Mitsubishi Electric DD-8030 Service Manual
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Mitsubishi Electric DD-8030 Service Manual

Mitsubishi Electric DD-8030 Service Manual

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MITSUBISH ELECTRIC
CAUTION
Before servicing this chassis, it is important that the service person reads all SAFETY PRECAUTIONS and the
SAFETY NOTICE in this manual.
Power Supply:
120V AC, 60 Hz
Power Consumption:
17W
Weight:
5.6 lb.
External Dimensions:
17"x 2-3/4"x8-7/8"
(W/H/D)
Signal System:
Standard NTSC
Laser:
Semiconductor laser,
wavelength 650nm/780nm
Frequency Range:
(Digital Audio)
DVD Linear -
48 kHZ Sampling: 4 Hz to 22 kHz
96 kHZ Sampling: 4 Hz to 44 kHz
Signal-To-Noise Ratio: More than 112 dB (EIAJ)
Audio Dynamic Range: More than 108 dB (EIAJ)
Harmonic Distortion:
Less than 0.002%
Wow and flutter:
Below measurable level
(less than ± 0.001%
(W.PEAK)) (EIAJ)
MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.
Copyright © 2002 Mitsubishi Digital Electronics America, Inc.
SPECIFICATIONS
Operating conditions:
Operation status:
Video output:
S Video output:
Component Video output: (Y) 1.0 V (p-p), 75Ω,
Digital Audio output:
Analog Audio output:
9351 Jeronimo Rd. Irvine, CA 92618
All Rights Reserved
Service
Manual
DVD Player
Model
DD-8030
Temperature: 5°C to 35°C
Horizontal
1.0 V (p-p), 75Ω, negative
sync., pin jack x 1
(Y) 1.0 V (p-p), 75Ω, nega-
tive sync., Mini DIN 4-pin x 1
(C) 0.286 V (p-p), 75Ω
negative sync., pin jack x 1
(Cr, Pr)/(Cb, Pb) 0.7 V (p-p),
75Ω, pin jack x 2
(Bitstream/PCM) 0.5 V (p-p),
75Ω, pin jack x 1,
Optical connector x 1
2.0 V (rms), 680Ω, pin jack
2 CH L R x 2,
5.1 CH SURROUND x 6
2002

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  • Page 1 2002 Service MITSUBISH ELECTRIC Manual DVD Player Model DD-8030 CAUTION Before servicing this chassis, it is important that the service person reads all SAFETY PRECAUTIONS and the SAFETY NOTICE in this manual. SPECIFICATIONS Power Supply: 120V AC, 60 Hz Operating conditions: Temperature: 5°C to 35°C...

  • Page 2: Section 1 General Descriptions

    SECTION 1 GENERAL DESCRIPTIONS 1. PREPARATION FOR SERVICING The Pickup Head consists of a laser diode that is very susceptible to external static electricity. Although it may operate properly after replacement, if subjected to electrostatic discharge during replacement, its life might be shortened. When replacing the laser diode, LSI's and IC's, use a conductive mat, soldering iron with ground wire, etc.

  • Page 3: Location Of Main Parts And Mechanism Parts

    2. LOCATION OF MAIN PARTS AND MECHANISM PARTS 2-1. Location of Main Parts Disc motor PC board Feed motor PC board EU02 Power supply PC board EU05 Output PC board EU04 Power SW PC board EU01 Main PC board EU03 Front display PC board Loading motor PC board Fig.

  • Page 4: Location Of Mechanism Parts

    2-2. Location of Mechanism Parts 2-2-1. Type A Tray Clamper stay Fig. 1-2-2 Mechanism chassis assembly (Top side) Loading motor PC board Mechanism chassis Fig. 1-2-3 Mechanism chassis assembly (Bottom side)

