Kenwood-MDX02-pss-sm 电路图 维修手册.pdf

70% MD PERSONAL STEREO SYSTEM MDX-01/02 SERVICE MANUAL 2000-12/B51-5691-00 (K/K) 332 SOUND PUSH OPEN MD RECREPEAT VOLUME/MULTI CONTROL TUNERFM/AM STANDBY/TIMER MD TUNE MODESTOP/ CD MENU POWER SET/DEMO C D / M D H ig h S p e e d D u b bi n g S y st e m TUNINGTUNING MD PERSONAL STEREO SYSTEM DISC LOADING MECHANISM EJECT BEST HITS Note:Please contact KENWOOD service in your side if you want to get the AC power cord. In compliance with Federal Regulations, following are repro-duction of labels on, or inside the porduct relating to laser product safety. KENWOOD-Crop. certifies this equipment conforms to DHHS Regulations No.21 CFR 1040. 10, Chapter 1, Subchapter J. DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM. FM 75?AM GND ANTENNA ANTENNA PHONES AC IN Front cabinet(OUTER) assy (A60-1942-08): L (A60-1943-08): R (A60-1944-08): D (A60-1946-08): H (A60-1947-08): S Knob B (K29-7900-08) Knob A (K27-7893-08): S (K29-7895-08): L (K29-7896-08): H (K29-7898-08): D (K29-7899-08): R Top plate R assy (A60-2059-08): DHLR (A60-2060-08): S Door (A52-0914-08): DHLR (A52-0915-08): S Door lens (B12-0408-08): L (B12-0409-08): R (B12-0410-08): D (B12-0412-08): H (B12-0413-08): S MD door (A52-0918-08) Handle (K01-0139-08) Rear cabinet (A02-2987-08): S (A02-2988-08): DHLR AC socket (E03-0375-08) Handle(REAR) (K01-0134-08): L (K01-0135-08): H (K01-0137-08): D (K01-0138-08): R (K01-0140-08): S Antenna terminal (E70-0114-08) Stereo jack (E11-0398-08) D: ORANGE, H: GREY, L: BLUE, R: RED, S: SILVER RadioFans.CN 收音机爱 好者资料库 AM loop antenna (x1) (T90-0868-08) Remote control unit (x1) (A70-1440-08): DLH (A70-1441-08): R (A70-1442-08): S Battery cover (A09-1191-08) R6/SUM-3 batteries AC plug adaptor (E03-0115-05) for remote (x2) RC-MDX0001 AM loop antenna stand (x1) (A09-1201-08) MDX-01/02 2 CONTENTS / ACCESSORIES CONTENTS / ACCESSORIES . 2 DISASSEMBLY FOR REPAIR.3 CIRCUIT DESCRIPTION.4 ADJUSTMENT.8 PARTS DESCRIPTIONS .9 PC BOARD . 10 SCHEMATIC DIAGRAM . 13 EXPLODED VIEW .25 PARTS LIST.27 SPECIFICATIONS .Back cover Contents Accessories Caution on condensation Condensation (of dew) may occur inside the unit when there is a great difference in temperature between this unit and the out- side. This unit may not function properly if con- densation occurs. In this case, leave the unit for a few hours and restart the opera- tion after the condensation has dried up. Be specially cautious against condensation in a following circumsatance: When this unit is carried from a place to another across a large difference in tem- perature, when the humidity in the room where this unit is installed increases, etc. Note related to transportation and movement Before transporting or moving this unit, carry out the following operations. (1) Remove the CD or MD from