DAEWOO ELECTRONICS DLT-42U1GMB Service Manual
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DAEWOO ELECTRONICS DLT-42U1GMB Service Manual

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Service Manual
LCD TV
CHASSIS : SL-701T
Model : DLT - 42U1GMB
S/M NO. : DSL701TEF0
DLT - 42G1LTBD
DLT - 46U1UMB
DLT - 46U1STB
Dec. 2007

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Summary of Contents for DAEWOO ELECTRONICS DLT-42U1GMB

  • Page 1 All manuals and user guides at all-guides.com S/M NO. : DSL701TEF0 Service Manual LCD TV CHASSIS : SL-701T Model : DLT - 42U1GMB DLT - 42G1LTBD DLT - 46U1UMB DLT - 46U1STB Dec. 2007...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com Contents ………………………………………………………………………………… 3 1.Safety Precaution 2.Product Specification …………………………………………………………………………… 4 2-1.Product Specification………………………………………………………………………… 4 2-2.Available Input Signal ……………………………………………………………………… 5 3.Block Diagram …………………………………………………………………………………… 8 3-1.Signal Block Diagram ……………………………………………………………………… 8 3-2.Power Tree …………………………………………………………………………………… 9 4.SERVICE MODE ………………………………………………………………………………… 10 4-1.EEPROM initial DATA ………………………………………………………………………...

  • Page 3: Safety Precaution

    All manuals and user guides at all-guides.com 1. Safety Precautions (1) When moving or laying down a LCD Set, please deal with care. Avoid any impact towards the LCD Set. (2) Do not leave a broken LCD Set on for a long time. To prevent any further damages, after check the broken Set’s condition, make sure to turn the power (AC) off.

  • Page 4: Product Specification

    All manuals and user guides at all-guides.com 2. Product Specification 2-1.PRODUCT SPECIFCATION Features DLT-46U1UMB DLT-42U1GMB DLT-46U1STB DLT-42G1LTBD Screen Size 46” 42” 46” 42” Aspect Ratio 16 : 9 16 : 9 16 : 9 16 : 9 Resolution 1920 x 1080...

  • Page 5: 2-2.Available Input Signal

    All manuals and user guides at all-guides.com Product Specification 2-2.Available Input Signal 2-2-1.DLT-46U1UMB, DLT-42U1GMB Resolution V-freg HDMI PC(D-Sub) Component Standard 60Hz 640 x 480 75Hz VESA Standard 60Hz VESA Standard 800 x 600 75Hz 60Hz VESA Standard 1024 x 768...
  • Page 6 All manuals and user guides at all-guides.com Product Specification 2-2-2.DLT-46U1STB, DLT-42G1LTBD Resolution V-freg HDMI PC(D-Sub) Component Standard 60Hz 640 x 480 72Hz VESA Standard 75Hz 60Hz VESA Standard 800 x 600 VESA Standard 72Hz 75Hz 60Hz VESA Standard 1024 x 768 70Hz VESA Standard 75Hz...
  • Page 7 All manuals and user guides at all-guides.com Product Specification 2-2-3.Available PIP Mode AV 3/ Main/Sub HDMI 1 HDMI 2 AV 1 AV 2 S-Video AV 1 AV 2 AV 3/ S-Video HDMI 1 HDMI 1...

  • Page 8: Block Diagram

    All manuals and user guides at all-guides.com 3. Block Diagram 3-1.Signal Block Diagram...

  • Page 9: 3-2.Power Tree

    All manuals and user guides at all-guides.com Block Diagram 3-2.Power Tree...

