 L18 Q3 CN5 B CN4 GND W4 1 3 C35 L7 C36 C58 C13 C20 D1 D5 D6 D9 Q2 Q4 Q7 Q11 R18 R19 C64 L4 L5 E B B R12 C E B Q5 C E B Q1 E C B Q6 L3 W1 W1 Q9 E E B C E E Q10 E E B C E E TH1 L8 A1 W5 1 5 DB E 8R 8T PC 1 3 4 5 L1 L12 L17 R35 AN...

Page 70: ... C376 C377 C378 C381 C382 C383 L313 L314 R366 R367 TC301 C TC302 A C120 C123 C126 C192 C193 R10 R11 R12 R146 R147 R148 R149 R150 R151 R152 R153 R154 L125 C317 C320 L131 L132 L133 L128 L129 XF101 XF102 L124 Q306 G D S G D S G G D D S S G G D D S S Q307 Q111 Q113 Q112 Q110 L305 L306 R167 CF101 CF102 D301 D302 D303 D304 C323 C324 C327 CD101 CN104 RA CN101 CN203 DO X301 8T 8R E C B 8CL MB OUT 1 10 11 ...

Page 71: ...R136 R137 R139 R140 R141 R142 R144 R145 R203 R206 R208 R209 R210 R211 R212 R213 R214 R301 R306 R307 R309 R311 R312 R313 R314 R320 R321 R322 R330 R333 R342 R109 C181 C182 R323 Q101 G D S G D S Q102 R310 C373 R327 R122 C183 C185 C186 C194 C197 C198 L127 L130 R108 R110 R162 R163 R164 R165 Q303 Q304 C189 C190 R166 Q103 G D S G D S G D S Q106 Q105 C142 C160 L135 IC201 1 8 9 16 C131 C147 C148 C155 C157 ...

Page 72: ...03 L304 L307 L308 L309 L310 L311 Q203 B C E Q308 Q309 Q311 Q312 Q313 R107 R112 R113 R114 R118 R138 R201 R202 R205 R207 R302 R303 R304 R305 R315 R316 R317 R318 R319 R324 R325 R326 R328 R329 R331 R332 R334 R335 R336 R337 R338 R339 R340 R341 R343 R344 R345 R346 R347 R348 R349 R350 R351 R352 R353 R354 R355 R356 R357 R358 C116 C207 CN102 CN103 1 2 R204 C222 C223 R359 X101 L102 L104 L105 L101 R168 L312 ...

Page 73: ...23 R24 R25 R26 R27 R28 R29 R3 R30 R31 R32 R4 R5 R7 R8 Q1 Q7 Q6 Q5 Q4 J72 0625 02 86 PC BOARD VIEWS NB X58 4610 10 Component side view NB X58 4610 10 Foil side view TK 690H B Component side Foil side 85 DTC114EK DTC114TU DTC114YUA DTC144EU DTC363EK DTD114EK 2SA1162 2SC2712 2SC3722K 2SC4116 2SC4215 2SC4617 2SB1132 2SC2873 2SC2954 2SC3357 FMW1 5 3 2 1 DTA114EUA DTA114TUA DTA144TKA 3SK131 2SK508NV 2SK...

Page 74: ...516 Q517 R728 C598 R713 R714 IC524 C526 C601 IC520 R504 R661 R697 R537 R509 C527 C524 Q503 R676 R718 C703 Q541 R742 R748 R747 TI J72 0565 22 B 2 1 4 5 8 1 4 5 8 8C 1 4 5 8 PC TV RSI SQL DET E 8C KEY CK ES DT SB MB MO CP EP UL NC 1 18 DE3 5C 1 4 5 8 TP 1 11 12 22 23 33 34 44 SB 1 7 8 14 1 4 5 8 MIC SENS CN504 1 10 AFO DE3 E EI CK DT RST 5C PSC CS CN505 SB SID SIH SIA SIE DEO AO1 AO3 AO4 SQ SPM ME R...

Page 75: ...C704 R720 R721 R738 R737 R739 IC508 IC513 IC510 R745 C713 C529 C537 C540 C545 C607 C639 D502 D505 D508 IC519 R501 R502 R505 R513 R521 R523 R526 R528 R666 R670 IC501 L502 R510 R511 Q501 Q502 Q518 Q506 Q507 D504 D507 D501 C699 C712 R741 R744 Q542 Q544 Q543 R740 J72 0565 22 B 2 1 12 13 24 1 4 5 8 1 4 5 8 1 7 8 14 1 1 4 4 5 5 8 8 1 8 9 16 1 4 5 8 1 16 17 32 1 8 9 16 1 2 4 5 3 1 7 8 14 Component side F...

Page 76: ...7 R716 R690 IC502 IC518 IC521 R725 X502 R746 C531 C533 C535 C536 C539 C546 C550 C553 C558 C562 C584 C608 C609 C611 C615 C617 C624 C625 C626 C628 C630 C688 C689 C690 C691 R516 R517 R519 R520 R522 R524 R542 R543 R552 R574 R587 R604 R621 R624 R625 R626 R632 R636 R638 R639 X501 IC504 IC525 R617 R618 R620 R619 R629 R630 R700 C700 Q516 Q517 R728 C598 R713 R714 IC524 C526 C601 IC520 R504 R661 R697 R537 R...

Page 77: ...T R P N L J H F D B S Q O M K I G E C A 1 3 5 7 2 4 6 CIRCUIT DIAGRAM TK 690H B Note Components marked with a dot are parts of pattern 1 96 ...

Page 78: ...TK 690H B TK 690H B 97 WIRING ...

Page 79: ...TK 690H B TK 690H B 100 BLOCK DIAGRAM ...

Page 80: ... and Noise 55dB Microphone Impedance 600Ω 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 810C 810D 810E Low Pressure 500 1 Procedure I 500 2 Procedure I II 500 3 Procedure I II High tem...

Page 81: ...ey 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 Via G Sirtori 7 9 20129 Milano Italy KENWOOD IBERICA S A Bolivia 239 08020 Barcelona Spain KENWOOD ELECTRONICS AUSTRALIA PTY LTD A C N 001 499 074 16 Giffnock Avenue Ce...

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