Mitsubishi DD-4021 Service Manual
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Mitsubishi DD-4021 Service Manual

Mitsubishi DD-4021 Service Manual

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SPECIFICATIONS .......................................................................................................................................... 1-1-1
LASER BEAM SAFETY PRECAUTIONS........................................................................................................ 1-2-1
IMPORTANT SAFETY PRECAUTIONS .......................................................................................................... 1-3-1
STANDARD NOTES FOR SERVICING .......................................................................................................... 1-4-1
CABINET DISASSEMBLY INSTRUCTIONS ................................................................................................... 1-5-1
BLOCK DIAGRAMS ........................................................................................................................................ 1-6-1
SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS ................................................................................. 1-7-1
WAVEFORMS.................................................................................................................................................. 1-8-1
WIRING DIAGRAM.......................................................................................................................................... 1-9-1
SYSTEM CONTROL TIMING CHARTS ........................................................................................................ 1-10-1
IC PIN FUNCTION DESCRIPTIONS..............................................................................................................1-11-1
LEAD IDENTIFICATIONS.............................................................................................................................. 1-12-1
EXPLODED VIEWS....................................................................................................................................... 1-13-1
MECHANICAL PARTS LIST .......................................................................................................................... 1-14-1
ELECTRICAL PARTS LIST ........................................................................................................................... 1-15-1
MITSUBISHI ELECTRIC
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
Copyright © 2001 Mitsubishi Digital Electronics America, Inc.
Service
Manual

TABLE OF CONTENTS

9351 Jeronimo Road, Irvine, CA 92618-1904
All Rights Reserved
DVD PLAYER
MODEL
DD-4021
2001

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  • Page 1: Table Of Contents

    LEAD IDENTIFICATIONS..........................1-12-1 EXPLODED VIEWS............................1-13-1 MECHANICAL PARTS LIST .......................... 1-14-1 ELECTRICAL PARTS LIST ........................... 1-15-1 MITSUBISHI ELECTRIC MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC. 9351 Jeronimo Road, Irvine, CA 92618-1904 Copyright © 2001 Mitsubishi Digital Electronics America, Inc. All Rights Reserved...
  • Page 2 HOW TO INITIALIZE THE SETUP MENU After turning the power ON, without a disc in the tray, press the "1," "2," "3," "4," "DISPLAY" and "ENTER" buttons on the remote control unit in this order. Then, after turning the power OFF temporarily, turn the power ON again to intialize the Setup Menu.

  • Page 3: Specifications

    SPECIFICATIONS ITEM CONDITIONS UNIT NOMINAL LIMIT 1 Video Output 75 ohm load 2 Optical Digital Out 3 Audio(PCM) 3-1. Output Level 1kHz 0dB Vrms 3-2. S/N 3-3. Freq. Response ± 2 fs=48kHz 20~22kHz ± 2 fs=44.1kHz 20~20 kHz 3-4. THD+N 1 kHz 0dB 0.005 NOTES:...

  • Page 4: Laser Beam Safety Precautions

    LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30cm away from the pickup lens when the diode is turned on.

  • Page 5: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS I. Also check areas surrounding repaired locations. Product Safety Notice J. Use care that foreign objects (screws, solder drop- Some electrical and mechanical parts have special lets, etc.) do not remain inside the set. safety-related characteristics which are often not evi- K.
  • Page 6 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original positions. Chassis or Secondary Conductor Afterwards, do the following tests and confirm the speci- fied values to verify compliance with safety standards.

  • Page 7: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC a. The output pin of the 3 pin Regulator ICs is indicated 1. Removal as shown. With Hot-Air Flat Pack-IC Desoldering Machine: (1) Prepare the hot-air flat pack-IC desoldering ma- Top View Bottom View chine, then apply hot air to the Flat Pack-IC (about...
  • Page 8 With Soldering Iron: soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) (1) Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux (5) Release the flat pack-IC from the CBA using tweez- which is applied to all pins of the flat pack-IC, you ers.
  • Page 9 2. Installation Instructions for Handling Semiconductors (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you Electrostatic breakdown of the semiconductors may can install a replacement flat pack-IC more easily. occur due to a potential difference caused by electro- (2) The "...

