Daewoo DLP-20J1 Service Manual
  1. Manuals
  2. Brands
  3. Daewoo Manuals
  4. LCD TV
  5. DLP-20J1
  6. Service manual

Daewoo DLP-20J1 Service Manual

20" lcd tv
Hide thumbs Also See for DLP-20J1:
Table of Contents

Advertisement

Quick Links

See also: Instruction Manual

Service Manual

20" LCD TV
CHASSIS :
Model :
DLP-20J1
DLP-20D7
DLP-20W2
Caution
: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center.
S/M NO. : DSL130PEF0
SL-130P
SEP. 2006

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DLP-20J1 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Daewoo DLP-20J1

Summary of Contents for Daewoo DLP-20J1

  • Page 1: Service Manual

    S/M NO. : DSL130PEF0 Service Manual 20" LCD TV CHASSIS : SL-130P Model : DLP-20J1 DLP-20D7 DLP-20W2 Caution : In this Manual, some parts can be changed for improving. their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List)in Service Information Center.

  • Page 2: Table Of Contents

    4. Description of video circuit 5. Schematic Diagram 6. PCB Data 7. Trouble Shooting 8. Service Part List 8-1 Service Part List 8-2 Difference List of SL-130P 9. Power 10. Inverter 11. Exploded View 11-1 DLP-20J1 11-2 DLP-20D7 11-3 DLP-20W2 SOFTWARE INSTALL & UPGRADE...

  • Page 3: Safety Precaution

    1. Safety Precautions (1) When moving or laying down a LCD Set, at least two people must work together. 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 checking the condition of the broken Set, make sure to turn the power (AC) off.

  • Page 4: Product Specification

    2. Product Specification...

  • Page 5: Block Diagram

    3. Block Diagram...
  • Page 6 Block Diagram DLP-20J1/D7(Main part)
  • Page 7 Block Diagram DLP-20J1/D7(Power part)
  • Page 8 Block Diagram DLP-20W2(Main part)
  • Page 9 Block Diagram DLP-20W2(Power part)

  • Page 10: Description Of Video Circuit

    4.Description of Video Circuit SL-130P video circuit: Process input signals <Analog-TV signal,CVBS(NTSC),Y/C Signal> to produce Output signal for LCD panel.(J1/D7 : 640 x 480 , W2 : 1366 x 768) Introduction for main IC 4-1 I501(TDA15521E) The LCD One Chip 1(LOC 1)series combines the functionsof a Video Signal Processor(VSP) together with aFLASH embedded main microcontroller(doing TEXT and TV control)and an LCD panel controller.In addition the following functions are available:...

  • Page 11: Schematic Diagram

    5. Schematic Diagram -11-...
  • Page 12 Schematic Diagram -12-...
  • Page 13 Schematic Diagram -13-...
  • Page 14 Schematic Diagram -14-...
  • Page 15 Schematic Diagram -15-...
  • Page 16 Schematic Diagram -16-...
  • Page 17 Schematic Diagram -17-...

