Kenwood TK-260G Скачать руководство пользователя страница 2

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VHF FM TRANSCEIVER

TK-260G/(N)/270G/(N)

2000-4 PRINTED IN JAPAN

B51-8532-00(S) 570

SERVICE MANUAL

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

SYSTEM SET-UP .......................................................... 2

OPERATING FEATURES .............................................. 3

REALIGNMENT ............................................................. 8

DISASSEMBLY FOR REPAIR ..................................... 17

CIRCUIT DESCRIPTION ............................................. 18

SEMICONDUCTOR DATA .......................................... 22

DESCRIPTION OF COMPONENTS ............................ 24

PARTS LIST ................................................................. 25

EXPLODED VIEW ....................................................... 33

PACKING ..................................................................... 35

CONTENTS

Key top (DTMF)
(K29-5330-02)

TK-260G

TK-270G

ADJUSTMENT ............................................................. 36

PC BOARD VIEWS

DISPLAY UNIT (X54-3250-10) ............................... 47

TX-RX UNIT (X57-587X-XX) .................................. 49

SCHEMATIC DIAGRAM .............................................. 55

BLOCK DIAGRAM ....................................................... 63

LEVEL DIAGRAM ........................................................ 65

KNB-14/KNB-15A (Ni-Cd BATTERY) .......................... 66

OPTIONS ..................................................................... 67

SPECIFICATIONS ................................... BACK COVER

Knob (CHANNEL SELECTOR)
(K29-5341-03)

Knob (VOL)
(K29-5332-03)

Cabinet assy
(A02-2391-23)

Knob (PTT)
(K29-5334-13)

Antenna
(T90-0695-15):E,(N)E
(T90-0680-05):(N)T
(T90-0681-05):(N)E2

Knob (ENC)
(K29-5331-03)

Knob (VOL)
(K29-5332-03)

Cabinet assy
(A02-2385-23)

Knob (PTT)
(K29-5334-13)

Knob (Side1)
(K29-5333-13)

E VERSIONS

M market models are shown.

Содержание TK-260G

Страница 1: ...ing or otherwise for any purpose without the prior written permission of 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 the right to make changes to any products herein at any t...

Страница 2: ...270G ADJUSTMENT 36 PC BOARD VIEWS DISPLAY UNIT X54 3250 10 47 TX RX UNIT X57 587X XX 49 SCHEMATIC DIAGRAM 55 BLOCK DIAGRAM 63 LEVEL DIAGRAM 65 KNB 14 KNB 15A Ni Cd BATTERY 66 OPTIONS 67 SPECIFICATIONS BACK COVER Knob CHANNEL SELECTOR K29 5341 03 Knob VOL K29 5332 03 Cabinet assy A02 2391 23 Knob PTT K29 5334 13 Antenna T90 0695 15 E N E T90 0680 05 N T T90 0681 05 N E2 Knob ENC K29 5331 03 Knob VO...

Страница 3: ...xplosive atmosphere This equipment should be serviced by a qualified technician only SERVICE This radio is designed for easy servicing Refer to the schematic diagrams printed circuit board views and alignment procedures contained within NOTE The terms Wide and Semi wide used in this service manual correspond to Wide 5K and Wide 4K respectively that appear in the menu and help texts of the KPG 56D ...

Страница 4: ...o hear background noise Press the key again to return to normal operation Monitor C Carrier Squelch Momentary Press and hold the Monitor key to deactivate QT DQT 2 Tone or DTMF signalling Release the key to return to normal operation Monitor D Carrier Squelch Toggle Momentarily press the Monitor key to deactivate QT DQT 2 Tone or DTMF signalling Press the key again to return to normal operation No...

Страница 5: ... channel number and group channel name 3 Group up down TK 270G only When the key is pressed each time the group number to be selected is incremented decremented and repeats if held for one second or longer 4 Home Channel TK 270G only Press this key once the channel switches to the pre programmed home channel 5 Key lock TK 270G only When the KEY LOCK switch is held down for one second or more keys ...

