Kenwood-KDC-232-MR-Service-Manual电路原理图.pdf

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1、 2005-11 PRINTED IN JAPANB53-0344-00 (N)600CD RECEIVERKDC-232MRSERVICE MANUALPanel assy(A64-3804-02)SPARE TDF PANELMAIN UNIT NAME TDF PARTS No. TDF NAMEKDC-232MR Y33-2410-62 TDF-62DMRMounting hardware assy(J21-9716-03)Lever(D10-4589-04) x2DC cord(E30-6415-15)Screw set(N99-1757-05)Escutcheon(B07-3123

2、-01)VOLAUDFFSET UPSCAN RDM REPKDC-232MRAUTOFMAMQAME MENU M.RDMSCRL/C.S.Carrying case(W01-1661-05)Screw (4x16)(N84-4016-48)This product uses Lead Free solder.KDC-232MR2BLOCK DIAGRAMCDCHANGERJ2TUNER,MPXIC10&AM AGCQ501FM AGCL506J4E-VOL.IC11E2PROMSYSTEM u-COMIC1IC7RDSDECODERRST ICIC8PRE OUT MUTEQ351,352

3、IC4POWER ICMUTE LOGICIC6J1PAN5VQ151Q72SERVOVFD REGIC15POWER SUPPLY ICIC3ED1VFDwithVFD DRIVERIC1REMOTEIC3VOLS11KEY MATRIXDSIQ155ACC DETBU DETQ53Q52Q51SURGE DETP-CONTEL MUTEBACK-UPSP OUTP-ANTACCPRE OUTTEL MUTEC81,D81,Q82DME1SERVOA8VBU5VAUDIO OUTAM+BANTMPX OUTMPX IN800mV1200mVAUDIO OUTBU5VA8VBACKPAN5SE

4、RVOP-ANTSW5VAM+BA8VBU5VP-CONSW5VAM+BAUDIO+BVCCILLUMIBU5VILLUMIPAN5V BU5VKEY:CHANGERCDFM (E Type)FM (J/K Type)AM (J/K Type)AM (E Type): 1800mV1372mV600mV855mV3600mV3600mVELECTRIC UNIT (X34-)SWITCH UNIT (X16-)7VREFL-chR-chA. GNDA8VD. GNDBU5VLOE/LIM SW12EJE SWLOS SWS7.5VLO/EJMOTORS. GNDVREFVREF224DRV M

5、UTEMUTEDOUTDATA42CLKMSTOPMRSTMUTE LMUTE R22 HL125243202113151149768181211102219EFACBTR COILFO COILAPCSERVOu-COMIC2Q116.934MHzCLOCKX1DRIVERMOTORIC3PROCESSORLPFIC48V SWQ4Q3SWS3S1S2D. GNDRF AMPIC1REF5V REGD2S. GNDA. GNDD. GNDSLEDLOADING5V SWQ2D. GNDD. GNDLOADING & SLEDMOTORSPINDLE MOTORAMPQ5,6,D3CURR.D

6、M1DM2SW +5VA+5VPICK-UP (DPU1)CD PLAYER UNIT (X32-5750-00)BOARD (X34-)MOTHERMECHA ASSY (X92-)KDC-232MR3 ELECTRIC UNIT (X34-4160-12)Ref. No. Application / Function Operation / Condition / CompatibilityIC1 System -COM System controller.IC3 Power Supply IC DC5Vx2, 7.9Vx1, 8.1Vx1, 10.2Vx1, P-CON, P-ANT o

7、utput.IC4 Power IC Signal amplifier.IC6 Mute logic IC Controls for mute action.IC8 Reset IC “L” : detection voltage below 3.6V.IC10 E-VOL & Tuner E-VOL, Tuner, Stereo decoder.IC11 E2PROM Saves & Loads for tuner adjustment data.IC15 Regulator IC Outputs 11.3V for LED and VFD.Q51 Serge Det. ON when th

8、e base goes “Hi”.Q52 B.U. Det. ON when the base goes “Hi” during BU applied.Q53 ACC Det. ON when the base goes “Hi” during ACC applied.Q71 Control SW for SERVO+B ON when the base goes “Hi”.Q72 SERVO+B AVR Outputs voltage 7.5V.Q151 Panel 5V SW ON when the base goes “Lo”.Q155 DSI ILLUMI SW ON when the

