Kenwood-KCABT-100-Service-Manual 电路图 维修手册.pdf

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1、 2006-11 PRINTED IN JAPAN B53-0472-00 (N) 955 Bluetooth HANDS FREE BOX KCA-BT100 SERVICE MANUAL Bluetooth Bluetooth Hands Free Box TO HEAD UNITMICTO 5L I/F Cord with DIN connector (E30-6645-05) Magic tape (H30-0600-04) Screw set (N99-1789-05) Microphone (3m) (W01-1676-05) About removing the 2 hexago

2、nal head screws : “TORX T8 Screwdriver” is necessary. This product uses Lead Free solder. RadioFans.CN 收音机爱 好者资料库 KCA-BT100 2 BLOCK DIAGRAM u-COM MAIN FLASH ROM IC8IC3 E2PROM (NOT USED) BU5V SW5V IC5 5V 3.3V 3.3V 5V IC6 BLUETOOTH RF MODULE SYSTEM u-COM (LX-BUS u-COM) IC2 A1IC7 BU5V SW3.3V SW3.3V BU5

3、V IC4 IC RESET (LX-BUS I/F) CH J1 CN1 (LX-BUS I/F) H/U CHCON Q3 IC10 Q5 BU DET A8V BU5V Q6,16 Q9,10 IC9 MIC INPUT J2 Q13IC11 BU5V A8V SW5V SW3.3V CODEC ANTENNA CHIP BU5V BPF IC13 SELECTOR 5V SW REG 3.3V REG ROM CORRECTION L1 PCM BEEP BOOT E CLK1 DATAH1 REQH1 DATAC1 REQC1 RESETP TXD RF TEST RXD RTS C

4、TS MUTE1 RESET MUTEN CHCON1 RSTN PON PON2 D15 D0 A0 A18A18 A0 D15 D0 16 19 2 22 22 DX DR FS BCLK RELAY2 BUDET RESETP BOOT E SS2 CHCON2 CHCON1 CHCON0 RESET RSTN MUTEN 4 BU Lch2 Rch2 AGND2 MUTE2 RESET2 CONT1 CONT4 CONT3 CONT2 5 5 5 RTS TXD RXD CTS BCLK FS DX DR REQH1 DATAC1 DATAH1 CLK1 REQC1 DATAH2 DA

5、TAC2 REQH2 REQC2 CLK2 REQH0 DATAC0 DATAH0 CLK0 REQC0 CHCON0 DATAC2 REQH2 REQC2 DATAH2 CLK2 CHCON2 REQC0 REQH0 DATAC0 DATAH0 CLK0 MUTE0 AGND0 Rch0 Lch0 BU RESET0 GND 2.45GHz PROCESSOR UNIT (X32-5852-70) Ref. No.Application / FunctionOperation / Condition / Compatibility IC2System -COM (LX-BUS -COM) I

6、C3Main -COM IC4Reset ICDetection voltage is 3.5V IC55V 3.3V ConversionLevel conversion from 5V to 3.3V IC63.5V 5V ConversionLevel conversion from 3.3V to 5V IC7PCM Codec IC8Flash Memory IC93.3V REG IC105V REG IC11Analog SWSwitches 5L-signal output and hands-free signal output. IC12MIC Input AMPAmpli

7、fies MIC input. IC13BPFAmplifies audio reference circuit signal and hands-free signal. Q1SW5V SWVb=L: SW5V ON, Vb=H: SW5V OFF Q2Reset CONTVb=H: It resets IC2 and IC3 COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KCA-BT100 3 Ref. No.Application / FunctionOperation / Condition / Compatibility Q3Chang

8、er CONTVc=L: Head unit is used, Vc=H: Head unit is not used Q5BU DETBU ON: Vc=L, BU OFF: Vc=H Q6BU5V AVRQ16s Vb=H: 5V ON Q7,8Analog SW CONT Controls switching of IC11 and Q13 IC2s pin22=H: Changer audio signal, IC2s pin22=L: Hands-free audio signal Q9,10A8V AVRQ9s Vb=H: 8V ON Q11Analog SW CONT Contr

