Daewoo DV-2500H Service Manual Download Page 37 | Manualshive

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DV-2500H Service Manual

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3.3. Video Trouble Service Flow Chart

3.3.1. Composite 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 C165/C166 Signal

Replace C165/C166

OK

NG

Check R217/R224 Signal

ReplaceR217/R224

OK

NG

Check Q27/Q28 Pin Signal

Replace Q27/Q28 around parts

OK

OK

Check CN14 Pin6 Signal

Check External Set

NG

Replace CN14 connection

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Summary of Contents for DV-2500H

Page 1: ...MAY 2007 Model DV 2500H OSDV2500H1 ...

Page 2: ...DV 2500H Service Manual 1 DV 2500H SERVICE MANUAL ...

Page 3: ...ent Layout Front panel Circuit Diagram and Component Layout Karaoke Circuit Diagram and Component Layout Servicing Procedures Power Supply Trouble Service Flow Chart Read Disc Trouble Service Flow Chart Video Trouble Service Flow Chart Composite Analogy Audio Trouble Service Flow Chart Front Control Trouble Service Flow Chart Remote Control Trouble Service Flow Chart Parts List Power parts list MP...

Page 4: ...table DC supply or batteries during initial check out procedures 1 1 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 defect...

Page 5: ...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 Laser symbol THIS IS COMPACT DISC PLAYER IS CLASSIFIED AS A CLASS 1 LASER PRODUCT THE LASS 1 LASER PRODUCT LABEL IS LOCATED ON THE REAR EXTERIOR ...

Page 6: ...ns 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 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 Pi...

Page 7: ...nits function and a restart of the upgrade function are no longer possible If this should be the case you must replace the intergraded FLASH ICs with preprogrammed ICs see corresponding spare parts list Insert the upgrade CD see corresponding spare parts list and observe the hints on the display and on the screen of the TV set Carry out an initialization of the set Displaying the Software Version ...

Page 8: ...DV 2500H Service Manual 7 2 Circuit Diagram and Component Layout 2 1 MPEG IC Block Diagrams Fig 2 1 Vaddis888 ...

Page 9: ...DV 2500H Service Manual 8 Table1 Vaddis888 Pin Description ...

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Page 26: ...DV 2500H Service Manual 25 2 2 Power supply Circuit Diagram and Component Layout Fig 2 2 Power Supply Circuit Diagram Fig 2 3 Power Supply Assembly Drawing ...

Page 27: ...DV 2500H Service Manual 26 Fig 2 4 Power Supply Composite ...

Page 28: ...DV 2500H Service Manual 27 2 3 MPEG Circuit Diagram and Component Layout 2 3 1 MPEG Circuit Diagram Fig 2 5 AVOUT POWER Fig 2 6 AUDIO ...

Page 29: ...DV 2500H Service Manual 28 Fig 2 7 RF OPU Fig 2 8 FLASH ...

Page 30: ...DV 2500H Service Manual 29 Fig 2 9 MPEG 2 3 2 MPEG Assembly Drawing ...

Page 31: ...DV 2500H Service Manual 30 ...

Page 32: ...DV 2500H Service Manual 31 2 3 3 MPEG Composite ...

Page 33: ...DV 2500H Service Manual 32 2 4 Front panel Circuit Diagram and Component Layout ...

Page 34: ...DV 2500H Service Manual 33 2 5 Karaoke circuit Diagram and Component Layout ...

Page 35: ...r Supply Block Trouble NG Check F901 Condition Replace F901 OK Check U901 NG Pin1 Pin2 Replace U901 Condition OK Check on D101 D102 D103 D104 D105 Output Voltage Condition NG Check on Q103 Pin1 NG Replace Q103 Voltage Condition 2 5V NG NG Replace U902 Replace TR901 OK OK Check CON1 2 Output Voltage ...

Page 36: ...ng 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 system...

Page 37: ... Video Trouble NG Check SETUP Item See User Manual OK NG Check Y1 Output Signal Replace Y1 Parts OK NG Check C165 C166 Signal Replace C165 C166 OK NG Check R217 R224 Signal ReplaceR217 R224 OK NG Check Q27 Q28 Pin Signal Replace Q27 Q28 around parts OK OK Check CN14 Pin6 Signal Check External Set NG Replace CN14 connection ...

Page 38: ... See User Manual OK NG Check Y1 Output Signal Replace Y1 Parts OK NG Check C194 C195 C199 Replace C194 C195 C199 C200 C203 C204 Signal C200 C203 C204 OK NG Replace D10 D12 D13 D6 D11 D12 OK NG Check FB16 FB17 FB18 Signal Replace FB16 FB17 FB18 around parts OK NG Check CN14 Cable Check External Set Check D10 D12 D13 Signal ...

Page 39: ...eo Trouble NG Check SETUP Item See User Manual OK NG Check Y1 Output Signal Replace Y1 Parts OK NG Check C184 C185 C188 C189 Replace C184 C185 Signal C188 C189 OK NG Replace D8 D9 OK NG Check L4 L5 Signal Replace L4 L5 OK NG Check CN16 Pin Signal Check External Set Check D8 D9 Signal ...

