Mitsubishi DD-8050, Service Manual

Page 1: ...S 1 7 1 SCHEMATIC DIAGRAMS CBA S AND TEST POINTS 1 8 1 WAVEFORMS 1 9 1 WIRING DIAGRAM 1 10 1 FIRMWARE RENEWAL MODE 1 11 1 SYSTEM CONTROL TIMING CHARTS 1 12 1 IC PIN FUNCTION DESCRIPTIONS 1 13 1 LEAD IDENTIFICATIONS 1 14 1 EXPLODED VIEWS 1 15 1 MECHANICAL PARTS LIST 1 16 1 ELECTRICAL PARTS LIST 1 17 1 MITSUBISHI ELECTRIC MITSUBISHI DIGITAL ELECTRONICS AMERICA INC 9351 Jeronimo Road Irvine CA 92618 ...

Page 2: ...Manufactured under license from Dolby Laboratories Dolby and the double D symbol are trademarks of Dolby Laboratories ...

Page 3: ...Load imp 100 k ohm 4 Ambient Temperature 25 C ITEM CONDITIONS UNIT NOMINAL LIMIT 1 Video Output 75 ohm load Vpp 1 0 0 1 2 Optical Digital Out dBm 18 3 Audio PCM 3 1 Output Level 1 kHz 0 dB Vrms 2 0 3 2 S N dB 120 3 3 Freq Response DVD fs 48kHz 0 5dB Hz 20 22 k CD fs 44 1kHz 0 5dB Hz 20 20 k 3 4 THD N DVD 1 kHz 0dB 0 004 CD 1 kHz 0dB 0 0045 ...

Page 4: ...ocation 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 Do not look directly at the laser beam Caution Use of controls and adjustments or doing procedures other than those specified herein may result in hazardous radiation exposure Do not look directly at the laser beam coming from the pickup or allow i...

Page 5: ...te especially 1 Wires covered with PVC tubing 2 Double insulated wires 3 High voltage leads D Use specified insulating materials for hazardous live parts Note especially 1 Insulation tape 2 PVC tubing 3 Spacers 4 Insulators for transistors E When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before solder ing F Observe that the wir...

Page 6: ...ference only Be sure to confirm the precise values 2 Leakage Current Test Confirm the specified or lower leakage current between B earth ground power cord plug prongs and externally exposed accessible parts RF termi nals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method ...

Page 7: ...chine then apply hot air to the Flat Pack IC about 5 to 6 seconds Fig S 1 1 2 Remove the flat pack IC with tweezers while apply ing the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC from the CBA using twee z...

Page 8: ...y one using a sharp pin or wire to which solder will not adhere iron wire When heating the pins use a fine tip soldering iron or a hot air desoldering machine Fig S 1 4 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC ...

Page 9: ...s Fig S 1 6 Note When using a soldering iron care must be taken to ensure that the flat pack IC is not being held by glue When the flat pack IC is removed from the CBA handle it gently because it may be damaged if force is applied 2 Installation 1 Using desoldering braid remove the solder from the foil of each pin of the flat pack IC on the CBA so you can install a replacement flat pack IC more ea...

Page 10: ... to remove any static electricity that may be charged on the body 2 Ground for Workbench 1 Be sure to place a conductive sheet or copper plate with proper grounding 1MΩ on the workbench or other surface where the semi conductors are to be placed Because the static electricity charge on clothing will not escape through the body ground ing band be careful to avoid contacting semi con ductors with yo...

Page 11: ... Button Enlarges part of a DVD reproduced image 15 REV Button Fast reverse playback to a desired point 16 SEARCH MODE Button Press to locate a desired point 17 REPEAT Button Repeats playback of the current disc title chapter or track 18 MODE Button Activates program playback or random playback mode when playing DVD Audio CDs Super Audio CDs or MP3 JPEG Picture CD WMA Also Sets Image Quality settin...

Page 12: ... up when playing MULTI CH AREA on Super Audio CD Displays a type of the disc which is inserted on the tray DVD disc DVD DVD audio VCD Audio CD MP3 JPEG PictureCD WMA Lights up when the inserted disc is being played back Lights up when the playback is slow mode Displays how long the current title or track has been played back When a chapter or track is switched the number of a new title chapter or ...

Page 13: ...tic charge accumulated on cloth human body etc during unpacking or repair work To avoid damage of pickup follow next procedures 2 1 Short the three short lands of FPC cable with sol der before removing the FFC cable CN201 from it If you disconnect the FFC cable CN201 the laser diode of pickup will be destroyed Fig D4 2 2 Remove Screw S 3A and two Screws S 3B Then disconnect Connectors CN301 CN401 ...

