Kenwood TKR-840 Service Manual

Also see for TKR-840: Brochure & specs Instruction manual

SEMICONDUCTOR DATAPin No. Port name VO Function36 TOV 0 Take over control output37 SPS 0 Local speaker output select38 RAS 0 RA output select39 TOS 0 TO output select40 HSDS 0 High speed data output control41 HMT 0 High speed data mute control42 INC - Not used43 MDS 0 Modulation select44 MIS 0 Mic select45~50 IAD15~10 1/0 DSP IDMA address/data bus51-59 IAD9~1 1 /0 DSP IDMA address/data bus60 Vee - +5V61 IADO 1 /0 DSP IDMA address/data bus62 Vss - GND63-70 A7~0 I Address bus71 D7 1 /0 Data bus72-78 D6~0 1 /0 Data bus79 MUTE 0 Local speaker mute control output80-86 1 /07~1 1/0 Auxiliary input/output 7~187-90 AN7~4 - Not used91 EVR 0 RX D/A converter IC data strobe output92 ESR 0 RX shift register data strobe output93 AN1 - Not used94 Avss - Not used95 ANO - Not used96 Vref - Not used97 Avcc - Not used98 EVC 0 Control D/A converter IC data strobe output99 ESC 0 Control shift register data strobe output100 OEC 0 Control shift register data output enableIC30 DSP (ADSP2185BST133)■ Pin functionPin No. Port name VO Function1,2 IAD3,4 1 /0 Internal DMA port/ Sub CPU3 GND - GND4~11 IAD5~12 1 /0 Internal DMA port I Sub CPU12 GND - GND13 CLKIN I Clock input/ 16.515072MHz14 XTAL I Clock input/ 16.515072MHz15 Vdd - Vdd16 CLKOUT 0 DSP clock output I 33.030144MHz17 GND - GND18 Vdd - Vdd19 WR 0 Memory Write Enable/ NC20 RD 0 Memory Write Enable/ NC21 BMS 0 Byte memory select/ pull up22 DMS 0 Data memory select/ NC23 PMS 0 Program memory select/NC24 IOMS 0 Memory select/NC25 CMS 0 Combined memory select/ NC26 PF4 0 Prog. 1 /0/ CODEC reset27 PF5 I Prag. 1 /0/ Main CPU/ Mic mute,0:OFF / 1:ON28 GND - GNDPin No. Port name VO29 PF6 I30 IRQ2 I31 DTO 1 /032 TFSO 1 /033 RFSO 1 /034 DRO 1 /035 SCLKO 1 /036 Vdd -37 DT1 1 /038 TFS1 1 /039 RSF1 1 /040 DR1 1 /041 GND -42 SCLK1 1 /043 ERESET -44 RESET I45 EMS -46 EE -47 ECLK -48 ELOUT -49 ELIN -50 EINT -51 EBR52 BR I53 EBG54 BG 055-57 IAD13~15 1 /058 IACK 059 Vdd -60 GND -61 IS I62 IAL I63 IRD I64 IWR I65 D8 1 /066 GND -67 Vdd -68~70 D9~11 1 /071 GND72~79 D12~19 1 /080 GND -81~84 D20~23 1 /085 FL2 086 FL1 087 FLO 088 PF3 I89 PF2 I90 Vdd -91 PWD I92 GND -93 PF1 I94 PFO I95 BGH 096 PWDACK 097 AO 098-100 IAD0~2 1 /0TKR-840FunctionPrag. 1/0/ Main CPU/ TX/ Rxcontrol,0:TX/ 1:RXInterrupt Req./pull upSPORTO / CODEC/ CODEC DataSPORT0/ CODEC, Devider/ CODEC DataSPORT0 / CODEC, Devider/ CODEC DataSPORTO / CODEC/ CODEC DataSPORT0/ CODEC, Devider/ CODEC DataVddSPORT1/ CODECSPORT1/ CODEC,DeviderSPORT1/ CODEC,DeviderSPORT1/ CODECGNDSPORT1/ CODEC,DeviderEmulation/ ICE conectorReset IN/Reset IC, ICE conector/DSP resetEmulation / ICE conectorEmulation/ ICE conectorEmulation / ICE conectorEmulation/ ICE conectorEmulation / ICE conectorEmulation / ICE conectorEmulation / ICE conectorBus request I pull up,ICE conectorEmulation/ ICE conectorBus request I ICE conectorInternal DMA port/ Sub CPUIDMA Acknowlege/ Main CPUVddGNDIDMA Select I pull up,Main CPUIDMA Address Latch/ pull up,Main CPUIDMA Read Enable/ pull up,Main CPUIDMA Write Enable/ pull up,Main CPUData 1 /0/ NCGNDVddData 1 /0/ NCGNDData 1 /0/ NCGNDData 1 /0/ NCOutput Frag/ CODEC MC terminalOutput Frag/ CODEC MD terminalOutput Frag/ CODEC ML terminalPrag. 1 /0/ Main CPU/ RX mute 0:OFF/ 1:ONMode Select / pull up/ HOST mode selectVddPower ControlNDDGNDMode Select I pull down/ HOST mode selectMode Select/ pull up/ HOST mode selectBus Grant Hung/ NCPower Control/ NCAddress/ NCInternal DMA port/ Sub CPU 43