background image

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

defeated.

AVOID DIRECT EXPOSURE TO BEAM.

Illustration is DMF-3020.

* Refer to parts list on page 23.

STEREO MINIDISC RECORDER

DMF-3020/3020

(

S

)

/5020

MD-203

SERVICE MANUAL

©

1998-9/B51-5480-00 (K/K) 2945

REC      IN

R

L

R

L

PLAY   OUT
(VARIABLE)

PLAY

OUT

OPT.

COAX.

REC

IN

2  COAX.

1  OPT.

LINE

SYSTEM

CONTROL

DIGITAL

MIN

REC LEVEL

PHONES

ENTER

/TIME DISPLAY

REC MODE/CHARAC.

SET

REC INPUT

MONITOR

/DELETE

STANDBY

POWER

JOG DIAL

TITLE INPUT

EDIT/SPACE

MAX

DISC LO ADING ME CHANISM

STEREO MINIDISC RECORDER

1

3

7

¡

0

ON  

– 

OFF

TIMER

REC OFF PLAY

OUTPUT

LEVEL

4

¢

REC

Phone jack *
(E11-)

Knob
(K29-7536-04)

Panel
(A60-1530-11)

Indicator
(B12-0353-04)

Knob
(K27-2178-04)

Phono jack
(E63-1065-05)

Metallic cabinet
(A01-3635-01)

Miniature phono jack
(E11-0293-05)

Phono jack
(E63-0160-05)

Optic receiving module
(W02-1181-05)

Oscillating module
(W02-1114-05)

AC power cord * 
(E30-)

Power cord bushing
(J42-0083-05)

Filter
(B11-0376-04)

Front glass
(B10-3426-03)

Escutcheon *
(B07-)

Knob 
(K29-7412-02)

Knob
(K29-7412-02)

Knob
(K29-7354-14)

KENWOOD badge   
(B43-0302-04) 

Refer to 1050MD/DM-5090/DM-9090 service manual
(B51-5387-00) if you see the mechanism test mode.

DMF-5020(K) 

COVER1,1P( 

 

98.12.9 

16:39 

  y [ W  2

Summary of Contents for DMF-3020

Page 1: ...ES ENTER TIME DISPLAY REC MODE CHARAC SET REC INPUT MONITOR DELETE STANDBY POWER JOG DIAL TITLE INPUT EDIT SPACE MAX DISC LOADING MECHANISM STEREO MINIDISC RECORDER 1 3 7 0 ON OFF TIMER REC OFF PLAY OUTPUT LEVEL 4 REC Phone jack E11 Knob K29 7536 04 Panel A60 1530 11 Indicator B12 0353 04 Knob K27 2178 04 Phono jack E63 1065 05 Metallic cabinet A01 3635 01 Miniature phono jack E11 0293 05 Phono ja...

Page 2: ...the following procedure to reset the microprocessor and return it to normal condition With the POWER key left to ON unplug the power cord from the power outlet then while holding the eject 0 key depressed plug the power cord again Please note that resetting the microprocessor clears the contents stored in it returns the microprocessor to the condition when it left the factory Before transporting o...

Page 3: ... to select the editing mode or a track number ENTER TIME DISPLAY key ENTER For use in executing the editing and title input operations TIME DISPLAY Press to switch the time and title display modes EDIT SPACE key EDIT Press to switch the editing mode ON OFF SPACE Press to insert a blank space character during the title input operation OUTPUT LEVEL DOWN fi key Use this to decrease the volume of the ...

Page 4: ...EL MONITOR REMOTE CONTROL UNIT RC M0302 CURSOR TITLE CHARACTER SEARCH CHARACTER fi INPUT SEARCH 2 3 4 5 6 7 1 4OUTPUT LEVEL fi keys Use these to adjust the output level and the volume of the headphones 3Character editing keys TIME DISPLAY key Press to switch the time and title display modes CHARA Character P MODE Play Mode key CHARA Press to select a character group dur ing the title input operati...

Page 5: ...JOG REC SW REFRECT SW PROTECT SW START LIMIT SW DISC IN SW BUFFER IC37 REG 3 3V DIGITAL 5V 3 3 LOADING MOTOR FEED MOTOR Q7 LASER DRIVE APC DISC MOTOR DISC IC35 LOADING MOTOR DRIVER TA8409S PHONES OUT IN ANALOG COAX IN OPT IN COAX OUT OPT OUT CONTROL SYSTEM SL16 DIGTAL INPUT OUTPUT DIGITAL TEMP DET AC u COM VDD u COM 5V 33V FL AC DIGITAL IC5 HEAD RECORDING CONTROL REMOTE 5 0 5 0 3 3 E PROM 2 HEAD D...

