Kenwood-KTCHR-100-Service-Manual电路原理图.pdf
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1、 2003-9 PRINTED IN JAPANB53-0094-00 (N)1424HD RADIO TUNERKTC-HR100SERVICE MANUALHDRADIOTUNERTOSLAVEUNITTOSLAVEUNITTOCONTROLLERAUDIOOUTRLANTMetallic cabinet(A01-2830-02)Cord with plug(E30-4291-05)Cord with plug(E30-4953-05)Magic tape(H30-0051-05)Mounting hardware(J21-3801-04)Screw set(N99-1623-05)CAU
2、TION (Repair of PROCESSOR UNIT)You can not repair IC1 (TMSDRI200CGLZ5).If you can repair those parts please change to PROCESSOR UNIT (X32-5510-10)KTC-HR1002BLOCK DIAGRAMSDRAMDSPFPGAFLASH ROM70.56MHzDEMODULATOR43.20MHzIC4X1IC1IC6IC7 IC2A1CN2CN1 CN5CN1CN2to EXTERNAL UNITCN3CN4(+1.25V)3.3V 7724(+3.3V)3
3、.3V DSP(+2.5V)2.5V FPGA(+3.3V)1.25V DSPF/EA1CF1,3ANTENNA(OPTION)SWITCHFILTERS &EEPROMIC15u-COMIC11IC5AMP SWIC2BUFFERIC7AMPIC3,4to WRITERCN6to HOST PCCN2to CONTJ4to H/UJ2to CD-CHRCAJ1 J3(5L BUS) (5L BUS)20.00MHzX1REGULATORIC1IC6IC14IC17IC12Q8,L2,3IC9+8V+3.3V+2.5V+1.25V+8.5V+5VREGULATORREGULATORREGULA
4、TORREGULATORBU5VDCDC-CONVERTERto H/UJ2SIGNALCONTROLCLOCKRECEIVER(ANALOG) (DIGITAL)AUDIOI2CIF OUTIF OUTIF OUT(DIGITAL)IF OUT(ANALOG)AUDIOUARTI2CBUPOWER SUPPLY(X32-5510-10)(X14-9310-10)POWER SUPPLY (X14-9310-10)KTC-HR1003 DIGITAL TUNER UNIT (X14-9310-10)Ref. No. Application/Function Operation/Conditio
5、n/CompatibilityIC1 8V regulator Power supply for audio systemIC2 Analog Switch Audio SwitchIC3,4 Op-amp Audio amp 2 for CD-CH signalIC5 Op-amp Audio amp 2 for demodulated signalIC6 DC/DC converter control Power supply for 3.3,2.5VIC7 Op-amp Buffer amp for audio signalIC8 Op-amp Convert for audio bia
6、s circuitIC9 1.25V regulator Power supply for IDMIC11 -com -IC12 5V regulator Power supply for A1 (tuner module)IC13 Reset IC -IC14 5V regulator Power supply for BU 5VIC15 1kbit EEPROM Back-up data memoryIC16 Dual 2 input OR GATE -IC17 8.5V regulator Power supply for A1 (tuner module)IC18 Op-amp Com
7、parator for voltage detectQ1 Mute For right muteQ2,3 SW For main power supply SWQ4 Mute For left muteQ5 SW For mute on : muteQ6,7 SW For audio source switchQ8 DC/DC converter For 3.3,2.5V power supplyQ10 SW For B.U detect on : detectQ11 SW For B.U detect on : no-detectQ12 Inverter For B.U detect mut
8、eQ14 SW For 5L CH-CON signalQ16 SW For resetQ17 SW For CD-CH resetQ18 Amplifier IF amp 2Q19 Amplifier Signal Amp 2 for AM-IF signal (narrow band)Q20 Inverter For AM filterQ21 Inverter For FM filterQ22 Amplifier Signal Amp for FM-IF signal (wide band)Q23 Amplifier Signal Amp for AM-IF signal (wide ba
9、nd)Q24 Amplifier Signal Amp for FM-IF signal (narrow band)Q25 Amplifier Signal Amp 1 for AM-IF signal (narrow band)Q26 SW For FM filterQ27 5v to/from 3.3v level converter For I2C dataQ28 5v to 3.3v level converter For I2C clockQ29 Amplifier IF amp 1Q33 SW For AM filterQ35 SW For B.U detect mute on :
10、 muteQ36 Level converter For Blend signalQ37 SW For tuner I2C SCL signalCOMPONENTS DESCRIPTIONKTC-HR1004Ref. No. Application/Function Operation/Condition/CompatibilityQ38 SW For tuner I2C SDA signalQ39 SW For DC-DC controller CS signalD1 Diode Protect for a wrong connectionD2,4,6,17,20,21 Zenner dio
11、de Protect for irregularly voltage inputD3,5 Diode Protect for irregularly voltage inputD7 Diode Divider for left and right mute circuitD8 Rectifier diode For controller voltageD9,10 OR gate For muteD11 Zenner diode Protect for irregularly voltage inputD13 OR gate For muteD14 Zenner diode Reference
12、voltage for audio bias voltageD15,16 Schottly barrier diode For DC/DC converterD18,19 Diode Protect for B.U voltage detect circuitD22,23 Zenner diode For B.U voltage detectD25 Diode Protect for a wrong voltage phenomenonD26,27,29,30 Zenner diode Protect for irregularly voltage inputD28 Diode Referen
13、ce voltage for regulatorD31 Rectifier diode For B.U 5VD32 Diode Protect for irregularly voltage inputD34 OR gate For interruptD35 Diode Force for nomal voltage levelD37 OR gate For muteD38 Diode For Controller Power PROCESSOR UNIT (X32-5510-10)Ref. No. Application/Function Operation/Condition/Compat
14、ibilityIC1 DSP Digital demodulator, Audio decoderIC2 FPGA For interface between IC5 and DSPIC4 Flash Memory Program data for DSP and FPGAIC6 64M SDRAM DSP work areaIC7 Demodulator AM FM Analog demodulator and Digital Audio interfaceQ1 Voltage Regulator Core voltage supply for IC7 (+2.5V)D1 LEDThis L
15、ED is toggled by the DSP software at a rate of approximately (200ms) to indicatethat it is operational.D2 Diode Voltage converter for RESET signalD3 LED For DC+3.3 V power supply checkD4 LED This LED will blink continuously if the FPGA is configured correctly.D6 Diode Voltage protection for DSPCOMPO
16、NENTS DESCRIPTIONKTC-HR1005MICROCOMPUTERS TERMINAL DESCRIPTION MICROCOMPUTER : 70F3030BYGC1R9 (X14 : IC11)Pin No. I/O Pin Name Function Processing Operation Description1ONC Not connect2OSCK I2C clock output3ORX UART input4OTX UART output5ONC Not connect6-EVDD Power supply for port7-EVSS Ground for p
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