CD RECEIVER KDC-2023 KDC-2024SA/SG/SYA/SYG KDC-2094YA/YG KDC-222/S KDC-3023 SERVICE MANUAL CD mechanism operation description is not in this sarvice manual. Please, refer to sarvice manual X92-4030-0x (B51-7867-00). Panel assy (A64-2867-02): KDC-222 (A64-2868-02): KDC-222S Escutcheon (B07-3060-02): KDC-222 (B07-3022-02): KDC-222S © 2002-11 PRINTED IN JAPAN B53-0004-00 (N) 3379 CD mechanism extension cord : WO5-0618-00 Panel assy (A64-2870-02): KDC-2023 (A64-2873-02): KDC-3023 Escutcheon (B07-3001-02): KDC-2023 (B07-3022-02): KDC-3023 KDC-222 COMPACT DIGITALAUDIO 45Wx4 COMPACT DIGITAL AUDIO KDC-XXXX CD MD-Changer Control 50Wx4 CRSC LOUD SCAN RDM REP CLK ADJ AUTO AME LOUD SCAN RDM REP M. RDM CLK ADJ AUTO AME CRSC OFF AUD OFF AUD Panel assy (A64-2878-02): KDC-2024SA/SG/SYA/SYG Escutcheon Panel assy (B07-3001-02): KDC-2024SA/SG/SYA/SYG (A64-2884-02): KDC-2094YA/YG Escutcheon (B07-3001-02): KDC-2094YA/YG KDC-2024S COMPACT DIGITALAUDIO 45Wx4 COMPACT KDC-2094 WIDE BAND 45Wx4 DIGITALAUDIO MONO LOUD SCAN RDM REP CLK ADJ AUTO AME LOUD SCAN RDM REP CLK ADJ AUTO AME MONO OFF AUD OFF AUD DC cord (E30-4784-05) DC cord(ISO) (E30-4790-05) Mounting hardware assy (J21-9716-03) Plastic cabinet assy (A02-1486-13) Lever (D10-4589-04)x2 Antenna adaptor (T90-0523-05) Screw set (N99-1719-05) Screw set (N99-1610-15) Depends on model. Refer to the parts list TUNER OUT 1200mV LCD LCD DRIVER WITH KEY MATRIX REMOCON BACK LIGHT KEY ILLUMI 2 FM+B Q502 A8V IC10 FM AGC OUT Q223,224 KDC-2023, 2024A/SG/SYA/SYG, 2094YA/YG, 222/S,3023 ANT FM AGC AM+B Q501 PRE MUTE FM(J,K) : 1800mV FM(E) : 1372mV AM(J,K) : 600mV AM(E) : 855mV IC4 CD : 3600mV CH : 3600mV PRE OUT AM AGC CD SERVO A8V BU5V AM AGC OUT TUNER,MPX & E-VOL. IC8 POWER IC MUTE MUTE LOGIC Q10 SP OUT AUDIO OUT 12EJE LO/S SCLK SDA 8EJE MUTE RST STOP LO/EJ MO LOE/LIM 1200mV CH CD BU DET IC12 BACK UP BLOCK DIAGRAM IC6 EEP-ROM BU5V IC11 Q20 RDS DECODER IC1 ACC DET IC7 ACC RESET IC POWER SUPPLY IC P-CON P-ANT Q51,55 CHANGER AUDIO OUT RST REQ C CLK DATA H CH-CON REQ H DATA C MUTE BACK UP BU5V IC2 SW5V P-CON P-ANT MI-COM SERVO SERVO VCC SW1 SW2 Q50 SW5V SW5V BU5V FM+B AM+B A8V BU5V FM+B AM+B AUDIO+B ILLUMI KDC-2023, 2024A/SG/SYA/SYG, 2094YA/YG, 222/S,3023 COMPONENTS DESCRIPTION q SWITCH UNIT (X16-1460-xx/2370-12) Ref.No. IC1 IC2 Q1 Application/Functions LCD driver & key matrix Remote Sencer Key scan start Operation/Condition/Compatibility When Q1 base goes Lo, key scan start. q ELECTRIC UNIT (X25-9600-xx/9612-7x) Ref.No. IC1 IC4 IC7 IC8 IC10 IC11 IC12 Q10 Q20 Q40 Q50 Q51 Q55 Q70 Q101 Q102 Q501 Q502 Application/Functions System control µ-com Power amplifire Power supply (Multi AVR) MUTE Logic Tuner & E-Vol. Power on reset E2P-ROM B.U. detector A.C.C detector MUTE driver SW 5V SERBO AVR control SERBO AVR Surge detector DSI driver PANEL 5V SW AM RF amplifire FM RF amplifire System µ-com Operation/Condition/Compatibility E-Vol output encoder power amplification for speaker. When a pin 1, 2, or 13 is "H", MUTE turns on When a pin 3, 4, or 5 is "H", P-AMP mute turns ON. Changer is RESET when a pin 9, 10, or 11 is "L". FM/AM tuner & stereo decoder & E-Vol. When B.U. 5V voltage is less than 3.5V, power reset. Writing and