Page 6: ...d 43 RESET I Microprocessor hard reset 44 REM I Remocon signal input terminal 45 XINT I Input port of interrupted status from CXD2652AR IC2 46 CE I Microprocessor chip enable H Enable L disable 47 SQSY I Input port of sub code Q from CXD2652AR IC2 48 DQSY I U bit of digital IN SUB Q sync input of CD format from CXD2652AR IC2 49 DDQSY I N C 50 MNT1 I Input port of track jump detection from CXD2652A...

Page 7: ... INPUT None all lighting Key Function PLAY CPLAY MID REC CREC MID STOP STOP CPLAY CREC 2time push ERROR RATE PIN PIN NAME I O DESCRIPTION 1 2 VCC1 ADC ANALOG POWER SUPPLY 3 VINR I RCH ANALOG INPUT 4 5 VREF1 2 REFERENCE VOLTAGE 1 2 6 VINL I LCH ANALOG INPUT 7 RST I RESET L ON 8 ML I CONTROL DATA INPUT LOAD STOROBE 9 SYSCK I SYSTEM CLOCK INPUT256fs 384fs 512fs 10 LRCIN I SAMPLING CLOCK INPUT 11 BCKI...

Page 8: ...8 A B D C E 2 1 3 5 7 4 6 Refer to the schematic diagram for the value of resistors and capacitors PC BOARD Component side view DMF 5020 K COVER1 1P 98 12 916 41 y W 15 ...

Page 9: ...21 Q22 Q40 Q4 CN5 Q14 Q15 CN6 S20 D37 S8 S5 S4 S7 S6 S9 S2 S17 S3 S16 S15 S11 S10 S12 S14 S13 S1 CN4 IC6 CN11 CN10 X25 6180 00 A 5 X25 C 5 X25 D 5 POWER SUPPLY MI COM X25 E 5 REC VR X25 B 5 HEAD PHONE DAC H P AMP L P F J1 CODEC JOG DIAL POWER REC LEVEL PHONES OPT COAX COAX OPT SYSTEM CONTROL OUTPUT INPUT LINE DIGITAL REC IN DIGITAL PLAY OUT R96 R102 R136 R137R138 R133 R134 R135 R252 R250 R95 R62 R...

Page 10: ...105 0 01 6800P 1 3 2 5 4 C113 1 4700P C112 0 47 C132 R134 1K 150 R140 0 015 C131 C133 4700P R137 100 C135 0 1 L11 C136 6 3 100u 0 1 C191 C110 0 1 R144 100 R123 R125 100 100u6 3 C121 0 1 C123 6 3 1 2 0V TV 3 3V TEST 8 7 4 GND SDA SCL 5 0 1 C171 10K R170 10K R171 8 7 6 5 2 1 3 4 R127 100 C22 2P C21 2P C146 0 1 R173 1M L3 100uH C160 10u10 C200 10 2 1 4 3 5 C143 C144 C142 R142 R143 C122 R121 100K 0 01...

Page 11: ...5 3 B GND 1 C187 100u 1 C195 100u C190 6 3 R124 100 6 3 100 R120 W4 W3 W2 1 2 3 10 9 8 7 6 5 4 3 2 1 2 1 11 12 13 14 15 2 1 3 1 2 4 3 4 7K R1 R2 180 PHOTO SW REC SW SPDL SPDL NC 5V DISC IN SLED SLED REFRECT PROTECT GND STTLMT LOAD OUT LOAD IN 0 1 C196 B B 5V 5V 5V M 5V 5V 3 3V 5V H 5V H 5V 5V 5V 5V IC10 MDM 04 X29 2580 00 A 2 X29 B 2 A B DMF 3020 5020 1 3 5V 1 1V 3 3V 5 1V M O N K L N Y22 7872 70 ...