  • Page 5: Loading Belt

    Loading belt Gear Gear Gear Loading motor Clamper Cam Slider Fig. 1-2-4 Mechanism chassis assembly (Internal side)
  • Page 6 Disc motor Rack gear assembly Pickup assembly Gear A Gear B assembly Sub chassis Fig. 1-2-5 Pickup mechanism chassis assembly (Top side) Front damper Front damper Feed motor Feed motor PC board Rear damper Rear damper Fig. 1-2-6 Pickup mechanism chassis assembly (Bottom side)
  • Page 7 2-2-2. Type B Tray Clamper stay Fig. 1-2-7 Mechanism chassis assembly (Top side) Loading motor PC board Mechanism chassis Fig. 1-2-8 Mechanism chassis assembly (Bottom side)

  • Page 8: Disc Motor

    Loading belt Gear Kick lever Gear Gear Loading motor Disc motor Cam Slider Fig. 1-2-9 Mechanism chassis assembly (Internal side)
  • Page 9 Front damper Front damper Rack gear assembly Pickup assembly Gear A Gear B assembly Sub chassis Rear damper Rear damper Fig. 1-2-10 Pickup mechanism chassis assembly (Top side) Feed motor Feed motor PC board Fig. 1-2-11 Pickup mechanism chassis assembly (Bottom side)

  • Page 10: Troubleshooting

    3. TROUBLESHOOTING 3-1. Main Circuit 3-1-1. Servo System (1) Initial Operation after Power ON Power ON Send each LSI hard RST command and initial command. Pickup head is positioned at transmission initial position. Is tray closed? Pin 5 of CN502, TCLS=L Tray close operation Pin C9 of IC306 (E537): LDMP = H/L...
  • Page 11 The pickup transmission initial operation is carried out to determine the initial position by transmitting the pickup to the innermost position once (start-limit switch (pin 4 of CN503) Pickup (P.U.) transmission initial develops "L".) and to the external direction at low speed operation does not occur.
  • Page 12 Disc kind misjudgement (Initial setting is NG.) Are FE and RFSB signals for each disc normal? Check IC502. Lens cleaning. Check peripheral Replace pickup head. circuit of IC605. Fig. 1-3-4 Laser operating current DVD Iop 20mA 35mA 60mA 20mA 45mA 80mA CD Iop Check laser operating current.
  • Page 13 (2) Picture appears (PLAY) PLAY Disc motor (D.M.) forced accelleration (500 ms) Focus search Repeat three times. Is forcus servo CLV servo ON. Tracking balance adjustment Tracking servo ON. Focus gain adjustment Automatic adjustment is carried out when a disc is replaced after power ON.
  • Page 14 Disc motor (D.M.) does not rotate. Does pin 117 of IC401 (TP409) PLCK oscillate around 10 MHz ? Check peripheral Check peripheral circuits circuit of IC402. of IC402. Check disc motor and wiring. Fig. 1-3-10 Focus servo is NG. Focus servo ON signal waveform Are FE, RFSB, FE signal...
  • Page 15 Tracking servo is NG. Is TE signal normal? Check peripheral Check IC502. circuit of IC306. Fig. 1-3-13 Signal waveform at Signal waveform at tracking servo ON (CD) tracking servo ON (DVD) TE signal Pin 151 (TP406) of IC401 1.65V RFRP signal Pin 153 (TP408) of IC401 Search ON (SRCH) Pin 38 (TP411) of IC401...
  • Page 16 Does pulse of Disc playback is NG (DVD). L = 1.65V and H = 3.3V develop at pin 131 and L = 0V and H = 1.65V develop at pin 132 of IC401? Is PLL locked? Check peripheral circuits (Refer to waveforms.) of IC401 and IC306.

  • Page 17: Location Diagram Of Servo Test Point

    3-1-2. Location Diagram of Servo Test Point CN503 CN501 CN701 IC503 IC502 CN502 IC902 CN603 CN901 IC312 CN601 CN302 IC401 IC313 IC310 IC305 IC307 IC306 Fig. 1-3-21...

  • Page 18: Section 2 Part Replacement And Adjustment Procedures

    SECTION 2 PART REPLACEMENT AND ADJUSTMENT PROCEDURES CAUTIONS BEFORE STARTING SERVICING Electronic parts are susceptible to static electricity and may easily damaged, so do not forget to take a proper grounding treatment as required. Many screws are used inside the unit. To prevent missing, dropping, etc. of the screws, always use a magnetized screw- driver in servicing.