9、ols switching of IC11 and Q13 IC2s pin22=H: Changer audio signal, IC2s pin22=L: Hands-free audio signal Q12SW14VIC3s pin21=H: 14V ON Q13Audio GND SW Changer or Hands-free GND select SW IC2s pin22=H: Changer GND, IC2s pin22=L: Hands-free GND Q15LX-BUS Mute BufferIC3s pin25=L: Vc=H, IC3s pin25=H: Vc=L

10、 Q16BU5V AVRQ16s Vb=H: 5V ON SYSTEM -COM: IC2 on X32- (PROCESSOR UNIT) Pin No.Pin NameI/OApplicationProcessing / Operation / Description 13NC-Not used 4AVSS-A/D reference GND 5P130-GND 6REQH1OCommunication request to CH1L: Communication request is found 7AVREF1-D/A reference voltage input 8DATAC1IDa

11、ta input from CH1 9DATAH1OData output to CH1 10HCLK1I/OClock output to CH1 11DATAH0IData input from head unit 12DATAC0OData output to head unit 13HCLK0I/OClock input from head unit 14REQC0OCommunication request to head unitL: Communication request is found 15REQH2OCommunication request to CH2L: Comm

12、unication request is found 16DATAC2IData input from CH2 17DATAH2OData output to CH2 18HCLK2I/OCH2 clock output 19CHCONO1OCH1 control outputH: CH1 control request 20CHCONO2OCH2 control outputH: CH2 control request 21NC-Not used 22RELAY2ORelay controlH: CH2, L: CH1 2332NC-Not used 33VSS1-GND 3459NC-No

13、t used MICROCOMPUTERS TERMINAL DESCRIPTION COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KCA-BT100 4 Pin No.Pin NameI/OApplicationProcessing / Operation / Description 60RESETIReset inputL: Reset 61REQH0ICommunication request input from head unitL: Communication request is found 62BUDETIDetection in

14、put of momentary power downH: Detection of momentary power down 63PO2-GND 64REQC2ICommunication request input from CH2L: Communication request is found 65REQC1ICommunication request input from CH1L: Communication request is found 66CHCON1IChanger control input from head unitL: Changer control reques

15、t 67VSS0-GND 68VDD1-Power supply voltage 69X2-Resonator connection 70X1IResonator connection 71IC-Internal connection 72NC-Not used 73CHCON2ICH2 control input from head unitL: CH2 control request 74AVDD0-A/D anolog power supply voltage 75AVREF0-A/D reference voltage input 7680NC-Not used MAIN -COM:

16、IC3 on X32- (PROCESSOR UNIT) Pin No.Pin NameI/OApplicationProcessing / Operation / Description 1,2NC-Not usedL fixed 3LX DATA SOData to master unitPull-up (B.U.) 4LX DATA MIData from master unit 5LX CLKILX-BUS clockPull-up (B.U.) 6BYTE-External data bus switching inputConnects to GND 7CNVSS-Processo

17、r mode switching inputPull-down (GND) 8,9NC-Not usedL fixed 10RESETIForced reset from master unitL: Reset 11XOUTOMain clock output 12VSS-Power supply inputConnects to GND 13XINIMain clock input 14VCC1-Power supply inputConnects to B.U.5V 15NMIINMI interruption inputPull-up (B.U.) 16PON2OCircumferenc

18、e power supply control (5V)L: ON 17LX CONIStart-up request from master unitH: Slave unit ON, L: Slave unit OFF 18LX REQ MICommunication request from master unit 19MUTENI/OCodec muteL: Mute 20RSTNOCodec resetL: Reset 21PONOCircumference power supply control (A8V)H: ON 22BEEPOBeep output2kHz 23BOOT EI

19、Test mode inputL: Test mode 24RESET PI/OModule reset outputL: Reset MICROCOMPUTERS TERMINAL DESCRIPTION KCA-BT100 5 Pin No.Pin NameI/OApplicationProcessing / Operation / Description 25LX MUTEOMute request to master unitL: Mute ON, H: Mute OFF 26LX REQ SOCommunication request to master unitPull-down

