Daewoo DM-K40 Service Manual
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Daewoo DM-K40 Service Manual

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S/M No : OSDMK40001
Model : DM-K40
Caution
: In this Manual, some parts can be changed for improving, their
performance without notice in the parts list.
Dec . 2004

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Summary of Contents for Daewoo DM-K40

  • Page 1 S/M No : OSDMK40001 Model : DM-K40 Caution : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. Dec . 2004...

  • Page 2: Table Of Contents

    Daewoo DM-K40 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 DM-K40 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 DM-K40 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 DM-K40 Service Manual laser diode or not resistant to static electricity. 1.3.2. DVD Loading Unit Precautions when handling the Mechanism Block 1.3.2.1. Do not loosen any screws in the Pickup Block. 1.3.2.2. Do not adjust any screws in the Mechanism Block except for “Tilt Adjust Screws”, as they are adjusted precisely at...

  • Page 6: Circuit Diagram And Component Layout

    Daewoo DM-K40 Service Manual 2. Circuit Diagram and Component Layout 2.1. MPEG IC Block Diagrams Fig. 2-1 ZR36768/762 Page 5...
  • Page 7 Daewoo DM-K40 Service Manual Fig. 2-2 DRC block diagram Fig.2-3 CSTP block diagram Page 6...
  • Page 8 Daewoo DM-K40 Service Manual Fig.2-4 Vaddis ZR36768/762 block diagram Page 7...
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  • Page 21: Power Supply Circuit Diagram And Component Layout

    Daewoo DM-K40 Service Manual 2.2.Power supply Circuit Diagram and Component Layout Fig 2-5 Power Supply Circuit Diagram Page 20...
  • Page 22 Daewoo DM-K40 Service Manual Fig 2-6 Power Supply Assembly Drawing Fig 2-7 Power Supply Composite Page 21...

  • Page 23: Mpeg Circuit Diagram And Component Layout

    Daewoo DM-K40 Service Manual 2.3. MPEG Circuit Diagram and Component Layout 2.3.1. MPEG Circuit Diagram Fig 2-8 ZR36762/ZR36768&SDRAM Fig2-9 RF AMPLIFIER&DRIVER Page 22...
  • Page 24 Daewoo DM-K40 Service Manual Fig 2-10 AUDIO&VIDEO FILTER Fig 2-11 MEMORY Page 23...
  • Page 25 Daewoo DM-K40 Service Manual Fig 2-12 POWER&AV PORT Page 24...
  • Page 26 Daewoo DM-K40 Service Manual 2.3.2. MPEG Assembly Drawing (Fig 2-13) Page 25...
  • Page 27 Daewoo DM-K40 Service Manual 2.3.3. MPEG Composite (Fig 2-14) Page 26...

  • Page 28: Front Panel Circuit Diagram And Component Layout

    Daewoo DM-K40 Service Manual 2.4. Front panel Circuit Diagram and Component Layout Fig 2-16 Front Panel Circuit Diagram Fig 2-17 Front Panel Assembly Drawing Fig 2-18 Front Panel Composite Page 27...

  • Page 29: Servicing Procedures

    Daewoo DM-K40 Service Manual 3. Servicing Procedures 3.1. Power Supply Trouble Service Flow Chart Power Supply Block Trouble Check F901 Condition Replace F901 Check F901 Pin4/Pin6/ Pin8 Replace F901 Condition Check on D101/D102/ D103/D104/D105 Output Voltage Condition Check on Q103 Pin1...

  • Page 30: Read Disc Trouble Service Flow Chart

    Daewoo DM-K40 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 31: Video Trouble Service Flow Chart

    Daewoo DM-K40 Service Manual 3.3. Video Trouble Service Flow Chart 3.3.1. Composite Video Trouble Service Flow Chart Composite Video Trouble Check “SETUP” Item See “User Manual” Check Y1 Output Signal Replace Y1 Parts Check C128/R106 Signal Replace C128/U1/R106 Check C130 Signal...
  • Page 32 Daewoo DM-K40 Service Manual 3.3.2. S-Video Trouble Service Flow Chart Composite Video Trouble Check “SETUP” Item See “User Manual” Check Y1 Output Signal Replace Y1 Parts Check C122/C125 Signal Replace C122/C125 or U1 Replace C124/L7/R104 Check C124/C127 Signal or C127/L8/R105...

  • Page 33: Composite Analogy Audio Trouble Service Flow Chart

    Daewoo DM-K40 Service Manual 3.4. Composite Analogy Audio Trouble Service Flow Chart Composite Analogy Audio Trouble Check R8 Signal Replace U1 Check U10 Pin1~3 Signal Replace U1 Check U10 Pin7 +5V Check Power Supply Check U10 Pin5/8 Signal Replace U10...

  • Page 34: Digital Audio Trouble Service Flow Chart

    Daewoo DM-K40 Service Manual 3.5. Digital Audio Trouble Service Flow Chart Digital Audio Trouble Check “SETUP” Item See “User Manual” Check U5 Pin9 Signal Replace U1 Check U5 Pin8 Signal ReplaceU5 CheckR130 Signal Check External Set Check C147 Replace C147...