Page 40: ...k U9 Pin5 7 Signal Replace U2 OK NG Check U9 Pin9 5V Check Power Supply OK NG Check U9 Pin23 27 Signal Replace U9 OK NG Check U8 U11 U13 Check U8 U11 U13 between Pin2 6 Signal Pin2 6 Parts OK NG Check U8 U11 U13 Check Power Supply Pin4 8 12V OK NG Check U8 U11 U13 Replace U8 U11 U13 Pin1 7 Signal OK Check Q13 Q14 Mute Parts ...

Page 41: ...le Service Flow Chart Front Control Trouble NG Check between JP1 and MPEG Connection OK Replace the cable between Check between JP2 and Power Supply Connection NG OK NG Check U2 Pin9 25 Voltage Check U2 OK SEG Signal NG OK Check U1 Pin1 7 Signal Replace U2 NG Replace U1 ...

Page 42: ... Trouble Service Flow Chart Remote Control Trouble OK 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 Check U2 IR Input Signal NG Replace U2 ...

Page 43: ...11 CL11 100V 333 J 1 C910 10 M2C4104H30000022 CL11 100V 104 J 1 C911 Porcelain Capacitor 11 M2C1104F84000022 CT 50V 104 Z 4 C107 C113 C117 C912 HI VOLT Capacitor 12 M2C1102M84000022 CT81 1KV 102 Z 1 C906 13 M2C1103L84000022 CT81 500V 103 Z 1 C110 ELECT Capacitor 14 M2C2476G59162522 CD29 47U 400V M 105 16 25 1 C905 15 M2C2336N59162622 CD263 33U 450V M 105 16 26 1 C905 16 M2C2107T59081522 CD288 35V ...

Page 44: ... L103 R106 33 M2H20BC202290000 BC20229 1 LF901 IC 34 M2IFSDL016500100 FSDL0165 1 U901 35 M2I00PC817B00000 PC817B DIP4 1 U902 Insurance Managing 36 M2U110T0A5250V00 T0 5A 250V 1 F901 Insure Header 37 M2P3300000520000 5 20 2 F901 Transformer 38 M2T11EEL221001E0 EEL22 1001E 1 TR901 Jack 39 M2P2200000VH3000 VH 3 1 CN901 M2P220000VH3B000 VH 3 B 1 SW901 40 M2P000000PH5A000 PH 5A 1 CON1 41 M2P000TJC35AB0...

Page 45: ...C69 C76 C95 C160 C205 6 M2C2335B89051122 CD11 16V 3 3U M 5 11 2 C118 C117 7 M2C2106B57051122 CD11 16V 10U M 5 11 2 C106 C116 8 M2C2226B89051122 CD11 16V 22UF M 85 5 11 1 C23 9 M2C2476B57051122 CD11 16V 47UF M 5 11 12 C24 C32 C37 C38 C39 C65 C79 C81 C88 C174 C206 C161 10 M2C2107B57051122 CD11 16V 100UF M 5 11 7 C11 C15 C18 C80 C87 C108 C162 11 M2C2476E57051122 CD11 25V 47UF M 5 11 2 C122 C124 Metal...

Page 46: ...H 6A B 1 CN10 22 M2P000000PH8A000 PH 8A 1 CN8 23 M2IDLT1131A00000 DLT1131A 1 CN11 24 M2P11000RCA1A000RCA 1A COAX 1 CN12 25 M2P110AV38410000 AV3 8 4 10 1 CN14 No Part Number Description QTY Location 26 M2P00000PH11A000 PH 11A 1 CN15 27 M2P660000S4KB000 S 4KB 1 CN16 28 M2P0000TJC35A000 TJC3 5A 1 CN17 29 M2P0000TJC34A000 TJC3 4A 1 CN1 Chip Resistor 30 M2R0000030811000 RC 05K000OT 2 R247 R350 31 M2R00...

Page 47: ...31000000 RC 03K750JT 1 R241 42 M2R0075021000000 RC 03K750FT 6 R16 R17 R18 R19 R20 R21 43 M2R0082021000000 RC 03K820FT 1 R300 44 M2R0010111000000 RC 03K101FT 2 R64 R63 45 M2R0015131000000 RC 03K151JT 1 R244 46 M2R0022131000000 RC 03K221JT 5 R6 R23 R50 R52 R30 47 M2R0027131000000 RC 03K271JT 4 R24 R31 R32 R34 48 E2R039202229 RC 03K3920FT 392R 1 R14 49 M2R0043121000000 RC 03K431FT 2 R26 R44 50 M2R004...

Page 48: ...06 R121 R161 R183 R261 R262 R265 61 M2R0015331000000 RC 03K153JT 4 R3 R231 R236 R237 No Part Number Description QTY Location 62 M2R0020321000000 RC 03K203FT 1 R8 63 M2R0020331000000 RC 03K203JT 6 R124 R109 64 M2R0022331000000 RC 03K223JT 2 R104 R119 65 M2R0030331000000 RC 03K303JT 1 R2 66 M2R0043331000000 RC 03K433JT 1 R4 67 M2R0047331000000 RC 03K473JT 2 R212 R194 68 M2R0051331000000 RC 03K513JT ...

