Kenwood-DM3090-md-sm维修电路原理图.pdf

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1、In compliance with Federal Regulations, following are reproductions of labels on, or inside the product relating to laser product safety, KENWOOD-Corp. certifies this equipment conforms to DHHS Regulation No.21 CFR 1040.10, Chapter 1, Subchapter J. DANGER : Laser radiation when open and interlock de

2、feated. AVOID DIRECT EXPOSURE TO BEAM. *Refer to parts list on page 49. STEREO MINIDISC RECORDER DM-3090 SERVICE MANUAL 1997-11/B51-5396-00 (K/K) 1812 MULTI CONTROL TIME DISPLAYDISPLAY/CHARAC.TRACK/EDIT ON/STAND BY STEREO MINIDISC RECORDER TIMER/ DELETEENTER RECREC LEVEL 010 PHONES LEVEL MINMAX PHON

3、ES R L R L PLAY OUT REC IN DIGITALLINE 2REC IN1REC INPLAY OUT OPT. RESET KENWOOD badge (B43-0302-04) Front glass (B10-2457-08) Front panel (A60-1370-08) Knob (JOG) (K29-6946-08) Knob (REC/HP) (K29-6947-08) AC power cord bushing (J42-0338-08) AC power cord * (E30-) Optical digital output (W02-2643-08

4、)Switch (RESET) (S68-0091-08) Analogue output terminal (E63-1031-08) Optical digital input (W02-2643-08) Knob (POWER) (K27-2261-08) Knob (K27-2262-08) Head phone jack (E11-0345-08) Panel (A29-0898-08) Digital input terminal (E63-1032-08) DM-3090(K) COVER 97.11.29 0:18 AM yW 2 RadioFans.CN If a probl

5、em occurs If this product is subjected to strong external interference (mechanical shock, excessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is operated incorrectly, it may malfunction or the display may not function correctly. If such a problem occurs, do the fol

6、lowing: Unplug the AC power lead from the AC socket. Wait about 20 - 30 seconds and then plug the AC power lead back into the AC socket. Press the reset key on the back of the unit. When the reset key is pressed, all of the settings in memory will be erased. R L R L PLAY OUT REC IN DIGITALLINE 2REC

7、IN1REC INPLAY OUT OPT. RESET RESET Beware of condensation When water vapor comes into contact with the surface of cold material, water drops are produced. If condensation occurs, correct operation may not be possible, or the unit may not function correctly. This is not a malfunction, however, and th

8、e unit should be dried. (To do this, turn the POWER switch ON and leave the unit as it is for several hours.) Be especially careful in the following conditions: When the unit is brought from a cold place to a warm place and there is a large temperature difference. When a heater starts operating. Whe

9、n the unit is brought from an air-conditioned place to a place of high temperature with high humidity. When there is a large difference between the internal temperature of the unit and the ambient temperature, or in conditions where condensation occurs easily. 6 1 9 +10 23 45 78 0 Remote control uni

10、t (1) (A70-1208-08) Battery cover (A09-0337-08) Audio cord (2) (E30-0505-05) Optical fiber cable (1) (B19-1529-05) Batteries (2) DM-3090 2 CONTENTS/ACCESSORIES/CAUTIONS CONTENTS/ACCESSORIES/CAUTIONS.2 CONTROLS .3 DISASSEMBLY FOR REPAIR.5 BLOCK DIAGRAM .7 CIRCUIT DESCRIPTION.9 TROUBLE SHOOTING.16 ADJ

11、USTMENT.24 PC BOARD . 32 SCHEMATIC DIAGRAM . 37 EXPLODED VIEW .47 PARTS LIST.49 SPECIFICATIONS .Back cover CONTENTS Accessories Cautions DM-3090(K) COVER 97.11.29 0:18 AM yW 3 RadioFans.CN Names and functions of parts MULTI CONTROL TIME DISPLAYDISPLAY/CHARAC.TRACK/EDIT ON/STAND BY STEREO MINIDISC RE

