DAEWOO ELECTRONICS DM-K 42, Service Manual

Page 1: ...S M No OSDMK42001 Dec 2004 Caution In this Manual some parts can be changed for improving their performance without notice in the parts list Model DM K 42...

Page 2: ...it Diagram and Component Layout Front panel Circuit Diagram and Component Layout Servicing Procedures 28 Power Supply Trouble Service Flow Chart Read Disc Trouble Service Flow Chart Video Trouble Serv...

Page 3: ...Leakage Current Check Resistance Check Before returning the unit to the customer make sure you make either 1 a leakage current check or 2 a line to insulated resistance check If the leakage current e...

Page 4: ...EAR EXTERIOR 1 3 Precautions 1 3 1 ESD Precautions in Repairing 1 3 1 1 Do not apply excessive pressure on the mechanical parts moving pares including the Pickup Block as extremely high mechanical pre...

Page 5: ...rt circuit the laser diode shorting lands beforehand 1 4 Software Upgrade You can upgrade DVD Player using the software we provide as following step Creating a software upgrade CD Use only a new CD R...

Page 6: ...Daewoo DM K42 Service Manual Page 5 2 Circuit Diagram and Component Layout 2 1 MPEG IC Block Diagrams Fig 2 1 ZR36768 762...

Page 7: ...Daewoo DM K42 Service Manual Page 6 Fig 2 2 DRC block diagram Fig 2 3 CSTP block diagram...

Page 8: ...Daewoo DM K42 Service Manual Page 7 Fig 2 4 Vaddis ZR36768 762 block diagram...

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Page 21: ...Daewoo DM K42 Service Manual Page 20 2 2 Power supply Circuit Diagram and Component Layout Fig 2 5 Power Supply Circuit Diagram...

Page 22: ...Daewoo DM K42 Service Manual Page 21 Fig 2 6 Power Supply Assembly Drawing Fig 2 7 Power Supply Composite...

Page 23: ...Daewoo DM K42 Service Manual Page 22 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 24: ...Daewoo DM K42 Service Manual Page 23 Fig 2 10 AUDIO VIDEO FILTER Fig 2 11 MEMORY...

Page 25: ...Daewoo DM K42 Service Manual Page 24 Fig 2 12 POWER AV PORT 2 3 3 MPEG Composite Fig 2 14...

Page 26: ...Daewoo DM K42 Service Manual Page 25 2 3 2 MPEG Assembly Drawing Fig 2 13...

Page 27: ...Daewoo DM K42 Service Manual Page 26 2 3 2 MPEG Assembly Drawing Fig 2 13...

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Page 29: ...Daewoo DM K42 Service Manual Page 28 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 30: ...wer Supply Block Trouble NG Check F901 Condition Replace F901 OK Check F901 NG Pin4 Pin6 Pin8 Replace F901 Condition OK Check on D101 D102 D103 D104 D105 Output Voltage Condition NG Check on Q103 Pin1...

Page 31: ...lacing the complete DVD loading unit instead of repairing the DVD loading unit in local workshop It is suggested to prove the faulty of a DVD loading unit by replacement by a good DVD loading unit Bef...

Page 32: ...Video Trouble Service Flow Chart Composite Video Trouble NG Check SETUP Item See User Manual OK NG Check Y1 Output Signal Replace Y1 Parts OK NG Check C128 R106 Signal Replace C128 U1 R106 OK NG Check...

Page 33: ...posite Video Trouble NG Check SETUP Item See User Manual OK NG Check Y1 Output Signal Replace Y1 Parts OK NG Check C122 C125 Signal Replace C122 C125 or U1 OK NG Replace C124 L7 R104 Check C124 C127 S...

Page 34: ...8 Signal Replace U1 OK NG Check U10 Pin1 3 Signal Replace U1 OK NG Check U10 Pin7 5V Check Power Supply OK NG Check U10 Pin5 8 Signal Replace U10 OK NG Check U11 between Check U11 Pin2 6 Signal Pin2 6...

Page 35: ...w Chart Digital Audio Trouble NG Check SETUP Item See User Manual OK NG Check U5 Pin9 Signal Replace U1 OK NG Check U5 Pin8 Signal ReplaceU5 OK NG CheckR130 Signal Check External Set OK NG Check C147...

Page 36: ...ice Flow Chart Front Control Trouble NG Check between JP2 and CN903 Connection OK Replace Check between JP1 and CN2 Connection NG OK NG Check U2 Pin9 25Voltage See 3 1 Check U2 OK OK Replace VFD SEG S...

Page 37: ...uble Service Flow Chart Remote Control Trouble NG NG Check Remote Control Replace Battery Replace Control OK NG Check U3 Pin2 Voltage Check Power Supply OK NG Check U3 Pin3 Output Signal Replace U3 OK...

Page 38: ...30133110 RYG1 1W 27K J 1 R903 14 M2R8810330133110 RYG1 1W 10K J 1 R910 15 M2I00SS2N60B0000 SS2N60B TO220 1 Q901 AC Porcelain Capacitor 16 M2C1102G54000022 CT7 400VAC 102M 3 C903 C904 C909 17 M2C1104F8...

Page 39: ...BC 20229 1 LF901 IC M2I00PC817B00000 PC817B 1 U902 M2ILTV8170000000 LTV817 1 U902 42 M2I000TL43100100 TL431A TO92 1 Q104 43 M2I0NCP1200P6000 NCP1200P60 1 U901 44 M2U110T0A5250V00 T0 5A 250V 1 F901 45...

Page 40: ...R137 15 M2R0015131000000 RC 03K151JT 1 R19 16 M2R0022131000000 RC 03K221JT 7 R27 R28 R51 R52 R53 R56 R132 17 M2R0039131000000 RC 03K391JT 1 R20 18 M2R0047131000000 RC 03K471JT 3 R78 R79 R131 19 M2R005...

Page 41: ...00T 4 C121 C124 C127 C130 47 M2C0221F30060300 CC 0603CG221JN500T 1 C60 48 M2C0471F30060300 CC 0603CG471JN500T 1 C73 49 M2C0561F30060300 CC 0603CG561JN500T 3 C71 C84 C93 50 M2C0102F44060300 CC 0603B102...

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Page 43: ...3 L24 L25 L26 FB1 L2 FB3 FB4 L20 FB2 Color loop Inductor 69 M2H4LGA1UH1J0307 LGA0307 1 1UH K 4 L6 L7 L8 L9 Ferrite Bead 70 M2H1RH3560083560 RH3 5 6 0 8 2 L12 L15 Diode 71 M2D1IN4148110000 1N4148 DO 35...

Page 44: ...M2I0CS4334K00000 CS4334K SOIC8 1 U10 88 M2IAZ1117H330000 AZ1117H 3 3V SOT 223 1 U13 89 M2IAZ11170000000 AZ1117H ADJ SOT 223 1 U14 90 M2I000D595400000 D5954 HSOP28 1 U7 91 M2IAZ4558AM00000 AZ4558AM SO8...

Page 45: ...5 5 M2R1133330633110 RT13 1 6W 333 J 4 R6 R7 R8 R9 6 M2R1151330633110 RT13 1 6W 513 J 1 R2 7 M2R1147130633110 RT13 1 6W 471 J 1 R10 Diode 8 M2D1IN4148110000 1N4148 DO 35 3 D2 D3 D4 9 M2D100374N220000...

Page 46: ...686 AHYE ON DONG MAPO GU S E OUL KOR E A C P O BOX 8003 S E OUL KOR E A PRINTED DATE DEC 2004 DAE WOO E LE CTR ONICS COR P...