the unit. (2) Press the 6 key of the MD. (3) Wait for some time and verify that the display becomes as shown in the figure. (4) Press the 6 key of the CD. (5) Wait for some time and verify that the display becomes as shown in the figure. (6) Wait a few seconds and turn the unit OFF. RadioFans.CN 收音机爱 好者资料库 3 8 4 2 2 1 1 1 1 1 7 1 x3 x2 7 x1 7 x1 10 x1 6 x2 6 x2 5 x2 11 11 11 13 12 12 14 9 x3 MDX-01/02 3 DISASSEMBLY FOR REPAIR 1. How to Remove Front Cabinet 1. Remove 6 screws(1) from the rear cabinet side. 2. Remove 2 screws(2) fixed CD and the front cabinet. 3. Remove 3 screws(3) from the bottom front side. 4. Move the front cabinet frontwards(4). 2. How to Remove CD and Top Covers 1. Remove 2 screws fixed CD and top covers(5). 2. Remove 8 screws fixed the carrying handle (6x4) and the rear cabinet(7x4). 3. Turn the antenna cap(8) to remove and lift the carrying handle and CD mechanism(9). 3. How to Remove MD Mechanism 1. Remove the screw(0) fixed the AC inlet socket. 2. Remove 5 screws fixed the bottom cabinet(!x3) and the power transformer(x2). 3. Move the main pcb frontwards(#). 4. Remove 3 screws($) fixed the MD mechanism. RadioFans.CN 收音机爱 好者资料库 MDX-01/02 4 CIRCUIT DESCRIPTION For more information on each adjustment mode, refer to each section of 5, Electrical adjustment. If other adjustment mode has been entered incorrectly, press the STOP key to exit the mode. The number 9 - 13 are not used for service. If these mode have been entered incorrectly, press the STOP key immediately to exit the mode. Specially, do not use EEP INITIAL. (E2PROM data has initialized if used it.) 4. MD TEST MODE FOR ADJUSTMENT 4-1 Entering the Test Mode (MD Mode2) While pressing the SKIP DOWN key, turn the AC on. 4-2 Cancelling the Test Mode Turn the AC off. 4-3 Key Operations for Adjustment No.LCDDESCRIPTIONSECTION 1TEMP ADJU The work of adjustment is unnecessary in this mode. 5-5 2LDPWR ADJULaser power adjustment.5-6 3LDPWR CHECLaser power check.5-6 4EFBAL ADJUTraverse adjustment.5-7 5TE B. ADJAutomatic EF balance adjustment.- 6FBIAS ADJUFocus bias adjustment.5-8 7CPLAY MODEContinuous playback mode.4-5 8CREC MODEContinuous recording mode.4-6 9STT-LIMIT Check the mechanism start limit switch position. - 10JUMP MODETrack jump checking mode.- 11SRV DAT REServo data reading.- 12EEP MODEE2PPROM data reading or rewrite.- 13EEP INITIALE2PPROM data initializing.- KEYSOPERATION SKIP UP/DOWNSelect mode or adjustment value change. MD PLAY/PAUSEFix mode or adjustment value. STOPCancel the selected mode. SKIP UP Pickup moves outwards when pressed skip up key. SKIP DOWN Pickup moves inwards when pressed skip down key. Remote control only. 4-4 Selection of Adjustment Test Mode Whenever the volume/multi-control knob is turned, the adjustment test mode is selected. 