Page 12: ...4 34 GND 7 6 8 5 4 2 3 1 11 10 9 13 12 14 VCC 13 7 GND 6 5 4 3 2 8 9 10 12 11 1 14 VCC C49 1 3 5 31 36 65 12 8 2 13 50 47 48 45 32 21 11 13 9 1 3 5 33 16 18 19 28 27 24 23 25 26 R43 1 8K R40 2 7K 4 7 VREF IN1 9 OUT1 8 GND VS 6 NC 5 OUT2 3 IN2 VCC 2 1 33K R61 12K R59 0 1 C51 57 44 74 75 72 4 5 55 56 54 53 3 7 R60 8 2K 100 R63 100 R62 R70 100K 63 70 13 11 9 1 3 5 17 R37 47K 79 0 01 C50 100K R45 1 2V...

Page 13: ... 24 23 22 21 20 19 18 17 16 15 14 13 VCC2 AGND1 AGND2 VCOM VOUTR VOUTL MC DEMO MD DEM1 ZERO 2OBT DIN VDD DGND 3 3V 10 R173 100u10 C109 4 7u50 C111 4 7u50 C112 1M R183 100P C127 100P C128 1M R184 2 2K R168 R169 1K 10 11 C113 1000P R166 100K R165 100K R167 470 10 R174 100u10 C115 4 7u35 C116 W76 C186 100P C185 W61 100P 18 17 100u10 C118 10 R175 W111 7 14 5 6 3 4 R176 1M 5P C172 R163 100P C171 100P C...

Page 14: ...204 13K 6 8K NO YES W61 76 136 154 R205 36 36 D35 D42 31V 31V 31V 31V 16V 16V NO UNIT No 0 11 UNIT No 2 71 JAPAN J 0 00 47u16 C82 0 01 C121 10K R255 R256 10K C123 100P 100P C84 C124 0 01 CN10 CN11 16V 16V 4 7 R29 1 4W R234 33 1 4W 1 4W R236 33 1 4W R251 33 10K R7 1 25A P1 K1 CANADA U S A NO 0 11 150P 0 027 NO YES YES NO PCM3002E 125V 22K 47K C149 A UNIT No ABB COUNTRY DESTINATION D42 150 154 181 1...

Page 15: ...TINATION COUNTRY ABB D37 YES Q29 R238 YES 0 00 NO NO NO DESTINATION COUNTRY JAPAN UNIT No ABB J D37 Q29 R238 U K T1 EUROPE E 0 11 ABB CANADA DESTINATION COUNTRY U S A D37 NO 0 11 P1 UNIT No K1 NO NO R238 Q29 ABB EUROPE DESTINATION COUNTRY D37 NO 0 11 E1 UNIT No NO NO R238 Q29 B B 68u6 3 C60 S24 S23 S19 S17 S13 S16 S22 S25 S15 S18 S6 S10 S11 S8 S3 S4 S5 S3 S18 S32 S4 S19 S20 S21 S6 S5 S22 S7 S23 S8...

Page 16: ...279 05 N09 4145 05 19 3 30 17 39 9 20 28 6 31 33 25 38 18 32 2 37 7 24 1 4 34 21 48 10 47 5 27 26 15 16 22 36 35 12 23 41 48 LM DM FM PU 29 29 40 29 29 13 11 RH 8 849 42 B A 27 26 18 AE AF AG AH M1 7x4 5 ø2x4 ø2x8 ø2 6x6 BLK N39 1745 46 N82 2004 46 N89 2008 46 N89 2606 45 When assembling a mechanism adjust slit A and slit B of the main slider Ref No 18 and the main gear Ref No 27 The figure which ...

Page 17: ...N89 3030 46 N89 2606 45 X33 1100 00 Fx2 Kx2 K Jx2 Fx2 REC LEVEL PHONES X25 B 5 X25 D 5 X25 C 5 X25 E 5 X25 6182 71 A 5 H 743 Ex2 DMF 3020 5020 J G G G G J J F Dx2 Ex5 Ex5 Ex2 A A A Gx2 Gx2 H G G RC M0302 RC M0705 G G 721 766 G G PLAY OUT REC IN SYSYEM CONTROL DIGITAL POWER LINE X25 C 5 X25 D 5 Gx3 Gx3 627 707 765 703 625 615 606 606 760 602 602 601 630 620 650 650 614 616 648 613 614 605 612 633 6...

Page 18: ...Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components H10 7530 12 POLYSTYRENE FOAMED FIXTURE H10 7531 12 POLYSTYRENE FOAMED FIXTURE H25 0232 04 PROTECTION BAG 235X350X0 03 EK1P1 H25 0232 04 PROTECTION BAG 235X350X0 03 E1E2 H25 0651 04 PROTECTION BAG T1T2 H25 0661 04 PROTECTION BAG H50 3172 14 ITEM CARTON CASE ET1 H50 3173 04 ITEM CARTON CASE K1P1 H50 3174 1...