Page 14: ...D2 2 Front Assembly L 2 L 3 L 1 L 1 L 1 S 2 3 Reinforce Plate 4 DVD Main CBA Unit S 3B S 3B S 3A CN201 CN301 CN501 CN401 CN601 A Short the three short lands by soldering Either of two places Connector View for A Fig D3 Fig D4 5 Rear Panel S 4 S 4 S 5 ...

Page 15: ... 8 S 9 11 Jack PCB Holder 9 Main PCB Holder 10 5 1ch Amp CBA 8 DVD Mecha A View for A Rotate this roulette in the direction of the arrow HOW TO EJECT MANUALLY Method 1 1 Remove the Top Case Reinforce Plate and DVD Main CBA Unit 2 Rotate the roulette in the direction of the arrow as shown below ...

Page 16: ...e g screwdriver HOW TO EJECT MANUALLY Method 2 1 Turn the unit over 2 Insert the shaft less than a diameter of 3 mm e g screw driver straightly into the opening as shown 3 Turn the shaft along with the opening clockwise 4 Repeat steps 2 and 3 until the tray will open 5 Pull the tray slowly with a hand ...

Page 17: ...AMP 15 16 14 13 12 11 17 18 23 6 4 5 3 1 2 25 24 27 26 81 SL AMP 72 FG IN 143 SP ROT 3 3V 146 FD OFST 139 TD OFST RESET IC461 2 1 3 3V TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM TO SACD BLOCK DIAGRAM DRIVE CBA FG CBA DVD MAIN CBA UNIT 1 2 6 7 5 3 13 14 12 9 8 10 82 FP STB 60 FP DIN 61 FP DOUT 67 REMOTE 59 FP CLK CN401 22 21 23 20 24 CN1001 2 28 27 1 12 7 8 9 10 11 REMOTE SENSOR...

Page 18: ... Y I VIDEO C VIDEO Cr Pr VIDEO Cb Pb 177 SD0 SPDIF 176 SD1 175 SD2 174 SD3 171 SD4 170 SD5 169 SD6 SD0 SPDIF SD1 SD2 SD3 SD4 SD5 SD6 163 SD7 187 XSHD 186 XSAK 185 SDCK XSHD XSAK SDCK 189 RESET 168 XSRQ 188 SDEF RESET XSRQ SDEF 88 PSP WCK 55 SACD READY 58 SACD DATA PSP WCK SACD READY SACD DATA 54 SACD LATCH SACD LATCH SACD 68 SACD 152 151 SDRAM DATA 0 31 SDRAM ADDRESS 0 11 SDRAM ADDRESS 0 11 217 23...

Page 19: ...RIVER 2dB AMP LPF DRIVER 11 4dB AMP 4dB AMP 2dB AMP LPF DRIVER 6 10 4dB AMP 2dB AMP LPF DRIVER 8 3 13 IC1403 VIDEO DRIVER 4dB AMP 2dB AMP LPF DRIVER 2dB AMP DRIVER 4dB AMP 2dB AMP LPF DRIVER 3 1 5 6 7 3 3 VIDEO Y I CN601 CN1601 VIDEO Y I W F 2 VIDEO SIGNAL TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM DVD MAIN CBA UNIT AV CBA COMPOSITE VIDEO OUT VIDEO Cb Pb OUT VIDEO Y OUT VIDEO Cr Pr OUT JK1404 ...

Page 20: ... R MUTE 10 10 SURROUND L MUTE 8 8 SURROUND R MUTE 6 6 CENTER MUTE 14 14 A L MUTE 4 4 SUB WOOFER MUTE 16 16 A MUTE2 3 3 A MUTE 2 2 M MUTE MUTE ON 1 7 2 6 MUTE ON IC7301 Q7504 Q7503 AMP FRONT L OUT FRONT R OUT Q7501 JK7101 Q7502 MUTE ON 1 7 2 6 Q7552 Q7551 MUTE ON IC7401 Q7404 Q7403 AMP SURROUND L OUT SURROUND R OUT Q7401 Q7402 MUTE ON 1 7 2 6 MUTE ON IC7501 Q7308 Q7307 AMP CENTER OUT SUB WOOFER OUT...

