Kenwood-KDC-232-MR-Service-Manual(1) 电路图 维修手册.pdf

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1、 2005-11 PRINTED IN JAPAN B53-0344-00 (N) 600 CD RECEIVER KDC-232MR SERVICE MANUAL Panel assy (A64-3804-02) SPARE TDF PANEL MAIN UNIT NAMETDF PARTS No.TDF NAME KDC-232MRY33-2410-62TDF-62DMR Mounting hardware assy (J21-9716-03) Lever (D10-4589-04) x2 DC cord (E30-6415-15) Screw set (N99-1757-05) Escu

2、tcheon (B07-3123-01) VOL AUD FF SET UP SCANRDMREP KDC-232MR AUTO FM AM QAMEMENUM.RDM SCRL /C.S. Carrying case (W01-1661-05) Screw (4x16) (N84-4016-48) This product uses Lead Free solder. RadioFans.CN 收音机爱 好者资料库 KDC-232MR 2 BLOCK DIAGRAM CD CHANGER J2 TUNER,MPX IC10 & AM AGC Q501 FM AGC L506 J4 E-VOL

3、. IC11 E2PROM SYSTEM u-COM IC1 IC7 RDS DECODER RST IC IC8 PRE OUT MUTE Q351,352 IC4 POWER IC MUTE LOGIC IC6 J1 PAN5V Q151 Q72 SERVO VFD REG IC15 POWER SUPPLY IC IC3 ED1 VFD with VFD DRIVER IC1 REMOTE IC3 VOL S11 KEY MATRIX DSI Q155 ACC DET BU DET Q53 Q52 Q51 SURGE DET P-CON TEL MUTE BACK-UP SP OUT P

4、-ANT ACC PRE OUT TEL MUTE C81,D81,Q82 DME1 SERVO A8V BU5V AUDIO OUT AM+B ANT MPX OUT MPX IN 800mV 1200mV AUDIO OUT BU5V A8V BACK PAN5 SERVO P-ANT SW5V AM+B A8V BU5V P-CON SW5V AM+B AUDIO+B VCC ILLUMI BU5V ILLUMI PAN5VBU5V KEY :CHANGER CD FM (E Type) FM (J/K Type) AM (J/K Type) AM (E Type) : : : : :

5、1800mV 1372mV 600mV 855mV 3600mV 3600mV ELECTRIC UNIT (X34-) SWITCH UNIT (X16-) 7 VREF L-ch R-ch A. GND A8V D. GND BU5V LOE/LIM SW 12EJE SW LOS SW S7.5V LO/EJ MOTOR S. GND VREF VREF 2 2 4 DRV MUTEMUTE DOUT DATA 4 2 CLK MSTOP MRST MUTE L MUTE R 2 2H L 12 5 2 4 3 20 21 13 15 1 14 9 7 6 8 18 12 11 10 2

6、2 19 EF A C B TR COIL FO COIL APC SERVO u-COM IC2 Q1 16.934MHz CLOCK X1 DRIVER MOTOR IC3 PROCESSOR LPF IC4 8V SW Q4 Q3 SW S3 S1 S2 D. GND RF AMP IC1 REF 5V REG D2 S. GND A. GND D. GND SLED LOADING 5V SW Q2 D. GND D. GND LOADING & SLED MOTOR SPINDLE MOTOR AMP Q5,6,D3 CURR. DM1 DM2 SW +5V A+5V PICK-UP

7、 (DPU1) CD PLAYER UNIT (X32-5750-00) BOARD (X34-) MOTHER MECHA ASSY (X92-) RadioFans.CN 收音机爱 好者资料库 KDC-232MR 3 ELECTRIC UNIT (X34-4160-12) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1System -COMSystem controller. IC3Power Supply ICDC5Vx2, 7.9Vx1, 8.1Vx1, 10.2Vx1, P-CON, P-

