Kenwood-KDCX-469-Service-Manual电路原理图.pdf
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1、KDC-X469OFFNF-+DABF.SEL M.RDMREPSCAN RDMAUDC.S.MENUNAME.SDISPAUTOAME Front glass(B10-4307-01 : KDC-X469)Panel assy(A64-2827-02 : KDC-X469)KDC-6024OFFNF-+DABF.SEL M.RDMREPSCAN RDMAUDPTYMENUNAME.SDISPTIGSM Front glass(B10-4313-01 : KDC-6024/6024Y)Panel assy(A64-2837-02 : KDC-6024/6024Y )Escutcheon(B07
2、-3022-02)(B07-3075-02) Plastic cabinet assy(A02-1486-13)Mounting hardware assy(J21-9716-03)DC cord(E30-4944-05)(E30-4958-05)Antenna adaptor(T90-0523-05)Screw set(N99-1730-15)Lever(D10-4589-04)Depends on model. Refer to the parts list.DC cord(E30-4939-05)Remote controller assy(RC-505)(A70-2040-05)Scr
3、ew set(N99-1719-15)Not suppliedCD MECHANISM OPERATION DESCRIPTION is not in this sevice manual.Please refer to service manual for X92-4450-0X (B51-7889-00).CD mechanism extension cord (24PIN) : W05-0934-00 2003-1 PRINTED IN JAPANB53-0026-00 (N)3114CD RECEIVERKDC-6024/YKDC-X469SERVICE MANUALKDC-6024/
4、Y/X4692BLOCK DIAGRAMBUFFERQ101RDSDECODERIC7Q201BUFFEREEPROMIC10IC1(V-ILL ONLY)DA CONVERTERIC3IC2REMOCONRESET SWENCODERROTARYS24WITHLCD DRIVERKEY MATRIXIC1LCDPANEL DETS1EJECT SWS1EJECT ILLUMIDSIu-COMIC2MPXE-VOL&EXT AMPDIMMERACC DETTEL MUTEB.U DETPRE MUTEPRE MUTEPRE MUTEDRIVERMUTEIC6POWERICIC4THERMALP
5、ROTECTPRE OUT(REAR/NF)EXT.AMP.CONDIMMERACCTEL MUTEBACK UPAUX IN(REAR) 3PREPRE OUT(FRONT)PRE OUTSP OUTSURGE DETSW REGCD MECHA+BSERVOSERVO+B SW 14VQ21IC9OPEL DISP I/FWIRED REMO/SUPPLYICIC3POWER ANT DETP CONRESETIC8SW 5VQ4PANEL 5VQ152SW5VS-METERAUDIO OUTIFC OUTPLL-DATAPLL-CLKSW5VAM+BA8VSW3SW2SW1MS CLKM
6、S DATAM MUTE LSW4M MUTE RLO/EJM STOPMOSWM RSTSERVO+BA8VBU5VCD MECHA+BDATA CCH MUTECH RSTREQ HREQ CCH CLKCH-CONDATA HBUCK UPNOISEQUALS-METERRDATAR CLKFMAMMP INLEVELCDQUALAFSCHSW5VSW5VBU5VPANEL DETEJECT DSI L CLKLDATASL CE LDATALVOL AVOL BREMO VDATAV CLK O-CEO-DATAO-CLKPRE MUTEMUTEP-MUTEEXT.AMP.CONDIM
7、MERPHONEACC DETB.U DETBEEPPS1-0PS1-1PS1-2PS2-0PS2-2RSTFREEREARFRONTBU5VBUCK UPA8VAUXSW5VBACK UPAM+BFM+BILLUMIA8VBU5VBU5VBU5VTUNERCDEX.CHSWITCH UNIT (X16- )DAUGHTER UNIT(X89- )KDC-6024/Y/X4693COMPONENTS DESCRIPTIONa71 CD PLAYER UNIT (X32-5200-00)Ref.No. Component Name Application/Functions Operation/
8、Condition/CompatibilityIC1 AN22002AA RF amplifier adapted for CD-RW Generation of RF signal based on the signals from the APC circuit and pickup, and generation of servo error (focusing error and tracking error) signals. Detection of dropout, anti-shock, track crossing and off-track conditions, incl
9、uded gain control function during CD-RW.IC2 MN6627774KH2 CD signal processor built-in MI-COM Focusing, tracking, sled and spindle servo processing. Automatic adjustment (focusing, tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, a
10、udio data Interpol ration) operations, and Microcomputer function.IC4 BA5824FP 4CH BTL driver Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and eject operation.IC6 NJM4580M1 Low pass filter 2nd low pass filter for audio signalsQ1 MCH6101 APC LD power controlQ2 DTC12
11、4EUA D.5V SW When P ON signal gose“L“, Q2 is ONQ3 DTA143XUA Q4 SW When P ON signal gose“L“ (SW+5V AVR is ON), Q3 is ONQ4 2SA1362(Y) A.8V SW When P ON signal gose“L“ (Q3 is ON), Q4 is OND1 DAN202U Protection diode Laser diode protectionD2 MA8051-L Zener diode DAC AVR/LPF reference voltage (A.5V)D3 DA
12、204U Current driver Current drivera71 ELECTRIC UNIT (X25-9712-71/9800-10/9802-71)Ref.No. Component Name Application/Functions Operation/Condition/CompatibilityIC1 UPD703030GC013 System microcomputer Control for TUNER unit, CD mechanism, volume & tone, LCD driver and external CD changer unitIC2 TDA74
