Components Description - Kenwood TK-8180 Series Service Manual

Switch unit (X41-3682-70)
: TK-8189 model only
Ref. No. Part Name
Q1 Transistor
Q2 FET
Q3 FET
D1~6 LED
D7 Zener diode
Display unit (X54-348X-XX)
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
D905 Diode
D907 LED
D909~920 LED
D921~930 LED
D931~933 Varistor
TX-RX unit (X57-6992-71)
Ref. No. Part Name
IC1 IC
IC71,72 IC
IC171 IC
IC172 IC
IC251 IC
IC301 IC

COMPONENTS DESCRIPTION

Description
Voltage regulator/ 8.4V
BLC switch
BLC switch control
KEY backlight
Voltage protection
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
Surge protection
Description
Power module
DC amp for TX APC
RX 1st mixer
FM IF system IC
DC-DC converter
PLL system IC
TK-8180/8189
Ref. No. Part Name
IC302 IC PLL CP switch
IC401 IC EEPROM
IC402 IC RTC processor
IC403 IC Shift register
IC404 IC Microprocessor
IC405 IC Flash memory
IC406 IC HSD BPF/HSD compalator
IC407 IC DET amp/Data LPF (DB-25)
IC408 IC LSD buffer amp/VCXO bias amp
IC409 IC
IC410 IC D/A converter
IC411 IC RF BPF tuning voltage DC amp
IC412 IC Modulation LPF/DET amp
IC413 IC AF switch IC
IC414 IC MIC amp
IC415 IC AQUA-L
IC416 IC Level converter IC (RS-232C)
IC417 IC Audio IC
IC801 IC Voltage detector (CPU Reset)
IC802 IC Voltage detector (INT)
IC803 IC Voltage regulator/ 8V
IC804,805 IC
IC807 IC Voltage regulator/ 5V
Q1 Transistor
Q2 Transistor TX driver
Q3 Transistor
Q70 Transistor
Q72 FET High/Low power switch
Q103 Transistor Front-end LNA
Q171,172 Transistor IF amp
Q173,174 Transistor W/N CF switch control
Q175 Transistor Noise Amp
Q176 FET DET mute switch
Q177 Transistor
Q178 Transistor
Q179 Transistor
Q251 Transistor
Q301 Transistor
Q302,303 Transistor PLL LPF
Q306,307 FET TX/RX VCO
Description
LSD LPF/Voltage DC-reference
Voltage regulator/ 5V
TX pre-driver
TX gate switch
High/Low power switch
W/N CF switch control
W/N discrete switch
W/N CF switch control
Ripple filter
PLL f-in doubler amp
25