9、 base goes “Lo”.Q252 STANDBY SW for IC4 ON when the base goes “Lo”.Q330 Mute driver for Q351, Q352 ON when the base goes “Lo”.Q351 Mute SW for Lch PRE OUT Audio pre-output is muted when the base goes “Hi”.Q352 Mute SW for Rch PRE OUT Audio pre-output is muted when the base goes “Hi”.Q501 AM RF Ampli

10、fier Adjusts for Gain. SWITCH UNIT (X16-3500-11)Ref. No. Application / Function Operation / ConditionIC1 VFD DRIVERQ21 PAN SW5V “ON” when the base goes “H”. CD PLAYER UNIT (X32-5750-00)Ref. No. Application / Function Operation / ConditionGeneration of RF signal based on the signals from the APC circ

11、uit and pickup, andIC1RF AMPLIFIER responding generation of servo error (focusing error and tracking error) signals.to CD-RW Detection of dropout, anti-shock, track crossing and off-tracking conditions, includedgain control function during CD-RW.Focusing, tracking, sled and spindle servo processing.

12、IC2CD SIGNAL PROCESSOR Automatic adjustment (focusing, tracking, gain, offset and balance) operations.built-in -COM Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio datainterpolation processing) operations, and microcomputer function.IC3 4ch BTL DRIVERFocusing coil, track

13、ing coil, spindle motor and sled motor driver, disc loading andeject operation.IC4 L.P.F. (LOW PASS FILTER) 2nd low pass filter for audio signals.Q1 APC (AUTOMATIC POWER CONTROL) LD power control.Q2 DIGITAL +5V SW “ON” When P. ON signal goes “L”.COMPONENTS DESCRIPTIONKDC-232MR4Ref. No. Application /

14、 Function Operation / ConditionQ3 Q4 SW “ON” When P. ON signal goes “L” (SW+5V is ON).Q4 ANALOG +8V SW “ON” When P. ON signal goes “L” (Q3 is ON).Q5, 6 CURRENT AMP Current driver.COMPONENTS DESCRIPTIONMICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM -COM : IC1 on X34- (ELECTRIC UNIT)Pin No. Pin Name I/O A

15、pplicationTruth ValueProcessing/Operation/DescriptionTable1 DCERR I DC offset error detection input2 LINE MUTE I Phone detectionTEL mute: 1V or lowerNAVI mute: 2.5V or higher3ROTARY CW I Rotary encoder input4AVSS -5 TUNER TYPE1 I E-VOL setting switching q Refer to the truth value table6 TUNER TYPE2

16、I E-VOL setting switching q Refer to the truth value table7AVREF1 -8 VFD DATAF I Data input from VFD driver9 VFD DATAS O Data output to VFD driver10 VFD CLK O CLK output to VFD driver11 VFD RST O Reset output to VFD driverL: Display off, key reset, panel detachedH: Display on, key scan12 VFD CE O CE

17、 output to VFD driver13 ROTARY CCW I Rotary encoder input14 TDF DET I Panel detection H: Panel detached, L: Panel attached15 PWIC BEEP O Beep output16 LX DATA S I Data from slave unit17 LX DATA M O Data to slave unit18 LX CLK I/O LX-BUS clock19 RDS AFSL O Tuner RDS mute output w Refer to the truth v

18、alue tableADJ=H20 TUNER ADJ I For IC10 adjustment PS1-1, 2=L PS1-3=Hi-Z, PS2-1, 2=Hi-ZTuner data, CLK=Hi-Z21 TUNER SD I Tuner search stop input H: Station found, L: Station not foundKDC-232MR5Pin No. Pin Name I/O ApplicationTruth ValueProcessing/Operation/DescriptionTable22 LX RST O Forced reset to

19、slave unit H: Reset, L: Normal23 LX CON O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF24 LX REQ M O Communication request to the slave unit25 AUD SDA I/O E-VOL and tuner I2C data input/output26 AUD SCL I/O E-VOL and tuner I2C CLK output27 PWIC STBY O Power IC STBY output H: Pow

20、er IC ON, L: Power IC OFF28 VOL MUTE O E-VOL mute output L: Mute OFF, Hi-Z: ON29 PWIC MUTE O Power IC mute output L: Power OFF, STANDBY, or TEL mute.30 TUNER FANC OUT O Tuner block (in -com) check L: E2P OK, H: NG31 RESET2 O Mute for reset Output L32 RDS DATA I RDS decoder data input33 VSS1 -34 RDS

