Description Of Components - Kenwood TKR-850 Service Manual

TX-RX Unit (X57-6270-XX)
Ref No. Part name
IC1,2 IC
IC3~5 IC
IC6 IC
IC7 IC
IC9 IC
IC10,11 IC
IC600 IC
IC601 IC
IC602 IC
IC603 IC
IC604 MPU
IC605 IC
IC606 IC
IC607,608 IC
IC609 IC
IC610,611 IC
IC612 IC
IC613 IC
IC614 IC
IC615 IC
IC616,617 IC
IC618 MPU
IC619 IC
IC620 IC
IC621 IC
IC622 IC
IC623 IC
IC624~628 IC
IC629 IC
IC630 IC
Q1~3 Transistor
Q4 Transistor
Q5,6 Transistor
Q7 Transistor
Q8,9 Transistor
Q10 Transistor
Q11 Transistor
Q12~15 Transistor
Q16~19 Transistor
Q20 Transistor
Q23~25 Transistor
Q26 Transistor
Q600 FET

DESCRIPTION OF COMPONENTS

Description
Buffer amplifier
Voltage regulator
D/A converter
Shift register
FM IF system
Voltage regulator
EEPROM
Voltage detector
Shift register
Bus transceiver
CPU
Multiplexer
Bus transceiver
AF amplifier
Flash ROM
AF amplifier
Inverter
Counter
CODEC
D/A converter
AF amplifier
DSP
AF amplifier
RS-232C transceiver
NAND gate
Multiplexer
Shift register
Voltage regulator
Audio amplifier
Voltage regulator
RF amplifier
Wide/Narrow switch
DC switch
Noise amplifier
RF amplifier
Current control
RF amplifier
Ripple filter
DC switch
Inverter
DC switch
Wide/Narrow switch
DC switch
Ref No. Part name
Q601 Transistor
Q602 FET
Q603 Transistor
Q604 FET
Q605 Transistor
Q606 Transistor
Q609 Transistor
Q610 FET
Q611 Transistor
D1~4 Diode
D5 Diode
D7 Diode
D8 Diode
D9 Diode
D11 Zener diode
D12 Zener diode
D13 Diode
D600 Diode
D601 Diode
D606~625 Diode
D626 Varistor
D627,628 Diode
D629 Diode
RX PLL/VCO Unit (X58-4800-XX)
Ref No. Part name
IC300 IC
Q300,301 Transistor
Q302 Transistor
Q350,351 FET
Q352~354 Transistor
Q355 Transistor
D350~353 Varicap
TX PLL/VCO Unit (X58-4810-XX)
Ref No. Part name
IC300 IC
Q300,301 Transistor
Q302 Transistor
Q350,351 FET
Q355 Transistor
D350~353 Varicap
D354,355 Varicap
TKR-850
Description
DC switch
DC switch
Inverter
DC switch
Inverter
AF mute switch
DC switch
DC switch
DC switch
Wide/Narrow switch
Noise detection
DC switch
TX switch
Surge protector
Surge protector
Voltage reference
Noise detection
Surge protector
Voltage reduction
Surge protector
Current protector
reverse current protector
Surge protector
Description
PLL
Active filter
Buffer amplifier
VCO OSC
DC switch
Buffer amplifier
Frequency control
Description
PLL
Active filter
Buffer amplifier
VCO OSC
Buffer amplifier
Frequency control
Modulation
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