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Daewoo DN-W551 Service Manual

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SDNW551001

DVD PLAYER

DN-W551
AUG. 2006

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Summary of Contents for Daewoo DN-W551

  • Page 1: Dvd Player

    SDNW551001 DVD PLAYER DN-W551 AUG. 2006...

  • Page 2: Table Of Contents

    Daewoo DN-W551 Service Manual Daewoo DN-W551 Service manual Table of Contents page General Section …………………………………………………………………. Cautions/Warnings Safe Warnings Precautions Software Upgrade Circuit Diagram and Component Layout ……………………………………… MPEG IC Block Diagrams Power supply Circuit Diagram and Component Layout MPEG Circuit Diagram and Component Layout Front panel Circuit Diagram and Component Layout Servicing Procedures …………………………………………………………….

  • Page 3: General Section

    Daewoo DN-W551 Service Manual 1. General Section Cautions/Warnings 1.1. 1.1.1. Product Safety Notice Parts marked with the symbol in the schematic diagram have critical characteristics. Use ONLY replacement pares recommended by the manufacturer. It is recommended that the unit be operated from a suitable DC supply or batteries during initial check out procedures.

  • Page 4: Precautions

    Daewoo DN-W551 Service Manual 1.2.2. Laser Caution CAUTION Adjusting the knobs, switches, and controls, etc. or taking actions not specified herein may result in a harmful emission of laser beams. This CD Changer must be adjusted and repaired only by qualified service personnel.

  • Page 5: Software Upgrade

    Daewoo DN-W551 Service Manual Adjust Screws”, as they are adjusted precisely at the factory. 1.3.2.3. Replacement of the Pickup Block is impossible. Always replace the Traverse Ass’y when the Pickup Block needed to be replaced. Do not touch the lens or lens holder of the Pickup Block.

  • Page 6: Circuit Diagram And Component Layout

    Daewoo DN-W551 Service Manual 2. Circuit Diagram and Component Layout 2.1. MPEG IC Block Diagrams Fig.2-1 Vaddis MTK1389QE/D...
  • Page 7 Daewoo DN-W551 Service Manual Fig.2-2 Vaddis MTK1389QE/D block diagram...
  • Page 8 Daewoo DN-W551 Service Manual Table1. Vaddis MTK1389QE/D Pin`s operational function description...
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  • Page 16: Power Supply Circuit Diagram And Component Layout

    Daewoo DN-W551 Service Manual 2.2.1Power supply Circuit Diagram and Component Layout (Infinoen) Fig 2-1 Power Supply Circuit Diagram...
  • Page 17 Daewoo DN-W551 Service Manual Fig2-2 Power Supply Assembly Drawing Fig 2-3 Power Supply Composite...

  • Page 18: Mpeg Circuit Diagram And Component Layout

    Daewoo DN-W551 Service Manual 2.3.MPEG Circuit Diagram and Component Layout 2.3.1MPEG Circuit Diagram Fig 2-4 MTK1389QE/D&SDRAM Fig 2-5RF AMPLIFIER&DRIVER...
  • Page 19 Daewoo DN-W551 Service Manual Fig 2-6 AUDIO&VIDEO FILTER...
  • Page 20 Daewoo DN-W551 Service Manual Fig 2-7 MEMORY Fig2-8 POWER PORT...
  • Page 21 Daewoo DN-W551 Service Manual 2.3.2.MPEG Assembly Drawing(Fig 2-99) 2.3.3.MPEG Composite (Fig 2-10)

  • Page 22: Front Panel Circuit Diagram And Component Layout

    Daewoo DN-W551 Service Manual 2.4. Front panel Circuit Diagram and Component Layout Fig 2-11 Front Panel Circuit Diagram Fig 2-12 Front Panel Assembly Drawing Fig 2-13 Front Panel Composite...