  • Page 35: Front Control Trouble Service Flow Chart

    Daewoo DM-K40 Service Manual 3.6. Front Control Trouble Service Flow Chart Front Control Trouble Check between CN1 and CN903 Connection Replace Check between CN2 and CON2 Connection Check U2 Pin14/27/38Voltage See: 3.1 Check U2 Replace VFD SEG Signal Check U1 Pin1/2/34/35 Voltage...

  • Page 36: Remote Control Trouble Service Flow Chart

    Daewoo DM-K40 Service Manual 3.7. Remote Control Trouble Service Flow Chart Remote Control Trouble Check Remote Control Replace Battery Replace Control Check U3 Pin2 Voltage Check Power Supply Check U3 Pin3 Output Signal Replace U3 Check U1 Pin201 Input Signal...

  • Page 37: Parts List

    Daewoo DM-K40 Service Manual 4. Parts List 4.1. Power parts list PART NO. DESCRIPTION LOCATION Carbon Resistor M2R1130330433110 RT14-1/4W-30K-J R905 M2R1139330433110 RT14-1/4W-39K-J R902 M2R1110030433110 RT14-1/4W-10R-J R908 R118 M2R1120130433110 RT14-1/4W-200R-J R107,L101 M2R1110230433110 RT14-1/4W-1K-J R110 M2R1110330433110 RT14-1/4W-10K-J R111,R112,R102 M2R1122330433110 RT14-1/4W-22k-J R105 M2R1110130433110...
  • Page 38 Daewoo DM-K40 Service Manual PART NO. DESCRIPTION LOCATION M2H4LGA33UHK0307 LGA0307-33uH-K L102 M2H20BC202290000 BC-20229 LF901 M2ILTV8170000000 LTV817 U902 M2I000TL43100100 TL431A TO92 Q103 M2I0NCP1200P6000 NCP1200P60 U901 M2U110T0A5250V00 T0.5A 250V F901 M2P3300000520000 5 ＊ 20 F901 Transformer M2T11EEL193883B0 EEL19-3883B TR901 Jack M2P2200000VH3000 VH-3...

  • Page 39: Mepg Parts List

    Daewoo DM-K40 Service Manual 4.2. MEPG parts list DESCRIPTION LOCATION PART NO. Chip Resistor M2R001R030811000 RC-05K1R0JT R66 R67 R68 R69 R140 M2R0010030811000 RC-05K100JT M2R0010130811000 RC-05K101JT R5 R82 R83 R84 M2R0033130811000 RC-05K331JT R130 M2R0010230811000 RC-05K102JT R6 R7 M2R0000031000000 RC-03K000OT 10 R11 R21 R22 R23 R41...
  • Page 40 Daewoo DM-K40 Service Manual DESCRIPTION LOCATION PART NO. 33 M2R0018331000000 RC-03K183JT R108 R116 34 M2R0022331000000 RC-03K223JT R45 R46 35 M2R0033331000000 RC-03K333JT 36 M2R0047331000000 RC-03K473JT 37 M2R0010431000000 RC-03K104JT R18 R95 38 M2R0010531000000 RC-03K105JT Chip Row Resistor 39 M2R9947030899004 RCML08W470JT 40 M2R9975030899004...
  • Page 41 Daewoo DM-K40 Service Manual DESCRIPTION LOCATION PART NO. C152 C154 C155 C157 C160 C146 C162 C147 C101 C97 Electrolytic Capacitor 60 M2C2475F89051122 CD11-50V-4.7UF-M 61 M2C2106E57051122 CD11-25V-10UF-M C1 C131 C132 62 M2C2107B57051122 CD11-16V-100UF-M 24 C5 C7 C9 C11 C21 C166 C28 C39 C89 C99 C150 C96...
  • Page 42 Daewoo DM-K40 Service Manual DESCRIPTION LOCATION PART NO. 84 M2I0ZR3670700000 Zoran ZR36707-PQFP64 M2I029LV80007000 MBM29LV800BA-70 PFCN M2I039VF80000000 SST 39VF800A-70-4C-EK-TSOP48 SST 39VF800-70-4C-EK-TSOP48 M2I039VF80000001 M2I0M29W80070000 M29W800DT-TSOP48 TE28F160C3BD70 M2ITE28F160C0000 SST 39VF800-90-4C-EK-TSOP48 M2I039VF80090000 M29W800DB-70N M2I029W800B70000 M2IM12L16161A000 M12L16161A-7T U2 U3 M2IVT36171600000 VT361716T-6AA U2 U3 M2ITM50S11600000 TM50S116T-7...

  • Page 43: Front Panel Parts List

    Daewoo DM-K40 Service Manual 4.3. Front panel parts list PART NO. DESCRIPTON LOCATION Carbon Resistor 1 M2R1110330633110 RT13-1/6W-10K-±5% 4 R1 R2 R3 R4 2 M2R1133330633110 RT13-1/6W-33K-±5% 9 R5 R6 R7 R8 R9 R10 R11 R12 R13 3 M2R1115230633110 RT13-1/6W-1K5-±5% 1 R14...
  • Page 44 DAE WOO E LE C T R ONIC S C OR P . 686, AHY E ON-DONG , MAP O-G U, S E OUL, K OR E A. C .P .O. B OX 8003 S E OUL K OR E A PR INTE D DATE : DE C 2004...

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