12、CORDER TIMER/ DELETEENTER RECREC LEVEL 010 PHONES LEVEL MINMAX PHONES 1? ? 2? ? 3? ? 4? ? 5? ? 6? ? 7? ? 8? ? 9? ? 0? ? !? ? ? ? #? ? $? ? %? ? ? ? 1 Eject key: 2 Power switch (ON/STAND BY key) 3 Mini Disc Insertion slot 4 TIME DISPLAY key 5 DISPLAY/CHARAC key 6 TRACK/EDIT key 7 TIMER/DELETE key 8 J

13、og dial (Next/Previous) 9 ENTER key 0 Headphone jack (HONES) ! Headphone output level control Record level control # Record key: $ Play/Pause key: % Stop key: Cue/Review key: / TOCDISC TOTAL REMAIN RANDOMTIMER RECCLOCK TRACKDATE0dBOVER124 MONO LP PRGM 1 8 15 2 9 16 3 10 17 4 11 18 5 12 19 6 13 20 7

14、14 1? ?2? ? 3? ? 4? ? 5? ? 6? ? 7? ? 8? ? 9? ? 0? ? !? ? ? ? #? ? $? ? %? ? ? ? The value shown in ( ) is the voltage mea- sured at the moment of STOP. The voltage followed by (REC) refers to the value during MD RECORDING. DM-3090(K) COVER 97.11.29 0:19 AM yW 20 ZAAACABAD 2 1 3 5 7 4 6 0V 0V 3.3V 3.

15、3V 0V 0.2V 3.0V 3.0V 5.2V 5.2V 5.2V 0V 5.1V 0.0V 0V 0V 5.2V 5.1V 5.2V 5.1V 5.2V 3.9V 5.2V 3.9V 2.5V 2.7V 2.7V 5.1V -7.9V 7.7V 3.3V 1.6V 3.3V 1.0V 1.6V 0.9V 3.0V 1.5V 0V 3.3V 0V 1.7V TX302RX302 B A PLAY OUTREC IN CONVERTER A/D D/A REC OUT DIGITAL 1 OPT. DIGITAL DIGITAL OUT CNP301 2 DIGITAL COAX. REC

16、IN INPUT SEL DIGITAL COAX/OPT DIGITAL OUT REC IN DIGITAL J101A (AUDIO) Lch 1 Rch 2 LINE REC IN IC101 (2/2) (1/2) IC101 D301 J301 MAIN SECTION B A IC201 IC302 IC301 560 R406 220K C203 1K -CN1902 1/2 MD-UNIT 1/2 MD-UNIT -CN1904 R308 22 +5V +5V +5V+5V +5V +5V+5V +7.5V +7.5V +5V +5V +5V+5V +5V+5V -7V-7V

17、 +7V+7V 1M R203 + C117 100u10 5 6 7 8 9 10 12 17 16 +7.5V +7.5V +BV +BV +BV + C201 100u10 1u50 C206+ 47u10 + 101113141512171918212322202416 R313 47K R401 560 C531 R554 68K 0.1 R552 39K R553 68K 14 R414 17 16 15 R402 R404 560 R407 R408 8.2K R413 4.7K TEST2 TEAT3 21 20 DATAI DATA0 WS BCK L3DATA 19 18

18、17 16 15 8 TEST1 9 10 VDDD 11 12 13 VSSD SYSYCLK L3MODE OVERFL 14 L3CLK 1 3 2 4 6 5 VADCN VINR VREFA VINL VDDA VSSA 7 VADCP VSSO VREFD 27 28 VOUTL VDDO 25 26 VOUTR AVSS AVDD 23 24 22 4.7u25 C205 + 100u10 C207 R412 R405 330 4.7K R411 4.7K 12 13 C212 3.3u25 + R417 + 47u10 C202 + 1K R418 65789 MUTE DFS

19、0 DFS1 DADATA BLCK LRCLK ADDATA SYSCLK D 7.5/5V D 7.5/5V D.GND D.GND D,GND D.GND DSTB MD DATA K DATA SERCH DSCK MD-ST 10uH L201 + C208 3.3u25 + C209 4.7u25 123123 R312 0.022 82K C312 D OUT GND GND D IN 2143 56K R305 C302 L302 10uH R309 10K R307 22 0.022 C303 0.022 10uH L301 C305 0.022 R310 3.3K 0.02