  • Page 23: Servicing Procedures

    Daewoo DN-W551 Service Manual 3. Servicing Procedures 3.1. 1 Power Supply Trouble Service Flow Chart Infineon Power Supply Block Trouble Check F1 Condition Replace F1 Replace Check on DA1/DA2/DA3/DA4 DA1/DA2/DA3/DA4DA5/DA6/DB DA5/DA6/DB2/DB3/DB4/DB7/ 2/DB3/DB4/DB7/DB8 Output Voltage Condition Check on U3 Replace U3 Voltage Condition Pin1(2.4V)/ Pin2(0V)/ Pin3 (2.6V)

  • Page 24: Read Disc Trouble Service Flow Chart

    Daewoo DN-W551 Service Manual 3.2. Read Disc Trouble Service Flow Chart Read disc problem in a DVD player is a very complicated issue that may involve complex issues. This problem is not only relation to the electronic circuit, but also very much relation to the operation environment.
  • Page 25 Daewoo DN-W551 Service Manual 3.3.1. Composite Video Trouble Service Flow Chart Composite Video Trouble Check Composite Video Replace Composite Video Parts Output Signal Check “SETUP” Item See “User Manual” Check CP3 Signal Replace CP3 Check R107 D12 D14 Replace R107 D12 D14...
  • Page 26 Daewoo DN-W551 Service Manual 3.3.2. S-Video Trouble Service Flow Chart S-Video Trouble Check S-Video Output Signal Replace S-Video Parts Check “SETUP” Item See “User Manual” Check CP1 Signal Replace CP1 Check R85/R80 Signal Replace R85/80 Check Q38 Q39 Signal Replace Q38 Q39...

  • Page 27: Digital Audio Trouble Service Flow Chart

    Daewoo DN-W551 Service Manual 3.4. Digital Audio Trouble Service Flow Chart Digital Audio Trouble Check “SETUP” Item See “User Manual” Check Optical/Coaxial Out Signal Replace Optical/Coaxial Check CP3/CP4 Signal Replace CP3/CP4 Check R113/R114/R117 Replace R113/R114/R117/C155 C155 Signal Check U2 ReplaceU2...

  • Page 28: Composite Analogy Audio Trouble Service Flow Chart

    Daewoo DN-W551 Service Manual 3.5 Composite Analogy Audio Trouble Service Flow Chart Composite Analogy Audio Trouble Check CP3 Signal Replace CP3 Check Q18/Q19/Q20/Q21 Replace Q18/Q19/Q20/Q21 /Q25/Q26 /Q25/Q26 Check U11/U13/U14 [Pin4(-12V), NG Replace U11/U13/U14 Pin8(+12V)] Check U16(Pin19/20/23/24) Replace U16 26/27) Check U2(Pin 163/164/165) NG...

  • Page 29: Front Control Trouble Service Flow Chart

    Daewoo DN-W551 Service Manual 3.6. Front Control Trouble Service Flow Chart Front Control Trouble Check between CN1 Connection Replace CN1 Check U1 pin7 Vol 5V Check EC1 C1 Check LED Array Replace U1 Replace EC1 C1 Replace LED Array...

  • Page 30: Remote Control Trouble Service Flow Chart

    Daewoo DN-W551 Service Manual 3.7. Remote Control Trouble Service Flow Chart Remote Control Trouble Check Remote Control Replace Battery Replace Control Check IR (Pin1 )Voltage Check Power Supply Check IR (Pin3) Output Signal Replace IR...

  • Page 31: Parts List

    Daewoo DN-W551 Service Manual 4. Parts List 4.1. 1Power parts list Infinoen PART NO. DESCRIPTION LOCATION Carbon Resistor 20-200132-03100 1/6W 1K±5% 20-204712-03100 1/6W 470•±5% 20-243032-04100 1/4W 430K±5% RA2,RA3 20-201502-04100 1/4W 15•±5% RA4,RA5 20-251012-03100 1/6W 5.1K±5% RB11,RB12 20-200102-06100 1W 1•±5% 20-206832-06100 1W 68K±5%...
  • Page 32 Daewoo DN-W551 Service Manual Fixed Inductance LB1,LB2 41-130103-13201 10uH/3 4A Transformer 42-022112-02000 PINF001-L EEL19 42-032014-01000 UT-20 25mH Fuse Tube 52-001311-11200 1A 250V 20*5MM (UL) Jack 3.96*3P 48-111031-20100 Jumper L=5.8MM Φ=0.5MM JP2,JP3,CN2 51-110009-10800 L=14MM Φ=0.5MM JP1,RB5,DB6 51-110014-10800 46-0W552H-12400 PINF001 REV:B1.3 Bead RH3.5*4.7*0.8...