13、11 Electronic volume & N.C.MPX Control for source selector, volume & tone, and FM multiplex detector.IC3 BA4911-V4 Power supply IC Power supply for the units (Bu5V, Audio8V, FM+B, AM+B, P-con and ANT-con).IC4 TA8273H Audio power amp IC Amplifier for audio signal to derive for 4channel speakers (50W
14、maximum for each channel).IC6 HD74HC27FP Muting control IC Control for timing for mute.IC7 SAA6581T RDS decoder Decode for RDS signal.IC8 PST3436UL Reset IC When detection voltage goes below 3.5V or less Reset IC output change to “L“ signal.Q1 2SC4081 Serge detection When backup voltage become more
15、than 24V output is “L“ (momentary power down) / When backup voltage become less than 24V output is “H“.Q2 2SC4081 Backup detection When BU voltage supplied output is “L“ / When BU voltage not supplied or momentary power down is detected output is “H“.Q3 2SC4081 ACC detection When ACC voltage supplie
16、d output is “L“.Q4 2SA1036K SW 5V When base voltage is “L“ Q4 is ON. Q21 2SD2375 AVR Servo regulator.Q22 UMC2N SW Servo SW.Q23 UMC2N IC control Power supply IC controller.Q31 UN5213 Dimmer control When base voltage is “H“ dimmer is ON. Q32 DTA123JK EXT. AMP control Control to EXE.AMP for pulse width
17、 signal. SW1 OUT1.5-3.0V Audio ON3.5-5.0V Audio, P-con ON7.0V- Audio, P-con, P-ant ONSW22.0-3.0V Illumination, FM ON4.0V- Illumination, AM ONKDC-6024/Y/X4694COMPONENTS DESCRIPTIONRef.No. Component Name Application/Functions Operation/Condition/CompatibilityQ101 UN5216 Buffer amp COMPOSITE SIGNAL BUF
18、FER.Q151 UN5114 DSI driver When base voltage level is “L“ DSI LED is light up / When base voltage level is “H“ DSI LED turns off / When panel assy is pull off, cut off the supply to panel 5V AVR. Q152 2SA1576A Panel 5V SW When panel assy attached to the unit, Q152 base goes “L“ and supply to panel 5
19、V AVR to panel assy .Q153 UN5213 Illumination control When Q153 base voltage to “H“, illumination is light up.Q154 2SA1577 Illumination control When Q153 base voltage to “H“, illumination is light up.Q201 UN5216 Buffer amp Noise buffer amp.Q350 UN5112 Pre & NF mute SW When base voltage to “L“, drive
20、 to pre & NF mute SW(Q351,355,357).Q351 UN5216 Pre mute SW When base voltage to “H“, muting to the pre Lch or NF Lch line.Q352 UN5216 Pre mute SW When base voltage to “H“, muting to the pre Rch or NF Rch line.Q354 UN5112 Pre & NF mute SW When base voltage to “L“, drive to pre & NF mute SW(Q32,356,35
21、8).Q355 UN5216 Pre mute SW When base voltage to “H“, muting to the front Lch line.Q356 UN5216 Pre mute SW When base voltage to “H“, muting to the front Rch line.Q357 UN5216 Pre mute SW When base voltage to “H“, muting to the rear Lch line.Q358 UN5216 Pre mute SW When base voltage to “H“, muting to t
22、he rear Rch line.a71 SWITCH UNIT (X16-2020-10/12/2222-70)Ref.No. Component Name Application/Functions Operation/Condition/CompatibilityIC1 LC75808W LCD driver Drive for LCD unit.IC2 PNA4S22M Remote control IC Receiving for the remote control unit.Q1 2SC4081 VLCD AVR When base voltage level goes 7.9V
23、 Q1 is ON.Q2 DTA114EUA Remo. ON SW When base voltage level goes “L“ the power supply IC2 is turned “ON“.Q3 2SC4081 key illumination SW Lights up for green key illumination when base voltage level goes “H“.Q4 2SC4081 key illumination SW Lights up for red key illumination when base voltage level goes
24、“H“.Q5 2SC4081 Dimmer control SW Lights up for LCD back light when base voltage level goes “H“.KDC-6024/Y/X4695MICROCOMPUTERS TERMINAL DESCRIPTIONPin No. Name I/O Description/Processing Operation1 PLL CLK O CLK output terminal to Front End2 N.C - Open3 PANEL DET I Panel assy detect terminal ( Panel
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