Kenwood-KDC-233-Service-Manual电路原理图.pdf

© 2005-9 PRINTED IN JAPANB53-0326-00 (N)1699CD RECEIVERKDC-1032KDC-132/CRKDC-133/233KDC-234SGYSERVICE MANUALPanel assyKDC-1032 (A64-3771-02)Panel assyKDC-132 (A64-3770-02)Panel assyKDC-132CR (A64-3854-02)Panel assyKDC-133 (A64-3774-02)Panel assyKDC-233 (A64-3775-02)Mounting hardware assy(J21-9716-03)Lever(D10-4589-04) x2* DC cord(E30-6415-15)* Screw set(N99-1757-05)* Escutcheon(B07-xxxx-xx)VOLAUDFFSET UPCRSC SCAN RDM REP/AUTOAMECRSCVOLAUDFFSET UPSCAN RDM REP/AUTOAMEVOLAUDFFSET UPMONO SCAN RDM REP/AUTOAMECRSCVOLAUDFFSET UPSCAN RDM REP/AUTOAMECRSCVOLAUDFFSET UPSCAN RDM REP/AUTOAME/AUTOAMEVOLAUDFFSET UPSCAN RDM REPCRSCPanel assyKDC-234SGY (A64-3773-02)SPARE TDF PANELMAIN UNIT NAME TDF PARTS No. TDF NAMEKDC-1032 Y33-2390-60 TDF-61DBKDC-132 Y33-2390-61 TDF-61DKDC-132CR Y33-2390-62 TDF-61DCRKDC-133 Y33-2390-64 TDF-133KDC-233 Y33-2390-63 TDF-233KDC-234SGY Y33-2390-67 TDF-234SG* Carrying case(W01-1661-05)* DC cord(E30-6427-05)* Screw (4x16)(N84-4016-48)* Antenna adaptor(T90-0523-05)* Depends on the model. Refer to the parts list.This product uses Lead Free solder.2KDC-1032/132/132CRKDC-133/233/234SGYBLOCK DIAGRAMMPX INMPX OUTAUDIOP-ANTP-CONAM+BSW5VBU5VILLUMIVCCAUDIO+BOUTKEY ILLUMIFM AGCL506Q501AM AGCDME1CDIC10E-VOL.TUNER,IC6RDSDECODERIC12E2PROMIC11RST ICIC1SYSTEMu-COMQ223,224IC8MUTE LOGICIC4POWERICQ70SURGE DETBU DETQ10ACC DETTEL MUTED30,C30,R30Q20PAN5VDSIDSI ILLUMI +BSERVOQ101Q101Q55Q102LCD DRIVERKEY MATRIXWITHIC1LCDED1SUPPLY ICPOWERIC7MPX &SERVOA8VBU5VMECHABU5VAM+BA8VMUTEPRE OUTSW5VAM+BA8VPAN5VSERVOBU5VPRE OUTSP OUTBACK UPACCTEL MUTEP-ANTP-CONBU5VREMOTEIC2PAN5VVOLS2ANTJ1J2(X16- )(X34- )800mVFM(J,K) : 1800mV: 1372mVFM(E)AM(E)AM(J,K): 855mV: 600mVCDCH: 3600mV: 3600mVEFACBTR COILFO COILAPCSERVOu-COMIC2Q116.934MHzCLOCKX1DRIVERMOTORIC3PROCESSORLPFIC48V SWQ4Q3SWS3S1S2D. GNDRF AMPIC1REF5V REGD2S. GNDA. GNDD. GNDSLEDLOADING5V SWQ2D. GNDD. GNDLOADING & SLEDMOTORSPINDLE MOTORAMPQ5,6,D3CURR.DM1DM2PICK-UP (DPU1)CD PLAYER UNIT (X32-5840-00)BOARD (X34-)MOTHERMECHA ASSY (X92-)7VREFL-chR-chA. GNDA8VD. GNDBU5VLOE/LIM SW12EJE SWLOS SWS7.5VLO/EJMOTORS. GNDVREFVREF224DRV MUTEMUTEDOUTDATA42CLKMSTOPMRSTMUTE LMUTE R22 HL12524320211713151149768181211102219SW +5VA+5V3KDC-1032/132/132CRKDC-133/233/234SGYCOMPONENTS DESCRIPTION ELECTRIC UNIT (X34-419x-xx)Ref. No. Application / Function Operation / ConditionIC1 System µ-COM System controllerIC4 Power IC Signal amplifierIC7 Power supply IC DC5Vx1, 7.9x1, 8.1Vx2, 10.2Vx1, P-CON, P-ANT outputIC8 Mute logic IC Controls for mute operationIC10 E-VOL & Tuner E-VOL, tuner, stereo decoderIC11 Reset IC “L”: detection. Voltage is below 3.6VIC12 E2PROM Saves and loads for tuner adjustment dataQ10 BU detection ON when the base goes “Hi” during BU is appliedQ20 ACC detection ON when the base goes “Hi” during ACC is appliedQ40 Mute driver for PRE OUT ON when the base goes “Lo”Q50 5V SW ON when the base goes “Lo”Q51 Control SW for SERVO+B ON when the base goes “Hi”Q53 Control SW for IC3 ON when the base goes “Hi”. Output voltage is 10.3VQ55 SERVO+B AVR Output voltage is 7.5VQ70 Surge detection ON when the base goes “Hi”Q102 Panel 5V SW ON when the base goes “Lo”Q223 Mute SW for Lch PRE OUT Pre-output is muted when the base goes “Hi”Q224 Mute SW for Rch PRE OUT Pre-output is muted when the base goes “Hi”Q251 IC4 SVR discharge SW ON when the base goes “Hi”Q501 AM RF amplifier Adjusts for gainQ502 FM RF amplifier RF amplifier SWITCH UNIT (X16-356x-xx)Ref. No. Application / Function Operation / ConditionIC1 LCD driverIC2 Remote control sensor