read-out of adjustment data for a tuner BU on (base "H") : Collector "H" ACC ON (base : "H") : Collector "L" Base "L" : Mute on (collector "L") Base "L" : SW5V on Pin 2 "H" : Serbo on (pin 4 "H") Base "H" : Serbo on Base "H" : Surge detect Base "H" : DSI on Panel attch : PAN5V on Base "H" : Mute on Base "H" : Gain UP Gate "H" :Gain UP Q223,224 MUTE 3 KDC-2023, 2024A/SG/SYA/SYG, 2094YA/YG, 222/S,3023 MICROCOMPUTER'S TERMINAL DESCRIPTION q SYSTEM MICROCOMPUTER uPD780058GCxxx (X25 : IC1) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Name TDF DET 8EJE SW NC Avss L-RST L-CE AVREF1 NC IC10-DATA IC10-CLK L-DATAL L-DATAS L-CLK R-DATA R-QUAL CH-DATAC CH-DATAH CH-CLK CH-REQH NC AFS I/O I I O Not used (out put L) H:Panel detached L:RESET 3 normal H , Power off L When 7seg model,output L H:Select (panel communication) When panel attached,output L Panel detection Description Processing Operation H:Panel detached L:Panel attached H:Eject is completed Except 8cm CD model:always output L O O LCD driver RESET LCD driver selection Not used (connected to 9pin) IC10,E2PROM data communication IC10,E2PROM clock communication Data input from the LCD driver Data output to the LCD driver Clock output to the LCD driver Data input from the RDS Quality input from the RDS Data input from the changer (new 5L) Data output to the changer (new 5L) Clock input/output with the Changer (new 5L) Request output to the changer (new 5L) Not used (output L) I/O O I O O I I I O I/O O O O O O O I O I I I I I O I/O O O O O O O 3 non communication : H 3 non communication : H Non communication : H When panel detached : L 3 Pull down on X25 unit,Pull up on X16 unit When panel detached , output L When panel detached , output L Except RDS model : output L Except RDS model : output L Except changer model : output L When non communication ,last data keeping Except changer model : output L Check the old and new Except changer model : output L L:Requset Except changer model : output L 22-24 NC 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 CH-CONT TYPE REF SD NC TYPE2 TYPE1 TYPE0 TUNER-TYPE1 Vss1 TUNER-TYPE0 MUTE M-DATA M-CLK ADJ P-MUTE SVR P-STBY SW5V H:Normal L:FM/AM seek and AF search Noise detection time constant switching terminal 3 (When tuner SRC auto zero , L) Not used (output L) H:Changer on L:Changer off Changer control Except changer model : output L 5V lines output for destination setting H:During destination reading Tuner SD input H:Station detected Not used (output L) Destination type selection terminal 2 Refer to destination type list. Destination type selection terminal 1 Refer to destination type list. Destination type selection terminal 0 Refer to destination type list. Destination available/genuine model rool off H:genuine model 1 L:available model Destination available/genuine model noise cancel H:genuine model 0 L:available model H:mute on L:mute off Mute (E.Vol,Preset) control Power off after that 15 second L Data input/output with the CD mechanism 3 non communication : H Clock output to the CD mechanism 3 non communication : H When adjustment = H Tuner lines adjustment PS1-0,1=L PS1-2,2-0,1=Hi-z IC10-DATA,CLK=Hi-z H:mute off L:mute on Power IC mute