  • Page 10: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart 1 : Identification (location) No. of parts in the figures This flowchart indicates the disassembly steps to gain 2 : Name of the part access to item(s) to be serviced. When reassembling, 3 : Figure Number for reference follow the steps in reverse order.
  • Page 11 (S-1) [1] Top Cover (S-3) (S-3) (S-2) (S-1) [5] DVD Mecha [4] PCB Holder (S-1) CN201 Fig. 1 CN001 Fig. 4 Tray Panel (L-2) (L-1) (L-1) Short the copper pattern by soldering Slide [2] Front Assembly (L-3) Pickup Unit Fig. 2 DVD Mecha View for A Bottom View...
  • Page 12 [6] AV CBA (S-5) (S-6) (S-5) CN501 (S-6) CN701 (S-5) (S-6) (S-4) (S-4) (L-5) [7] DVD Main CBA Unit Fig. 6 (S-7) [8] Rear Panel Fig. 7 1-5-3 E5540DC...

  • Page 13: Block Diagrams

    BLOCK DIAGRAMS System Control Block Diagram IC400 IC601 (FRONT END PROCESSOR) (DVD HOST PROCESSOR) TREV TREV TOUT TOUT IC603 TOUT (MEMORY) SCLKH FROM/TO SCLKH SDATA RF SIGNAL SDATA PROCESS /SERVO MUTE 99 MUTE BLOCK DIAGRAM 100 PS HINT 51 HINT 95 HCS RDY-HIF RDY-HIF...
  • Page 14 RF Signal Process/Servo Block Diagram RF(VIDEO/AUDIO) SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL SLIDE SERVO SIGNAL DISK SERVO SIGNAL MONREF TP001 TP002 MONREP MAIN CBA UNIT IC001 (RF SIGNAL PROCESS) PICK-UP UNIT NRZN DATA SLICER AGC AMP NRZP ASYMMETRY PROGRAMMABLE EQ CONTROL DETECTOR CN001...
  • Page 15 DVD Signal Process Block Diagram RF(VIDEO/AUDIO) SIGNAL DATA(VIDEO/AUDIO) SIGNAL DATA(VIDEO) SIGNAL DATA(AUDIO) SIGNAL MAIN CBA UNIT IC300 (DVD SIGNAL PROCESS) DATA NRZN VIDEO/AUDIO SLICER HD0-HD7 TO VIDEO BLOCK DEMODULATOR INTERFACE NRZP FROM RF SIGNAL PROCESS/SERVO BLOCK DIAGRAM DEFECT MEMORY MANAGER HD0-HD8 INTERFACE JITTER...
  • Page 16 Video Block Diagram DATA(VIDEO) SIGNAL DATA(AUDIO) SIGNAL VIDEO SIGNAL AUDIO SIGNAL DATA(VIDEO/AUDIO) SIGNAL DATA(VIDEO) SIGNAL IC601 (DVD HOST PROCESSOR) CACHE SUBSYSTEM FROM PCM-SCLK PARA0 CENTRAL FRONT-END DVD SIGNAL PCM-DATA0 PARA0-PARA7 COMMAND & LINK PROCESS PARA7 PCM-DATA1 PORT INTERFACE BLOCK AUDIO PCM-DATA2 TO AUDIO DECODER...
  • Page 17 Audio Block Diagram DATA(AUDIO) SIGNAL VIDEO SIGNAL AUDIO SIGNAL CN701 CN1601 Q1351 JK1202 SPDIF DIGITAL AUDIO OUT IC801 (AUDIO DAC) IC1201 (AMP) WF12 WF10 WF11 JK1201 SPDIF CN701 CN1601 4X/8X L-CH PCM-SCLK AUDIO-L FROM ENPHANCED LPF+AMP AUDIO-L OVERSAMPLING PCM-DATA0 SERIAL VIDEO MULTI-LEVEL AUDIO-R...
  • Page 18 Power Supply Block Diagram CAUTION ! CAUTION Fixed voltage power supply circuit is used in this unit. FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, NOTE : If Main Fuse (F1001) is blown, check to see that all components in the REPLACE ONLY WITH THE SAME TYPE FUSE. The voltage for parts in hot circuit is measured using power supply circuit are not defective before you connect the AC plug to ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES...