Страница 6: ... 270G only Icon Description Not used on this transceiver Appears when the selected channel is busy Appears when QT DQT DTFM or 2 Tone decoding is deactivated by pressing the Monitor key Appears when you receive a Code Squelch Selective Call 2 Tone or DTMF Signalling call Also appears when you transmit using Code Squelch or Selective Call Appears while scanning Appears when using low power on the s...

Страница 7: ...n and End of TX ID is sent at the end of transmission There is also a PTT ID setting for each channel 3 Scan Stop Condition The scan stops temporarily if the following conditions are satisfied 1 The receiving signal matches the signalling code in your radio that is set by the programming software KPG 56D 2 When the Monitor key is depressed 4 Scan Channel Types 1 Priority channel is the most import...

Страница 8: ... available for option signalling Built in 2 Tone decoder is available for option signalling It is possible to use individual call group call DBD Dead Beat Disable Note DBD is only DTMF Preset operation is triggered when there is a match with Option Signaling When Option Signaling matches on a Group Channel where it is set to Yes the Option Signaling display flashes and Option Signaling is canceled...

Страница 9: ...de Operation User mode Power ON Panel test mode 2 Power ON Two seconds TK 270G only PC mode Received commands from PC Panel tuning mode Panel test mode Firmware programming mode Side1 Side2 Power ON Two seconds Clone mode Side1 3 Power ON Two seconds Self programming mode Side1 Power ON Two seconds TK 270G only 1 Modes Mode Function User mode For normal use Panel test mode Used by the dealer to ch...

Страница 10: ...G 270G to the computer It has a circuit in its D subconnector 25 pin case that converts the RS 232C logic level to the TTL level The KPG 22 connects the SP MIC connector of the TK 260G 270G to the computers RS 232C serial port 5 4 Programming software description The KPG 56D programming disk is supplied in 3 1 2 disk format The software on this disk allows a user to program the TK 260G 270G radios...

Страница 11: ...he SP MIC connectors on the master and slave 4 Press the key on the master while the master displays CLONE The data of the master is sent to the slave While the slave is receiving the data PC is displayed When cloning of data is completed the master displays END and the slave automatically operates in the User mode The slave can then be operated by the same program as the master When programming t...

Страница 12: ...amming mode cannot be set when it has been disabled with the FPU Note Self programming is disabled if a Trunking Board is installed in this Radio is selected in the FPU D17 X57 587X Compoent Side Radio type Portable Mobile Side2 Radio Band Channel Type Function set mode Frequency Version Self programming mode 2 2 Side1 VHF 8CH Channel set mode 2 3 VHF 128CH UHF 16CH UHF 128CH CH VHF 16CH CH CH CH ...

Страница 13: ...ithout using the FPU Pressing Side2 when SELF is displayed sets Channel Setting Mode Select an item set using 3 then change the selection with the encoder The data displayed using 2 is stored in the memory and then proceeds to the next item Pressing 3 proceeds to the next item without storing it in the memory Press Side2 to set the display to SELF and return to reset default status All channel dat...

Страница 14: ...he encoder The data displayed using 2 is stored in the memory and then proceeds to the next item Pressing 3 proceeds to the next item without storing it in the memory Press Side1 to display SELF and return to reset default status Function Setting Mode No Function Choices Display Remarks Function Key 1 Side1 No Function LAMP_OFF Default TK 260G Talk Around LAMP_3 TK 260G cannot be selected K M E de...

Страница 15: ...NTT_YES Default YES 10 Warning Tone YES NO WART_YES Default YES 11 Time Out Timer OFF 15 300 15sStep TOT_60 Default 60s REALIGNMENT No Function Choices Display Remarks 2 Side2 Monitor C MON_19 Monitor D MON_20 RF Power Low MON_21 Scan MON_22 TK 260G cannot be selected Scan DEL ADD MON_23 TK 260G cannot be selected Group Down MON_24 TK 260G cannot be selected Group Up MON_25 TK 260G cannot be selec...