Page 49: ...0161F30060300 CC 0603CG161JN500T 3 C179 C185 C189 84 M2C0221F30060300 CC 0603CG221JN500T 5 C72 C75 C168 C169 C170 85 M2C0271F30060300 CC 0603CG271JN500T 3 C180 C186 C190 86 M2C0102F44060300 CC 0603B102K500NT 13 C1 C2 C9 C14 C71 C74 C98 C99 C182 C183 C114 C104 C141 87 M2C0103F44060300 CC 0603B103KN500T 26 C25 C26 C27 C28 C29 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C54 C56 C57 C58 C59 C6...

Page 50: ... 98 M2HL033U250A0805 L0805 0 33UH 250MA K 3 L6 L7 L8 99 M2H0500M01U10805L0805 1 1UH 500MA K 3 L3 L4 L5 Chip Diode 100 M2D0BAT54S000000BAT54S SOT 23 7 D1 D7 D8 D9 D10 D12 D13 101 M2D0IN4148110000 IN4148 LL 34 7 D5 D6 D20 D21 D22 D23 D24 Chip Transistor 102 M2Q002N700200000 2N7002 SOT 23 2 Q2 Q1 103 M2Q002N390400000 2N3904 SOT23 12 Q3 Q10 Q11 Q12 Q13 Q14 Q15 Q23 Q29 Q31 Q30 Q32 104 E2Q00S8550D9 S855...

Page 51: ... U6 113 M2I00LM358D00000 LM358D SO8 1 U7 114 M2IAZ4558AM00000 AZ4558AM E1 1 U8 115 E1M0DA116009 DA1160F 1 U9 116 M2IAZ1117H330000 AZ1117H 3 3 TRE1 1 U15 Socket 117 E2P824P0M599 FPC 24P 0 5MM 1 CN5 E2P824P05MM9 FPC 24P 0 5MM 1 CN5 118 E2P951U019S9 51U019S 336N B HDMI Chip Socket 1 JR1 PCB 119 E2B6006608A9 MC6006 ZR36888 VER1 4 P N0608A 1 L120 W120 1 2MM 4 3 Front panel parts list No Part Number Des...

Page 52: ...2107B57060522 CD11 16V 100uF M 6 5 2 C2 C3 Diode 7 M2D1IN4148110000 IN4148 D0 35 3 D2 D3 D4 LBD 8 0D1LT037420N LT0374N 43 M1 1 D1 Light Bracket 9 M3PDN6010709 DND0601DM Light Bracket 1 Use on D1 Jiggle Switch 10 M2S0KFCA06D05001KFC A06 2WB 230g 6 S1 S2 S3 S5 S6 S7 IR Receiver 11 M2I538AC51590000 HRM538AC5159 1 U4 Receriver Sponge Mat 12 M4P4400700701022 Sponge Mat L7 W7 H10 1 Under IR LED Mat 13 M...

Page 53: ...oke circuit parts list No Part Number Description QTY Location Electrolytic Capacitor 1 M2C2106C89051122 CD11 10V 10uF M 5 11 2 C909 C921 2 M2C2107B57051122 CD11 16V 100U M 5 11 3 C1 C919 C925 2 0C2106B5CK0N CD11 16V 10uF M 5 11 1 C4 3 M2C2105F57050722 CD11 50 1UF M 5 7 2 C906 C908 4 M2C2476B57051122 CD11 16V 47uF M 5 11 3 C917 C922 C927 Porcelain Capacitor 5 M2C1104F44000022 CT81 50V 104 K 4 C913...

Page 54: ... Chip Resistor 15 M2R004R730811000 RC 05K4R7JT 1 R918 16 M2R0047030811000 RC 05K470JT 2 R923 R924 17 M2R0010230811000 RC 05K102JT 2 R903 R922 18 M2R0047230811000 RC 05K472JT 2 R912 R925 19 M2R0056230811000 RC 05K562JT 1 R908 20 M2R0068230811000 RC 05K682JT 1 R914 21 M2R0010330811000 RC 05K103JT 9 R901 R902 R905 R909 R910 R911 R915 R917 R919 22 M2R0015330811000 RC 05K153JT 2 R913 R916 23 M2R0022330...

Page 55: ...H0220R00000805 L0805 220R 2 L5 L6 No Part Number Description QTY Location Diode 33 M2D1BZX2V4220001 BZX 1 2W 2 4V DO 35 2 D1 D2 Transistor 34 M2Q100C181502200 2SC1815 GR 1 Q903 Socket 35 M2P0000TJC35A000 TJC3 5A 1 JP902 36 M2P0000TJC36A000 TJC3 6A 1 JP901 37 M2P000000PH4A000 PH 4A 1 JP903 38 M2P77CK635301000 CK 6 35 3 01 four core MIC seat 2 MIC1 MIC2 39 M2P99PUBARI04000 PUBARI 04FTBSINN2N0 1 JP5 ...

Page 56: ...DV 2500H Service Manual 55 42 E2B2003609A9 MC2003 0601 00M VER1 0 P N 0609A 1 L69 5 W68 5 1 6MM ...

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