  • Page 10: Service Mode

    All manuals and user guides at all-guides.com 4. SERVICE MODE Using the Service Remote controller, you can enter service mode directly. SERVICE REMOCON : R-34SVC(S/N:48B3034SVC) 4-1.EEPROM initial DATA Function Name Details Default Adjustment Heat Run Mode Gumi channel map write Volume Test Volume 0->32->63->L->R 1.Connect jumper(I2C)
  • Page 11 All manuals and user guides at all-guides.com SERVICE MODE Video sub bri Video sub Cb Video sub Cr Video sub hue Video sub cont Video YC delay Pedestal level Anti alias PIP Brightness PIP Contrast Y/G Clamp Device control 1 Pb Clamp Pr Clamp Y/G Gain...

  • Page 12: 4-2.Description Of Service Mode Item

    All manuals and user guides at all-guides.com SERVICE MODE Main : Analog upgrade Software Upgrade DVB-T : DVB-T upgrade I2C Stop For debugging mode Shipping 4-2. Description of SERVICE MODE ITEM A. S1(1): Heat-Run Key B. S2(2): Gumi Channel Map Write C.

  • Page 13: Trouble Shooting

    All manuals and user guides at all-guides.com 5. Trouble Shooting 5-1. No signal : OSD is working but on images are displaying -13-...
  • Page 14 All manuals and user guides at all-guides.com Trouble Shooting A. When “No signal” in RF, SCART1,SCART2,AV3 1) First check if other inputs are working =>If other inputs are not working, replace MAIN PCB 2) Checking waveforms with Color Bar Pattern (Using the oscilloscope) -Main TP (RF): CC613 near IC601 (Top) -Main TP(SCART1): LC019 near JP208 (Top) -Main TP(SCART2): LC213 near JP207 (Top)
  • Page 15 All manuals and user guides at all-guides.com Trouble Shooting C signal (RC050) C. When “No Signal” in Y/Pb/Pr signal (Component) 1) First check if other inputs are working =>If other inputs are not working, replace MAIN PCB 2) Checking waveforms with Color Bar Pattern (Using the oscilloscope) -Main TP (COMP_Y): RC233 near JP211 (Top) -Main TP (COMP_Pb): RC234 near JP211 (Top) -Main TP (COMP1_Pr): RC235 near JP211 (Top)
  • Page 16 All manuals and user guides at all-guides.com Trouble Shooting Pb signal (RC234) Pr Signal (RC235) D. When “No Signal” in PC 1) First check if other inputs are working =>If other inputs are not working, replace MAIN PCB 2) Checking waveforms with Color Bar Pattern (Using the oscilloscope) -Main TP(R signal): RC629 near IC601(Top) -Main TP(G signal): RC627 near IC601 (Top) -Main TP(B signal): RC628 near IC601 (Top)
  • Page 17 All manuals and user guides at all-guides.com Trouble Shooting 1024 X 768, 60Hz R signal (RC629 near IC601) G Signal (RC627 near IC601) -17-...
  • Page 18 All manuals and user guides at all-guides.com Trouble Shooting B Signal (RC628 near IC601) Horizontal sync (RC630 near IC601) Vertical sync (RC640 near IC601) -18-...
  • Page 19 All manuals and user guides at all-guides.com Trouble Shooting E.When “No Signal” in HDMI 1) First check if other inputs are working =>If other inputs are not working, replace MAIN 2) Checking waveforms with Color Bar Pattern (Using the oscilloscope) -Main TP (RC672, RC671, RC670, RC668, RC667, RC666, RC665) near IC601 =>...

  • Page 20: 5-2.When No Sond

    All manuals and user guides at all-guides.com Trouble Shooting 5-2. When No Sound Check Start 1.Confirm AC connection Does Screen appear? 2.Confirm Power S/W ON 3.Check Video or other PCBs Is the Sound input Jack Check the connection of ja correctly connected? Is the Speaker Check the connection of S...

  • Page 21: 5-4.Facts You Must Know When Trouble Diagnosing Or Repairing

    All manuals and user guides at all-guides.com Trouble Shooting 5-4. Facts you must know when trouble diagnosing or repairing. A. Trouble diagnosing and repairing of set mean find out which PCBs or blocks are not working and replace them with new PCBs. Repairing the broken PCBs are not necessary.