Страница 16: ... Delay Time 24 Dwell Time 0 300 1s DWL___3 Default 3s DTMF 25 Digit Time 50 200 10ms DIGT__50 Default 50ms 26 Inter Digit Time 50 200 10ms IDT___50 Default 50ms 27 First Digit Time 50 200 10ms FDT___50 Default 50ms 28 FirstDigitDelay 100 1000 50ms RIST_100 Default 100ms 29 RiseTimewithQT 100 1000 50ms RTWQ_100 Default 100ms 30 DIAL ID Enable DID_ENA Disable DID_DIS Default 31 No of 12Key NODK_12 D...

Страница 17: ... set mode Side1 Side1 key function MON key function 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 key function 3 key function CH key function Time Out Timer T O T Pre alert time T O T Rekey time T O T Reset time Power on tone yes no Contorol tone yes no WArning tone yes no Battery Save o...

Страница 18: ...with connector n Separating the chassis from the unit TK 260G 1 Remove the twelve small screws m and the three large screws 2 Remove the solder from the antenna terminal using a soldering iron then lift the unit off X57 TK 270G 1 Remove the three screws Lift the unit X54 and rise up the connecter lever in the arrow with your finger Remove the three hexagonal bossesΩ and remove the twelve screws m ...

Страница 19: ... channel signal The filtered first IF signal is amplified by the first IF amplifier Q22 and then applied to the lF system IC IC4 The IF system IC provides a second mixer second local oscillator limiting amplifier quadrature detector and RSSI Received Signal Strength Indicator The second mixer mixes the first IF signal with the 50 4MHz of the second local oscillator output TCXO X3 and produces the ...

Страница 20: ...TD 93 ANSQL TOI 95 FM IF IC4 5 43 Q36 SW Q32 33 34 SW DE EMP MUTE EXP HPF LPF HPF BEF IC14 2 1 IC15 2 2 AF AMP 41 IC11 AF PA AMP Q30 SW SP OUTPUT EXPANDER IC6 5RC SP MUTE 5 7 3 PLL DATA 16 8MHz REF OSC I M I N PLL IC IC2 PHASE COMPARATOR CHARGE PUMP LPF 5kHz 6 25kHz D2 4 D9 11 Q2 TX VCO Q10 RX VCO Q3 BUFF AMP Q4 RF AMP Q1 RF AMP Q7 8 T R SW 5kHz 6 25kHz 3 DTMF The DTMF input signal from the IF IC ...

Страница 21: ...rols the VGG of the RF power amplifier to make both voltages the same The change of power high low is carried out by the change of the reference voltage 4 Encode signaling 1 QT DQT QT DQT data of the TOTCXO Line is output form pin 20 of the CPU The signal passes through a low pass CR filter and goes to the TCXO X1 The QT DQT data of the TOVCO Line is output form pin 22 of the CPU The signal passes...

Страница 22: ...his oscillator has a circuit that shifts the frequency by BEAT SHIFT SW Q31 2 Memory circuit Memory circuit consists of the CPU IC13 and a flash memory IC12 A flash memory has a capacity of 2M bits that contains the transceiver control program for the CPU and data such as transceiver channels and operating features This program can be easily written from an external device Data such as DTMF memori...

Страница 23: ... VCC1 2 IN 3 IN 4 GND 5 SW1 6 SW2 7 OUT 8 VCC2 Block diagram Pin Pin Applied Pin Functions and uses No name voltage voltage 1 VCC1 2 2 2 5 Power supply voltage pin for the input amplifier section and division circuit Connect a bypass capacitor to this pin to reduce thehigh frequencyimpedancewiththeground forexample 1000pF 2 IN 1 7 4 95 Signal input pin Connect a coupling capacitor to this pin for ...

Страница 24: ... 45 LCDCS O LCD chip enable output 46 CNTDAT O Common data output EEPROM LCD SHIFTREG 1bitD AMODEM 47 CNTCLK O Common clock output EEPROM LCD SHIFTREG 1bitD AMODEM Pin Port I O Function No Name Pin Port I O Function No Name 4 W N O Wide Narrow SW K M Narrow L Wide Semi wide SW E N E Semi wide L 5 MUTE O RX audio MIC mute Mute L 6 NC O NC 7 LED0 O RED LED LED lights H 11 BSHIFT O Beat Shift Shift o...