  • Page 19: Schematic Diagrams / Cba's And Test Points

    SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Note: Standard Notes 1. Do not use the part number shown on these draw- Warning ings for ordering. The correct part number is shown Many electrical and mechanical parts in this chassis in the parts list, and may be slightly different or have special characteristics.
  • Page 20 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQES D’INCELE N’UTILISER QUE DES FUSIBLE DE MEMO TYPE.
  • Page 21 Main 1/5 Schematic Diagram 1-7-3 1-7-4 1-7-5 E5542SCM1...
  • Page 22 Main 2/5 Schematic Diagram 1-7-6 1-7-7 1-7-8 E5542SCM2...
  • Page 23 Main 3/5 Schematic Diagram 1-7-9 1-7-10 1-7-11 E5542SCM3...
  • Page 24 Main 4/5 Schematic Diagram 1-7-12 1-7-13 1-7-14 E5542SCM4...
  • Page 25 Main 5/5 Schematic Diagram 1-7-15 1-7-16 E5542SCM5...
  • Page 26 AV 1/3 Schematic Diagram CAUTION CAUTION ! FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, Fixed voltage power supply circuit is used in this unit. REPLACE ONLY WITH THE SAME TYPE FUSE. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES are not defective before you connect the AC plug to the AC power supply.
  • Page 27 AV 2/3 Schematic Diagram 1-7-19 1-7-20 E5542SCAV2...
  • Page 28 AV 3/3 & Function Schematic Diagram FL2001 MATRIX CHART VIDEO 1-7-21 1-7-22 E5542SCAV3...
  • Page 29 AV CBA Top View CAUTION ! Fixed voltage power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.
  • Page 30 AV CBA Bottom View Switch CBA Switch CBA Top View Bottom View BE5500F01016-B CAUTION ! Fixed voltage power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.
  • Page 31 Function CBA Top View Function CBA Bottom View 1-7-27 1-7-28 BE5560F01013...

  • Page 32: Waveforms

    WAVEFORMS NOTE: Pin 5 of IC001 Pin32 of IC601 Pin2 of IC801 Input CD: 1KHz PLAY (WF8~WF11) DVD: BLUE BACK (STOP MODE) (WF1~WF7) MONREF 0.2V 0.2usec VIDEO-Y 0.2V 20usec PCM-DATA0 0.2usec Pin 6 of IC001 Pin33 of IC601 Pin1 of IC801 WF10 MONREP 0.2V...

  • Page 33: Wiring Diagram

    WIRING DIAGRAM AUDIO VIDEO-Y VIDEO-U VIDEO-V VIDEO AUDIO DIGITAL S-VIDEO AC CORD OUT(L) OUT(R) AUDIO OUT CN2001 CN2003 KEY-4 KEY-3 KEY-2 FUNCTION CBA KEY-1 (BE5501F01012) AV CBA (BE5500F01016-A) JP1003 JP1004 CN1001 CN1601 KEY-2 SWITCH CBA (BE5500F01016-B) CN501 CN701 MAIN CBA UNIT CN201 CN301 CN001...

  • Page 34: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS Tray close ~ Play / Play ~ Tray open Eject key on Eject key on Tray close Play Tray open Disc Rotation LSW2 LSW1 4.4s (TL123) 700ms 2.0s 1.2s ( TP122 ) 1.7s ( TL122 ) 1-10-1 E5540TI...

  • Page 35: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS IC2003 ( PT6315 ) Signal Function Name Signal Function Name N.U. Not Used N.U. Not Used N.U. Not Used N.U. Not Used Grid Output Oscillator Input DOUT Serial Data Output Serial Data Input Clock Input Serial Interface Strobe Key Data 1 Input Power Supply Key Data 2 Input...