KDC-132CR onlyQ1 Key scan start SW ON when the base goes “Lo” DAUGHTER UNIT (X89-2690-10) : KDC-1032 onlyRef. No. Application / Function Operation / ConditionQ221,222 2-PREOUT MUTE ON when the base goes “Hi”Q225 2-PREOUT MUTE ON when the base goes “Hi” CD PLAYER UNIT (X32-5840-00)Ref. No. Application / Function Operation / ConditionGeneration of RF signal based on the signals from the APC circuit 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.4KDC-1032/132/132CRKDC-133/233/234SGYRef. No. Application / Function Operation / ConditionFocusing, tracking, sled and spindle servo processing.IC2CD SIGNAL PROCESSOR Automatic adjustment (focusing, tracking, gain, offset and balance) operations.built-in µ-COM Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio datainterpolation processing) operations, and microcomputer function.IC3 4ch BTL DRIVERFocusing coil, tracking coil, spindle motor and sled motor driver, disc loading andeject operation.IC4 LPF (LOW PASS FILTER) 2nd low pass filter for audio signalsQ1 APC (AUTOMATIC POWER CONTROL) LD power controlQ2 DIGITAL +5V SW ON when P. ON signal goes “Lo”Q3 Q4 SW ON when P. ON signal goes “Lo” (SW+5V is ON)Q4 ANALOG +8V SW ON when P. ON signal goes “Lo” (Q3 is ON)Q5, 6 CURRENT AMP Current driverCOMPONENTS DESCRIPTIONMICROCOMPUTERS TERMINAL DESCRIPTION SYSTEM µ-COM: IC1 on X34- (ELECTRIC UNIT)Pin No. Pin Name I/O Application Truth value table Processing Operation Description1 TDF DET I Panel detection H: Panel detached, L: Panel attached2 8EJE SW IH: Eject completedAlways L-output for models that do not support 8cm CD3NC-Not used (output L)4AVSS -5 L-RST O LCD driver resetH: When panel detached, L: ResetNormally H, L when Power OFF6 L-CE O LCD driver selectH: Select (Panel communication)L-output when panel detached7AVREF1 -8NC-Not used (connected to pin 9)9 IC10-DATA I/O E2PROM communication data for IC10 H for no communication10 IC10-CLK O E2PROM communication clock for IC10 H for no communication11 L-DATAL I Communication data from LCD driverH for no communication, L when panel detachedPull Down at over X3412 L-DATAL O Communication data to LCD driver L-output when panel detached13 L-CLK O Communication clock to LCD driver L-output when panel detached14 R-DATA I Communication data from RDS L-output for models without RDS15 R-QUAL I Communication qualification from RDS L-output for models without RDS1618 NC - Not used (output L)19 FUNC OUT O Function output result H: OK, L: NG5KDC-1032/132/132CRKDC-133/233/234SGYPin No. Pin Name I/O Application Truth value table Processing Operation Description20 NC - Not used (output L)21 AFS O Constant switching for noiseH: Normal, L: FM/AM seek and AF search(L for Tuner SRC Auto Zero)2225 NC - Not used (output L)26 TYPE REF O 5V output for destination setting H: When reading destination27 SD I Tuner SD input H: Staion found28 NC - Not used (output L)29 TYPE2 I Destination 2 q30 TYPE1 I Destination 1 q31 TYPE0 I Destination 0 q32 TUNER-TYPE1 I E-VOL setting switching H: OEM model 1, L: KENWOOD brand model33 VSS1 -34 TUNER-TYPE1 I E-VOL setting switching H: OEM model 0, L: KENWOOD brand model35 MUTE O Mute (E-Vol/Pre) controlH: Mute ON, L: Mute OFFL in 15 seconds after Power OFF36 M-DATA I/O CD mechanism communication data H for no communication37 M-CLK O CD mechanism communication clock H for no communication38 ADJ O Tuner line adjustmentWhen ADJ=H, PS1-0,1=L, PS1-2,2-0,1=Hi-zIC10-DATA, CLK=Hi-z39 P-MUTE O Power IC mute controlL: Mute OFF, L: Mute ONH in 15 seconds after Power OFF40 SVR O Power IC SVR