Страница 25: ...ansistor DC switch LED Red Q25 Transistor DC Switch LED Green Q26 Transistor DC switch Squelch Q27 FET DC switch 5T Save Q28 Transistor DC switch 5M Q30 FET SP Mute switch Q31 Transistor Clock frequency shift Q32 34 Transistor DC switch SP Mute Q35 1 2 FET Mute switch MIC line mute Q35 2 2 FET DC switch Q36 FET Mute switch Q301 FET RF amplifier D1 Diode Unlock detect D2 Variable Frequency control ...

Страница 26: ...TK 260G N 270G N 25 PARTS LIST ...

Страница 27: ...4 R501 510 RK73GB1J102J CHIP R 1 0K J 1 16W R511 R92 1252 05 CHIP R 0 OHM R512 RK73GB1J102J CHIP R 1 0K J 1 16W R513 515 RK73GB1J103J CHIP R 10K J 1 16W R516 RK73GB1J473J CHIP R 47K J 1 16W R517 RK73GB1J103J CHIP R 10K J 1 16W R518 RK73GB1J471J CHIP R 470 J 1 16W R519 522 RK73GB1J102J CHIP R 1 0K J 1 16W DISPLAY UNIT X54 3250 10 TK 270G only 1 1C A02 2385 23 CABINET ASSY 270G 2 1A A02 2391 23 CABI...

Страница 28: ...C73GCH1H101J CHIP C 100PF J C45 CK73GB1H471K CHIP C 470PF K C48 49 C92 0001 05 CHIP C 0 1UF 35WV TX RX UNIT X57 5872 XX 71 TK 260G E 73 TK 270G E 72 TK 260G N E N T 74 TK 270G N E N T 75 TK 260G N E2 DISPLAY UNIT X54 3250 10 C51 C92 0514 05 CHIP TAN 2 2UF 10WV C52 CC73GCH1H050B CHIP C 5 0PF B C C52 CC73GCH1H390J CHIP C 39PF J A B D E C53 CK73GB1H102K CHIP C 1000PF K C54 CK73FB1C474K CHIP C 0 47UF ...

Страница 29: ...IP C 0 47UF K C205 CK73GB1H103K CHIP C 0 010UF K C206 208 CK73GB1C104K CHIP C 0 10UF K C209 CK73GB1H332K CHIP C 3300PF K C210 CK73GB1H102K CHIP C 1000PF K C211 C92 0507 05 CHIP TAN 4 7UF 6 3WV C212 CK73GB1H122K CHIP C 1200PF K C213 CK73GB1H103K CHIP C 0 010UF K C215 CK73GB1C104K CHIP C 0 10UF K C216 CK73GB1H332K CHIP C 3300PF K C217 CK73GB1E153K CHIP C 0 015UF K C218 CK73FB1H563K CHIP C 0 056UF K ...

Страница 30: ...CTOR 100NH L32 L40 1005 85 SMALL FIXED INDUCTOR 10U L35 L40 1285 92 SMALL FIXED INDUCTOR 120NH A B D E L35 L40 1585 92 SMALL FIXED INDUCTOR 150NH C L36 L40 1085 85 SMALL FIXED INDUCTOR 0 10U C L36 L40 1285 85 SMALL FIXED INDUCTOR 0 12U A B D E L37 L40 5685 85 SMALL FIXED INDUCTOR 0 56U C L37 L40 8285 85 SMALL FIXED INDUCTOR 0 82U A B D E L38 L92 0138 05 FERRITE CHIP L39 L92 0149 05 FERRITE CHIP L4...