21、QUAL I RDS decoder QUAL input35 ACC DET I ACC detection L: ACC ON, H: ACC OFF36 BU DET I Momentary power down detectionL: BU found,H: BU not found (momentary power down)37 PON I/O SW5V/SW14V control L: ON, Hi-Z: OFF38 PS2-2 O Power Supply control output 2-2 e Refer to the truth value table39 PS2-1 O

22、 Power Supply control output 2-1 e Refer to the truth value table40 PS1-1 O Power Supply control output 1-1 e Refer to the truth value table41 PS1-2 O Power Supply control output 1-2 e Refer to the truth value table42 PS1-3 O Power Supply control output 1-3 e Refer to the truth value table43 NC -44

23、PON CD I/O Power supply control for MP3 L: ON, Hi-Z: OFF45 CD MUTE I CD mute request L: Mute request46 CD MSTOP O CD mechanism -com stopH: Mechanism -com in operation,L: Mechanism -com stopped47 CD LOE LIM SW I CD detection (chucking SW) H: Loading completed, L: Disc not found48 CD LOEJ I/O CD motor

24、 control r Refer to the truth value table49 CD MOTOR O CD motor control r Refer to the truth value table50 NC -51 CD MRST O CD mechanism -com reset H: Normal, L: Reset52 CD SCL I/O CD mechanism I2C clock output53 CD DISC12 SW I 12cm disc detection54 CD LOS SW I CD loading detection55 CD SDA I/O CD m

25、echanism I2C clock input/output56 OEM DISP CE I/O External display CE External display57 OEM DISP CLK I/O External display CLK External display58 OEM DISP DATA I/O External display DATA External display59 DSI O DSI controlH: DSI ON, L: DSI OFFTDF DET=blink when H60 RESET -61 NC -62 PON FL O VFD powe

26、r supply ONH: ON, L: OFFL: When TDF DET is H, H: When TDF DET is LMICROCOMPUTERS TERMINAL DESCRIPTIONKDC-232MR6Pin No. Pin Name I/O ApplicationTruth ValueProcessing/Operation/DescriptionTable63 KEY REQ I Communication request from VFD driver L: Key input64 RDS CLK I RDS decoder CLK input65 REMO I Re

27、mote control input66 LX REQ S I Communication request from slave unit67 VSS0 -68 VDD1 -69,70 X2,X1 -71 TEST -72,73 XT2,XT1 -74 VDD0 -75 AVDD -7678 TYPE 31 I Destination switching t Refer to the truth value table79 RDS NOISE I Tuner Quality (Noise) input80 TUNER SMETER I Tuner S meter inputMICROCOMPU

28、TERS TERMINAL DESCRIPTIONTRUTH VALUE TABLEt DESTINATIONTYPE 3 TYPE 2 TYPE 1 DESTIMODEL(pin 76) (pin 77) (pin 78) NATION000KKDC-232MR/MP2032/MP232001EKDC-W4534/Y010MKDC-MP4033/MP4033S/MP4533011-100-101-110-111-r CD MECHA CONTROL OPERATIONCD LOEJ CD MOTOR CD MECHA OPERATIONLH LoadHH EjectHi-Z L StopHi

29、-Z H Brakew RDS AFSL (AF search)Normal condition communication (IC10 side : High)High (Quality time constant long / Stereo Decoder PLL : Nothold)LowAF search (IC10 side : Middle)(Quality time constant short / Stereo Decoder PLL : Hold)e POWER SUPPLY IC (IC3) CONTROLSEL1 (Pin No. 11)PS1-2 PS1-3 PS2-1

30、 ILLUMI P-CON P-ANTLLLOFF OFF OFFLLHONOFF OFFHLHONONOFFHHHONONONSEL2 (Pin No. 12)PS1-1 PS2-2 AUDIO SW5 AMLLOFF OFF OFFHLONON OFFHHONON ONq TUNER TYPEModel TYPE 1 TYPE 2KENWOOD brand model (initial value) L LOEM model (with CRSC changed) L HKENWOOD brand model (with CRSC changed) H LKENWOOD brand mod

31、el (to support test-driving in EU) HHKDC-232MR7MICROCOMPUTERS TERMINAL DESCRIPTION CD MECHANISM -COM : IC2 on X32- (CD PLAYER UNIT)Pin No. Pin Name I/O Application Processing Operation1 TVD O Traverse drive output (PWM output).2 SPL O Spindle motor drive output (PWM output).3NC-No connection.4 PWM O

