Components Description - Kenwood TK-7302 Service Manual

TK-7302/7302 V /7302H/7302H
( )
Display unit (X54-3670-20)
Ref. No. Part Name
IC1 IC
Q1,2 Transistor
Q3,4 Transistor
Q5,9 Transistor
Q6 Transistor
Q7,8 Transistor
D1~5 LED
D20 Diode
D22 LED
D23 LED
D33 Zener diode
D37 LED
TX-RX unit (X57-7680-XX)
Ref. No. Part Name
IC1 IC
IC2 IC
IC300 IC
IC301 IC
IC500 IC
IC501 IC
IC700 IC
IC701 IC
IC702 IC
IC703 IC
IC704 IC
IC705 IC
IC706,710 IC
IC707 IC
IC708 IC
IC709 IC
Q3 Transistor
Q4 FET
Q5 FET
Q6 FET
Q7 Transistor
Q8 Transistor
Q9,10 Transistor
Q11,12 FET
Q300 Transistor
Q500 Transistor
Q501 Transistor
Q502 Transistor
Q504 FET
Q506 FET
Q507 Transistor
16
V
( )
CONPONENTS DESCRIPTION
Description
LED driver
TX/BUSY indication LED switch
KEY backlight control switch
LED dimmer control switch
Indication LED switch
TX/BUSY indication LED switch
KEY backlight
Voltage protection
Indication
TX/BUSY indication
Surge protection
LED display
Description
PLL IC
Assist fi lter
DC AMP (APC)
Power module
FM IC
RF BPF tuning voltage DC AMP
MIC/MOD AMP
BASEBAND IC
MCU
EEPROM
Voltage regulator (9V)
AF AMP
Voltage regulator (3.3V)
Voltage regulator (5V)
Voltage detection (INT)
Voltage detection (MCU reset)
PLL Fin AMP
RX VCO
TX/RX VCO switch
TX VCO
TX/RX VCO switch
Ripple fi lter
VCO buffer AMP
Assist fi lter control switch
TX drive AMP
RX 2nd local doubler AMP
Discriminator control switch
IF AMP
RX 1st mixer
Front-end LNA
Discriminator control switch
Ref. No. Part Name
Q510 Transistor
Q511 Transistor
Q701 FET
Q702 Transistor
Q703 Transistor
Q705 FET
Q707 Transistor
Q710 Transistor
Q711 Transistor
Q712 Transistor
Q713 Transistor
Q714 Transistor
Q715,723 FET
Q717 FET
Q718 FET
Q719 Transistor
Q720 FET
Q721 Transistor
Q722 Transistor
Q724 FET
Q725 Transistor
Q728 Transistor
Q729 Transistor
Q730 Transistor
Q731,732 Transistor
D1 Diode
Variable capaci-
D4,5,13,14
tance diode
Variable capaci-
D6~11
tance diode
Variable capaci-
D12
tance diode
D15~17 Diode
D300 Zener diode
D301 Diode
D302~305 Diode
D310,311 Zener diode
D312 Diode
D313,314 Diode
D500,501 Diode
D506, Variable capaci-
D508~510 tance diode
D700~710 Diode
D711,712 Diode
D715 Zener diode
D717 Surge absorber
D718 Diode
D719,720 Diode
Description
Squelch input control switch
Squelch input switch
MIC mute switch
MIC mute switch
DET AMP LPF (D-SUB)
Scrambler switch
Ignition sense control switch
Over voltage detect switch
9R control switch
9T control switch
9R switch
9T switch
SP mute switch
5C control switch
3.3C control switch
SB control switch
SB switch
AF AMP switch
Over voltage detect switch
Horn alert switch
Horn alert control switch
RS-232C RXD control
PLL IC clock AMP
BASEBAND IC clock AMP
MCU clock AMP
PLL unlock detection
Frequency control (TX/RX VCO)
Frequency control (TX/RX VCO)
Modulation control (TX VCO)
TX/RX Fin fi lter switch
Voltage protection
TX power control
ANT switch
Voltage protection
Reverse power rectifi er
Power rectifi er
W/N CF switch
RF BPF tuning
Surge protection
MIC AMP AGC detection
Voltage protection
Voltage protection
Voltage protection
TX/RX band switch