  • Page 22: Schematic

    All manuals and user guides at all-guides.com 6. Schematic Diagram -22-...
  • Page 23 All manuals and user guides at all-guides.com Circuit Diagram -23-...
  • Page 24 All manuals and user guides at all-guides.com Circuit Diagram -24-...
  • Page 25 All manuals and user guides at all-guides.com Circuit Diagram -25-...
  • Page 26 All manuals and user guides at all-guides.com Circuit Diagram -26-...
  • Page 27 All manuals and user guides at all-guides.com Circuit Diagram -27-...
  • Page 28 All manuals and user guides at all-guides.com Circuit Diagram -28-...
  • Page 29 All manuals and user guides at all-guides.com Circuit Diagram -29-...
  • Page 30 All manuals and user guides at all-guides.com Circuit Diagram -30-...
  • Page 31 All manuals and user guides at all-guides.com Circuit Diagram -31-...
  • Page 32 All manuals and user guides at all-guides.com Circuit Diagram -32-...
  • Page 33 All manuals and user guides at all-guides.com Circuit Diagram -33-...

  • Page 34: Printed Circuit Board

    All manuals and user guides at all-guides.com 7. Printed Circuit Board TOP PCB BOTTOM PCB -34-...

  • Page 35: Mechanical Exploded Diagram

    All manuals and user guides at all-guides.com 8. Mechanical Exploded Diagram DLT-42G1 -35-...
  • Page 36 All manuals and user guides at all-guides.com Exploded View DLT-42U1 -36-...
  • Page 37 All manuals and user guides at all-guides.com Exploded View DLT-46U1 -37-...