8、ANT output. IC4Power ICSignal amplifier. IC6Mute logic ICControls for mute action. IC8Reset IC“L” : detection voltage below 3.6V. IC10E-VOL & TunerE-VOL, Tuner, Stereo decoder. IC11E2PROMSaves & Loads for tuner adjustment data. IC15Regulator ICOutputs 11.3V for LED and VFD. Q51Serge Det.ON when the

9、base goes “Hi”. Q52B.U. Det.ON when the base goes “Hi” during BU applied. Q53ACC Det.ON when the base goes “Hi” during ACC applied. Q71Control SW for SERVO+BON when the base goes “Hi”. Q72SERVO+B AVROutputs voltage 7.5V. Q151Panel 5V SWON when the base goes “Lo”. Q155DSI ILLUMI SWON when the base go

10、es “Lo”. Q252STANDBY SW for IC4ON when the base goes “Lo”. Q330Mute driver for Q351, Q352ON when the base goes “Lo”. Q351Mute SW for Lch PRE OUTAudio pre-output is muted when the base goes “Hi”. Q352Mute SW for Rch PRE OUTAudio pre-output is muted when the base goes “Hi”. Q501AM RF AmplifierAdjusts

11、for Gain. SWITCH UNIT (X16-3500-11) Ref. No.Application / FunctionOperation / Condition IC1VFD DRIVER Q21PAN SW5V“ON” when the base goes “H”. CD PLAYER UNIT (X32-5750-00) Ref. No.Application / FunctionOperation / Condition Generation of RF signal based on the signals from the APC circuit and pickup,

12、 and IC1 RF AMPLIFIER respondinggeneration of servo error (focusing error and tracking error) signals. to CD-RWDetection of dropout, anti-shock, track crossing and off-tracking conditions, included gain control function during CD-RW. Focusing, tracking, sled and spindle servo processing. IC2 CD SIGN

13、AL PROCESSORAutomatic adjustment (focusing, tracking, gain, offset and balance) operations. built-in -COMDigital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data interpolation processing) operations, and microcomputer function. IC34ch BTL DRIVER Focusing coil, tracking coil,

14、 spindle motor and sled motor driver, disc loading and eject operation. IC4L.P.F. (LOW PASS FILTER)2nd low pass filter for audio signals. Q1APC (AUTOMATIC POWER CONTROL)LD power control. Q2DIGITAL +5V SW“ON” When P. ON signal goes “L”. COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KDC-232MR 4 Ref.

15、No.Application / FunctionOperation / Condition Q3Q4 SW“ON” When P. ON signal goes “L” (SW+5V is ON). Q4ANALOG +8V SW“ON” When P. ON signal goes “L” (Q3 is ON). Q5, 6CURRENT AMPCurrent driver. COMPONENTS DESCRIPTION MICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM -COM : IC1 on X34- (ELECTRIC UNIT) Pin No.

16、Pin NameI/OApplication Truth Value Processing/Operation/Description Table 1DCERRIDC offset error detection input 2LINE MUTEIPhone detection TEL mute: 1V or lower NAVI mute: 2.5V or higher 3ROTARY CWIRotary encoder input 4AVSS- 5TUNER TYPE1IE-VOL setting switchingqRefer to the truth value table 6TUNE

17、R TYPE2IE-VOL setting switchingqRefer to the truth value table 7AVREF1- 8VFD DATAFIData input from VFD driver 9VFD DATASOData output to VFD driver 10VFD CLKOCLK output to VFD driver 11VFD RSTOReset output to VFD driver L: Display off, key reset, panel detached H: Display on, key scan 12VFD CEOCE out

18、put to VFD driver 13ROTARY CCWIRotary encoder input 14TDF DETIPanel detectionH: Panel detached, L: Panel attached 15PWIC BEEPOBeep output 16LX DATA SIData from slave unit 17LX DATA MOData to slave unit 18LX CLKI/OLX-BUS clock 19RDS AFSLOTuner RDS mute outputwRefer to the truth value table ADJ=H 20TU

