TK-8100
34
COMPONENTS DESCRIPTION /
!
Ref. No.
Parts name
Description
Q251
Transistor
Buffer amplifier / RX audio
Q252,253
FET
AF mute / Active while AFM is H
Q254
Digital transistor
AF mute / Active while SPM is H
Q255
Transistor
AF mute / Active while AMPSW is H
Q301
Transistor
SQL amplifier / Noise amplifier
Q302
Transistor
Buffer amplifier / 16.8MHz 3rd over tone
Q351
Transistor
IF amplifier
Q352
FET
Mixer
Q353
FET
RF amplifier / LNA
Q402,403
Transistor
Charge pump
Q404
Transistor
RF amplifier / PLL F in
Q405
FET
RX VCO
Q406
FET
TX VCO
Q407
FET
T/R switch
Q408
Transistor
T/R switch
Q410
Transistor
Buffer amplifier / Output of VCO
Q411
Transistor
RF amplifier / Output of VCO
Q440
Transistor
Ripple filter
Q500
Transistor
RF switch (TX/RX)
Q501,502
Transistor
RF amplifier
D1
Diode
Surge absorption / CM
D2
Diode
Surge absorption / HOOK
D3
Diode
Surge absorption / PTT
D4~11
Diode
Surge absorption / FNC1~8
D31
Diode
Reverse connection protection
D32
Poly switch
Current protection
D61
Diode
Over voltage detection
D201
Diode
OR gate / MIC mute, AGC
D202
Diode
AGC
D251
Diode
Limiter
D301
Diode
Detection
D302,303
Diode
IF switch (Wide/Narrow)
D351~355
Varicap
RF BPF tuning
D401
Diode
Ripple filter
D402
Diode
Voltage dropped
D403,404
Varicap
RX VCO
D405,406
Varicap
TX VCO
D407
Varicap
Modulation
D408
Diode
Ripple filter
D409
Diode
RF switch (TX/RX)
D502
Diode
Temperature compensation
D503
Diode
Voltage protection
D602
Diode
ANT switch
D604,605
Diode
ANT switch
D606,607
Diode
APC voltage detect
D608,609
Diode
Temperature compensation
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