20、2 C304 C311 0.022 C313 0.022 C310 R202 680K R410 220K R415 8.2K 8.2K R416 220K R409 100P C470 220K 560 220KR403 C314 0.022 R111 1.5K + 47P C114 100u10 C118 R112 1.5K + 1 47u10 C116 + - 2 4 R114 C110 220P 3 1K 1K C108R104 + 100K R108 C106 47K R108 220P 1KIu50 R110 100 R115 47P C113 R113 1K C115 + 47u

21、10 220P C109 - +7 8 6 5 100K 220P 47K + C107 Iu50 C105 R105 R107 R109 1K R103 1K 0.22uH L101 C119 C102 0.022 0.022 MM: 2.5mV GND VDD 7 6 5 4 3 2 1 8 9 10 11 12 13 14 R116 100 R303 220K2.7K R304 VDD GND 14 13 12 11 10 9 8 1 2 3 4 5 6 7 0.022 330 R302C301 0.01 R301 82 ( ) ) ) ) ( ( ( )( () ( ) ) ) ) )

22、 ) ) ) ( ( ( ( ( ( ( ( ) DM-3090(K) COVER 97.11.29 0:19 AM yW 17 AEAGAIAKAMAFAHAJALAN 7.8V 7.6V 7.6V -6.4V -6.4V -6.4V 4.2V4.2V 0.4V 0.3V 3.0V 3.0V 5.1V.5.1V 11.3V LOADING:6.7V NORMAL:5.3V LOADING:0V NORMAL:4.7V LOADING:4.0V NORMAL:0V 6.0V 10.7V 6.5V -36.5V -31.6V 31.0V 10.7V 8.8V 8.1V 8.1V3.4V -13.

23、0V -8.3V -8.9V -6.4V -3.8V -6.5V -8.0V -31.0V -30.8V -23.1V -18.6V -26.5V -14.9V -22.4V 2.4V 2.0V 5.1V 4.2V 5.1V5.1V 0.2V 5.1V 2.8V 5.1V REC:5.1V PLAY:0V 5.1V 5.1V 5.1V 0.8V 3.0V 4.2V 0.4V 3.7V 5.1V 1.8V 5.1V 5.1V CNP473 D509 D513 UN970 AVR -31V PLAY OUT SW901 SW501 D651 7.5V AVR LINE Rch Lch Q653 M

24、UTE DRIVE T551 D504 Q503 Q504 D505 5V AVR 5V AVR 7V AVR -7V AVR Q501 (E/T)TYPE (J)TYPE D506 D512 D502 Q505 Q506 D507 D510 D508 D551 D552D553 D554 Q502 D501 CNP472CNP471 D555 T551 AMP PHONES (2/2) IC651 IC651 (1/2) J101 PHONES MUTE D503 Q602 Q601 (1/2) IC601 IC601 (2/2) Q452 Q451 CNP902 CNW903 PHONES

25、 CNW901 J981 PHONES LEVEL LEVEL REC SENSOR REMOTERESET IC Q902 Q901 SW961 SW957 NAME (JOG DIAL) MULTI CONTROL TIME DISPLAY DISPLAY/ CHARAC DELETE TIMER/ ENTER SW956 SW959 SW960 SW958 REC SW951 SW952 SW953 SW954 4c 14G13G 4b 6a5a3a2a1a 7G8G9G10G11G12G : 2SD2012Y(FIN) : NJM45600 D651 : SR19 D551-555 :

26、 RL104A : ISS133D509,510,512,513 D508 D507 D506 D505 D504 D503 D502 D501 D301 : MTZJ2700 : MTZJ5R8C : MTZJ7R58 : MTZ6R8A : MTZ9R19 : MTZ9R18 : MTZJ3308 : MTZJ6R88 : MTZJ5R18 Q653 Q505 Q504,506 Q503 Q502 Q501 Q451,452,601,602 IC601 IC501 IC302 IC301 : KRC102M : KRC1024M : 2SD488-C : 2SB582-C : KTA126