control Power off after that 15 second H H:When momentary power down detected Power IC servo control L:Nomal Power IC standby control H:Power IC ON L:Power IC OFF SW 5V control H:SW5V OFF L:SW5V ON Power off after that 10 second H 4 KDC-2023, 2024A/SG/SYA/SYG, 2094YA/YG, 222/S,3023 MICROCOMPUTER'S TERMINAL DESCRIPTION Pin No. Name 43 B.U-DET 44 ACC-DET 45 46 47 48 PS1-0 PS1-1 PS1-2 PS2-0 I/O I I O O O O Description Back up detection terminal ACC detection terminal Power supply IC SW1 control 0 Audio 8V,P-CON Power supply IC SW1 control 1 Audio 8V,P-CON Power supply IC SW1 control 2 P-ANT Power supply IC SW2 control 0 ILL,FM,AM Power supply IC SW2 control 1 ILL,FM,AM BEEP O O O I O I/O O O I I I I I I I DSI control Not used (out put L) Not used (out put L) CD mechanism down&limit detection CD mechanism loading motor control output CD mechanism loading/Eject switching terminal Stop output to the CD mechanism Reset output to the CD mechanism Mute input from the CD mechanism Reset input from the System microcomputer Remote control input RDS clock input Request input from the changer (new 5L) CD mechanism loading's switch detected Key input detected (11pin L connected to the DATA L) 12cm disc detected H:Light on L:Light off When panel attached,output L When panel detached,flashing at the panel (H/L) FIX model is output L Processing Operation H:power down L:B.U. on H:ACC OFF L:ACC ON BA4911 SW1 PS1-2 PS1-1 PS1-0 L L L L L(H) H(L) L H H H H H BA4911 SW2 PS2-1 L L(H) H PS2-0 L H(L) H Power supply IC output A8V P-CON P-ANT STANBY ON OFF OFF ON ON OFF ON ON ON Power supply IC output ILLUMI ON ON FM STANBY ON OFF AM OFF ON 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 PS2-1 BEEP DSI NC NC LOE/LIM SW MO SW LO/EJ M-STOP M-RST M-MUTE RESET REMO R-CLK CH-REQC LOS SW KEY-REQ 12EJE SW Vss0 VDD1 X2 X1 IC XT2 XT1 VDD0 AVREF0 S-METER NOISE PHONE NC AVCONT O H:Chucking detection L:Normal H:Loading,Eject,Break L:Play H:Eject L:Loading H:Play L:Stop H:Normal L:CD mechanism reset H:mute off L:mute on Except RDS model : output L H:Changer detection L:Request Except Changer model : output L H:No disc L:DISK IN(Loading Start) H:Key no input L:Key input (edge key data reading start) L:12cm disc 3 MAIN X'tal oscillating circuit 3 MAIN X'tal oscillating circuit TEST Not used 3 4.19MHz X'tal connection 3 4.19MHz X'tal connection OPEN I I I O O VDD Connected to VDD A/D converter reference voltage control output, connection to the 80pin AVCONT S-meter input FM noise detection input 3 2.5V or greater:NAVI MUTE 2way mute 1.0V or less:TEL MUTE Except phone mute model : output L Not used (out put L) H:During A/D converter active A/D converter standard voltage control output same timing with PON 5 KDC-2023, 2024A/SG/SYA/SYG, 2094YA/YG, 222/S,3023 MICROCOMPUTER'S TERMINAL DESCRIPTION q MECHANISM MICROCOMPUTER MN6627771KP (X32 : IC2) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 Name TVD SPL PC PWM TBAL FBAL NRFDET OFT BDO LDON DSLB DVDD1 DVSS1 AVSS2 DSLF ARF RFSW PLLF PLLF2 IREF RFENV TRCRS TE FE AVDD2 AVSS1 OUTR AVDD1 OUTL DVSS3 CSEL NC ASEL MSEL0 MSEL1 ICRST BCLK LRCK SRDATA VREFP HOT 8EJE_SW 12EJE/SDET_SW LOE/LIM_SW PCK EFM SENSE CLVS DEMPH DVDD2 