20、(GND) 27ROM SCLI/OE2PROM clock for ROM correctionPull-up (B.U.) 28ROM SDAOE2PROM data for ROM correctionPull-up (B.U.) 29MCU RXDONot used (Terminal for flash ROM writing)L fixed 30MCU TXDONot used (Terminal for flash ROM writing)L fixed 31MCU CLKONot used (Terminal for flash ROM writing)L fixed 32SC

21、IF0 RTSIBluetooth module transmission control input 33SCIF0 RXDOBluetooth module data output 34SCIF0 TXDIBluetooth module data input 35NC-Not usedL fixed 36SCIF0 CTSOBluetooth module transmission control output 37NCINot usedPull-up (B.U.) 38NC-Not used 39NCINot usedPull-up (B.U.) 40NC-Not used 41NCI

22、Not usedPull-up (B.U.) 42RDOExternal memory reading permissionL: Reading 43NC-Not used 44WROExternal memory writing permissionL: Writing 45NCONot usedPull-up (B.U.) 46DISP SELISwitch for 2006s models with 14-SEG display L: 2006s models with 14-SEG display H: Others condition (Default) 47A18OExternal

23、 bus addressAddress output 48CSOFlash ROM chip enableL: Selected 49A17OExternal bus addressAddress output 50NC-Not usedOpen 5159A16A8OExternal bus addressAddress output 60VCC2-Power supply inputConnects to B.U.5V 61A7OExternal bus addressAddress output 62VSS-Power supply inputConnects to GND 6369A6A

24、0OExternal bus addressAddress output 70NC-Not usedOpen 7186D15D0I/OExternal bus dataData input/output 87FLASH RSTOFlash ROM resetL: Reset 88FLASH RYIFlash ROM ready inputL: Busy (During writing) 8993NC-Not usedL fixed 94AVSS-Analog power supply inputConnects to GND 95NC-Not usedL fixed 96VREF-Refere

25、nce voltage inputConnects to GND 97AVCC-Analog power supply inputConnects to B.U.5V 98,99NC-Not usedL fixed 100ROM WRIROM correction writing mode inputL: ROM correction writing mode MICROCOMPUTERS TERMINAL DESCRIPTION KCA-BT100 6 Flash ROM check function To check connection of the external flash ROM

26、. How to enter the test mode Set Lo level at pin 23 of the main -com (IC3) and then reset it to enter the test mode. Operations During operations, the Hi/Lo level at pin 31 of the main - com (IC3) changes. Output level will become constant after the completion of operations. Hi level: OK Lo level: N

27、G Clear of the test mode The unit returns to the initial condition by reset, ACC OFF, POWER OFF and momentary power down. How to enter the test mode Set the connected head unit to the test mode to enter the test mode. Test mode conditions In the test mode, telephone number and name are not nor- mall

28、y displayed. (In order to use for the display in the test mode) Key operations have to be the same as the operations in the normal mode. The unit comes into conditions when the telephone is con- nected even if it is not physically connected. ROM correction version display and Main -com (IC3) softwar

29、e version display In the name used to enter the telephone directory search mode, ROM correction version and Main -com (IC3) ver- sion are displayed. “ S x . x x R x . x x ” (Main -com) (ROM correction) Switch status display (DISPLAY SELECT: S2) Depending on the status of the switch, the level at pin

30、 30 of the main -com (IC3) varies. When the switch (S2) is set to the side 1: Hi level When the switch (S2) is set to the side 2 (GND side): Lo level TEST MODE ROM CORRECTION WRITING MODE Mode to make ROM correction E2PROM externally writable. How to enter the write mode Reset while keeping the Lo l

31、evel at the write mode terminal (pin 100 of the Main -com (IC3) The write mode condition is retained while the write mode terminal is at Lo level. In this condition, externally write the data. How to check the data q Enter the test mode. (Refer to “How to enter the test mode” for how to enter the te

32、st mode) w Enter the telephone directory search mode and check ROM correction version. KCA-BT100 7 Check of calls when parts or Processor Unit (X32-) is replaced After parts or Processor Unit (X32-) is replaced, connect Bluetooth compatible cell phone to KCA-BT100, and check Hands-free calls. Teleph

