Kenwood TK-7102H Manual Do Utilizador
TK-7102H
20
Display Unit (X54-3460-20)
Ref. No.
Parts name
Description
IC1
IC
Shift register for LED & MICBL control
Q4
Transistor
Busy light switch
Q9,10
Transistor
Key backlit switch
D1~4
LED
Key backlit
D5
LED
Monitor key light
D6
LED
Programmable key light
D7~10
LED
Channel key light
D11
LED
Busy
D12
LED
Transmit
D13
Diode
Surge protection
TX-RX Unit (X57-6700-XX)
Ref. No.
Parts name
Description
IC31
IC
Voltage regulator (8C)
IC32
IC
Voltage regulator (5C)
IC33
IC
Voltage regulator (5M)
IC34
IC
Voltage detector reset
IC35
IC
Voltage detector int
IC66
IC
EEPROM
IC101
IC
CPU
IC161
IC
Digital potentiometer
IC201
IC
MIC amplifier / IDC
IC202
IC
MIC amplifier / Splatter filter
IC203
IC
Buffer amplifier / SUM amplifier
/ DC amplifier / 1/2 Vcc
IC251
IC
Audio filter
IC252
IC
Audio amplifier
IC301
IC
FM demodulation
IC401
IC
PLL synthesizer
IC402
IC
Divider (Hetero)
IC501
IC
APC controller
Q1
FET
TX AF
Q31,32
Transistor
DC switch (SB) / Active when power is on
Q33,34
Transistor
DC switch (8R) / Active while RX
Q35,36
Transistor
DC switch (8T) / Active while TX
Q61
Transistor
Over voltage detection / Active when
PS voltage is more than 18V
Q71
Transistor
Ignition / Ignition sens
Q86,87
Transistor
Beat shift / Active while beat shift is on
Q201
Transistor
AF amplifier / MIC mute / Emergency MIC mute
Q202
FET
Emergency MIC mute / Active when
MICEM is H
Q251
Transistor
Buffer amplifier / RX audio
Q252,253
FET
AF mute / Active while AFM is H
Ref. No.
Parts name
Description
Q254
Digital transistor
AF mute / Active while SPM is H
Q255
Transistor
AF mute / Active while AMPSW is H
Q301
Transistor
Noise amplifier / SQL amplifier
Q302
Transistor
Buffer amplifier / 16.8MHz 3rd over tone
Q351
Transistor
IF amplifier
Q352
FET
Mixer
Q353
FET
RF amplifier / LNA
Q354
Transistor
RF BPF
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
Lipple filter
Q501,502
Transistor
RF amplifier / Drive stage
Q503
FET
RF amplifier / Drive amplifier
Q504
FET
RF amplifier / Final 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)
D351~354
Varicap
RF BPF tuning
D401
Diode
Lipple filter
D402
Diode
Voltage dropped
D403,404
Varicap
RX VCO
D405,406
Varicap
TX VCO
D407
Varicap
Modulation
D408
Diode
Lipple filter
D409
Diode
RF switch (TX/RX)
D501,502
Diode
Temperature compensation
D503
Diode
Voltage protection
D602~605
Diode
ANT switch
D606,607
Diode
APC voltage detect
D608
Diode
Temperature compensation
COMPONENTS DESCRIPTION