Kenwood TK-863G Service Manual

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26TK-863G DESCRIPTION OF COMPONENTSRef. No. Use/Function Operation/ConditionQ17 AF mute Active while AF mute is activeQ18 DC switch 8R, active while RXQ19,20 DC switch SB switch, active when power upQ21 DC switch Active while PS voltage is morethan 20VQ22 RF amplifierQ23 DC switch SB switch, active hwile power onQ24 AF mute Active while power switch is offQ25 RF amplifier PredriveQ26 Inverter Active while power switch is lowQ27 RF amplifier DriveQ28 DC switch 8T, active on TXQ29 DC switch 8T cont, active on TXQ31 APC controllerQ32 APC controller DBQ33 APC controller Power protectionQ34 L.N.A.Q35 W/N switch Active on narrowQ36 DC switch Power protectionQ37 AF mute switch Inactive on muteQ38 DC switch 5SQ501 Clock switch shift Clock shift is active whileBSHIFT is HQ502 AF mute Active while MUTE is HRef. No. Use/Function Operation/ConditionQ503 Inverter Active while PA2 is H,public address is activeQ504 LED switch (Red) Active while LED0 is H,TX is activeQ505,506 Key backlight switch Active while MBL is HQ508 LED switch (Green) Active while LED1 is H,RX is activeQ509 MIC mute Active while MM is H and MM2 is HPLL/VCO (X58-4670-17)Ref. No. Use/Function Operation/ConditionD101 RX VCOD102 TX VCOD103 RX VCOD104 TX VCOD105 ModulationQ101 Oscillator RXQ102 Inverter Active while ST is HQ103 Oscillator TXQ104 TX/RX switch (TX) Active while ST is HQ105 TX/RX switch (RX) Active while Q102 is offQ106 Buffer amplifier