  • Page 38: Part List

    All manuals and user guides at all-guides.com 9. Service part list DLT-42G1LTBD PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CE402 HCELH100MC C CHIP ELECTRO 25V 10MF CM 4052 parts_code parts_name parts_desc 4850Q01210 BATTERY LR03 AAA ALKALINE CE403 HCELH100MC C CHIP ELECTRO 25V 10MF CM 4052...
  • Page 39 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION M382B 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR RC22 HRFT332JBA R CHIP 1/10 3.3K OHM J 1608 M383 4853832800 FRAME SUB STAND RC23...
  • Page 40 PTBCSHG336 COVER BACK AS DLT-42G1LTBD ZZ130 PTPKCPG265 PACKING AS DLT-42U1GMR ZZ130 PTPKCPG336 PACKING AS DLT-42G1LTBD ZZ140 PTCACAG329 CABINET AS DLT-42U1GMB ZZ140 PTCACAG336 CABINET AS DLT-42G1LTBD ZZ200 PTFMSJG265 MASK FRONT AS DLT-42U1GMR ZZ200 PTMPJRG265 PCB MAIN RADIAL AS DLT-42U1GMR ZZ200 PTMPJ0G265...
  • Page 41 All manuals and user guides at all-guides.com DLT-42U1GMB PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION ZZ100 48B5454H09 TRANSMITTER REMOCON R-54H09(AAA) CE067 CEXF1H331V C ELECTRO 50V RSS 330MF (10X20) TP ZZ110 PTACPWG265 ACCESSORY AS DLT-42U1GMR CE224 CEXF1H471V C ELECTRO...
  • Page 42 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CC124 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC2A3 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC125 HCBK104KBA C CHIP CERA...
  • Page 43 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CC511 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC736 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 CC512 HCBK103KBA C CHIP CERA...
  • Page 44 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION LC229 HFF300B01A F CHIP FERRITE BEAD 30 OHM UPB 1608 RC189 HRFT224JBA R CHIP 1/10 220K OHM J 1608 LC230 HFF300B01A F CHIP FERRITE BEAD 30 OHM UPB 1608...
  • Page 45 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION RC361 HRFT000JBA R CHIP 1/10 0 OHM J 1608 RC692 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 RC362 HRFT000JBA R CHIP 1/10 0 OHM J 1608...
  • Page 46 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CE202 CEXF1H100A C ELECTRO 50V RSM 10MF (5X7) TP ZZ200 PTMPJ1G265 PCB MAIN CHIP A AS DLT-42U1GMR CE203 CEXF1H220A C ELECTRO 50V RSM 22MF (6.3X7) 2193220010 SOLDER CREAM(PB-FREE)
  • Page 47 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CC2A9 HCBH224KBA C CHIP CERA 25V X7R 0.22MF K 1608 CE402 HCELH100MC C CHIP ELECTRO 25V 10MF CM 4052 CC2B0 HCBH224KBA C CHIP CERA 25V X7R 0.22MF K 1608...
  • Page 48 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION DZ033 DUMZ8R2T-B DIODE CHIP ZENER UMZ-8.2T (TAPING) LC006 HFFH1M501B F CHIP FERRITE BEAD HH-1M3216-501J DZ034 DUMZ8R2T-B DIODE CHIP ZENER UMZ-8.2T (TAPING) LC007 HFFH1M501B F CHIP FERRITE BEAD...
  • Page 49 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION LCA15 HFEACM201A F CHIP EMI 90 OHM ACM 2012 RA614 HRTS8E101J R CHIP ARRAY 1/16 8P 100 OHM 3216 LCA16 HFEACM201A F CHIP EMI 90 OHM ACM 2012...
  • Page 50 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION RC104 HRFT330JBA R CHIP 1/10 33 OHM J 1608 RC252 HRFT101JBA R CHIP 1/10 100 OHM J 1608 RC113 HRFT000JBA R CHIP 1/10 0 OHM J 1608 RC253...
  • Page 51 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION RC349 HRFT332JBA R CHIP 1/10 3.3K OHM J 1608 RC613 HRFT000JBA R CHIP 1/10 0 OHM J 1608 RC350 HRFT332JBA R CHIP 1/10 3.3K OHM J 1608 RC614...
  • Page 52 All manuals and user guides at all-guides.com Service part list PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION RC822 HRFT101JBA R CHIP 1/10 100 OHM J 1608 ZZ310 PTUNSWG265 PCB UNION AS DLT-42U1GMR RC826 HRFT101JBA R CHIP 1/10 100 OHM J 1608 IC290 1R24FH1B—...
  • Page 53 All manuals and user guides at all-guides.com Service part list DLT-46U1STB PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION CC401 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 M231A 7178301052 SCREW TAPPTITE TT2 WAS 3X10 MFZN BK 3CR CC402 HCBK104KBA C CHIP CERA...
  • Page 54 PTBCSHG337 COVER BACK AS DLT-46U1STB ZZ130 PTPKCPG265 PACKING AS DLT-42U1GMR ZZ130 PTPKCPG337 PACKING AS DLT-46U1STB ZZ140 PTCACAG329 CABINET AS DLT-42U1GMB ZZ140 PTCACAG337 CABINET AS DLT-46U1STB ZZ200 PTFMSJG265 MASK FRONT AS DLT-42U1GMR ZZ200 PTMPJRG265 PCB MAIN RADIAL AS DLT-42U1GMR ZZ200 PTMPJ0G265...
  • Page 55 PTBCSHG337 COVER BACK AS DLT-46U1STB ZZ130 PTPKCPG265 PACKING AS DLT-42U1GMR ZZ130 PTPKCPG337 PACKING AS DLT-46U1STB ZZ140 PTCACAG329 CABINET AS DLT-42U1GMB ZZ140 PTCACAG330 CABINET AS DLT-46U1UMB ZZ200 PTFMSJG265 MASK FRONT AS DLT-42U1GMR ZZ200 PTMPJRG265 PCB MAIN RADIAL AS DLT-42U1GMR ZZ200 PTMPJ0G265...

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