Daewoo DLT-19L1T Service Manual

Service Manual20" LCD CHASSIS :Model : S/M NO. : DSL140TEF0 SL-140TDLT-20W2Jul. 2007

Schematic Diagram-10-

Schematic Diagram-11-

Schematic Diagram-12-

Schematic Diagram-13-

-14-Schematic Diagram

-15-Schematic Diagram

6. PCB Data-16-TOP

PCB Data-17-BOTTOM

-18-7. Trouble Shooting* Facts you must know at trouble diagnosis or repairing(1) The trouble diagnosis and repairing of set means Module .In other wo

-19-Trouble Shooting7-1. When LED doesn’t lit.Is the AC power cordcorrectly connected?Is power S/W ON?Is output voltage ofPower module correct?(or LIP

ContentsI. Parts with the exception of MODULE1. Safety Precaution………………………………………………………………………………… 32. Product Specification ………………………………………………………………………

-20-Trouble Shooting7-2. When TV doesn’t turn on in red LED.Does TV turn onpushing the CH key?Check the power connection.Exchange the Power module.Con

-21-Trouble Shooting7-4. When “No picture” in TV mode.Does raster appear?Does LED turn on in GREEN?Does auto - tuningFunction operatenormally?Go to ch

-22-Trouble Shooting7-5. When “No picture” in External input mode.Does OSD menuScreen appear?Check the main PCBand sub - JACK PCBCheck startYNYIs this

-23-Trouble Shooting7-6. When No Sound in External input mode.Does Screen appear?Go to 7 - 5Exchange speaker or speak cableCheck startYNYIs the sound

-24-Trouble Shooting7-7. When Key does not operate.Does remoteController operate?Check the I501Check Key cable and I501Check startYNYIs 2th PIN of P50

-25-Trouble Shooting7-8. When Remote Controller does not operate.Does input of key operate?Does remoteController operate?Whenever push the button ofRe

-26-8. Service part listZZ110 PTACPWG140U ACCESSORY DLT-20W2AMBSC 00010 4850Q00910 BATTERY

-27-Service part listC331 HCQK101JBA C CHIP CERA 50V CH 100PF J 1608C332 HCQK101JBA C CHIP CERA 50V CH 100PF J 1608C333 HCBK104KBA C CHIP CERA 50V X7R

-28-Service part listCC15 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608CC16 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608CC18 HCBK104KBA C CHIP CERA 50V X

-29-Service part listR506 HRFT103JBA R CHIP 1/10 10K OHM J 1608R525 HRFT101JBA R CHIP 1/10 100 OHM J 1608R526 HRFT101JBA R CHIP 1/10 100 OHM J 1608R52

-3-1. Safety Precautions(1) When moving or laying down a LCD Set, at least two people must work together. Avoid anyimpact towards the LCD Set.(2) Do n

-30-Service part listRC23 HRFT152JBA R CHIP 1/10 1.5K OHM J 1608RC24 HRFT333JBA R CHIP 1/10 33K OHM J 1608RC25 HRFT102JBA R CHIP 1/10 1K OHM J 1608RC2

-31-9-1. IPB-6024W02(The powe module for DLP-20W2)Input Requirements.Input Voltage Range Voltage Range:AC180V to 270V Normal Voltage:AC 240VFrequency

-32-10. Inverter10-1. Feature- Drive 6 lamps with one module- Norminal current 6.5mArms for each lamp- 21.6~26.4V input voltage operation- Automatical

-33-Inverter10-4. Troubleshooting*Backlight doesn’t turn onIs voltage of pin#2 of P502 under 3.0V?Is P502 correctlyconnected?Check the connection of L

-34-11. Out LineDLT-20W2

12. Exploded View-35-DLT-20W2

SOFTWARE INSTALL &UPGRADE

-2-1. Software upgrade requires: Service remocon R-30SVC7, Single master, Jig EURO Scart,Euro cable, AC adapter. a) Please connect Single Master to PC

SOFTWARE INSTALL & UPGRADE-3-2. Please install software Daewoo Flashing (DF1_2Setup.exe).After install please restart computer.

SOFTWARE INSTALL & UPGRADE-4-4. Please choose IC type (for LCD TV - N1F 256 AV FULL STEREO).3. After install Daewoo Flashing Tool please run “Daew

SOFTWARE INSTALL & UPGRADE-5-5. Please choose Flash Memory (UOC).6. Please choose Interface (Single Master).

SOFTWARE INSTALL & UPGRADE-6-7. Please choose port (LPT1)8. Please open HEX FILE

SOFTWARE INSTALL & UPGRADE-7-9. Please choose software version (depending on LCD Panel – for LCD TV 20" panel makers are AUO and LG Philips,

SOFTWARE INSTALL & UPGRADE-8-10. Please ON LCD TV and press SVC button on Service remocon and next pressSCREEN button to make UOC OFF.Software ver

SOFTWARE INSTALL & UPGRADE-9-13. After finish please disconect Euro Cable from LCD TV and OFF /ON LCD TV.Software will change registers after ON.A

DAEWOO ELECTRONICS CORP.PRINTED DATE : Jul. 2007686, AHYEON-DONG, MAPO-GU,SEOUL, KOREA.C.P.O. BOX 8003 SEOUL KOREA

-5-3. Block DiagramTunerTD1318IF Filter (SAW)[K3953M][K9650M]LOC-II<Front End>LOC-II<Back End>SCARTDigital BlockAV2COMPDSUBHDMIKEYCircuitR

-6-Block DiagramCI ControlICD30CIMAXCI SLOTPI01MPEGPNX8314SDRAMK4S281632DFlashMemoryM29W320Latch74LVC573BUSTransceiver74LVC245EEPROMM24C64ADCUDA1334BT

-7-Block DiagramPOWERMODULEINVERTERI804AP1117EA33AS/B 3.3VSW8MAIN SWI803IRF7316Channel #19V SwitchingChannel #25V SwitchingI851APW11729V 3.3VI806 (LM

4. Schematic Diagram-8-

-9-Schematic Diagram