1. INITIALIZATION 1-1 How to Set Initialization Insert the power cord to AC outlet with pressing REPEAT key. 1-2 Operation in Initialization mode Display shows INITIALIZE, and Standby mode after mechanism check. The Display shows error code if mechanism has malfunc- tion. The until changes to shipment mode after RAM and back- up clear, disc out, and so. 2. TUNER PRESET 3-3 Key Function in Test Mode KEY CD PLAY STOP MENU SKIP UP SKIP DOWN CD MODE T-SERVO ON(05) u w T-SERVO OFF(03) Stop to CD operation(01) HI SPEED(double speed) u w NOR SPEED: in playback Playback in STOP mode. Track up of CD. FF search of CD if key pressed more 400ms. Pickup move outwards in STOP mode if key pressed more 400ms. Playback in STOP mode. Track down of CD. FB search of CD if key pressed more 400ms. Pickup moves inwards in STOP mode if key pressed more 400ms. MD MODE 1 Stop to operation. Change to mute-off. Choose the REC input; digital or analog in stop mode. Track up of MD. FF search of MD if key pressed more 400ms. Track down of MD. FB search of MD if key pressed more 400ms. 3. TEST MODE 3-1 TEST Mode Setting TEST MODESETTING CDMD REC MD 1SKIP UPInsert the power cord FTC The value shown in ( ) is the voltage measured at the moment of STOP. The voltage followed by (REC) refers to the value during MD RECORDING. TKMOQSLNPR MDX-01/02 Y39-3890-20 CN1 Q10 Q8 Q11 MD MECHA. u-COM 3.15V AVR SL/SP MOTOR DRIVER FOC./TRA.DRIVER 3.3V AVR DA/AD CONVERTER IN2 DIGITAL E2PROM POWER UNIT 4/4 -CN402 RESET D10D11 D12D13 Q20 DIGITAL IN1 IC24 IC8 IC12 IC10 IC6 MDX-01/02(M) (1/4) C 2.5V 2.1V 2.2V 2.4V2.3V 2.2V 2.6V 1.9V 0V 5.1V 1.9V 1.4V 1.4V 1.8V 1.5V 1.5V 3.3V 1.8V 3.3V 1.5V 1.5V 1.8V 1.5V 1.5V 3.3V 3.3V 3.3V 4.9V 3.5V 3.3V 1.6V 1.6V 1.5V 0.9V 1.6V 3.3V 1.6V 1.7V 0.8V 1.6V 1.6V 5.1V 5.1V 3.5V 3.3V 2.3V 1.1V 3.5V 3.5V 3.5V 3.3V 3.3V 3.3V 3.3V 0V 3.3V 0V 0V 3.5V 3.3V 1.9V 3.3V 0.9V 3.1V REC : 0.3V 3.2V 3.2V 3.3V 3.3V 3.2V 3.3V 3.2V 0V 3.3V 3.3V 0V 0V 3.3V 3.3V 3.5V 3.3V 3.3V 1.6V 1.3V 3.3V 3.3V 3.3V 3.5V 3.5V 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 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 CE MODE2 FWE EXTAL VSS XTAL VCC STBY NMI RESET MODE1 MODE0 AVCC VREF SCL SDA VCC VSS 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 CTXD CRXD DQSY SQSY XLAT SWDT SRDT SCLK HMUTE SENS MNT3 MNT2 MNT0 MNT1 XINT TX RECP XRST LDON RMS IDSW HEADPOS MODEL SUB DISCINSW SLTSW AVSS LOADM- LOADM+ EMPHA ADDARST MUTE POWER FRDT FWDT 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 26H+5V HGND +3.3V BACKUPV CTXD CRXD BACKON CE MECHARST AINR DGND AINL NC DGND GND AOUTR A+5V AOUTL D+5V DIN1 M+5V DIN2 M+5V MGND NC MGND 8 7 6 5 4 3 2 1 SDTO DEM1 DEMO VDD VSS AINL AINR VCOM 9 10 11 12 13 14 15 16 SDT1 LRCK MCLK SCLK PWAD PWDA AOUTL AOUTR 2200P X2 10MHz 3.3K R176 87 88 89 90 91 92 84 R182 47K R183 47K R172 47K R181 