TK-8302/8302H
16
Display unit (X54-3670-20)
Ref. No. Part Name Description
IC1 IC LED driver
Q1,2 Transistor TX/BUSY indication LED switch
Q3,4 Transistor KEY backlight control switch
Q5,9 Transistor LED dimmer control switch
Q6 Transistor Indication LED switch
Q7,8 Transistor TX/BUSY indication LED switch
D1~5 LED KEY backlight
D20 Diode Voltage protection
D22 LED Indication
D23 LED TX/BUSY indication
D33 Zener diode Surge protection
D37 LED LED display
TX-RX unit (X57-7680-XX)
Ref. No. Part Name Description
IC1 IC PLL IC
IC2 IC Assist fi lter
IC300 IC DC AMP (APC)
IC301 IC Power module
IC500 IC FM IC
IC501 IC RF BPF tuning voltage DC AMP
IC700 IC MIC/MOD AMP
IC701 IC BASEBAND IC
IC702 IC MCU
IC703 IC EEPROM
IC704 IC Voltage regulator (9V)
IC705 IC AF AMP
IC706,710 IC Voltage regulator (3.3V)
IC707 IC Voltage regulator (5V)
IC708 IC Voltage detection (INT)
IC709 IC Voltage detection (MCU reset)
Q3 Transistor PLL Fin AMP
Q4 FET RX VCO
Q5 FET TX/RX VCO switch
Q6 FET TX VCO
Q7 Transistor TX/RX VCO switch
Q8 Transistor Ripple fi lter
Q9,10 Transistor VCO buffer AMP
Q11,12 FET Assist fi lter control switch
Q300 Transistor TX drive AMP
Q500 Transistor RX 2nd local doubler AMP
Q501 Transistor Discriminator control switch
Q502 Transistor IF AMP
Q504 FET RX 1st mixer
Q506 FET Front-end LNA
Q507 Transistor Discriminator control switch
Ref. No. Part Name Description
Q510 Transistor Squelch input control switch
Q511 Transistor Squelch input switch
Q701 FET MIC mute switch
Q702 Transistor MIC mute switch
Q703 Transistor DET AMP LPF (D-SUB)
Q705 FET Scrambler switch
Q707 Transistor Ignition sense control switch
Q710 Transistor Over voltage detect switch
Q711 Transistor 9R control switch
Q712 Transistor 9T control switch
Q713 Transistor 9R switch
Q714 Transistor 9T switch
Q715,723 FET SP mute switch
Q717 FET 5C control switch
Q718 FET 3.3C control switch
Q719 Transistor SB control switch
Q720 FET SB switch
Q721 Transistor AF AMP switch
Q722 Transistor Over voltage detect switch
Q724 FET Horn alert switch
Q725 Transistor Horn alert control switch
Q728 Transistor RS-232C RXD control
Q729 Transistor PLL IC clock AMP
Q730 Transistor BASEBAND IC clock AMP
Q731,732 Transistor MCU clock AMP
D1 Diode PLL unlock detection
D4~11
Variable capaci-
tance diode
Frequency control (TX/RX VCO)
D12
Variable capaci-
tance diode
Modulation control (TX VCO)
D300 Zener diode Voltage protection
D301 Diode TX power control
D302~305 Diode ANT switch
D310,311 Zener diode Voltage protection
D312 Diode Reverse power rectifi er
D313,314 Diode Power rectifi er
D500,501 Diode W/N CF switch
D505,506,
D508~510
Variable capaci-
tance diode
RF BPF tuning
D511
Variable capaci-
tance diode
Front-end notch fi lter
D700~710 Diode Surge protection
D711,712 Diode MIC AMP AGC detection
D715 Zener diode Voltage protection
D717 Surge absorber Voltage protection
D718 Diode Voltage protection
D719,720 Diode TX/RX band switch
COMPONENTS DESCRIPTION
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