27、6GR : 2SC28788 : NJM45800 : ISB1233SOYX : 74HC10AP : 74HCU04 IC201: uUDA1340 IC101,651 MAIN SECTION DISPLAY SECTION IC501 HEADPHONE IC902 66 72 0.8 R503 1.8K C505 + 10u50 +5V +5V 1 + 100u10 + C518 100u10 C220 1000P C222 0.022 + C522 1000u6.3 R509 820 + C502 4700u25 + C521 4700u25 + C501 100u25 R926

28、1K -31V R945 47K -31V -31V R504 50/60Hz 50Hz AC230V C512 100 C525 + C666 100u10 R960 5.6K R921 R922 G AB 8.2 -BV + C514 10u16 + 1u50 C221 0.022 C667 0.1 0.022 R669 2.7K R670 330 F552 T1.0A 250V C519 F551 HLD551HLD552 HLD554HLD553 HLD551HLD552 HLD554HLD553 F551 T1.0A 250V +5V +5V +7.5V +7V+7V+7V +7V

29、+7V+7V +7V -31V -31V -7V-7V -7V-7V -7V +7V +7V 100 R508 680 R507 + C511 47u25 0.022 C530 100 R510 C513 47u25 + 47K R615 R616 47K R610 1K1K R609 13 14 15 6 8 10 1 9 4 5 3 7 3 4 +BV +BV +7V +7V+7V -BV-BV -BV +BV+BV +BV L202 10uH 141211123456789102423212218171920161513 R512 470 + C517 100u10 + C507 33u

30、50 + C504 220u50 R501 R511 + C524 1000u6.3 33K R514 100K C520 R516 220K 1000P + C613 47u10 680 100 R506 R505 1243 P MUTE -31V FL VP DAC CLK D-1.2 u-CON GND BUCK UP 5V AD5V FIL1 DAC DATA P-IN MD DSTB MD 7.5/5V MD K-DATA MD DSCK DFS DAC MODE FIL2 MD DATA MD 5-10 MD LOAD MD SYN P-CNT MD RESTE MD P-OUT

31、RESET LOAD SW BUCK UP PDOWN 10u16 C515 2 1 + 10u16 C516 OUTIN GND 3 C223 0.022 + R518 220 R517 220 AC100V F552 1A 125V 1A 125V + C656 10u161K R654 + C655 10u16 R653 1K 150P 100K R652 C652C651 100K R651 150P C654 27P R659 10 27P C653 R682 1K 1K R681 1+ - 3 2 4 7 5 + - 6 NC RESET SW HP AMP R OUT HP AM

32、P L OUT HP AMP GND AUX VR R OUT GND AUX VR L OUT AUX AMP R GND AUX AMP L IN AUX AMP I GND 11 12 AUX AMP R IN R668 82 8 10K R457 R458 10K 8.2 R551 C561 0.01 C551 0.010.01 C552 + C665 100u10 82 R667 R613 100 R614 + C658 220u10 + C657 220u10 C457 0.022 + C509 47u25 + C510 1u50 8.2 R502 R660 10 + C614 4

33、7u10 R620 10K R619 10K R617 330 330 R618 R602C602 + 220P C604 47047u10 + 47u10 C601 1+ - 8 2 C607 R611 220P 3 R607 22K R605 C603 220P 1K + 1.5K 47P C611 100u10 C615 R601 470 7+ 5 4 - 220P 1.5K R612 C608 6 1K R608 22K R606 + C612 C616 47P 100u10 C455 820P 470P 470P 33K C459 C453 R453 + C451 47u10 R45

34、5R451 100330 33K 47u10 C452R452 820P C456 R454 470P C454 470P C460 10 9 8 7 6 5 4 3 2 1 100 R456 330 + X902 +5V +5V+5V +5V +5V +5V +5V +5V HP AMP R OUT HP AMP L OUT AUX AMP R GND AUX AMP L IN AUX AMP L GND AUX AMP R IN NC RESET SW AUX VR R OUT HP AMP GND AUX VR L OUT GND OPEN FILMNT 2 FILMNT 1 AD5V