Page 21: ... 24 27 32 2 3 5 6 8 9 11 12 55 56 ICM03 ICM29 ICM04 1 3 5 2 4 ICM02 1 2 4 2 D F F 11 9 12 D F F 3 5 2 D F F 11 9 12 D F F 3 5 2 D F F 11 9 12 D F F 3 5 2 D F F 11 9 12 D F F 3 5 2 D F F 11 9 12 D F F 3 6 2 D F F 11 9 12 ICM27 1 2 4 ICM31 2 4 ICM28 1 2 4 ICM23 ICM24 1 2 4 ICM22 1 2 4 ICM18 ICM19 1 2 4 ICM17 1 2 4 ICM13 ICM14 1 2 4 ICM12 1 2 4 ICM08 ICM09 1 2 4 ICM07 1 2 4 ICM30 1 2 4 ADAC MD ADAC M...

Page 22: ...1008 F2 NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal REPLACE FUSE AS MARKED Ce symbole reprèsente un fusible à fusion rapide 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 MÊME TYPE RISK OF FIRE This symbol means fast operat...

Page 23: ... in the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts that do not have the same safety characteristics as speci fied in the parts list may create shock fire or other hazards Notes 1 Do not use the part number shown on these draw ings for ordering The correct part number is shown in ...

Page 24: ...amended since the drawings were prepared 2 To maintain original function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Voltage indications for PLAY and STOP mode on the schematics are as shown below 5 How to read converged lines 6 Test Point Information This symbol means fast operatin...

Page 25: ...DVD Main 1 5 Schematic Diagram 1 8 3 1 8 4 E5932SCD1 ...

Page 26: ...DVD Main 2 5 Schematic Diagram 1 8 5 1 8 6 E5932SCD2 ...

Page 27: ...64 0 0 96 0 0 128 1 7 1 7 PIN NO PLAY STOP PIN NO PLAY STOP PIN NO PLAY STOP PIN NO PLAY STOP 129 2 3 2 3 161 3 2 3 2 193 225 3 2 3 2 130 2 3 2 3 162 0 0 194 226 131 2 3 2 3 163 1 5 1 5 195 227 132 2 3 2 3 164 0 0 196 3 2 3 2 228 133 2 4 2 4 165 1 7 1 8 197 229 0 0 134 2 4 2 4 166 1 7 1 7 198 230 135 2 3 2 3 167 3 2 3 2 199 231 3 2 3 2 136 2 3 2 3 168 0 0 200 232 1 3 1 6 137 2 3 2 3 169 1 7 1 7 20...

Page 28: ...DVD Main 3 5 Schematic Diagram 1 8 9 1 8 10 E5932SCD3 ...

Page 29: ...DVD Main 4 5 Schematic Diagram 1 8 11 1 8 12 E5932SCD4 ...

Page 30: ...DVD Main 5 5 Schematic Diagram 1 8 13 1 8 14 E5932SCD5 ...

Page 31: ...LE N UTILISER QUE DES FUSIBLE DE MÊME TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide CAUTION Fixed voltage or Auto voltage selectable 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 th...

Page 32: ...AV 2 3 Schematic Diagram 1 8 17 1 8 18 E5932SCAV2 ...

Page 33: ...c b e f f i i REPEAT TITLE GROUP VCR CHP REC SACD TRK A ALL B PSCAN DVD PM HDVCD A 7G 6G 5G 4G 3G 2G 1G a b c d e f g c d e f f g c d e f g c d e f g c d e f g c d e f g h i i a b a b a b a b a b FL2001 MATRIX CHART REPEAT TITLE GROUP VCR CHP REC SACD TRK ALL B PSCAN DVD P M HD V CD A A ...

Page 34: ...5 1ch Amp Schematic Diagram 1 8 21 1 8 22 E5932SCA ...

Page 35: ... DES FUSIBLE DE MÊME TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide CAUTION Fixed voltage or Auto voltage selectable 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 36: ... POUR UNE PROTECTION CONTINUE LES RISQES D INCELE N UTILISER QUE DES FUSIBLE DE MÊME TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide CAUTION Fixed voltage or Auto voltage selectable 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...

Page 37: ...1 8 27 BE5930F01011B 1 8 28 FUNCTION CBA Top View FUNCTION CBA Bottom View ...

Page 38: ...BE5932F01011 1 8 30 5 1CH AMP CBA Top View 5 1CH AMP CBA Bottom View 1 8 29 ...

