Components Description - Kenwood TK-7180 Service Manual

TK-7180
Display unit (X54-3480-10)
Ref. No. Part Name
IC901 IC
IC902 IC
IC903 IC
Q901,902 Transistor
Q904 Transistor
Q905 Transistor
Q906 Transistor
Q907 Transistor
Q909 Transistor
Q910 Transistor
Q911 Transistor
Q913 Transistor
D901,902 Zener diode
D903 Varistor
D904~906 Diode
D907 LED
D909~920 LED
D921~930 LED
TX-RX unit (X57-6980-10)
Ref. No. Part Name
IC1 IC
IC71,72 IC
IC171 IC
IC172 IC
IC251 IC
IC301 IC
IC302 IC
IC401 IC
IC402 IC
IC403 IC
IC404 IC
IC405 IC
IC406 IC
IC407 IC
IC408 IC
IC409 IC
IC410 IC
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COMPONENTS DESCRIPTION

Description
Voltage regulator/ 5V
Microprocessor
LCD driver
HOOK switch
TX indication LED switch
BUSY indication LED switch
Dimmer switch control
Dimmer switch
Backlight control switch
8C switch
8C switch control
Backlight control
Voltage protection
Current limitter
Surge protection
TX/Busy indication
LCD backlight
KEY backlight
Description
Power module
DC amp for TX APC
RX 1st mixer
FM IF system IC
DC-DC converter
PLL system IC
PLL CP switch
EEPROM
RTC processor
Shift register
Microprocessor
Flash memory
HSD BPF/HSD compalator
DET amp/Data LPF (DB-25)
LSD buffer amp/VCXO bias amp
LSD LPF/Voltage DC-reference
D/A converter
Ref. No. Part Name
IC411 IC
IC412 IC
IC413 IC
IC414 IC
IC415 IC
IC416 IC
IC417 IC
IC801 IC
IC802 IC
IC803 IC
IC804,805 IC
IC807 IC
Q1 Transistor
Q2 Transistor
Q3 Transistor
Q72 FET
Q73 Transistor
Q103 Transistor
Q171,172 Transistor
Q173,174 Transistor
Q175 Transistor
Q176 FET
Q177 Transistor
Q178 Transistor
Q180 Transistor
Q251 Transistor
Q301 Transistor
Q302~304 Transistor
Q305 Transistor
Q306,307 FET
Q308~310 Transistor
Q311 Transistor
Q312 Transistor
Q313 Transistor
Q314 Transistor
Q402 Transistor
Q403 FET
Q405 Transistor
Q406 FET
Q409 Transistor
Description
RF BPF tuning voltage DC amp
Modulation LPF/DET amp
AF switch IC
MIC amp
AQUA-L
Level converter IC (RS-232C)
Audio IC
Voltage detector (CPU reset)
Voltage detector (INT)
Voltage regulator/ 8V
Voltage regulator/ 5V
Voltage regulator/ 5V
TX pre-driver
TX driver
TX gate switch
High/Low power switch
High/Low power switch
Front-end LNA
IF amp
W/N CF switch control
Noise amp
DET mute switch
W/N CF switch control
W/N discrete switch
W/N CF switch control
Ripple filter
PLL f-in doubler amp
PLL LPF
PLL f-in filter switch control
TX/RX VCO
TX/RX VCO switch
VCO buffer amp
Ripple filter
VCO buffer amp
PLL f-in filter switch control
Beat shift switch
AF switch (Voice)
AQUA control switch
AF switch (LSD)
AF mute switch