  • Page 19: Rear Panel

    1-1-4. Tray <Tray Panel Removal> 1. Pull out the tray (1) towards you until it stops. 1. Eject the tray (1). (Refer to item 1-1-2.) 2. Lift up claw A with a minus screwdriver, and pull out 2. Twist the tray panel (2) a little in the arrow A direction the tray (1) towards you, then remove the tray (1).

  • Page 20: Pc Board Replacement

    1-2. PC Board Replacement 1-2-2. Output PC Board 1. Remove the top cover. (Refer to item 1-1-1.) 1-2-1. Main PC Board 2. Peel off two tapes (1) and remove the connector (2). Note: 3. Remove two flexible cables (3). • Before removing the main PC board (4), be sure to 4.

  • Page 21: Power Pc Board

    1-2-3. Power PC board 1-2-4. Front PC Board 1. Remove the bush (1). 1. Remove the front panel. (Refer to item 1-1-3.) 2. Peel off two tapes (2) and remove two connectors (3). 2. Remove the flexible cable (1). 3. Remove four screws (4), then remove the power 3.

  • Page 22: Mechanism Parts

    1-3. Mechanism Parts 1-3-1. Mechanism Chassis Assembly Note: • When removing the mechanism chassis assembly (3), be sure to short-circuit the laser diode output land before removing the connector and the flexible cables. After replacing, open the land as it was after inserting the connector and flexible cables.
  • Page 23 2. REPLACEMENT OF MECHANICAL PARTS (TYPE B) 2-1. Cabinet Replacement <Mounting > 1. The spring for tray side pressure is inserted into the 2-1-1. Top Cover portion “A”. (Refer to Fig. 2-1-13.) 1. Remove seven screws (1), then remove the top cover (2).

  • Page 24: Front Panel And Tray

    2-1-3. Tray Panel <Tray Ejection> Tray (3) 1. Slide the slider (2) of the mechanism chassis assembly (1) with a screwdriver, etc. in the arrow direction, so that the tray (3) is ejected. Tray Note: panel (4) • Take care not to damage the pickup and other parts. Tray (3) Tray Claw...
  • Page 25 • Confirm that the mark of the gear matches with the 2-2. PC Board Replacement triangle mark on the reverse side of the tray in the tray 2-2-1. Main PC Board close status. (The gear is rotated with the slider locks.) Note: (Refer to Fig.
  • Page 26 2-2-2. Output PC Board 2-2-3. Power PC board 1. Remove the top cover. (Refer to item 2-1-1.) 1. Remove the power bush (1). 2. Peel off two tapes (1) and remove the connector (2). 2. Peel off two tapes (2) and remove two connectors (3). 3.
  • Page 27 2-2-4. Front PC Board 2-3. Mechanism Parts 1. Remove the front panel. (Refer to item 2-1-4.) 2-3-1. Mechanism Chassis Assembly 2. Remove the flexible cable (1). Note: 3. Remove six screws (2), then remove the front display • When removing the mechanism chassis assembly (3), PC board (3).

  • Page 28: Standing Pc Boards For Servicing

    SECTION 3 SERVICING DIAGRAMS 1. STANDING PC BOARDS FOR SERVICING EU01 Main PC board EU02 Power supply PC board EU05 Output PC board EU04 Power SW PC board EU03 Front display PC board Fig. 3-1-1...

  • Page 29: Circuit Symbols And Supplementary Explanation

    2. CIRCUIT SYMBOLS AND SUPPLEMENTARY EXPLANATION 2-1. Precautions for Part Replacement • In the schematic diagram, parts marked (ex. • Using the parts other than those specified shall violate the regulations, and may cause troubles such as F801) are critical part to meet the safety regulations, operation failures, fire etc.

