Kenwood TK-8102 Service Manual

Also see for TK-8102: Service manual Service manual Service manual

TK-810222Display Unit (X54-3460-20)Ref. No. Parts name DescriptionIC1 IC Shift register for LED & MICBL controlQ4 Transistor Busy light switchQ9,10 Transistor Key backlit switchD1~4 LED Key backlitD5 LED Monitor key lightD6 LED Programmable key lightD7~10 LED Channel key lightD11 LED BusyD12 LED TransmitD13 Diode Surge protectionTX-RX Unit (X57-6920-XX)Ref. No. Parts name DescriptionIC31 IC Voltage regulator (8C)IC32 IC Voltage regulator (5C)IC33 IC Voltage regulator (5M)IC34 IC Voltage detector resetIC35 IC Voltage detector intIC66 IC EEPROMIC101 IC CPUIC161 IC Digital potentiometerIC201 IC MIC amplifier / IDCIC202 IC MIC amplifier / Splatter filterIC203 IC Buffer amplifier / SUM amplifier /DC amplifier / 1/2 VccIC251 IC Audio filterIC252 IC Audio amplifierIC301 IC FM demodulationIC401 IC PLL synthesizerIC501 IC APC controllerIC502 IC Power moduleQ1 Transistor TX AFQ31 Transistor DC switch (SB) / Active when power is onQ32 FET DC switch (SB) / Active when power is onQ33,34 Transistor DC switch (8R) / Active while RXQ35,36 Transistor DC switch (8T) / Active while TXQ61 Transistor Over voltage detection / Active whenPS voltage is more than18VQ71 Transistor Ignition / Ignition sensQ86,87 Transistor Beat shift / Active while beat shift is onQ201 Transistor AF amplifier / MIC mute / Emergency MIC muteQ202 FET Emergency MIC mute / Active whenMICEM is HQ251 Transistor Buffer amplifier / RX audioRef. No. Parts name DescriptionQ252,253 FET AF mute / Active while AFM is HQ254 Digital transistor AF mute / Active while SPM is HQ255 Transistor AF mute / Active while AMPSW is HQ301 Transistor SQL amplifier / Noie amplifierQ302 Transistor Buffer amplifier / 16.8MHz 3rd over toneQ351 Transistor IF amplifierQ352 FET MixerQ353 FET RF amplifier / LNAQ402,403 Transistor Charge pumpQ404 Transistor RF amplifier / PLL F inQ405 FET RX VCOQ406 FET TX VCOQ407 FET T/R SWQ408 Transistor T/R SWQ410 Transistor Buffer amplifier / Output of VCOQ411 Transistor RF amplifier / Output of VCOQ440 Transistor Lipple filterQ500 Transistor RF switch (TX/RX)Q501,502 Transistor RF amplifierD1 Diode Surge absorption / CMD2 Diode Surge absorption / HOOKD3 Diode Surge absorption / PTTD4~11 Diode Surge absorption / FNC1~8D31 Diode Reverse connection protectionD32 Poly switch Current protectionD61 Diode Over voltage detectionD201 Diode OR gate / MIC mute, AGCD202 Diode AGCD251 Diode LimiterD301 Diode DetectionD302,303 Diode IF switch (Wide/Narrow)D351~355 Varicap RF BPF tuningD401 Diode Lipple filterD402 Diode Voltage droppedD403,404 Varicap RX VCOD405,406 Varicap TX VCOD407 Varicap ModulationD408 Diode Lipple filterD409 Diode RF switch (TX/RX)D502 Diode Temperature compensationD503 Diode Voltage protectionVD602 Diode ANT switchD604,605 Diode ANT switchD606,607 Diode APC voltage detectVD608,609 Diode Temperature compensationCOMPONENTS DESCRIPTION