control H: When reduction of power is detected, L: Normal41 P-STBY O Power IC STBY control H: Power IC ON, L: Power IC OFF42 SW5V O SW5V controlH: SW5V OFF, L: SW5V ONH in 10 seconds after Power OFF43 B.U-DET I Back Up detection H: Reduction of power, L: BU found44 ACC-DET I ACC detection H: ACC OFF, L: ACC ON45 PS1-0 OPower IC SW1 control 0(AUDIO8V/P-CON)46 PS1-1 OPower IC SW1 control 1(AUDIO8V/P-CON)47 PS1-2 O Power IC SW1 control 2 (P-ANT)48 PS2-0 O Power IC SW2 control 0 (ILLUMI/FM/AM)49 PS2-1 O Power IC SW2 control 1 (ILLUMI/FM/AM)50 BEEP O Beep51 ENC CCW I Rotary encoder input52 ENC CW I Rotary encoder input53 DSI O DSI control54 LOE/LIM SW I CD mechanism Down & Limit detection H: Chucking detection, L: Normal55 MO SW O CD mechanism motor switching SW H: Loading/Eject/Break, L: PlayMICROCOMPUTERS TERMINAL DESCRIPTION6KDC-1032/132/132CRKDC-133/233/234SGYPin No. Pin Name I/O Application Truth value table Processing Operation Description56 LO/EJ I/O CD mechanism Loading/Eject switching H: Eject, L: Loading57 M-STOP O CD mechanism Stop output H: CD ON, L: Stop58 M-RST O CD mechanism Reset output H: Normal, L: Mechanism reset59 M-MUTE I CD mechanism mute input H: Mute OFF, L: Mute ON60 RESET I System µ-com reset input61 REMO I Remote controller input62 R-CLK I RDS clock input L-output for models without RDS63 NC - Not used (output L)64 LOS SW I CD mechanism Loading SW detection H: No DISC, L: DISC IN (Loading start)65 KEY-REQ IKey input detection H: No key input(Connection with pin 11 L-DATAL) L: Key input (Started to read Edge Key Data)66 8EJE SW I 12cm DISC detection L: 12cm DISC67 VSS0 -68 VDD1 -69 X2 - MAIN Xtal oscillation circuit 4.19MHz Xtal connection70 X1 - MAIN Xtal oscillation circuit 4.19MHz Xtal connection71 IC - TEST72 XT2 - NC Open73 XT1 - VDD VDD connection74 VDD0 -75 AVREF0 -AD converter reference voltage(Connection to pin 80 AVCONT)76 S-METER I S-meter input77 NOISE I NOISE detection (FM)78 PHONE I 2way Mute2.5V or more: NAVI mute, 1.0V or less: TEL muteL-output to the model without Phone mute79 NC - Not used (output L)80 AVCONT O AD reference voltage controlH: When AD converter is usedThe same timing as P. ONMICROCOMPUTERS TERMINAL DESCRIPTIONTruth value tableq DestinationTYPE2 (pin29) TYPE1 (pin30) TYPE0 (pin31) DESTINATION MODEL000KKDC-1032/132/132CR1 -010EKDC-234SGA/334SA/334SAY/334SG/334SGY1 -1001MKDC-132/233110 -1 11JRDT-1117KDC-1032/132/132CRKDC-133/233/234SGYMICROCOMPUTERS TERMINAL DESCRIPTION CD MECHANISM µ-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 connection4 PWM O Multipurpose PWM output5 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 signal output H: Focus ON11 DSLB O DSL balance output12 DVDD1 - Power supply for digital circuit13 DVSS1 - GND for digital circuit14 AVSS2 - GND for analog circuit For DSL, PLL and A/D converter15 DSLF I/O Loup filter for DSL and bias output for ARF16 ARF I RF signal input17 RFSW I DSL circuit time constant switch18 PLLF I/O Loup filter for PLL19 PLLF2 I/O Loup filter character switch for PLL20 IREF I Reference current input21 RFENV I RF envelope signal input22 TRCRS I Tracking cross signal input23 TE I Tracking error signal input24 FE I Focusing error signal input25 AVDD2 - Power 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 output28 AVDD1 - Power supply for analog circuit For Lch/Rch audio output29 OUTL O Lch audio output30 DVSS3 - GND for digital circuit31 CSEL -32 NC - No connection33 ASEL -34 MSEL0 -35 MSEL1 -3639 NC - No connection40 VREFP - Reference power supply input for A/D converter41 