  • Page 36: Lead Identifications

    LEAD IDENTIFICATION 2SK2599 2SA1015-Y (TPE2) 2SC2785 (J, H, F) 2SC1815-Y (TPE2) KTC3199 (Y, GR) KTA1266 (Y) KRA110M 2SC1815-GR (TPE2) KTA1273 (Y) 2SA966 (Y) KRC110M-AT 2SC2236-Y-TPE6,C BA1L3Z-T KTC3205(Y) BN1L3Z (P) E C B E C B KIA431 AN1431-(NSC) PT6315 NJM4558D R A K LTV-817B-F LTV-817C-F BA033ST-V5...

  • Page 37: Exploded Views

    EXPLODED VIEWS Cabinet 2L011 2L011 See Electrical Parts List for parts with this mark. Some Ref. Numbers are not in sequence. 2L021 2L021 2L081 2L011 2L021 DVD Main 2L081 CBA Unit 2L031 Function CBA 2L031 2L031 2L031 JK1202 W1601 2L031 JK1401 F1001 JK1201...
  • Page 38 Packing Unit 1-13-2 E5542EX...

  • Page 39: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a  have special characteristics important to safety. Before replacing any of these components, read care- fully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing.

  • Page 40: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No.  have special characteristics important to safety. CERAMIC CAP. F Z 0.022µF/50V CCD1JZS0F223 Before replacing any of these components, read care- C1034 ELECTROLYTIC CAP. 220µF/6.3V M CE0KMASDL221 fully the product safety notice in this service manual.
  • Page 41 Ref. No. Description Part No. Ref. No. Description Part No. D1003 RECTIFIER DIODE BA157 or NDQZ000BA157 PHOTO COUPLER PS2501-1M or QPEM0PS25011 FAST RECOVERY DIODE ERA18-04 QDPZ0ERA1804 PHOTOCOUPLER PS2501-1W or QPEW0PS25011 D1004 RECTIFIER DIODE 1N4005 or NDQZ001N4005 PHOTOCOUPLER PS2501-1D or QPED0PS25011 RECTIFIER DIODE 1N4005 ND8Z001N4005 PHOTOCOUPLER PC817(A) or...
  • Page 42 Ref. No. Description Part No. Ref. No. Description Part No. TRANSISTOR KTC3199(Y) or NQSY0KTC3199 TRANSISTOR KTA1266(Y) NQSY0KTA1266 TRANSISTOR KTC3199(GR) NQS10KTC3199 Q1445 TRANSISTOR 2SA1015-Y(TPE2) or QQSY02SA1015 Q1010 TRANSISTOR 2SC2236-Y-TPE6,C or QQSY02SC2236 TRANSISTOR KTA1266(Y) NQSY0KTA1266 TRANSISTOR KTC3205(Y) NQSY0KTC3205 Q1461 TRANSISTOR 2SC2785(J) or QQSJ02SC2785 Q1201 TRANSISTOR 2SC2785(J) or...
  • Page 43 Ref. No. Description Part No. Ref. No. Description Part No. METAL OXIDE FILM RES. 3W J 1.8 Ω or CHIP RES.(1608) 1/16W J 39k Ω or R1030 RN031R8ZU001 R1208 RRXGJR5Z0393 METAL OXIDE FILM RES. 3W J 1.8 Ω CHIP RES.(1608) 1/10W J 39k Ω RN031R8KE009 RRXAJR5Z0393 CARBON RES.
  • Page 44 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W G 220 Ω CARBON RES. 1/4W J 360 Ω RCX4GATZ0221 R1456 RCX4JATZ0361 CHIP RES.(1608) 1/16W J 18k Ω or CARBON RES. 1/4W J 360 Ω R1401 RRXGJR5Z0183 R1457 RCX4JATZ0361 CHIP RES.(1608) 1/10W J 18k Ω...
  • Page 45 Ref. No. Description Part No. CHIP RES.(1608) 1/10W J 10k Ω RRXAJR5Z0103 CARBON RES. 1/6W J 10 Ω or R2037 RCX6JATZ0100 CARBON RES. 1/4W J 10 Ω RCX4JATZ0100 CHIP RES.(1608) 1/16W 0 Ω or R2054 RRXGZR5Z0000 CHIP RES.(1608) 1/10W 0 Ω RRXAZR5Z0000 CHIP RES.(1608) 1/16W 0 Ω...
  • Page 46 Printed in U.S.A.

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