Kenwood TK-7180 Service Manual

Also see for TK-7180: Modification Information Function reference Brochure & specs Specification Instruction manual

TK-718023Ref. No. Part Name DescriptionQ410,411 Transistor MIC AGCQ412 FET AF mute switchQ413,414 FET AF switchQ415 FET AF switch (Voice)Q416,417 FET MIC mute switchQ418 Transistor AF mute control switchQ419 Transistor AF mute switchQ421 Transistor MIC mute switchQ701,702 Transistor Inverter switchQ801 Transistor Voltage regulator/ 8.5VQ802 Transistor SB control switchQ803 Transistor 8T switchQ804 Transistor 8R switchQ805 Transistor 5R switchQ806 Transistor 8T control switchQ807 Transistor SB control switchQ808 Transistor 8R control switchQ809 Transistor 5R control switchQ810 FET SB switchQ811 Transistor CPU reset switchQ812 Transistor Ignition sense control switchD1 Zener diode Voltage protectionD2~4 Diode ANT switchD6~8 Diode RF detectorD11 Variable RF BPF tuningcapacitance diodeD103~106 Variable RF BPF tuningcapacitance diodeD171,172 Diode W/N CF switchCOMPONENTS DESCRIPTIONRef. No. Part Name DescriptionD173 Diode SQ noise amp detectorD174 Diode DET mute switch controlD251 Diode Reverse voltage protectionD301,302 Diode PLL f-in filter switchD304,305 Diode PLL f-in filter switchD306~313 Variable Frequency control for TX/RX VCOcapacitance diodeD314 Variable Modulation control for TX VCOcapacitance diodeD315,316 Diode TX/RX band switchD402~404 Diode RTC battery controlD405,406 Zener diode Voltage protectionD407 Diode DC detectorD408,409 Diode MIC amp AGC detectorD412~414 Diode Surge protectD416 Diode AF mute controlD417,418 Diode IsolatorD419,420 Diode MIC mute controlD421~423 Diode Voltage protectionD701 Zener diode Voltage protectionD702,703 Diode Voltage protectionD704~708 Diode Surge protectD709,710 Zener diode Voltage protectionD711~713 Diode Surge protectD714 Zener diode Voltage protectionD801 Surge absorber Voltage protectionD802 Diode DC reverse connection protectD804,805 Zener diode Voltage protection