Kenwood TK-8180 - Manual (Page 23)

TK-8180
23
Ref. No. Part Name Description
Q413,414 FET AF Switch
Q415 FET AF Switch (Voice)
Q416,417 FET MIC mute switch
Q418 Transistor AF mute control switch
Q419 Transistor AF mute switch
Q600 Transistor MIC mute switch
Q701,702 Transistor Inverter switch
Q801 Transistor Voltage regulator/ 8.5V
Q802 Transistor SB control switch
Q803 Transistor 8T switch
Q804 Transistor 8R switch
Q805 Transistor 5R switch
Q806 Transistor 8T control switch
Q807 Transistor SB control switch
Q808 Transistor 8R control switch
Q809 Transistor 5R control switch
Q810 FET SB switch
Q811 Transistor Ignition sense control switch
Q812 Transistor CPU reset switch
D1 Zener diode Voltage protection
D2,3 Diode ANT switch
D6~8 Diode RF detector
D103~110 Variable RF BPF tuning
capacitance diode
D111 Diode ANT switch
D171,172 Diode W/N CF switch
D173 Diode SQ noise-amp detector
D174 Diode DET mute switch control
COMPONENTS DESCRIPTION
Ref. No. Part Name Description
D251 Diode Reverse voltage protection
D308,309 Variable Frequency control for TX/RX VCO
capacitance diode
D311 Variable Frequency control for TX/RX VCO
capacitance diode
D313 Variable Frequency control for TX/RX VCO
capacitance diode
D314 Variable Modulation control for TX VCO
capacitance diode
D315,316 Diode TX/RX band switch
D402~404 Diode RTC battery control
D405,406 Zener diode Voltage protection
D407 Diode DC detector
D408,409 Diode MIC-amp AGC detector
D412~414 Diode Surge protect
D416 Diode AF mute control
D417,418 Diode Isolator
D421~423 Diode Voltage protection
D600,601 Diode MIC mute control
D701 Zener diode Voltage protection
D702,703 Diode Voltage protection
D704~708 Diode Surge protect
D709,710 Zener diode Voltage protection
D711~713 Diode Surge protect
D714 Zener diode Voltage protection
D801 Surge absorber Voltage protection
D802 Diode DC reverse connection protect
D804,805 Zener diode Voltage protection