  • Page 33: Front Panel Parts List

    Daewoo DN-W551 Service Manual 4.2. Front panel parts list PART NO. DESCRIPTION LOCATION Carbon Resistor 1/6W 1K±4% 20-200132-03100 1/6W 100Ω±5% 20-201012-03100 R3,R4,R5,R8 1/6W 10K±5% 20-201032-03100 1/6W 51K±5% 20-205132-03100 Electrolytic Capacitor C2 EC1 16V 100UF ±20% D6*12 30-410034-02110 Porcelain Capacitor 101 50V ±10%...
  • Page 34 Daewoo DN-W551 Service Manual 4.3 Mpeg parts list MTK1389QE/D PART NO. DESCRIPTION LOCATION Chip Capacitor 13410225140 22P 50V ±10% 0603 C232 13412213140 220P 50V ±10% 0603 172 ,C180,C189,C197 C175,C183,C195,C200,C 13411023140 1000P 50V ±10% 0603 37,C207,C208,C39,C162, C169 13413323140 3300P 50V ±10% 0603...
  • Page 35 Daewoo DN-W551 Service Manual 08,C109,C110,C111,C112 ,C114,C115,C116,C117,C 118,C119,C121,C123,C12 4,C125,C126,C144,C153, C155,C16,C171,C179,C2 04,C178,C194,C202,C18 6,C187,C188,C192,C193, C210,C211 Chip Resistor R4,R7,R15,R16,R24,R25, R26,R37,R50,R53,C129, C132,R49,R33,R34,R32, 11310005010 1/16W 0Ω±5% 0603 R88,R99, R110 R248 ,R206,R207,R208,R 225,R227,R68,R67, R27,R190 R119 11310105010 1/16W 10Ω±5% 0603 R117,R127 R71,R72,R73,R74 R151 11310335010 1/16W 33Ω±5% 0603 R150 R149 R144 R143...
  • Page 36 Daewoo DN-W551 Service Manual 11311535010 1/16W 15K±5% 0603 11311835010 1/16W 18K±5% 0603 11312035010 1/16W 20K±5% 0603 R136 ,R135,R152,R159,R 11312235010 1/16W 22K±5% 0603 R120 R129 R8,R17,R125,R134,R162, 11311045010 1/16W 100K±5% 0603 R171,R229,R232,R191,R 147,R157,R169,R179 11316825010 1/16W 6.8K±5% 0603 R175 11316885010 1/16W 6.8Ω±5% 0603 11310225010 1/16W 22Ω±5% 0603...
  • Page 37 Daewoo DN-W551 Service Manual 0,L44,L45,L46,L40,L41, L42,L43 14220270000 0805-2.7UH R000603123116 330UH ±10% Diode 15404001000 1N4001 D3,D5,D7,D9,D11,D12,D 13,D14,D15,D16,D17,D1 15504148000 1N4148 D19,D21,D22,D23,D24,D 8,D10 Chip Audion 14908550000 S8550 (DIP EBC) Q1,Q18,Q19,Q36,Q37,Q2 15003904000 2N3904 0,Q25,Q21,Q27 15008550000 SS8550(SOT23) Q5,Q4,Q31 Q11,Q14,Q16,Q17,Q22,Q 15003906000 2N3906(SOT23) 23,Q32,Q38,Q39,Q12 15008050000 SS8050(SOT23) Q29,Q28...
  • Page 38 Daewoo DN-W551 Service Manual 22824050180 /-24PIN 0.5mm 22804254190 4PIN 2.54mm 22806254190 6PIN 2.54mm Jumper Φ0.5mm*2.5mm C237,C23 23000250500 11800010430 MMTK010 REV:B3.3...

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