Страница 31: ... CHIP R 3 9K J 1 16W A D R99 RK73GB1J684J CHIP R 680K J 1 16W R100 RK73GB1J473J CHIP R 47K J 1 16W R101 RK73GB1J104J CHIP R 100K J 1 16W R102 103 RK73GB1J272J CHIP R 2 7K J 1 16W R104 RK73GB1J472J CHIP R 4 7K J 1 16W R105 RK73GB1J472J CHIP R 4 7K J 1 16W A D R106 RK73GB1J272J CHIP R 2 7K J 1 16W R107 RK73GB1J470J CHIP R 47 J 1 16W R108 RK73GB1J152J CHIP R 1 5K J 1 16W A D R108 RK73GB1J272J CHIP R ...

Страница 32: ...1J104J CHIP R 100K J 1 16W R232 RK73GB1J152J CHIP R 1 5K J 1 16W R233 R92 1252 05 CHIP R 0 OHM R234 RK73GB1J124J CHIP R 120K J 1 16W R235 RK73GB1J334J CHIP R 330K J 1 16W R237 R92 1252 05 CHIP R 0 OHM R239 RK73GB1J153J CHIP R 15K J 1 16W R240 RK73GB1J223J CHIP R 22K J 1 16W R241 RK73GB1J334J CHIP R 330K J 1 16W R242 R92 1252 05 CHIP R 0 OHM R244 RK73GB1J561J CHIP R 560 J 1 16W R247 249 R92 1252 05...

Страница 33: ...I IC TERMINAL VOLTAGE IC18 LC73872M IC DTMF RECEIVER IC19 TA75W01FU IC OP AMP X2 IC301 UPB1509GV IC Q1 2SC5108 Y TRANSISTOR Q2 2SC4226 R24 TRANSISTOR Q3 4 2SC5108 Y TRANSISTOR Q6 2SC4988 TRANSISTOR Q7 2SJ243 FET Q8 UMC4 TRANSISTOR Q9 DTC144EE DIGITAL TRANSISTOR Q10 2SK508NV K52 FET Q11 2SC4617 S TRANSISTOR Q12 2SC4649 N P TRANSISTOR Q13 DTA144EE DIGITAL TRANSISTOR Q15 DTC114EE DIGITAL TRANSISTOR Q...

Страница 34: ...P 30 A M3 6x4 N09 2319 05 B M2x3 5 N09 2331 05 C NUT N14 0582 14 D NUT N14 0583 04 E NUT N14 0588 04 F M2 6x6 N30 2606 46 G M3x4 N30 3004 46 I M2x5 N67 2005 46 J φ2x4 5 N78 2045 46 K φ2x3 N79 2030 46 L φ2x5 N82 2005 46 E D 8 3 40 Lx7 IC1 44 18 L I 16 17 Gx2 B 39 11 TX RX unit A 2 26 A 28 L 9 702 24 J TX RX unit B 2 15 J F K 704 703 10 49 37 21 51 ...

Страница 35: ...27 SP 14 A M3 6x4 N09 2319 05 B M2x3 5 N09 2331 05 C NUT N14 0582 14 D NUT N14 0583 04 F M2 6x6 N30 2606 46 H M2x3 N39 2030 46 I M2x5 N67 2005 46 J φ2x4 5 N78 2045 46 K φ2x3 N79 2030 46 L φ2x5 N82 2005 46 43 J D 42 6 5 12 3 38 Lx8 IC1 I H H 16 18 25 19 20 DISPLAY unit 53 17 46 13 B 39 11 TX RX unit A 2 26 A 28 B 9 702 24 J TX RX unit B 2 15 F K 704 703 10 49 37 21 51 ...

Страница 36: ...3 33 PROTECTION BAG H25 0085 04 42 SP MIC HOLDER J21 4493 04 M SCREW SET N99 2012 05 32 PACKING FIXTURE H12 1487 02 UPC CODE LABEL 35 ITEM CARTON CASE H52 1413 02 270G 36 ITEM CARTON CASE H52 1417 02 260G ANT HELICAL ANTENNA T90 0695 15 E N E T90 0680 05 N T T90 0681 05 N E2 7 INSTRUCTION MANUAL B62 1293 10 260G INSTRUCTION MANUAL B62 1294 10 270G ...