19、NER ADJIFor IC10 adjustmentPS1-1, 2=L PS1-3=Hi-Z, PS2-1, 2=Hi-Z Tuner data, CLK=Hi-Z 21TUNER SDITuner search stop inputH: Station found, L: Station not found KDC-232MR 5 Pin No.Pin NameI/OApplication Truth Value Processing/Operation/Description Table 22LX RSTOForced reset to slave unitH: Reset, L: N

20、ormal 23LX CONOStart-up request to slave unitH: Slave unit ON, L: Slave unit OFF 24LX REQ MOCommunication request to the slave unit 25AUD SDAI/OE-VOL and tuner I2C data input/output 26AUD SCLI/OE-VOL and tuner I2C CLK output 27PWIC STBYOPower IC STBY outputH: Power IC ON, L: Power IC OFF 28VOL MUTEO

21、E-VOL mute outputL: Mute OFF, Hi-Z: ON 29PWIC MUTEOPower IC mute outputL: Power OFF, STANDBY, or TEL mute. 30TUNER FANC OUTOTuner block (in -com) checkL: E2P OK, H: NG 31RESET2OMute for resetOutput L 32RDS DATAIRDS decoder data input 33VSS1- 34RDS QUALIRDS decoder QUAL input 35ACC DETIACC detectionL

22、: ACC ON, H: ACC OFF 36BU DETIMomentary power down detection L: BU found, H: BU not found (momentary power down) 37PONI/OSW5V/SW14V controlL: ON, Hi-Z: OFF 38PS2-2OPower Supply control output 2-2eRefer to the truth value table 39PS2-1OPower Supply control output 2-1eRefer to the truth value table 40

23、PS1-1OPower Supply control output 1-1eRefer to the truth value table 41PS1-2OPower Supply control output 1-2eRefer to the truth value table 42PS1-3OPower Supply control output 1-3eRefer to the truth value table 43NC- 44PON CDI/OPower supply control for MP3L: ON, Hi-Z: OFF 45CD MUTEICD mute requestL:

24、 Mute request 46CD MSTOPOCD mechanism -com stop H: Mechanism -com in operation, L: Mechanism -com stopped 47CD LOE LIM SWICD detection (chucking SW)H: Loading completed, L: Disc not found 48CD LOEJI/OCD motor controlrRefer to the truth value table 49CD MOTOROCD motor controlrRefer to the truth value

25、 table 50NC- 51CD MRSTOCD mechanism -com resetH: Normal, L: Reset 52CD SCLI/OCD mechanism I2C clock output 53CD DISC12 SWI12cm disc detection 54CD LOS SWICD loading detection 55CD SDAI/OCD mechanism I2C clock input/output 56OEM DISP CEI/OExternal display CEExternal display 57OEM DISP CLKI/OExternal

26、display CLKExternal display 58OEM DISP DATAI/OExternal display DATAExternal display 59DSIODSI control H: DSI ON, L: DSI OFF TDF DET=blink when H 60RESET- 61NC- 62PON FLOVFD power supply ON H: ON, L: OFF L: When TDF DET is H, H: When TDF DET is L MICROCOMPUTERS TERMINAL DESCRIPTION KDC-232MR 6 Pin No

27、.Pin NameI/OApplication Truth Value Processing/Operation/Description Table 63KEY REQICommunication request from VFD driverL: Key input 64RDS CLKIRDS decoder CLK input 65REMOIRemote control input 66LX REQ SICommunication request from slave unit 67VSS0- 68VDD1- 69,70X2,X1- 71TEST- 72,73XT2,XT1- 74VDD0

28、- 75AVDD- 7678TYPE 31IDestination switchingtRefer to the truth value table 79RDS NOISEITuner Quality (Noise) input 80TUNER SMETERITuner S meter input MICROCOMPUTERS TERMINAL DESCRIPTION TRUTH VALUE TABLE t DESTINATION TYPE 3TYPE 2TYPE 1DESTI MODEL (pin 76)(pin 77)(pin 78)NATION 000K KDC-232MR/MP2032

