Daewoo DN-K538 Service Manual Download Page 38 | Manualshive

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Daewoo DN-K538 Service Manual

38

3.3. Video Trouble Service Flow Chart

3.3.1. Composite Video Trouble Service Flow Chart

Composite

Video

Trouble

NG

Check S-Video

Replace S-Video Parts

Output Signal

OK

NG

Check

“SETUP”

Item

See

“User

Manual”

OK

NG

Check JK6 Signal

Replace JK6

OK

NG

Check C38 R138 D5 Signal

Replace

C38

R138

D5

OK

Check U2 Pin151 Signal

NG

Replace U2

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Summary of Contents for DN-K538

Page 1: ... Diagram and Component Layout MPEG Circuit Diagram and Component Layout Front panel Circuit Diagram and Component Layout Servicing Procedures 35 Power Supply Trouble Service Flow Chart Read Disc Trouble Service Flow Chart Video Trouble Service Flow Chart Digital Audio Trouble Service Flow Chart Front Control Trouble Service Flow Chart Remote Control Trouble Service Flow Chart Parts List 43 Power p...

Page 2: ...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 exceeds 0 5 milliamps or if the resistance from chassis to either side of the power cord is less than 240 K ohms the unit is defective WARNING DO NOT return the unit to the customer until the problem or...

Page 3: ...rts moving pares including the Pickup Block as extremely high mechanical precision or required in these parts 1 3 1 2 When soldering the microprocessor and signal processing IC s use a ceramic soldering iron or a soldering iron whose metal part is grounded since they are not resistant to static electricity 1 3 1 3 When removing the solder or soldering the laser shorting lands for the Pickup Block ...

Page 4: ... following step ʊ Creating a software upgrade CD ʊ Use only a new CD R CD RW not an erased one ʊ Give the CD a name of your choice e g version and unit name ʊ Burn the unpacked documents on the CD R CD RW ʊ The root directory uppermost level of the software upgrade CD Attention If a failure should occur during the software upgrade e g a mains failure it may happen that the units function and a res...

Page 5: ...Daewoo DN K538 Service Manual 5 2 Circuit Diagram and Component Layout 2 1 MPEG IC Block Diagrams Fig 2 1 ZR36962 ...

Page 6: ...Daewoo DN K538 Service Manual 6 Fig 2 2 DRC block diagram Fig 2 3 Vaddis ZR36962 966 block diagram ...

Page 7: ...Daewoo DN K538 Service Manual 7 Table1 Vaddis 962 Pin s operational function description ...

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Page 25: ...Daewoo DN K538 Service Manual 25 2 2 1Power supply Circuit Diagram and Component Layout Philip Fig 2 1 Power Supply Circuit Diagram ...

Page 26: ...Daewoo DN K538 Service Manual 26 Fig2 2 Power Supply Assembly Drawing ...

Page 27: ...Daewoo DN K538 Service Manual 27 Fig 2 3 Power Supply Composite ...

Page 28: ...Daewoo DN K538 Service Manual 28 2 2 2Power supply Circuit Diagram and Component Layout VIPPER 22A Fig 2 4Power Supply Circuit Diagram ...

Page 29: ...Daewoo DN K538 Service Manual 29 Fig2 5 Power Supply Assembly Drawing ...

Page 30: ...Daewoo DN K538 Service Manual 30 Fig 2 6Power Supply Composite ...

Page 31: ...Daewoo DN K538 Service Manual 31 2 3 MPEG Circuit Diagram and Component Layout 2 3 1MPEG Circuit Diagram Fig 2 7 ZR36962 SDRAM Fig 2 8RF AMPLIFIER DRIVER ...

Page 32: ...Daewoo DN K538 Service Manual 32 Fig 2 9 AUDIO VIDEO FILTER Fig 2 10 MEMOR ...

Page 33: ...Daewoo DN K538 Service Manual 33 2 3 2 MPEG Assembly Drawing Fig 2 11 2 3 3 MPEG Composite Fig 2 12 ...

Page 34: ...Daewoo DN K538 Service Manual 34 2 4 Front panel Circuit Diagram and Component Layout Fig 2 13 Front Panel Circuit Diagram Fig 2 14 Front Panel Assembly Drawing Fig 2 15 Front Panel Composite ...

Page 35: ...t 嗻 Philip 嗼 Power Supply Block Trouble NG Check FU1 Condition Replace FU1 OK NG Check F01 Condition Replace F01 OK Check on D1 D2 D6 D7 NG D8 D9 D10 D11 D12 D13 D14 Output Voltage Condition OK NG Check on U1 Replace U1 Voltage Condition Pin1 2 4V Pin2 0V Pin3 2 6V NG NG Check on U4 Replace U4 NG NG Check on U3 Replace U3 Check CN1 Output Voltage ...