47K 0.1 C166 1 2 3 100u6.3 C190 + 100u6.3 C187 + 6 7 8 5 2 1 4 3 39 38 10K R170 10K R171 0.1 C171 R53 100 R4 470 +5V 0.1 100u6.3 C311 + + 10u10 R10 100 R11 100 1K R178 41 40 47 44 43 48 R15 470K R16 470K C170 0.1 R168 4.7K 76 77 R17 +B +B +B+B +B+B +B +B +B +B +B +B +B +B R186 470K R187 470K R173 R174 78 81 82 85 83 77 76 98 96 R149 100 47K 100 99 97 47K 75 59 75 C312 C32 0.1 C44 3.3 +5V +3.3V +5V +5V +5V +3.3V +5V +5V 4.7 R160 100u6.3 C198 + +3.3V+3.3V +3.3V +3.3V+3.3V+3.3V +3.3V R13 100 +3.3V +3.3V +3.3V +3.3V +3.3V+3.3V +3.3V +5V +5V 59 +5V +5V+5V+5V +B 97 2200P R223 10K R52 100 0 R217 W205 W206 15 16 17 18 19 20 21 22 23 24 25 26 27 28 14 13 12 11 10 9 8 7 6 5 4 3 2 1 W200 1 C325 22K R228 39K R208 1500P C300 100K R207 100K R206 C326 1500P 22K R229 R209 39K C301 1 100K R200 R214 22K C306 1500P 100K R201 C307 R215 22K 1500P C304 18K 390P R212 100K R204 R205 100K 390P C305 18K R213 R203 100K 18K 390P C302 R210 100K R202 390P C303 18K R211 85 86 88 89 91 92 93 94 390K R216 W208 W207 0 R218 27 28 29 25 +3.3V +3.3V +3.3V 39 38 +3.3V 31 14 9 12 10 11 13 15 17 18 16 41 40 31 0.1 C152 100u6.3 C151 + R3 470 C35 C34 0 R226 MODEL TYPE 0.1 C322 +B +5V +B +5V W221 DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Noise reduction circuit made under license from Dolby Laboratories Licensing Corporation. UVXZABADWYAAAC 2 1 3 5 7 4 6 IC101 IC102 B MDX-01/02 (2/4) TUNER UNIT PD CLK XOUT 221 XIN A.OUT GND 21 A.IN 19 20 2 CE NC 4 3 DI NC AM.IN 17 VDD 18 FM.IN 16 6 5 DO 7 FM/AM NC 14 15 IF.IN 12 9 8 S/M 11 NC 10 FMIF.REQ 13 R150A 680 T101 L101 2.2uH 10K T104 450kHz T103 100u10 C107 + R119A 300 47 R117A 0.022 C117A 4.7u50 + + 10u10 C114A R107 10 1/4W 5.6K 5.6K CF103 C110 0.01 C153 47u10 + C140A 0.01 R123A 3.3K C124A 47P C157A 47P 10K VR101 C126A 0.01 + C125 4.7u50 R124A 10K C130 0.022u50 + C127 10u10 C128A 220P R104A 680 0.018 0.018 330P C104A 5P C103A 100K R102A T102 28 29 7P TC101 VC101 C131A FMIF AMSD GND FMSM VCC SD ST DET AFLI AFRI LOUT ROUT AFIN AFRO FMOUT AFLO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 S/M FM/AM AMSM MUTE AMRF AMOUT AMOSC REQ FMBW AMAGC AMOUT 29 28 C111A 0.022 X101 7.2MHz 27P C144A 27P C143A 1K R131A 4.7u50 C123 + R132A + C142 47u10 + C145 47u10 L102 100uH 15 14 15 14 R114A 47K R127A 47K R158A 10K 1K 3.3K 3.3K 3.3K 15K R125A R145A 1K R144A 1K C118 5.6K 0.01 C108A C154 R126A 15K 1 C133A 1 4700P C162A 4700P C161A 470P C156A 47P 2.2u50 C129 +B+B 1R.OUT 10PLL.DO 8TU.DATA 9TU.CLK 7TU.CE ST5 6SD 3L.OUT 49.4V TU.GND2 +9.4V 470P 21 C132A C134 C135 1u50 C121A C119A C120A 0.47u50 10K VR102 +B AMIF FMBY MIX R152A 1K +B +B +B +9.4V+9.4V +B R134A 1K R111A 1K 0.022 C115A C146A 470P R148A 1K R138A R135A R136A R137A R110 470 1/4W 1 2 3 4FM ANT R155A 100 R142A 330 0.01 C113A 10.7MHz CF101 CF102 10.7MHz 7 T1 0.01 C2A 1K R1A R2A 470K 180P C3A 12K R3A