HOT -42 8EJE SW -8KDC-1032/132/132CRKDC-133/233/234SGYMICROCOMPUTERS TERMINAL DESCRIPTIONPin No. Pin Name I/O Application Processing Operation43 12EJE/SDET SW -44 LOE/LIM SW ILoading-end detection / H: Loading-end detectionPick-up inner circumference detection L: Pick-up inner circumference detection4549 NC - No connection50 DVDD2 - Power supply for digital circuit51 X1 I Main clock input52 X2 O Main clock output53 DVSS2 - GND for digital circuit54 XSUB1 -55 NC - No connection56 TEST1 - Test terminal Normal condition: “H” fixed57 TEST2 - Test terminal Normal condition: “H” fixed58,59 NC - No connection60 DRV MUTE O Driver mute control L: Mute ON, H: Mute OFF61 MUTE L O Audio Lch mute output62 MUTE R O Audio Rch mute output63 RST I LSI reset input64 OCD CLK -65 MSTOP I Standby detection66 DATA I/O I2C bus data line (Communication line to system µ-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 µ-com) During serial writer is connected.69 TX O Digital audio interface signal output70 NC - No connection71 XSEL -72 MCNT I Loading control / Eject control L: OFF (Host control), H: Mecha µ-com control73 P. ON O Audio & Servo power supply control L: Power supply ON, H: Power supply OFF74,75 NC - No connection76 CD-RW O CD-RW control H: CD-RW, L: Normal disc77 NC - No connection78 DVDD3 - Power supply for digital circuit79 FOD O Focusing drive output (PWM output)80 TRD O Tracking drive output (PWM output)9KDC-1032/132/132CRKDC-133/233/234SGYTEST MODE How to enter the test mode Press Preset 1 and Preset 3 keys simultaneously to re-set the unit. How to clear the test modeReset. (Do not clear by Power OFF and ACC OFF.) Initial conditions of the test mode Source is STANDBY. Displays lights are all turned on. The volume is at -10dB (The display is 30). CRSC is OFF, regardless of whether there are switchingfunctions or not. LOUD is OFF. SYSTEM Q is NATURAL (FLAT). BEEP should always work by pressing a key. Test mode specification for TUNER TUNER (FM) Preset 4 key shall be 98.3MHz. CD receiver test mode specificationsForced discharging operation is prohibited at reset start. Notethat a CD is not to be recognized by reset when it is in-serted.Track up key triggers a jump to the following tracks.No. 9 No. 15 No. 10 No. 11 No. 12 No. 13 No. 22 No. 14 No. 9 (recursive) Track down key moves back to the previous track from thecurrent track. Preset 1 key triggers a jump to No. 28. Preset 2 key triggers a jump to No. 14. (Scan function isinvalid.) Audio adjust mode Pushing the VOL key enters the audio function mode. The initial item is Fader. (FAD BALANCE BASS MID TRE) Use AM/FM key to switching items. Use Seek Up/Down key to switching the adjusted value. Adjust Fader/Balance to three levels (15 0 15) withVolume up/down. (initial value: 0)Adjust Bass/Middle/Treble to three levels (-8 0 +8)with Volume up/down. (initial value: 0) Pressing the VOL key for more than a second enters theaudio setup mode. Use AM/FM key to switching items. Use Seek Up/Down key to switching the adjusted value. Adjust Volume offset to two levels (-8 0). (initial value: 0) Initialize everything with the Track-Up key in the standbysource. Pressing key on the remote controller enters the audioadjustment mode. (Use key to cancel. KDC-132CR only) Continuous feed with a remote controller shall not be used.Pressing a key activates a motion. (KDC-132CR only) Special display when all lights are onThe following information will be displayed by pressing thepreset key when STANDBY indicators are on.1 key Press 1 key. The current des