Страница 37: ...easuring Range 10mV to 10V DC DVM Input Impedance High input impedance for minimum circuit loading 5 Oscilloscope DC through 30MHz 6 High Sensitivity Frequency Range 10Hz to 1000MHz Frequency Counter Frequency Stability 0 2ppm or less 7 Ammeter 5A 8 AF Volt Meter Frequency Range 50Hz to 10kHz AF VTVM Voltage Range 1mV to 10V 9 Audio Generator AG Frequency Range 50Hz to 5kHz or more Output 0 to 1V ...

Страница 38: ...and turn the power on Hold the 2 key until the test channel No and test signalling No appear on LCD Test mode can be inhibited by programming To exit test mode switch the power on again The following functions are available in test mode Controls PTT Used when making a transmission Side2 Monitor ON and OFF Side1 Changes wide and narrow Sets to the Tuning mode Unused 2 RF power HIGH and LOW 3 Change...

Страница 39: ...RX TX 1 None None 2 None 100Hz square wave 3 QT 67 0Hz QT 67 0Hz 4 QT 151 4Hz QT 151 4Hz 5 QT 210 7Hz QT 210 7Hz 6 QT 250 3Hz QT 250 3Hz 7 DQT D023N DQT D023N 8 DQT D754I DQT D754I 9 DTMF DEC 159D DTMF ENC 159D 10 None DTMF tone 9 11 2 tone 321 7 928 1Hz ENC 12 Single tone 1200Hz Single tone 1200Hz Frequency MHz N E2 type Channel No RX Frequency TX Frequency 1 143 05000 143 00000 2 136 05000 136 0...

Страница 40: ...deviation W L F Q T QTfine deviation W C F Q T QTfine deviation W H F D Q T DQTFinedeviation W L F D Q T DQTFinedeviation W C F D Q T DQTFinedeviation W H S E N S Sensitivity Low S E N S Sensitivity Cen S E N S Sensitivity Hi Wide V Q T Narrow Narrow QT VCO balance Narrow X Q T QTTCXObalance Narrow Side1 Side1 V Q T QT VCO balance Wide X Q T QTTCXObalance Wide V Q T QT VCO balance W L V Q T QT VCO...

Страница 41: ...ropriate adjustment item 1 Frequency 1 PTT ON Freq Counter ANT VR1 Center frequency Adjust Power meter 143 0 MHz 50Hz N E2 Am meter 160 0 MHz 50Hz E N E N T 2 Max Power 1 Adj item HPOW Check 5 2W or more Check Adjust 256 2 Adj item H P O W H P O W H P O W H P O W H P O W Adjust 256 PTT ON 3 Hight Power 1 Adj item HPOW Encoder 5 0W 0 1W Adjust Adjust knob 2 2A or less 2 Adj item H P O W H P O W H P...

Страница 42: ... knob According to Wide 5K AG 1kHz 120mV Oscilloscope the larger E Dev meter filter AG LPF 15kHz AF VTVM HPF OFF 2 Adj item M A X M A X M A X Adjust PTT ON Narrow 1 Adj item MAX 2 1kHz N E N E2 N T Adjust According to AG 1kHz 120mV the larger Dev meter filter LPF 15kHz HPF OFF 2 Adj item M A X M A X M A X Adjust PTT ON Wide 4K 1 Adj item MAX 3 3kHz E Adjust According to PTT ON the larger 8 MIC Pan...

Страница 43: ...D Q T V D Q T Adjust PTT ON Narrow 1 Adj item VDQT N E N E2 N T Adjust LPF 3kHz HPF OFF 2 Adj item V D Q T V D Q T V D Q T Adjust PTT ON Wide 4K 1 Adj item VDQT E Adjust PTT ON 12 QT VCO Adj item V Q T Balance Adjust 200 VDQT x VQT 150 13 QT Deviation 1 Adj item FQT Wide 5K 0 90kHz 40Hz Adjust Adjust Narrow 0 42kHz 40Hz LPF 3kHz Wide 4K 0 72kHz 40Hz HPF OFF Wide 5K 2 Adj item E F Q T F Q T F Q T A...