Page 36: ... 嗼 Power Supply Block Trouble NG Check FU1 Condition Replace FU1 OK NG Check F01 Condition Replace F01 OK Check on D1 D2 D6 D7 NG D8 D9 D10 D11 D12 Output Voltage Condition OK NG Check on U1 Replace U1 Voltage Condition Pin1 2 0V Pin2 0V Pin3 2 6V NG NG Check on U4 Replace U4 NG NG Check on U3 Replace U3 Check J3 Output Voltage ...

Page 37: ...acing 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 Before checking the NO Disc Trouble ensure excluding the following possibilities The test disc is damage AC power supply voltage dropped below the minimum required level DVD disc region code and color sys...

Page 38: ...posite Video Trouble Service Flow Chart Composite Video Trouble NG Check S Video Replace S Video Parts Output Signal OK NG Check SETUP Item See User Manual OK NG Check JK6 Signal Replace JK6 OK NG Check C38 R138 D5 Signal Replace C38 R138 D5 OK Check U2 Pin151 Signal NG Replace U2 ...

Page 39: ...w Chart Composite Video Trouble NG Check S Video Output Signal Replace S Video Parts OK NG Check SETUP Item See User Manual OK NG Check J6 Signal Replace J6 OK NG Check R142 R144 C124 C153 Replace R142 or R144or C124 or C153 OK Check U2 Pin154 152 signal NG Replace U2 ...

Page 40: ...Flow Chart Digital Audio Trouble NG Check SETUP Item See User Manual OK NG Check Optical Coaxial Out Signal Replace Optical Coaxial OK NG Check JK3 JK1 B Signal Replace JK3 JK1 B OK NG Check Q1 Signal Replace Q1 OK NG Check R5 C1 Replace R5 C1 OK NG Check U2 Replace U2 ...

Page 41: ...al 41 3 5 Front Control Trouble Service Flow Chart Front Control Trouble NG Check between CN1 Connection Replace CN1 OK NG Check U1 pin7 Vol 5V Check C7 C1 R8 OK OK NG Check LED Array Replace U1 Replace C7 C1 R8 Replace LED Array ...

Page 42: ...l 42 3 6 Remote Control Trouble Service Flow Chart Remote Control Trouble NG NG Check Remote Control Replace Battery Replace Control OK NG Check REV1 Pin1 Voltage Check Power Supply OK Check REV1 Pin3 Output Signal NG Replace REV1 ...

Page 43: ...Mȍ 1 R1 Porcelain Capacitor 14 32 304713 05100 470PF 50V 1 C10 15 32 301044 05100 104 50V 4 C6 C8 C11 C20 Electrolytic Capacitor 16 30 401034 05100 50V 10uF 1 C9 17 30 402234 14100 400V 22uF 1 C14 18 30 410034 02110 16V 100uF 1 C19 19 30 447034 02110 16V 470uF 3 C3 C4 C5 20 30 400164 01111 10V 1000uF 20 D10 12 1 C1 High Voltage Capacitor 21 32 401034 17100 103 1000V 20 1 C18 22 33 347003 25100 400...

Page 44: ...L1 Transformer 34 42 022112 02000 EEL22 5 7 1 T2 35 42 032014 01000 UT 20 UL 1 T1 Fuse Tube 36 52 001311 11200 1A 250V 20 5MM UL 1 FU1 Thermistor 37 23 201002 00000 NTC 10D 9 1 F01 Jack 38 48 111031 20100 3 96 3P 1 CN2 Jumper 39 51 110009 10800 L 6MM ĭ 0 5MM 1 JP1 40 51 110014 10800 L 15MM ĭ 0 5MM 1 JP2 PCB 41 46 008842 12400 DVD 8842 LED POWER REV 1 0 1 Connector 42 48 111091 20100 2 54 9P White ...

Page 45: ...00U P3 5 1 C1 12 013 DCH471 M4400 16V 470U P3 5 3 C3 C4 C5 13 013 DEJ470 M1300 50V 47U P2 5 1 C9 14 013 DMJ470 M7600 400V 47U P2 5 1 C14 15 015 PT224K PX152 224 275V 10 L 15 2MM 2 C12 C13 High Voltage Capacitor 16 014 AKK103 MZX00 103 1000V f 1 C18 17 014 AMK222 MZX00 222 400V UL 1 C15 Diode 18 003 HER105 L0B00 HER105 3 D1 D2 D6 19 003 HER107 L0B00 HER107 1 D7 20 003 HER303 L0B00 HER 303 1 D12 21 ...