29、/ MP232 001EKDC-W4534/Y 010M KDC-MP4033/MP4033S/ MP4533 011- 100- 101- 110- 111- r CD MECHA CONTROL OPERATION CD LOEJCD MOTORCD MECHA OPERATION LHLoad HHEject Hi-ZLStop Hi-ZHBrake w RDS AFSL (AF search) Normal condition communication (IC10 side : High) High(Quality time constant long / Stereo Decode

30、r PLL : Not hold) Low AF search (IC10 side : Middle) (Quality time constant short / Stereo Decoder PLL : Hold) e POWER SUPPLY IC (IC3) CONTROL SEL1 (Pin No. 11) PS1-2PS1-3PS2-1ILLUMIP-CONP-ANT LLLOFFOFFOFF LLHONOFFOFF HLHONONOFF HHHONONON SEL2 (Pin No. 12) PS1-1PS2-2AUDIOSW5AM LLOFFOFFOFF HLONONOFF

31、HHONONON q TUNER TYPE ModelTYPE 1TYPE 2 KENWOOD brand model (initial value)LL OEM model (with CRSC changed)LH KENWOOD brand model (with CRSC changed)HL KENWOOD brand model (to support test-driving in EU)HH KDC-232MR 7 MICROCOMPUTERS TERMINAL DESCRIPTION CD MECHANISM -COM : IC2 on X32- (CD PLAYER UNI

32、T) Pin No.Pin NameI/OApplicationProcessing Operation 1TVDOTraverse drive output (PWM output). 2SPLOSpindle motor drive output (PWM output). 3NC-No connection. 4PWMOMultipurpose PWM output. 5TBALOTracking balance adjustment output (PWM output). 6FBALOFocusing balance adjustment output (PWM output). 7

33、NRFDETIRF detection signal input.L : Detection 8OFTIOff-tracking signal input.H : Detection 9BDOIDrop-out signal input.H : Detection 10LDONOLaser-on signal output.H : Focus ON 11DSLBODSL balance output. 12DVDD1-Power supply for digital circuit. 13DVSS1-GND for digital circuit. 14AVSS2-GND for analog

34、 circuit.For DSL, PLL and A/D converter 15DSLFI/OLoup filter for DSL and bias output for ARF. 16ARFIRF signal input. 17RFSWIDSL circuit time constant switch. 18PLLFI/OLoup filter for PLL. 19PLLF2I/OLoup filter character switch for PLL. 20IREFIReference current input. 21RFENVIRF envelope signal input

35、. 22TRCRSITracking cross signal input. 23TEITracking error signal input. 24FEIFocusing error signal input. 25AVDD2-Power supply for analog circuit.For DSL, PLL and A/D converter 26AVSS1-GND for analog circuit.For Lch/Rch audio output 27OUTRORch audio output. 28AVDD1-Power supply for analog circuit.F

36、or Lch/Rch audio output 29OUTLOLch audio output. 30DVSS3-GND for digital circuit. 31CSEL- 32NC-No connection. 33ASEL- 34MSEL0- 35MSEL1- 3639NC-No connection. 40VREFP-Reference power supply input for A/D converter. 41HOT- 428EJE SW- KDC-232MR 8 MICROCOMPUTERS TERMINAL DESCRIPTION Pin No.Pin NameI/OAp

37、plicationProcessing Operation 4312EJE/SDET SW- 44LOE/LIM SWI Loading-end detection /H : Loading-end detection Pick-up inner circumference detection.L : Pick-up inner circumference detection 4549NC-No connection. 50DVDD2-Power supply for digital circuit. 51X1IMain clock input. 52X2OMain clock output.