  • Page 30: Inductor Indication

    2-4. Inductor Indication Eg. 4 ... Η Unit None µ ... µH ... mH Tolerance None ... ±5% ... ±0.1% ... ±0.25% ... ±0.5% ... ±1% Type name ... ±2% ... ±10% ... ±20% Fig. 3-2-4 2-5. Waveform and Voltage Measurement Eg.
  • Page 31 3 . (A) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM - DD-6030 EU05 OUTPUT CNY02 Board-in CNY01 CNX01 FFC 1mm 19P P r e s s - f i t FFC 1mm 7P W302 W901 Mechanism W501 FFC 1mm 23P CN901 CN302 MON2 VOR2...
  • Page 32 3. (B) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM - DD-8030 EU05 OUTPUT CNY02 Board-in CNY01 CNX01 FFC 1mm 15P FFC 1mm 19P Press-fit W302 W901 Mechanism W501 FFC 1mm 23P CN901 CN302 MON2 VOR2 CN802 VREF CN501 EU02 POWER FFC 1.25mm 6P W502...
  • Page 33 4. BLOCK DIAGRAMS 4-1. (A) Overall Block Diagram - DD-6030 Fig.3-4-1-A...
  • Page 34 2-1. (B) Overall Block Diagram - DD-8030 Data/Control Bus DVD AV Data SP DIF Data MAIN PROCESSOR UNIT AUDIO/VIDEO OUTPUT UNIT IC402 M11B11664A-30T 1M-DRAM Coaxial Digital Buffer TOS Link Digital Tray IC401 Audio Out Motor TC94A03F ICY02 RF Amp. Feed...

  • Page 35: Power Supply Block Diagram

    4-2. Power Supply Block Diagram D824, Q833 T802 RECTIFIER E-9V TRANS SMOOTHING D821, C821 RECTIFIER E+5V SMOOTHING D829 Q827 5V REG/SW VDD+5V PWON D822, C822-C823 Q828 RECTIFIER VDD+3.3V 3.3V REG/SW D803, C805 SMOOTHING D830, D831 RECTIFIER SMOOTHIN VDD+2.5V E+9V C801-C804 T801 D825, C824 Q823, Q824...

  • Page 36: Front Display, Power Switch Block Diagram

    4-3. Front Display, Power Switch Block Diagram 4-3-1. Front Display col2 col1 Fig. 3-4-3 (7G-2G) 4-3-2. Front Display Pattern col2 col1 Fig. 3-4-4...
  • Page 37 4-3-3. Front Display , Power Switch Block Diagram Fig. 3-4-5...
  • Page 38 4-4. Main Block Diagrams 4-4-1. Servo System Block Diagram 3# 27,-6 1+!$ Fig.3-4-6...
  • Page 39 4-4-2. Logical System Block Diagram OUTPUT UNIT IC401 IC306 TC94A03F ZR36750 DATA PRO-1 AV 1 CHIP PROCESSOR CN302 CNX01 From CVBS IC502 RFDVD PIN30 DISC STREAM DATA 8bit Y (I/P) G IC901 AD1958 AUDIO DAC CN901 CNY01 PDCK PDCK ALRCK0 LRCK VOUTL LOUT...
  • Page 40 4-5. (A) Output Block Diagram - DD-6030 MAIN EU01 ICX01 JX01 MM1568AJBE VIDEO DRIVER VOUT 31 CNX01 C-IN/OUTPUT COUT 33 Y-IN/OUTPUT YIN1 YOUT 28 To MAIN Cb(I/P)-IN/OUTPUT OUT 20 Cr(I/P)-IN/OUTPUT OUT 22 COMPOSITE VIDEO S TERMINAL ICY01 QY04 NJM4580E HN-1C03F CNY01 FL OUTPUT Lch OUT...
  • Page 41 4-5. (B) Output Block Diagram - DD-8030 EU01 ICX01 MAIN JX02 MM1568AJBE VIDEO DRIVER CR SIGNAL VOUT 31 CNX01 CB SIGNAL C-IN/OUTPUT COUT 33 Y-IN/OUTPUT YIN1 YOUT 28 To MAIN SIGNAL Cb(I/P)-IN/OUTPUT OUT 20 Cr(I/P)-IN/OUTPUT OUT 22 JX01 COMPOSITE COMPOSITE...
  • Page 42 5. CIRCUIT DIAGRAMS 5-1. Power Supply Circuit Diagram POWER EU02 : OFF ( ) : ON [ ] : PLAY (5.1) [5.1] (164) (5.8) [164] [5.8] (4.8) [4.8] (2.9) 10.0 [2.9] (10.0) [9.9] -8.9 (-9.0) [-9.0] -39.5 (8.7) (-41.0) [8.3] [-41.5] 11.3 (14.6)

