Kenwood TK-8102 Service Manual

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

Contents

16TK-8102 DESCRIPTION OF COMPONENTSDisplay Unit (X54-3340-20)SYMBOL PARTS NAME DISCRIPTIOND1~4 LED KEY BACKLITD5 LED MONITOR KEY LIGHTD6 LED PROGRAMMABLE KEY LIGHTD7~10 LED CHANNEL KEY LIGHTD11 LED BUSYD12 LED TRANSMITQ1 TRANSISTOR MONITOR KEY LIGHT SWQ2,3 TRANSISTOR CHANNEL KEY LIGHT SWQ4 TRANSISTOR BUSY LIGHT SWQ5 TRANSISTOR PROGRAMMABLE KEY LIGHT SWQ6,7 TRANSISTOR CHANNEL KEY LIGHT SWQ8 TRANSISTOR TRANSMIT LIGHT SWQ9,10 TRANSISTOR KEY BACKLIT SWTX-RX Unit (X57-6300-XX)Ref. No. Use/Function Operation/ConditionD1 DIODE SURGE ABSORPTION /PTTD2 DIODE SURGE ABSORPTION /HOOKD3 DIODE SURGE ABSORPTION /MICBLD4 DIODE SURGE ABSORPTION /CMD6 DIODE DC SWITCHD7 DIODE VOTAGE DROPPEDD9 VARICAP RX VCOD10 VARICAP TX VCOD11 VARICAP RX VCOD12 VARICAP TX VCOD13 DIODE IF SWITCH (WIDE/NARROW)D14 VARICAP MODULATIOND15 DIODE IF SWITCH (WIDE/NARROW)D16 DIODE LIPPLE FILTERD18 DIODE DETECTIOND19 DIODE RF SWITCH(TX/RX)D21 VARICAP RF BPF TUNINGD22 VARICAP RF BPF TUNINGD23 DIODE TEMPERATURE COMPENSATIOND24 DIODE LIMITTERD25 VARICAP RF BPF TUNINGD26 VARICAP RF BPF TUNINGD27 DIODE TEMPERATURE COMPENSATIOND28 VARICAP RF BPF TUNINGD30 DIODE ANT SWD31 DIODE ANT SWRef. No. Use/Function Operation/ConditionD32 DIODE ANT SWD34 DIODE APC VOLTAGE DETECTD36 DIODE APC VOLTAGE DETECTD38 DIODE REVERSE CONNECT PROTECTIOND39 DIODE OVER VOLTAGE DETECTIOND41 POLY SW CURRENT PROTECTIOND43 DIODE OR GATE /Mic Mute, AGCD44 DIODE AGCQ2 FET MIC MUTE/Active while MICEM is HQ3 TRANSISTOR RF AMP /PLL FinQ4 TRANSISTOR CHARGE PUMPQ5 TRANSISTOR CHARGE PUMPQ6 TRANSISTOR BUFFER AMP/16.8MHz 3rd over toneQ7 FET T/R SWQ10 FET RX VCOQ11 FET TX VCOQ12 TRANSISTOR T/R SWQ13 TRANSISTOR BEAT SHIFT/Active while Beat shift is onQ14 TRANSISTOR LIPPLE FILTERQ15 TRANSISTOR BUFFER AMP /Output of VCOQ16 TRANSISTOR IGNITION /Ignition Sens.Q18 TRANSISTOR NOISE AMPQ19 TRANSISTOR IF AMPQ20 TRANSISTOR RF AMP /Output of VCOQ21 FET MIXERQ22 FET AF MUTE/Active while Mute1 is HQ23 TRANSISTOR RF AMP /Drive stageQ24 TRANSISTOR BUFFER AMP /RX AudioQ25 TRANSISTOR RF AMP /Drive stageQ26 FET RF AMP /LNAQ27 TRANSISTOR APC CONTROLQ29 TRANSISTOR DC SWITCH(8R)/Active while RXQ30 TRANSISTOR DC SWITCH(8T)/Active while TXQ31 TRANSISTOR DC SWITCH(8R)/Active while RXQ32 TRANSISTOR AF MUTE/Active while Mute2 is HQ33 TRANSISTOR DC SWITCH(8T)/Active while TX