Components Description - Kenwood TK-2168 Service Manual

TK-2168
TX-RX UNIT (X57-672X-XX)
Ref. No. Use/Function
IC1 IC
IC201 IC
IC401 IC
IC601 IC
IC602 IC
IC604 IC
IC605 IC
IC606 IC
IC801 IC
IC802 IC
IC803 IC
IC804 IC
IC805 IC
IC806 IC
Q1 Transistor
Q2 Transistor
Q3 Transistor
Q4 Transistor
Q5 FET
Q6 FET
Q7 Transistor
Q8 FET
Q9 Transistor
Q10 Transistor
Q11 Transistor
Q12 FET
Q206 FET
Q207 FET
Q208 Transistor
Q209 FET
Q210 Transistor
Q211 FET
Q212 FET
Q213 Transistor
Q400 FET
Q401 Transistor
Q402 Transistor
Q403 FET
Q404 FET
Q601 FET
Q602 FET
Q603 Transistor
Q604 Transistor
Q605 Transistor
Q606 Transistor
Q607 Transistor
Q608 FET
Q801 Transistor
Q802(1/2) FET
Q802(2/2) FET
Q803(1/2) Transistor
Q803(2/2) Transistor
Q804 Transistor
Q805(1/2) Transistor
14

COMPONENTS DESCRIPTION

Operation/Condition
PLL system
Comparator (APC)
FM IF system
Audio processor
AF AMP
VOX AMP
AF Power AMP
AF AMP
Voltage regulator / 5V
Voltage detector / Reset
Voltage detector / INT
EEPROM
Microprocessor
Flip Flop
Level shift
Level shift
Level shift
Tripler
VCO / RX
VCO / TX
Doubler
DC switch / TX VCO
RF Buffer AMP
Ripple filter
RF AMP
DC switch / RX VCO
Pre-drive AMP
TX Drive AMP
APC switch
APC switch
APC switch
TX Final AMP
APC switch
APC switch
W/N switch / TX
W/N switch / RX
IF AMP
Mixer
RF AMP
AF Mute
Beep switch
DC switch / SP Mute
DC switch
MIC AGC
MIC AGC
DC switch / SP Mute
SP Mute switch
5T switch
5TC switch
SAVE switch
AVR / 5C
AVR / 5T
5C switch
LED switch / Green
Ref. No. Use/Function
Q805(2/2) Transistor LED switch / Red
Q806 Transistor AVR / PLLB
Q807 Transistor PLLB switch
Q808 Transistor 5MS switch
Q809 Transistor 5R switch
Q810 FET Beet shift switch
D2 diode Shift switch
Variable
D3 Frequency control / TX VCO
capacitance diode
Variable
D4 Frequency control / RX VCO
capacitance diode
Variable
D5 Frequency control / TX VCO
capacitance diode
Variable
D6 Frequency control / RX VCO
capacitance diode
Variable
D7 Frequency control / TX VCO
capacitance diode
Variable
D8 Frequency control / TX VCO
capacitance diode
Variable
D9 Frequency control / RX VCO
capacitance diode
Variable
D10 Frequency control / RX VCO
capacitance diode
D11 Diode Shift switch
Variable
D12 Modulator
capacitance diode
D13 Diode Current steering
D14 Diode Shift switch
D201 Diode TX/RX RF switch
D203 Zener diode APC protect
D204 Diode ANT switch
D206 Diode ANT switch
D208 Diode ANT switch
D212 Diode ANT switch
D401 Diode TX/RX RF switch
Variable
D402 RF BPF tuning
capacitance diode
Variable
D403 RF BPF tuning
capacitance diode
Variable
D404 RF BPF tuning
capacitance diode
Variable
D405 RF BPF tuning
capacitance diode
D603 Diode Limitter
D604 Diode Detector
D605 Diode Detector
D606 Diode Detector
D801 Diode 5M protector
D802 LED LED / Red
D803 LED LED / Green
D805 Diode Reverse protection
Operation/Condition