Stimmen - 5, Durchschnittliche Bewertung: 4.2 ( )

Hersteller: Kenwood Dateigröße: 4.04 mb Dateiname: Unterrichtssprache:

Port Name I/O Function 48 CSO -Chip select signal 49 A19 -Not used 50-59 A18-A9 -Flash memory address bus 60 ACC -+5V 61 A8 -Flash memory address bus 62 VSS -GND 63-70 A7-A0 -Flash memory address bus 71-75 KIN0-KIN4 I Key scan input 76 PLLUL O PLL unlock detect input unulock: L 77 PLLSTB O PLL strobe output Latch: L 78 SAVE I Battery save output 79-86 D7-D0 -Flash memory data bus 87 KEYAD I MONI LAMP key input 88 BATT I Battery voltage input 89 RFDAT O PLL data output 90 RFCLK O PLL clock output 91 NC -NC 92 RSSQL I Receive signal strength indicator input 93 ANLSQL I Analog squelch level input 94 AVSS -GND 95 TOI I QT/DQT signal input 96 VREF -Reference voltage input 97 AVCC -GND 98 DTMPD O DTME IC power control Power down: H 99 DTMCLK O DTME IC decode clock output 100 DTMDAT I DTME IC decode data input Shift register 1:BU4094BCFV(IC5) n Pin function Pin No. Port I/O Function 4 W/N O Wide/Narrow SW Narrow: 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 on: H 12 REG2 O Base Band IC inter register select 2 13 REG1 O Base Band IC inter register select 1 14 LED1 O GREEN LED LED lights: H Shift register 2:BU4094BCFV(IC6) n Pin function Pin No. Port I/O Function 4 5MC O 5MC control Power on: L 5 5RC O 5R control Power on: L 6 5TC O 5T control Power on: H 7 SPMUTE O AF amp power supply control Power on: H 11 AUX6 O Option board port 6 12 AUX5 O Option board port 5 13 LCDBLK O LCD back light Back light on: L 14 RX O RX/TX VCO SW RX: L TK-260G/270G DESCRIPTION OF COMPONENTS DISPLAY UNIT (X54-3250-10) (TK-270G Only) Ref. No. Use/Function Operation/Condition IC501 IC LCD driver Q501 Transistor Current driver / LCD back light LED AVR Q502 Transistor DC switch D505 Diode Speed up D506 LED LCD back light D507 Diode Voltage reference D508~510 LED LED /Key pad back light D511 LED LCD back light D512~516 LED LED /Key pad back light TX-RX UNIT (X57-587X-XX) Ref. No. Use/Function Operation/Condition IC1 IC RF Power Module IC2 IC PLL system IC3 IC Comparator (APC) IC4 IC FM IF system IC5,6 IC Shift register / Output expander IC7 IC Voltage regulator / 5V IC8 IC Voltage detector / Reset IC9 IC Voltage detector / INT IC10 IC EEPROM IC11 IC AF Power amplifier IC12 IC Flash memory IC13 IC Microprocessor IC14 IC Audio processor IC15(1/2) IC 2Tone amplifier IC15(2/2) IC AF Pre amplifier IC16(1/2) IC Bias buffer IC16(2/2) IC AF Buffer amplifier IC17 IC D/A converter (TX AF adjustment) IC18 IC DTMF decoder IC19 IC Active filter / For LSD in IC301 IC VCO 1/2 divider Q1 Transistor PLL IC fin amplifier Q2 Transistor VCO oscillation (TX) Q3 Transistor RF Buffer amplifier Q4 Transistor RF amplifier Q6 Transistor RF amplifier / TX driver Q7 FET DC switch Q8,Q9 Transistor DC switch Q10 FET VCO oscillation (RX) Q11 Transistor Ripple filter Q12 Transistor Tripler Q13 Transistor DC switch Q14 Transistor 2nd IF W/N switch sets to on when Narrow Q15 Transistor DC switch Q16 Transistor DC switch / 5R Q17 Transistor 2nd IF W/N switch sets to on when Wide Q18 Transistor DC switch / 5T, Save Q19 FET Mixer Q20,Q21 Transistor DC switch / 5T, Save Q22 Transistor IF amplifier Ref. No. Use/Function Operation/Condition Q23 Transistor DC switch / W/N audio amplitude adjust Q24 Transistor 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 capacitance diode Frequency control D3 Diode ANT switch D4 Variable capacitance diode Frequency control D5 Diode TX/RX switch D6 Variable capacitance diode TX modulation D7 Diode ANT switch D8 Zener Diode Overload protection D9 Variable capacitance diode Frequency control D10 Diode ANT switch D11 Variable capacitance diode Frequency control D12 Diode Current steering D13,14 Diode RF switch (2nd IF wide/narrow) D15 Diode Reverse protection D17 Diode Model check D18 LED LED/ Red, Green D19 Diode Model check D21 Diode Voltage drop D22 Diode Reverse protection D23 Diode Voltage clamp D302,303,305 Variable capacitance diode Rf BPF turnig TK-260G/270G PARTS LIST * New Parts. indicates safety critical components. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. ! L: Scandinavia Y: PX (Far East, Hawaii) Y: AAFES (Europe) K: USA T: England X: Australia P: Canada E: Europe M: Other Areas Teile ohne Parts No. werden nicht geliefert. TK-260G/270G Ref. No. Address New parts Parts No. Description Destination TK-260G/270G 1 1C * A02-2385-23 CABINET ASSY 270G 2 1A * A02-2391-23 CABINET ASSY 260G 3 3B,3D * A82-0036-02 REAR PANEL 4 2E B09-0351-03 CAP(SP/MIC) 5 2D B11-1220-03 ILLUMINATION GUIDE 6 2D * B38-0820-05 LCD 270G 7 2F B46-0470-00 WARRANTY CARD K 8 2F * B62-1113-00 INSTRUCTION MAN...

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