35、BACK-UP5V u-COM GND -31V D-1, 2 DAC CLK DAC MODE DAC DATA DFS MD DSCK MD K-DATA MD 7.5/5V MD DSTB P-IN MD P-OUT P-CNT P MUTE MD DATA MD RESET MD S-ID MD LOAD MD SYN 1000P C915 1000P C914 49 50 51 52 53 54 55 56 58 59 60 61 62 63 64 65 C983 0.1 1000P C981 1000P C982 3 2 1 VR981-2VR901-2 VR901-1 R970

36、1K + C971 10u16 100P C970 100 R971 29 R924 10K 10K R972 470K R923 10K R920 470K 10K 3 21 INOUT GND R906 220K0.1 C906 + C907 1u50 77 76 75 74 73 70 69 68 67 71 68P C904 12P C905 33 31 RA928 1K C903 0.1 C902 0.1 C901 0.1 C910 0.1 R902 10K R901 92 R940 47K 93 R941 47K 94 R942 47K 95 R943 47K 96 R944 47

37、K 97 10 14 15 16 18 20 21 23 29 30 RA927 1K RA919 1K RA925 1K RA926 1K 0.01 C922 C923 0.01 RA918 1K RA916 1K RA914 1K 4.7M R910 1.8K R909 1K RA933 1K RA931 1K RA930 RA913 1K RA912 1K RA908 1K RA902 1K RA903 1K RA904 1K 6.8K R904 12K R903 R905 12K R969 10K R968 10K 3.9K R959 1.2K R955 1K R954 1.5K R9

38、56 1.8K R957R958 2.7K 1K R950 1.2K R951 1.5K R952 1.8K R953 15 14 16 18 20 21 23 31 30 33 44 43 42 41 24 23 21 22 20 19 17 16 15 14 13 12 11 18 10 9 8 7 6 5 4 3 2 1 11 10 2 1 3 12 9 8 7 6 5 4 3 2 1 72 74 73 P6 P5 P4 76 75 78 77 P2 P1 P26 80 79 82 81 P28 P29 P30 P27 84 83 86 85 IC NX NX NX 88 87 89 N

39、X NX NX NP P3 91 93 92 NP F1 F1 F1 94 90 23 5G 22 6G 21 7G 20 8G 19 9G 18 10G 17 11G 16 12G 15 13G 14 14G 13 15G 12 P36 11 P35 10 P34 9 P33 8 P32 7 P31 6 IC 5 NP 4 NP 3 F1 2 F1 1 F1 VREF VEE USEG19 USEG20 USEG21 USEG22 USEG23 USEG24 AVSS DFS0/DFS1 (MD) DSTB P-CNT P-IN (MD) LO/EJ (MD)MD DATA (MD) K-D

40、ATA (MD) DSCK DAC DATA/EX DAC CLK/EX DAC MODE DIG SEL 2 DIG SEL 1 JCG AD INI/MUTE IN KEY4 KEY3 KEY2 KEY1 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 XCOUT XCIN RESET P MUTE RX-IN P OUT 37 36 35 34 33 32 31 92 93 94 95 96 97 98 99 100 + C920 10u16 L901 22uH + C909

41、 1u50 C908 1 10 TIMER RECRANDOM REMAIN TOTAL MONO LP PRGM -DATETRACKDISCTOC () () () () () () () () )( () ) ) ) ( ( ( ) ) ( ( () () () () () () () () () () () () () () () () () )( )( )( )( )( )( )( )( )( )( )( () () )( )( )( )( )( )( () () () () () () () () )( )( () () () () () () () () () () () ()

42、() )( () () PCB/SD 2P 97.11.29 2:05 AM y W 5 AOAPARATAVAXAQASAUAW -28.6V -28.6V -28.6V -28.6V -28.6V -28.6V -28.6V -28.6V -28.6V -19.0V -19.5V -28.6V -28.7V -26.9V -15.6V -19.5V -24.5V -13.5V -11.3V 0V -30.8V -30.8V -30.8V 5.1V -18.7V -18.3V -24.6V -26.7V -24.3V -19.0V -19.0V -26.5V -23.6V -26.5V -2