  • Page 43: Power Supply Circuit Diagram

    Power Supply Circuit Diagram Drain-Sourse Q801 ON MODE AC 120V 60 Hz IN V:100 V/div H:5 µs/div Gate-Sourse Q801 ON MODE AC 120V 60 Hz IN V:5 V/div H:5 µs/div Fig. 3-5-2...
  • Page 44 5-2. Front Display , Power Switch Circuit Diagram Fig. 3-5-3...

  • Page 45: Front Display, Power Switch Circuit Diagram

    Front Display, Power Switch Circuit Diagram IC101, Pin IC101, Pin X-OUT V: 2 V/div V: 2 V/div H: 100 ns/div H: 100 s/div IC101, Pin IC101, Pin V: 2 V/div V: 10 V/div H: 5 ms/div H: 500 s/div IC101, Pin IC101, Pin V: 10 V/div V: 2 V/div...

  • Page 46: Main Circuit Diagrams

    5-3. Main Circuit Diagrams 5-3-1. Main ICs Information TC74VHCT TMP86CK74AFG 244AFT W986432DH PCM1742 MBM29DL3240BE S24C02AFJA MM1568AJ PQ3RD23 PQ05RD11 MPC2948T BH7863 AD1958YRS...
  • Page 47 5-3-2. Main Circuit Diagram Fig. 3-5-5...
  • Page 48 5-3-2. Main Circuit Diagram...
  • Page 55 Fig. 3-5-5...
  • Page 56 5-4. (A) Output Circuit Diagram - DD-6030 Fig. 3-5-6-A...
  • Page 57 5-4. (A) Output Circuit Diagram - DD-6030...
  • Page 62 Fig. 3-5-6-A...
  • Page 63 Output Circuit Diagram - DD-6030 JX01 L ch output JX01 Composite / R ch output video output (1 kHz, FS) CVBS output L ch output terminated 100% color bar R ch output V: 500 mV/div V: 2 V/div H: 200 s/div H: 20 s/div...
  • Page 64 5-4. (B) Output Circuit Diagram - DD-8030 Fig. 3-5-6-B...
  • Page 65 5-4. (B) Output Circuit Diagram - DD-8030...
  • Page 70 Fig. 3-5-6-B...
  • Page 71 Output Circuit Diagram - DD-8030 JY01 L ch output JX01 Composite / R ch output video output (1 kHz, FS) CVBS output L ch output terminated 100% color bar R ch output V: 2 V/div V: 500 mV/div H: 20...
  • Page 72 5-5. Motor System Circuit Diagram Fig. 3-5-8...

  • Page 73: Power Supply Pc Board

    6. PC BOARDS 6-1. Power Supply PC Board Part Loca- Part Loca- tion tion C801 P801 C802 Q801 C803 Q802 C804 Q804 C805 Q821 C806 Q822 C807 Q823 C808 Q824 C809 Q825 C811 Q826 C812 Q827 C821 Q828 C822 Q830 C823 R801 C824...
  • Page 74 6-3. Main PC Board CN503 CN501 E704 CN701 F-MARK2 E504 E517 E531 E529 E555 E557 E502 E501 E508 E510 E512 E514 E516 E506 E520 E521 E703 E702 E701 E715 E714 E713 E712 E706 E705 E709 E708 E518 E532 E530 E528 E554 E556 E558...

  • Page 75: Main Pc Board (Top Side)

    Main PC Board (Top Side) Part Loca- Part Loca- Part Loca- Part Loca- Part Loca- tion tion tion tion tion C312 E304 E525 E617 R405 C314 E305 E526 E618 R406 C318 E306 E527 E619 R407 C320 E307 E528 E651 R408 C321 E308 E529...