32、 Multipurpose PWM output.5 TBAL O Tracking balance adjustment output (PWM output).6 FBAL O Focusing balance adjustment output (PWM output).7 NRFDET I RF detection signal input. L : Detection8 OFT I Off-tracking signal input. H : Detection9 BDO I Drop-out signal input. H : Detection10 LDON O Laser-on

33、 signal output. H : Focus ON11 DSLB O DSL balance output.12 DVDD1 - Power supply for digital circuit.13 DVSS1 - GND for digital circuit.14 AVSS2 - GND for analog circuit. For DSL, PLL and A/D converter15 DSLF I/O Loup filter for DSL and bias output for ARF.16 ARF I RF signal input.17 RFSW I DSL circ

34、uit time constant switch.18 PLLF I/O Loup filter for PLL.19 PLLF2 I/O Loup filter character switch for PLL.20 IREF I Reference current input.21 RFENV I RF envelope signal input.22 TRCRS I Tracking cross signal input.23 TE I Tracking error signal input.24 FE I Focusing error signal input.25 AVDD2 - P

35、ower supply for analog circuit. For DSL, PLL and A/D converter26 AVSS1 - GND for analog circuit. For Lch/Rch audio output27 OUTR O Rch audio output.28 AVDD1 - Power supply for analog circuit. For Lch/Rch audio output29 OUTL O Lch audio output.30 DVSS3 - GND for digital circuit.31 CSEL -32 NC - No co

36、nnection.33 ASEL -34 MSEL0 -35 MSEL1 -3639 NC - No connection.40 VREFP - Reference power supply input for A/D converter.41 HOT -42 8EJE SW -KDC-232MR8MICROCOMPUTERS TERMINAL DESCRIPTIONPin No. Pin Name I/O Application Processing Operation43 12EJE/SDET SW -44 LOE/LIM SW ILoading-end detection / H : L

37、oading-end detectionPick-up inner circumference detection. L : Pick-up inner circumference detection4549 NC - No connection.50 DVDD2 - Power supply for digital circuit.51 X1 I Main clock input.52 X2 O Main clock output.53 DVSS2 - GND for digital circuit.54 XSUB1 -55 NC - No connection.56 TEST1 - Tes

38、t terminal. Normal condition : “H” fixed57 TEST2 - Test terminal. Normal condition : “H” fixed58,59 NC - No connection.60 DRV MUTE O Driver mute control. L : Mute ON, H : Mute OFF61 MUTE L O Audio Lch mute output.62 MUTE R O Audio Rch mute output.63 RST I LSI reset input.64 OCD CLK -65 MSTOP I Stand

39、by detection.66 DATA I/O I2C bus data line (Communication line to system -com). During serial writer is connected.67 SBIO I Data input. During serial writer is connected.68 CLK I/O I2C bus clock line (Communication line to system -com). During serial writer is connected.69 TX O Digital audio interfa

40、ce signal output.70 NC - No connection.71 XSEL -72 MCNT I Loading control / Eject control. L : OFF (Host control), H : Mecha -com control73 P. ON O Audio & Servo power supply control. L : Power supply ON. H : Power supply OFF74,75 NC - No connection.76 CD-RW O CD-RW control. H : CD-RW, L : Normal di

41、sc77 NC - No connection.78 DVDD3 - Power supply for digital circuit.79 FOD O Focusing drive output (PWM output).80 TRD O Tracking drive output (PWM output).KDC-232MR9 How to enter the test modePress and hold the 1 and 3 keys and reset.(While “ ” is being displayed, power can be ON for 30minutes.) Ho

42、w to clear the test modeReset. (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-tion. SYSTEM Q is NATURAL (=F

43、LAT). BEEP always functions when the key is pressed while insources other than STANBY. Specification of test mode for tunerK3I 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 read fromFAST4 is displayed. If fo

44、rce-set, PTY dot is lit and the set-ting value is displayed. (“Forced/AUTO” is determined bythe 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.Forced ejection is prohibited while reset-

45、starting. Note thatCD 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 8files or less, the disc is played from the 1st track in theregul

46、ar order. Pressing the key goes back by 1 track from the trackbeing 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 time, the volume value is set to 25. AUDIO adj

47、ust mode Press the AUD key and enter the audio adjustment mode.Press the remote control key and AUD key to go intothe audio adjustment mode. Both AUDIO FUNCTION MODE and SETUP MODE ad-justment items are included. By pressing AUD and FM keys, switch the item to be ad-justed in the following order. (O

48、nly 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 and / keys in3 steps: R15 0 F15. (Default value: 0) B

49、alance is adjusted by the VOL knob and / keysin 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. Pres