Страница 44: ...PF OFF E PTT ON Narrow N E N E2 N T Wide 4K 2 Adj item DTMF E Adjust PTT ON 16 TONE 1 Adj item TONE Wide 5K 3 0kHz 0 1kHz Deviation Adjust Narrow 1 5kHz Adjust LPF 15kHz Wide 4K 2 4kHz Wide 5K HPF OFF E PTT ON Narrow N E N E2 N T Wide 4K 2 Adj item TONE E Adjust PTT ON 17 BATT 1 Adj item BATT Power meter ANT Encoder After pressing the BATT terminal Detection Adjust DVM BATT knob PTT switch confirm...

Страница 45: ...Adj item SENS DVM Encoder knob fL S E N S 60 N E2 81 E N E Adjustment Adjust fC S E N S 100 N E2 135 E N E fL fc fH S E N S S E N S S E N S fH S E N S 130 N E2 198 E N E 2 BPF PANEL TEST MODE Tracking generator ANT L305 L306 L307 Adjust wave form CH Sig 2 1 spectrum analyzer to figure 1 fL Tra G setting 40dBm BPF CH Sig 1 1 Check wave form to figure 2 fC CH Sig 3 1 Check wave form to figure 1 fH ...

Страница 46: ...125dBm Narrow Narrow 124dBm N E N E2 N T Wide 4K 2 Adj item SQL3 E Adjust Semi wide 125dBm 5 Squelch Tight 1 Adj item SQL9 Adjust to the Adjust Adjust squelch Wide 5K SSG OUT threshold point E Wide 117dBm Narrow Narrow 116dBm N E N E2 N T Wide 4K 1 Adj item SQL9 E SSG OUT Semi wide 117dBm 6 Squelch Panel Test Mode Check Squelch must Check 1 CH Sig 1 1 be opened SQ Level SQL5 SSG OUT W 118dBm N 116...

Страница 47: ...ent TC1 Transmit lock voltage adjustment TC2 Receive lock voltage adjustment L305 L306 Band pass filter waveform adjustment L307 BPF Band pass filter test point CV LV Lock voltage adjustment terminal Fig 2 Adjustment points MIC MIC SP IC14 C13 BPF CN3 ANT VR1 IC12 LV CV L307 L306 L305 TC1 TC2 Battery terminal BPF ANT MIC SP ...

Страница 48: ...KIN4 KIN3 KIN2 KIN1 KIN0 LMP GND CL DI 5M CE C504 C505 C506 C507 C508 C509 C515 C516 CP501 CP502 CP503 D501 D502 D503 D504 D505 D507 IC501 1 16 48 33 17 32 64 49 L501 L502 Q501 B C E Q502 R501 R502 R503 R504 R505 R506 R507 R508 R509 R510 R512 R514 R517 R518 R519 R520 R521 R522 R523 R524 CN501 C513 R511 R513 R516 R515 DISPLAY UNIT X54 3250 10 Component Side View O N f e R s s e r d d A 1 0 5 C I E ...

Страница 49: ...R208 R184 C221 C203 C58 R71 C238 C231 IC16 R70 R204 C232 R213 R212 R123 R182 C206 R144 C183 R143 R152 R154 R153 R232 R231 R171 R168 R169 R175 R233 R223 C253 R31 R60 C190 C236 R181 C212 R167 R206 R207 R148 R147 R198 R172 Q35 1 2 3 6 5 4 R138 F1 C104 IC3 1 4 8 5 R59 R151 R127 D G S R133 R137 R224 C162 R120 R121 C180 L41 CP10 CP2 R122 R118 L43 L40 Q15 C111 1 2 R241 R235 R234 R242 C259 R230 R179 C219 ...

