Kenwood TK-8180 Manuale Utente
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