X1 I/O O O O O O O I I I O O I/O I I I/O I/O I I I I I O O I O I I I O O O O I I I I I O O O O O I Description Traverse driver output (PWM output) Spindle motor drive output (PWM output) Spindle motor ON output multi-purpose PWM output Tracking balance adjust output (PWM output) Focus balance adjust output (PWM output) RF detection signal input Off-track signal input Drop out signal input Laser on signal output H:ON DSL balance output Power supply for digital circuit Ground lines for digital circuit Ground lines for analog circuit Loop filter terminal for DSL RF signal input When DSL circuit,constant switch terminal Loop filter terminal for PLL Loop filter characteristic switching terminal for PLL Standard voltage input terminal RF envelope signal input Track cross signal input Tracking error signal input Focusing error signal input Power supply for analog circuit Ground lines for analog circuit Rch audio output Power supply for analog circuit Lch audio output Ground lines for digital circuit Oscillation frequency specification terminal Not used Audio output polarity switching terminal Destination type selection port (set 2bit) Destination type selection port (set 2bit) Reset control terminal for external DAC Bit clock output for serial data L/R identification signal output Sirial data output A/D converter standard power supply input Temperature protection detection terminal (AD input) 8cm disc eject stop detection terminal Judge the 8cm or 12cm disc Pick-up inside detected PLL extracted clock output,etc EFM signal output,etc Optics servo status signal output,etc Spindle servo phase synchronous signal output,etc Dephase detection signal output,etc Power supply for digital circuit Main clock input terminal Processing Operation L:ON H:OFF (default ) It's possible to setup the TOSF2 L:detected H:detected H:detected When command FO on,LDON is H For DSL,PLL and AD The bias of ARF output terminal in one Analog input Analog input Analog input Analog input For DSL,PLL and AD For audio output (Lch and Rch in one) For audio output (Lch and Rch in one) H:33.8488MHz L:16.9344MHz L:Reverse H:Non reverse Order "MSEL 0" and "MSEL 1" Set up Order "MSEL 0" and "MSEL 1" Set up Over C5(h):on H:Stop 12cm disc stop detection terminal Loading end detection terminal L:Normal operation H:Luff servo H:on 6 KDC-2023, 2024A/SG/SYA/SYG, 2094YA/YG, 222/S,3023 MICROCOMPUTER'S TERMINAL DESCRIPTION Pin No. 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Name X2 DVSS2 XSUB1 XSUB2 TEST1 TEST2 NC VER/HOR DRV_MUTE /MUTE_L /MUTE_R /RST OCD_CLK /MSTOP DATA SBIO /CLK TX EQCNT XSEL MCNT P-ON MOTOR LO/EJ CD-RW LDCNT DVDD3 FOD TRD I/O O I O I I O O O O O I I I I/O I I/O O O I I O O O O O O O Description Main clock output terminal Ground lines for digital circuit When external DAC,external clock input terminal Test port 1 Test port 2 Not used Put length or breadth switching motor terminal Driver mute control terminal Audio Lch MUTE output Audio Rch MUTE output LSI reset input terminal When OCD connected, clock input Standby detection terminal I2C bus data line (communication line with system computer) When connec 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