43、8.7V -19.5V -19.0V -26.5V -24.3V -16.2V -28.6V 0V 0V 0V 0V 2.1V 2.4V P4P3 P9 P14 P8 P13 P5 P10 P15 P1 P6 P11 P2 P7 P12 P19P18 P24 P29 P23 P28 P20 P25 P30 P34P33P35 P16 P21 P26 P31 P17 P22 P27 P32 FL901 (13G-15G) (1G-12G) : HL21043TH2UN970 DISPLAY SECTION CNW902 1 REMAIN 20 19 18 CLOCK 14 15 16 17 13

44、 12 11 10 9 7 8 PM AM TOTAL 6 5 4 3 2 ANODE CONNECTION OVER0dB-4-12DATETRACKDISCTOC RANDOM RECPRGM TIMER MONO LP 15-BT-37G:FL901 2SC2412KR:Q901,902 PST9127:IC902 IX0196AWZZ:IC901 u-COM ON/STANDBY I/ SW950 SW955 b c d e f g a 15G col 8a7a 1G2G3G4G5G6G SWITCH P.C.B. DM-3090 (2/2) IC901 45 5-3 1-4 2-4

45、3-4 4-4 5-4 1-5 2-5 3-5 4-5 5-5 1-6 2-6 3-6 4-6 5-6 1-7 2-7 3-7 4-7 5-7 5G 1-1 2-1 3-1 4-1 5-1 1-2 2-2 3-2 4-2 5-2 1-3 2-3 3-3 4-3 5-3 1-4 2-4 3-4 4-4 5-4 1-5 2-5 3-5 4-5 5-5 1-6 2-6 3-6 4-6 5-6 1-7 2-7 3-7 4-7 5-7 6G 1-1 2-1 3-1 4-1 5-1 1-2 2-2 3-2 4-2 5-2 1-3 2-3 3-3 4-3 5-3 1-4 2-4 3-4 4-4 5-2 1-

46、3 2-3 3-3 4-3 5-3 1-4 2-4 3-4 4-4 5-4 1-5 2-5 3-5 4-5 5-5 1-6 2-6 3-6 4-6 5-6 1-7 2-7 3-7 4-7 5-7 3G 1-1 2-1 3-1 4-1 5-1 1-2 2-2 3-2 4-2 5-2 1-3 2-3 3-3 4-3 5-3 1-4 2-4 3-4 4-4 5-4 1-5 2-5 3-5 4-5 5-5 1-6 2-6 3-6 4-6 5-6 1-7 2-7 3-7 4-7 5-7 4G 1-1 2-1 3-1 4-1 5-1 1-2 2-2 3-2 4-2 5-2 1-3 2-3 3-3 4-3

47、5-6 1-7 2-7 3-7 4-7 5-7 11G 1-1 2-1 3-1 4-1 5-1 1-2 2-2 3-2 4-2 5-2 1-3 2-3 3-3 4-3 5-3 1-4 2-4 3-4 4-4 5-4 1-5 2-5 3-5 4-5 5-5 1-6 2-6 3-6 4-6 5-6 1-7 2-7 3-7 4-7 5-7 12G 1-1 2-1 3-1 4-1 5-1 1-2 2-2 3-2 4-2 5-2 1-3 2-3 3-3 4-3 5-3 1-4 2-4 3-4 4-4 5-4 1-5 2-5 3-5 4-5 5-5 1-6 2-6 3-6 4-6 5-6 1-7 2-7 3-7 4-7 5-7 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31 P32 P33 P34 P35 P36 EEUROPE R902 12K DESTINATION COUNTRY JAPANJ ABB. 3.9K U.K.T 6a 5a 2a8a 1G 1-1 2-1 3-1 4-1 5-1 1-2 2-2 3-2 4-2 5-2 1-3 2-3 3-3 4-3 5-3 1-4 2-4 3-