  • Page 76: Main Pc Board (Bottom Side)

    Main PC Board (Bottom Side) Part Loca- Part Loca- Part Loca- Part Loca- tion tion tion tion C301 C523 R311 R430 C302 C526 R312 R432 C303 C528 R313 R436 C304 C530 R314 R438 C305 C532 R315 R442 C306 C533 R316 R443 C307 C534...
  • Page 77 C706 C715 R504 R503 C505 F-MARK4 R551 R506 C502 C503 C539 R528 Q501 C521 R527 R507 R529 R501 R540 R532 C508 R533 R523 Q506 C532 C533 C534 C515 C530 R535 C417 C918 R906 R908 Q503 R909 C406 C919 C917 C403 R609 C305 R606...
  • Page 78 CN503 CN501 E704 CN701 F-MARK2 E504 E517 E531 E529 E555 E557 E502 E501 E508 E510 E512 E514 E516 E506 E520 E521 E703 E702 E701 E715 E714 E713 E712 E706 E705 E709 E708 E518 E532 E530 E528 E554 E556 E558 E503 E507 E509 E511...
  • Page 79 C706 C715 C505 R504 R503 F-MARK4 R506 R551 C502 C503 C539 R528 Q501 R527 C521 R507 R529 R501 R540 R532 C508 R533 R523 Q506 C532 C533 C534 C515 C530 R535 C417 C918 R906 R908 Q503 R909 C406 C919 C917 C403 R609 C305 R606...
  • Page 80 6-4. (A) Output PC Board - DD-6030 Part Loca- Part Loca- tion tion CNX01 B3 JW07 CNX03 B2 JW08 CNY01 B2 JW09 CNY02 B1 JW10 CX04 JW11 CX05 JW12 CX06 JW13 CX07 JW14 CX09 JW15 CX10 JW16 CX11 JW17 CX12 JW18 CX13 JW19...
  • Page 81 6-4. (B) Output PC Board - DD-8030 Part Loca- Part Loca- tion tion CNX01 CY12 CNX02 CY18 CNX03 CY19 ICY04 JY01 JX02 JX01 CNY01 CY24 CNY02 CY25 CX04 CY26 CX05 CY27 SX01 CX06 CY29 CX07 CY30 CX09 CY32 CX10 CY33...

  • Page 82: Section 4 Parts List

    SECTION 4 PARTS LIST SAFETY PRECAUTION The parts identified by ! ( ) mark are critical for safety. Replace only with part number specified. The mounting position of replacement is to be identical with originals. The substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire or other hazards.

  • Page 83: Exploded Views

    4. EXPLODED VIEWS 4-1. Chassis Assembly (Type A) ZG60 ZG60 BID 3.0x6.0 BID 3.0x6.0 ZG27 ZG63 ZG20 P801 ZG67 ZG64 ZG60 BID 3.0x6.0 EU02 ZG67 W503 W901 ZG64 W502 W302 ZG71 W501 ZG60 BID 3.0x6.0 ZG68 W102 ZG71 EU04 ZG22 EU03 ZG69 ZG01...

  • Page 84: Chassis Assembly (Type B)

    4-2. Chassis Assembly (Type B) ZG60 ZG60 BID 3.0x6.0 BID 3.0x6.0 ZG27 ZG63 ZG20 P801 ZG67 ZG64 ZG60 BID 3.0x6.0 EU02 ZG67 W503 W901 ZG64 W502 W302 ZG71 W501 ZG60 BID 3.0x6.0 ZG68 W102 ZG71 EU04 ZG22 EU03 ZG69 ZG01 W603 ZG03 Fig.
  • Page 85 CABLE (FLEXIBLE 13P-L130) 79085104 PCB-POWER ASSY (AC120V) 79088028 CORD-POWER UL 79089156 BUZZER (PKM13EPY) 79089158 SWITCH-SLD-SSAA110200 79089160 JACK-VIDEO (1CH,YELLOW+S-VIDEO) 79089167 DISPLAY FL (8-BT-230GNK) 79085106 PCB-OUTPUT P000354950 PCB-FRONT P000354960 PCB-POWER-SW 79100009 PCB-MAIN 79100013 PANEL-FRONT BLACK (DD-8030) 79100015 PANEL-TRAY BLACK (DD-8030) 79100017 REMOTE...

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