33、one number that was used to check calls is recorded in a telephone directory. After the completion of the check, please remove the rel- evant telephone number from the telephone directory. When replacing parts 1. Processor Unit (X32-) has been subjected to various RF performance tests before factory

34、 shipment. Therefore, Bluetooth RF Module (A1) and Main -COM (IC3) cannot be replaced. When Bluetooth RF Module (A1) or Main -COM (IC3) has to be replaced, replace Processor Unit (X32-) of Processor Unit Assy (Y33-2680-00) that is available for the service replacement. (Refer to Ref. No.10 of the Ex

35、ploded View) Note that the Chassis (702) of Y33-2680-00 does not have Serial Number Sticker. Thus, do not use the Chassis of Y33-2680-00 when replace- ment. 2. Telephone directory data is stored in the Flash Memory (IC8). Replacing the Flash Memory (IC8) clears the telephone di- rectory data. Troubl

36、eshooting Error symptomsCheck points Bluetooth device cannot be searched from cell phone.IC2 (System -COM), IC3 (Main -COM) and their perimeter. Changer source selection is also impossible.Q6 (BU5V AVR) and its perimeter. Bluetooth device cannot be searched from cell phone.A1 (Bluetooth RF Module),

37、IC6 (3.3V 5V Conversion) and their perimeter. Changer source selection is possible.IC9 (3.3V REG.), IC10 (5V REG.) and their perimeter. Bluetooth device can be searched from cell phone butIC5 (5V 3.3V Conversion) and its perimeter. connection (authentication) is impossible. Changer source selection

38、is possible. The telephone directory data becomes NO DATA after theIC8 (Flash Memory) and its perimeter. telephone directory data is transferred from the cell phone. Bluetooth device can be searched only when the device isL1 (Chip ANT.) and its perimeter. brought near to cell phone. Input/Output of

39、the hands-free audio are NG.IC7 (PCM CODEC), Q10 (A8V AVR) and their perimeter. (Cannot send or receive call) Audio level of hands-free call is low.IC13 (BPF) and its perimeter. Cannot send call.IC12 (MIC Input AMP) and its perimeter. Receiving audio does not come out of the Head Unit speaker.IC11 (

40、Analog SW) and its perimeter. REPLACING PARTS KCA-BT100 8 ABCDE 1 2 3 4 5 6 7 PC BOARD (COMPONENT SIDE VIEW) Refer to the schematic diagram for the values of resistors and capacitors. CN1 J1 D6 D7 D10 D11 Q9 Q10 Q15 D8 D13 D14 D15 D16 D17 D19 J2 Q2 Q3 Q5 Q12 Q13 Q1 D2 D3 D4 Q7 Q8 S2 IC11 IC13 IC5 IC

41、4 IC2 IC3 IC10 IC7 PROCESSOR UNIT X32-5852-70 (J76-0207-12) MICROPHONEDISPLAY SELECT 5L INTERFACE 1 1 1 13 14 1 2 1 1 1 1 76 24 7 4 14 75 100 1 C37 L4 C42 C49 SDA SCL L10 C38 C39 C41 C60 R26 R45 C12 C26 L6 L9 C33 C62 L7 R10 R11 R12 C3 C4 C64 R79 C8 CP1CP2 C5 C6 C63 CP4 CP5 R1 R2 R8 C17 C23 R13 R14 C

42、11 C15 C16 C18 C19 C24 C29 C40 C47 C57 C59 R37 R48 R78 L1 C2 R7 X1 C20 C21 C22 C25 C27 C30 C32 C35 C43 C44 C45C46 CP6 CP14 CP15 CP16 CP17 CP18 CP19 CP20 CP21 CP22 CP23 R9 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R27 R28 R29 R30 R31 R89 R33 R35 R36 R47 R54 R60 R69 R71 R75 R77 X2 R86 W15 2041 60 6180 2

43、140 23 4 14 8 5 8 5 8 7 12 13 2650 2551 CC EEB CC BBE C E B B C E BE BE BE BE EB BE BE BE X32-5852-70 Ref. No.Address IC23B IC34D IC43B IC53C IC74C IC104B IC115C IC134C Q14D Q23B Ref. No.Address Q33B Q53B Q74D Q84D Q94C Q103C Q124C Q135D Q154D KCA-BT100 9 JIHGF 1 2 3 4 5 6 7 PC BOARD (FOIL SIDE VIEW