38、 53DVSS2-GND for digital circuit. 54XSUB1- 55NC-No connection. 56TEST1-Test terminal.Normal condition : “H” fixed 57TEST2-Test terminal.Normal condition : “H” fixed 58,59NC-No connection. 60DRV MUTEODriver mute control.L : Mute ON, H : Mute OFF 61MUTE LOAudio Lch mute output. 62MUTE ROAudio Rch mute

39、 output. 63RSTILSI reset input. 64OCD CLK- 65MSTOPIStandby detection. 66DATAI/OI2C bus data line (Communication line to system -com).During serial writer is connected. 67SBIOIData input.During serial writer is connected. 68CLKI/OI2C bus clock line (Communication line to system -com).During serial wr

40、iter is connected. 69TXODigital audio interface signal output. 70NC-No connection. 71XSEL- 72MCNTILoading control / Eject control.L : OFF (Host control), H : Mecha -com control 73P. ONOAudio & Servo power supply control.L : Power supply ON. H : Power supply OFF 74,75NC-No connection. 76CD-RWOCD-RW c

41、ontrol.H : CD-RW, L : Normal disc 77NC-No connection. 78DVDD3-Power supply for digital circuit. 79FODOFocusing drive output (PWM output). 80TRDOTracking drive output (PWM output). KDC-232MR 9 How to enter the test mode Press and hold the 1 and 3 keys and reset. (While “ ” is being displayed, power c

42、an be ON for 30 minutes.) How to clear the test mode Reset. (Not cancelled by Power OFF or ACC OFF.) Test mode default condition Source is STANDBY. Display lights are all turned on. The volume is at -10dB (The display is 30). LOUD is OFF. CRSC is off regardless of the availability of switching func-

43、 tion. SYSTEM Q is NATURAL (=FLAT). BEEP always functions when the key is pressed while in sources other than STANBY. Specification of test mode for tuner K3I forced switching 6 key in TUNER mode switches AUTO forced narrow forced middle forced wide. When K3I AUTO, if PTY dot is off, filter value re

44、ad from FAST4 is displayed. If force-set, PTY dot is lit and the set- ting value is displayed. (“Forced/AUTO” is determined by the PTY dot being on or off.) Wide: “FMW 98.1” Middle: “FMM 98.1” Narrow : “FMN 98.1” CD receiver test mode specification Display mode default setting shall be P-TIME. Force

45、d ejection is prohibited while reset-starting. Note that CD is not to be recognized by reset while it is inserted. Jumps to the next tracks by pressing the key. No.9 No.15 No.10 No.11 No.12 No.13 No.22 No.14 No.9 (Recursive) Note that when playing a MP3 / WMA / AAC disc with 8 files or less, the dis

46、c is played from the 1st track in the regular order. Pressing the key goes back by 1 track from the track being played. When CD is the source, press the 1 key to jump to No.28. When CD is the source, press the 2 key to jump to No.14. When CD is the source, press the 6 key to jump to No.15. At this t

47、ime, the volume value is set to 25. AUDIO adjust mode Press the AUD key and enter the audio adjustment mode. Press the remote control key and AUD key to go into the audio adjustment mode. Both AUDIO FUNCTION MODE and SETUP MODE ad- justment items are included. By pressing AUD and FM keys, switch the

48、 item to be ad- justed in the following order. (Only in forward rotation) The default item shall be Fader, and then the item is for- warded in the following order: Balance Bass Level Middle Level Treble Level. Continuous forwarding by remote control is prohibited. Fader is adjusted by the VOL knob a

49、nd / keys in 3 steps: R15 0 F15. (Default value: 0) Balance is adjusted by the VOL knob and / keys in 3 steps: L15 0 R15. (Default value: 0) Bass/Middle/Treble are adjusted by the VOL knob and / keys in 3 steps: -8 0 +8. (Default value: 0) Volume Offset is adjusted by the VOL knob and / keys in 2 steps: -8 0. (Default value: 0) Loudness ON/OFF is adjusted by the VOL knob and / keys in 2 steps: OFF ON. (Default value: OFF) MENU Press Q key to enter the MENU. Press the remote control DNPP/SBF key to enter the MEN