Page 19: ... critical components C105 106 CC73FCH1H070D CHIP C 7 0PF D T1E2 C107 CC73FSL1H102J CHIP C 1000PF J C108 CK45FF1H103Z CERAMIC 0 010UF Z C109 CE04KW1A101M ELECTRO 100UF 10WV C111 112 CE04KW1H4R7M ELECTRO 4 7UF 50WV C113 CC73FSL1H102J CHIP C 1000PF J C115 CE04KW1A101M ELECTRO 100UF 10WV C116 CE04KW1V4R7M ELECTRO 4 7UF 35WV C118 CE04KW1A101M ELECTRO 100UF 10WV C119 120 CE04KW1V100M ELECTRO 10UF 35WV C...

Page 20: ...FB2A104J CHIP R 100K J 1 10W R48 49 RK73FB2A272J CHIP R 2 7K J 1 10W R51 RK73FB2A104J CHIP R 100K J 1 10W R52 53 RK73FB2A182J CHIP R 1 8K J 1 10W R55 RK73FB2A331J CHIP R 330 J 1 10W R56 57 RK73FB2A471J CHIP R 470 J 1 10W R58 RK73FB2A103J CHIP R 10K J 1 10W R59 RK73FB2A123J CHIP R 12K J 1 10W R60 RK73FB2A822J CHIP R 8 2K J 1 10W R61 RK73FB2A333J CHIP R 33K J 1 10W R62 63 RK73FB2A101J CHIP R 100 J 1...

Page 21: ...orea M Other Areas indicates safety critical components L Scandinavia K USA P Canada R Mexico C China I Malaysia Y PX Far East Hawaii T Europe E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components R199 200 RK73FB2A750J CHIP R 75 J 1 10W R201 202 RK73FB2A102J CHIP R 1 0K J 1 10W R203 204 RK73FB2A123J CHIP R 12K J 1 10W EK1...

Page 22: ...10 2SD1819A Q R TRANSISTOR Q11 2SD2012 TRANSISTOR Q11 2SD2061 TRANSISTOR Q12 DTC113ZUA DIGITAL TRANSISTOR Q12 UN5219 DIGITAL TRANSISTOR Q13 2SA954 L K TRANSISTOR Q14 15 2SD1302 S T TRANSISTOR Q16 DTC124EUA DIGITAL TRANSISTOR Q16 UN5212 DIGITAL TRANSISTOR Q17 20 2SD1450 S T TRANSISTOR Q21 2SC1845 F E TRANSISTOR Q22 2SA992 F E TRANSISTOR Q23 2SC4081 R S TRANSISTOR Q23 2SD1819A Q R TRANSISTOR Q24 2SA...

Page 23: ...ussia H Korea M Other Areas indicates safety critical components L3 4 L33 0369 05 CHOKE COIL 100UH L5 11 L79 1216 05 LINE FILTER R103 RK73FB2A102J CHIP R 1 0K J 1 10W R104 RK73FB2A103J CHIP R 10K J 1 10W R105 RK73FB2A472J CHIP R 4 7K J 1 10W R106 RK73FB2A335J CHIP R 3 3M J 1 10W R107 RK73FB2A474J CHIP R 470K J 1 10W R108 109 RK73FB2A102J CHIP R 1 0K J 1 10W R110 RK73FB2A103J CHIP R 10K J 1 10W R11...

Page 24: ...t Hawaii T Europe E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components L Scandinavia K USA P Canada R Mexico C China I Malaysia Y PX Far East Hawaii T Europe E Europe G Germany V China Shanghai Y AAFES Europe X Australia Q Russia H Korea M Other Areas indicates safety critical components 32 2B G01 3966 08 EXTENSION SP 33...

Page 25: ...g Playing rotation Approx 400 rpm 900 rpm CLV D A conversion D A conversion 1 Bit 24 Bit D R I V E conversion Oversampling 8 fs 352 8 kHz A D converter A D converter 5 th order sigma delta conversion Sampling frequency 44 1 kHz Digital audio performance Frequency responce playback mode 8 Hz 20 kHz 1 dB Signal to noise ratio playback mode More than 105 dB Dynamic range playback mode More than 94 dB...

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