44、) Refer to the schematic diagram for the values of resistors and capacitors. CTSO RXDO TXDIVCC VSS S-RFTEST S-BOOTE SCTS SRXD CNVSS RESET SRTS STXD SRTS MCLK MRXD MTXD ROMWR NC WR RFTEST BOOTE SDA SCL A4V A8V B.U5V SW5V SW3.3V ESD-GND D18 Q11 Q6 Q16 A1 D5 D9 D12 D20 Q14 D1 IC12 IC9 IC6 IC8 IC1 1 1 1

45、 1 1 1 C54 C13 U-W C31 L5 C14 C65 CP9 CP12 L8 C7 CP3 C1 R5 R6 C28 C34 C36 C53 R39 R49 R76 W1 C9C10 CP7 CP8 CP10 CP11 R88 R87 C48 C50C51 C52 C55 C56 C58 C61 CP13 R3 R4 R25 R32 R34 R38 R40 R41 R42 R43 R44 R46 R50 R51 R52 R53 R55 R56 R57 R58 R59 R61 R62 R63 R64 R65 R66 R67 R68 R70 R72 R73 R74 R85 R81 W

46、11 W12 W13 W14 R82R83 R84 C67 R80 5 45 82425 48 4 58 8 54 BEB CC 7 8 4430 22 23 29 EB BE BE PROCESSOR UNIT X32-5852-70 (J76-0207-12) X32-5852-70 Ref. No.Address IC64H IC83G IC93I IC125H Q64I Q114G Q163I KCA-BT100 10 ABCDE 1 2 3 4 5 6 7 A1 Q2 D1 D2 Q3 D4 Q5 D3 Q1 Q15 FTZ6.8ED14-17: DTA114EUA:Q15 UDZS

47、6.2B RB160L-40 UDZS9.1B DA204U D4,6,7,10,11,18-20 UDZS5.6B DAP202U DAN202U D13 D9 D8 : : : : D3,5 D2 D1 : : : IMX9 UMC2N UMA2N CPH3105-E UMG2N DTC144EUA 2SB1184 2SC4081 Q10 Q13 Q12 Q11 : : : Q5,9,16 Q8 Q7 Q6 : : : : : MBM29F800TA70 S-80835CNNB-G 30620FCP4W2GP TC74LVX08FT:IC5 DTC124EUA NJM4580V-ZB TC

48、4066BFT(N) SI-8050JDNF BA33BC0WFP AK2301A TC7WT126FU-F :IC10 Q1-3 IC12,13 IC11 : : : IC9 IC8 IC7 IC6 : : : : 780058GC653A IC4 IC3 IC2 : : : S2 DISPLAY SELECT FLASH MEMORY PCM CODEC RESET IC SYSTEM u-COM (LX BUS u-COM) BLUETOOTH RF MODULE GND LINE SIGNAL LINE B LINE ROM CORRECTION E2PROM SW5V SW CHAN

49、GER CONT BU DET RESET CONT LX-BUS BUFFER MUTE CHIP ANT. (NOT USED) CP14 47 PTA5 SIOFSYNC SIOFRXD SIOFTXD SIOFSCK RF TEST GND7 SCIF0TXD SCIF0RTS SCIF0RXD SCIF0CTS SCIF1CTS SCIF1RTS SCIF1RXD SCIF1TXD PTE0 GND4 NC25 GND5 BOOTE GND6 MCLK AVREF1 DATAC1 DATAH1 DATAH0 DATAC0 REQC0 REQH2 DATAC2 DATAH2 CHCONO1 CHCONO2 21 80 NC NC NC NC NC 40 39 38 37 NC NC 42 41 NC NC 45 44 43 29 NC NC NC VSS1 NC NC NC NC 33 36 35 34 32 31 30 NC NC NC NC NC NC RELAY2 NC 25 28 27 26 24 23 22 REQC1 NC 51 48 NC NC 47 46 NC NC NC 50 49 NC NC NC 53 52 NC NC 56 55 54 REQH0 B