Kenwood TK-980 Service Manual
Also see for TK-980: Programming instructionsInstruction manualInstruction manualProgramming instructionsSpecifications
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30TK-980/981SEMOCONDUCTOR DATA / DESCRIPTION OF COMPONENTSDESCRIPTION OF COMPONENTSTX-RX Unit (X57-6520-XX) (A/2)-10 : TK-980 -11 : TK-981Ref. No. Use / Function Operation / ConditionIC1~3 AmplifierIC4 SwitchIC5 D/A convertIC6 AmplifierIC7,8 Shift/store registerIC9 5V AVRIC10 AF amplifierIC11 FM demodulationIC12 5V AVRIC13 DC amplifier Current detect/PCIC14 8V AVRIC15 Power supply logiccircuit controlIC16 9V AVR 8CLIC300 PLL synthesizerIC400 Power module RF power 15WQ1 AF switchQ2 Ripple filterShift Register : BU4094BCFV Terminal function (TX-RX unit (B/2) IC508)Pin No. Port Name Function1 ES ES1 Strobe2 DT DAT Data3 CK Clock4 Q1 LEDR Red LED. H : ON, L : OFF5 Q2 LEDG Green LED. H : ON, L : OFF6 Q3 KEYBLT Key back light. H : ON, L : OFF7 Q4 MMUTE MIC mute. H: Mute, L : Unmute8 VSS GND9 NC10 NC11 Q8 PA2 Public address 2. H : ON, L : OFF12 Q7 BSHIFT Beat shift. H : ON, L : OFF13 Q6 KEY TX power switching. H : TX, L : RX14 Q5 T/R TX/RX switching. H : RX, L : TX15 OE Output enable16 VDC +5V Terminal function (TX-RX unit (A/2) IC8)Pin No. Port Name Function1 STB ES Strobe2 SI DT Data3 CLK CK Clock4 Q1 AM1 Audio mute 1. H : Mute, L : Unmute5 Q2 LOK Link complete.(Programmable active H/L)6 Q3 POR Buffer amplifier and mixer switch.H : Normal, L : Power sw on (an instant)7 Q4 DM Dead mute. H : RX, L : TX8 VSS GND9 QS IC7 data output10 NC11 Q8 SQ External squelch.(Programmable active H/L)12 Q7 CODE2 Option board data 2. H : ON, L : OFF13 Q6 CODE1 Option board data 1. H : ON, L : OFF14 Q5 OPT Option board control.H : ON, L : OFF / Auxiliary B.(Programmable active H/L)15 OE Output16 VDC +5V. Terminal function (TX-RX unit (A/2) IC7)Pin No. Port Name Function1 STB ES Strobe2 SI DT Data3 CLK CK Clock4 Q1 HORN Horn alert. H : ON, L : OFF5 Q2 H/L NC6 Q3 TIMOFF Timed power off. H : Power off7 Q4 CODE3 Option board data 1. H : ON, L : OFF8 VSS GND9 NC10 NC11 Q8 W/N Wide/Narrow switching. (Not used)H : Wide, L : Narrow12 Q7 BUSY Trunked system busy.H : Not busy, L : Busy13 Q6 PA1 Public address 1. H : ON, L : OFF14 Q5 CODE4 Option board data 1. H : ON, L : OFF15 OE Output enable16 VDC +5V |
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