Страница 50: ... C75 C110 C109 C23 C24 C25 R75 R74 C121 Q11 D12 C84 R53 Q18 1 2 3 4 5 Q21 1 2 5 3 4 1 2 5 3 4 1 2 5 3 4 R1 UL L2 R4 R41 Q16 R C T SB A1 5C C113 Q28 R109 R107 R106 R69 R98 R108 CD1 R43 R77 C120 A3 SB A2 A4 R58 R56 R57 R91 R90 R89 R88 D21 L302 Q19 C112 C28 C8 R301 Q14 C108 R44 R116 L38 C153 C126 C125 R87 L37 L36 R95 R39 R29 L19 R28 Q20 L15 R18 R33 L20 R94 R99 C131 R306 B C312 R76 D10 L21 C30 D5 Q4 R...

Страница 51: ... L31 D9 C62 L26 C72 L22 C63 L30 R30 R22 R105 C133 R93 R97 C124 R86 C114 C123 R84 R103 R102 R117 C70 R48 L24 C78 R51 C44 C43 C42 CP1 D1 R8 R7 C1 R257 L14 R14 C36 R21 C37 C4 C5 C48 C49 C32 C142 C119 C122 C143 C144 C163 C164 C166 C167 C170 C171 PTT IC4 1 8 16 9 IC8 1 3 5 4 IC9 1 3 5 4 J1 Q24 Q25 R110 R111 R112 R113 EN1 R119 R124 R128 R129 R132 TAO M MUTE S MUTE A5 TAI A6 R142 R244 C107 C115 C146 C147...

Страница 52: ...A B C D E F G I H J K L M O N P Q S R 1 2 3 4 5 6 7 SCHEMATIC DIAGRAM TK 260G N Note Component marked with a dot are Parts of pattern 1 ...

Страница 53: ...T U V W X Y Z AB AA AC AD AE AF AH AG AI AJ AL AK 1 2 3 4 5 6 7 TK 270G N SCHEMATIC DIAGRAM Note Component marked with a dot are Parts of pattern 1 ...

Страница 54: ...63 64 TK 260G N 270G N TK 260G N 270G N BLOCK DIAGRAM ...

Страница 55: ...4 Q6 17 0dBm 5 1dBm RF 143 05MHz N E2 RF 160 05MHz E N E N T IF1 49 95MHz IF2 450kHz AF 1kHz IC15 AF VR C206 C239 Q2 Q3 C246 C27 C28 C14 AF 1kHz VCO RXLO D10 D5 5 6dBm C12 Power Module 5 0W RF 162 05MHz AF 1kHz RX TX C173 Q30 IC4 Local Level 4 10 6 7 3 5 IC301 2 7 D6 3 2dBm Q4 C30 C303 6 7 RF 143 05MHz N E2 RF 160 05MHz E N E N T KNB 15A CIRCUIT DIAGRAM SPECIFICATIONS Voltage 7 2V 1 2V x 6 Chargin...

Страница 56: ...05 60 Screw Clip assy N46 3016 60 Screw Case N80 2005 41 Screw MIC unit S50 1415 05 Tact switch PTT T07 0290 05 Loudspeaker 1W 8Ω T91 0534 08 Condenser MIC Re marks KMC 17 Speaker microphone Parts No Description New parts Ref No A02 1979 08 Case Front A02 0980 08 Case Rear E11 0453 08 Phone jack E30 3239 08 Curl cord F07 1414 08 Cover K29 5077 08 Lever PTT S70 0444 08 Tact switch PTT T07 0335 05 L...

Страница 57: ...row FM Noise EIA 45dB Wide 43dB Semi wide 40dB Narrow Audio Distortion 5 Frequency Stability 3 0ppm Channel Frequency Spread 28MHz E N E N T 14MHz N E2 General KENWOOD CORPORATION 14 6 Dogenzaka 1 chome Shibuya ku Tokyo 150 8501 Japan KENWOOD SERVICE CORPORATION P O BOX 22745 2201 East Dominguez Street Long Beach CA 90801 5745 U S A KENWOOD ELECTRONICS CANADA INC 6070 Kestrel Road Mississauga Onta...

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