Page 39: ...S LEAD WF4 AUDIO L AUDIO L Pin 14 of CN1601 1V 1V 0 5ms 0 5ms WF5 AUDIO R AUDIO R Pin 16 of CN1601 1V 1V 0 5ms 0 5ms WF2 Pin 10 of CN1601 VIDEO Y VIDEO Y 0 2V 0 2V 20 20µs VIDEO C VIDEO C 0 2V 0 2V 20 20µs VIDEO CVBS VIDEO CVBS 0 5V 0 5V 20 20µs NOTE Input CD 1kHz PLAY WF4 WF6 DVD POWER ON STOP MODE WF1 WF3 ...

Page 40: ...UTE 4 4 GND 1 1 M MUTE 2 2 SUB WOOFER 5 5 CENTER MUTE 6 6 CENTER 7 7 SURROUND L MUTE 10 10 SURROUND L 11 11 SURROUND R MUTE 8 8 SURROUND R 9 9 A R MUTE 12 12 FRONT AUDIO R 13 13 A L MUTE 14 14 FRONT AUDIO L 15 15 A MUTE2 16 16 AUDIO R 16 16 AUDIO GND 11 11 AUDIO GND 12 12 A MUTE 13 13 AUDIO L 14 14 A R MUTE 15 15 FS TS DETECTOR 7 9 11 2 3 6 5 M SLED MOTOR M SPINDLE MOTOR AUDIO 5V 17 17 AUDIO 5V 18...

Page 41: ...power on by pressing the POWER button and the tray will close 9 Press 1 2 3 4 and DISPLAY buttons on the remote control unit in that order Fig g appears on the screen 10 Press CLEAR button on the remote control unit Fig h appears on the screen When OK appears on the screen the factory default will be set Then the firmware renewal mode is complete 11 To exit this mode press POWER button F W Version...

Page 42: ...OL TIMING CHARTS Tray IN TL221 Sled Drive TP303 Disc Drive TP301 Focus Drive TP304 Tracking Drive TP302 0V 3 3V 0V 1 65V 0V 0V 0V 1 65V 1 65V 1 65V Tray Close Play Play Tray Open Tray Close Disc Rotation Play Disc Stop Tray Open ...

Page 43: ...Out a KEY 1 Segment Output Key Source 1 8 Out b Key 2 Segment Output Key Source 2 9 Out c Key 3 Segment Output Key Source 3 10 Out d Key 4 Segment Output Key Source 4 11 Out e Segment Output 12 In f 13 In g 14 Out h 15 VEE Pull Down Level 16 Out i Segment Output 17 Out 7G Grid Output 18 6G 19 5G 20 4G 21 3G 22 2G 23 1G 24 VDD Power Supply 25 VSS GND 26 In OSC Oscillator Input 27 Out FP DOUT Serial...

Page 44: ... Collector B Base R Reference G Gate D Drain S Source PQ070XZ5MZP 1 Vin 2 Vc 3 Vo 4 Vadj 5 GND PT6313 S TP SC16313 NJM4558D NJM4580M TE1 2SA1015 Y TPE2 KTA1266 Y KTC3205 Y 2SC2785 H BN1L3Z P KRA105M AT KRA110M KTA1267 Y KTC3199 GR LTV 817B F LTV 817C F PS2561A 1 Q W FAN431AZXA KIA431 AT MM1637XVBE 2SK3498 0C 0805T 002 GP1FA513TZ 2SD2144S KIA4558P MM1636XWRE 2SD1913 R ...

Page 45: ...t for parts with this mark Some Ref Numbers are not in sequence 2B3 2L051 2L021 2L021 2L021 2L021 2L011 2L011 2L011 A16 2L011 2L011 A32 2L081 2L081 2B5 DVD Audio CBA 1B1 2L105 2B19 2L101 2L101 2L103 F1001 W1301 2B1 AC1001 2L032 AV CBA A17 2L031 2L071 2L041 A26 2L041 DVD Main CBA Unit A25 2B31 ...

Page 46: ...1 15 2 E5932EX Packing X10 X2 X31 X1 X5 X4 S2 S2 S4 Unit S1 A22 A22 A30 A30 ...

Page 47: ...NA900UD REMOTE WAC0162LW003 CORD POWER OVM101377 COVER TOP OVM204671 FRONT ASSY 1VM320271 GIFT BOX CARTON USESJRSKK037 I R RECEIVER N79FOHVM MECHA P U ASSY OVM101344 PACKING SIDE PAD E5900UD 1VSA10541 PCB AV ASSY AV FUNCTION 1VSA10538 PCB DVD AUDIO N79M2HUP PCB MAIN ...