Page 46: ...Service Manual 46 28 026 1792WZ 03X01 3 96 3P 1 J2 29 026 1254WZ 08X01 2 54 8P 1 J3 Jumper 30 008 H00130 00X05 L 13MM ĭ 0 5MM 1 JP1 Fuse Tube 31 029 01000D 10F01 1A 250V 20 5MM UL 1 F1L PCB 32 019 DV8828 PW040 1 6MM 1 ...

Page 47: ... 2 C2 C6 30 420034 02110 16V 220UF 20 D6 12 1 C5 Porcelain Capacitor 5 32 301013 05100 101 50V 10 3 C3 C4 C7 32 301045 05100 104 50V 20 80 F5 D6 2 C2 C6 Diode 6 11 02SD10 21100 Round 3 red 1 D1 Receiver 7 57 MR6659 56608 5V BTM 1838 1 REV1 Jumper 8 51 110004 10800 L 4MM ĭ 0 5MM 1 JMP1 9 51 110010 10800 L 10MM ĭ 0 5MM 2 JMP3 JMP4 Jiggle Switch 10 55 002202 22000 6 6 6MM 250g 6 K1 K2 K3 K4 K5 K6 PCB...

Page 48: ...00 C111 C72 4 P000603101050 100P 0603 3 C5 C106 C102 5 P000603151050 150P 0603 5 C153 C12 C38 C24 C32 6 P000603181050 180P 0603 6 C105 C101 C9 C98 C133 C145 7 P000603201050 200P 0603 7 C114 C112 AC40 C7 C77 C78 C81 8 P000603221050 220P 0603 1 AC34 P000603471050 470P 0603 2 C120 C121 9 P000603102050 C102 0603 7 C30 C23 C3 C118 C2 C39 C31 10 P000603222050 C222 0603 2 AC4 AC66 P000603103050 C103 0603...

Page 49: ...11ER40 20 R000805101116 100R 0805 1 EL2 21 R000603151116 150R 0603 1 R152 22 R000603221116 220R 0603 4 R13R16R9R10 23 R000603391116 390R 0603 1 R103 24 R000603471116 470R 0603 1 R6 25 R000603102116 1K 0603 6 R58 R112 R9 ER173 R38 R82 26 R000805102116 1K 0805 1 L1 27 R000603122116 1 2K 0603 1 R71 28 R000603152116 1 5K 0603 7 R62 R29 R3 C89 C92 C140 C142 29 R000603202116 2K 0603 4 R134 R2 R3 R25 30 ...

Page 50: ...8 ER179 ER189 ER155ER156 ER191 36 R000603123116 12K 0603 1 R245 37 R000603153116 15K 0603 3 R93 R36 R35 38 R000603183116 18K 0603 1 ER158 39 R000603203116 20K 0603 1 R244 40 R000603223116 22K 0603 1 R76 41 R000603333116 33K 0603 13 R41 R47 R50 R56 R78 R84 R119 R177 R102 R107 R95 R9 R89 42 R000603513116 51K 0603 3 R83 R70 R81 43 R000603683116 68K 0603 1 ER175 44 R000603104116 100K 0603 1 R111 45 R0...

Page 51: ...1 EQ17 IC 57 Y000005888000 CS4334 CE27 11 S08NB 1 U4 58 Y000000962000 AM5888S HSOP 28 375 0 8 1 IC7 59 Y000002402000 962 LQFP 20 8Pin 1 U2 60 Y000004558000 24C02 SOIC 8Pi n 1 U8 61 Y000000400000 4558 TSOP50 4 IC8 EU6 IC3 IC12 62 Y000000416000 400 800FLAS H 48Pin TSOP 4 8 1 U7 63 Y000000116000 4 16 LQFP 25 7 1 U5 64 Y000005888000 1 16 U3 Jack 65 J000000006000 6P 2 0 2 CN15 CN12 66 J000000005000 5P ...

Page 52: ...al 52 75 J002729000000 S VIDEO 1 AV1 76 J000004006001 AV RCA6 1 J3 77 J000005024001 24p 1 CN2 Chip Bead 78 F000603000000 0R 0603 4 FB11 FB15 FB5 FB4 Crystal 79 T000027000000 27MHz 20P DIP 1 Y1 PCB 80 P000966000001 94 5mm 79 9mm 1 ...

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