C16A 0.01 C4A 22P L1 D4.5/3.5T TC1 20P 3P C5A 100P C6A L2 2.2uH T2 0.01 C10A 330 R7A 1P C7A 1M R4A 220 R6A C9A 0.01 10K R8A 270P C11A 220 R11A 5P C8A 56P C12A 33P C13A 3.3K R10A 10K R14A L4 D4.5/4.5T 4.7K R13A ANT 6 5 4 3 2 1 8 NC GND GND VT +B IF OSC 100 R106A 220u10 + 0.01 R118A 100 FM ROD ANT GND GND AM ANT 4.7K220 0.01 C101A 1 C139A 47K 3300.01 C112A 3.3K R121A Q102 R101AR105AR103A +9.4V +9.4V R129A 33K C137A 100P +9.4V+9.4V +B +B R120A R108A R133A +B 2200P C17A 18P C1A C105A C106 2.2K R113A R115A 100 R153A 1K R130A C158A 0.01 1u50 +9.4V C159A 100P 47P C164A 0.01 C147A 100 R5A 1u50 C151 + 1u50 C152 + + + + +B Q102 D102 D101 /MPX FM/AM SYSTEM IC PLL -CN403 UNIT 4/4 CN101 for FM ADJ. D105 FM FRONT-END VC1 VC2 Q2 Q1 Q3 Q101 FM SW RF AMP JK102 IC101: LA1837 IC102: LC72131 Q101: 2SA1317 Q102: 2SC930 D101-104: 1SS133 GND LINE SIGNAL LINE B LINE VC101SVC342L: D105MTZJ5.1B: POWER VC1,2 Q1-3 SVC201 SPA: 2SC930: MW OSC MW ANT AM IF FM DET D103 D104 TP101 2.6V 0V 0V 0V 5.2V (8.1V) (0.1V) (9.5V) 8.0V 8.0V 0.2V 0V 0V 0V(2.5V) 2.5V(0V) 5.2V 0.8V 2.5V 9.1V(9.2V) 3.6V 3.6V 3.6V 0V 0.1V(4.97V) 9.1V(9.2V) 9.1V(9.2V) 1.4V 4.3V(0V) 0V(2.6V) 0.2 8.1V(4.9V) 4.8V(8.1V) 2.1V(1.9V) 3.6V(3.5V) 0V(1.3V) 0.2V(1.4V) FM: 3.6V 2.9V 3.3V 3.3V 4.3V 4.3V 4.3V 4.3V 3.6V(3.5V) 3.7V 3.7V (74V) 4.0V 8.8V 0.6V 8.3V 4.3V 3.9V 9.4V 9.4V 8.7V 0.8V 8.2V 9.1V 4.5V FM : 85MHz 9.4V 1.5V MDX-01/02 Y39-3890-20 MODECARRIER MODULATION ANT INPUT FREQUENCYDEVIATION FM98MHz1kHzSTEREO 67.5kHz 7.5kHz(Pilot)60dB AM1000(999)kHz400HzMONO 30% MOD60dB The DC voltage is an actual reading measured with a high impedance type volt- meter as the AM/FM signal generator is specified to the conditions as shown in the list below. The measurement value may vary depending on the measuring instru- ments used or on the product. The value shown in ( ) is actual reading measured in the AM mode. CAUTION: For continued safety, replace safety critical components only with manu- facturers recommended parts (refer to parts list).indicates safety critical com- ponents. For continued protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resis- tance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appli- ance is returned to the customer. AEAGAIAKAMAFAHAJALAN 2 1 3 5 7 4 6 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 LRCK PCMD BCK EMPH XVDD XTAI XTAO XVSS AVDD1 AOUT1 AIN1 LOUT1 AVSS1 AVSS2 LOUT2 AIN2 AOUT2 AVDD2 RMUT LMUT SQSO SQCK XRST SYSM DATA XLAT CLOK SENS SCLK VDD ATSK SPOA SPOB XLON WFCK XUGF XPCK GFS C2PO SCOR SE FE VC XTSL TES1 TEST VSS FRDR FFDR TRDR TFDR SRDR SFDR SSTP MDP LOCK FOK DFCT MIRR COUT DOUT VDD VSS AVDD3 PCO FILI FILO CLTV AVSS3 RFAC BIAS ASYI ASY0 AVDD0 IGEN AVSS0 ADIO RFDC CE TE 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 GND TRK(+) TRK(-) FCS(+) FCS(-) RESET VCC CAPA2 CAPA1 VREF1