  • Page 18: Pcb Data

    6. PCB Data -18-...
  • Page 19 PCB Data BOTTOM -19-...

  • Page 20: Trouble Shooting

    (2) This TROUBLE SHOOTING list only contains representative and simple PCB trouble diagnosis and Module Exchange method. Therefore, if you find Sets which are difficult to diagnose or to repair, contact Daewoo Electronics. (3) Basic TROUBLE SHOOTING procedure : Check Trouble Symptoms...
  • Page 21 Trouble Shooting 7-1. When LED doesn’t lit. Check start Confirm power cord Is the AC power cord connection. correctly connected? Is power S/W ON? Confirm Power S/W ON. Is output voltage of Check the power connection. Power module correct? Exchange the power module. (or LIPS) Check the Main PCB.
  • Page 22 Trouble Shooting 7-2. When TV doesn’t turn on in red LED. Check start Is output voltage of Does TV turn on Check the power connection. Power module correct? Exchange the Power module. pushing the CH key? (or LIPS) Check the connection to IR PCB. Confirm Power S/W ON.
  • Page 23 Trouble Shooting 7-4. When “No picture” in TV mode. Check start Does LED turn on in GREEN? Go to chap 7 - 2 Confirm AC connection. Confirm Power SW ON. Is this weak discharge Does raster appear? Check the power, On the screen? Inverter and panel Does auto - tuning...
  • Page 24 Trouble Shooting 7-5. When “No picture” in External input mode. Check start Confirm AC connection. Confirm Power SW ON. Does OSD menu Is this weak discharge Check the power, Screen appear? On the screen? Inverter and panel Go to 7 - 4 Check the Is the signal jack Connection of Jack...
  • Page 25 Trouble Shooting 7-6. When No Sound in External input mode. Check start Go to 7 - 5 Does Screen appear? Check the Is the sound input jack Connection of sound Jack Correctly connected? Check the Is the speaker jack Connection of speaker Correctly connected? Check the AUDIO AMP(I601) Is the I601 output...
  • Page 26 Trouble Shooting 7-7. When Key does not operate. Check start Does remote Check the I501 Controller operate? Is 2th PIN of P504A Exchange Key PCB Correctly operate? Check Key cable and I501 -26-...

  • Page 27: When Remote Controller Does Not Operate

    Trouble Shooting 7-8. When Remote Controller does not operate. Check start Does input of key operate? Check the I501 Does remote Check the battery of Controller operate? remote controller Whenever push the button of Remote controller, does the 2 nd pin Exchange the Key PCB Of P501A output normal? Check IR cable and I501...

  • Page 28: Service Part List

    PAXBF01DA (PAL) ZZ140 PTCACAG177 CABINET AS DLP-20J1LHS U100 4859728430 TUNER VARACTOR UV1316/A I H-4 M1F1 4851F02200 STAND AS DLP-20J1/J3 X201 5XJ24R576E CRYSTAL QUARTZ HC-49/S 24.576MHZ 30PPM M1F1A 7172401652 SCREW TAPPTITE TT2 TRS 4X16 MFZN BK 3CR X501 5XJ24R576E CRYSTAL QUARTZ HC-49/S 24.576MHZ 30PPM...
  • Page 29 Service part list PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK C552 HCBH224KBA C CHIP CERA 25V X7R 0.22MF K 1608 R290 HRFT332JBA R CHIP 1/10 3.3K OHM J 1608 C555 HCBK102KBA C CHIP CERA 50V X7R 1000PF K 1608 R291 HRFT332JBA R CHIP...
  • Page 30 Service part list PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK R843 HRFT332JBA R CHIP 1/10 3.3K OHM J 1608 C545 CEXF1H229A C ELECTRO 50V RSM 2.2MF (4X7) TP R844 HRFT123JBA R CHIP 1/10 12K OHM J 1608 C547 CEXF1C100A C ELECTRO...
  • Page 31 Service part list PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK D102 DBA282---- DIODE BA282 C530 HCQK101JBA C CHIP CERA 50V CH 100PF J 1608 D602 D1N4148--- DIODE 1N4148 (TAPPING) C531 HCBK103KBA C CHIP CERA 50V X7R 0.01MF K 1608 DA28 85801060GY WIRE COPPER...
  • Page 32 Service part list PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK I816 1LM317BD2E IC CHIP REGULATOR LM317BD2T ADJ 1.2V 37V 1.5A D2PAK R509 HRFT101JBA R CHIP 1/10 100 OHM J 1608 I820 TFDS4953-C FET CHIP FDS4953 SO-8 -30V -5A REEL R514 HRFT101JBA R CHIP...
  • Page 33 Service part list PART CODE PART NAME DESCRIPTION REMARK R931 HRFT101JBA R CHIP 1/10 100 OHM J 1608 R932 HRFT101JBA R CHIP 1/10 100 OHM J 1608 R933 HRFT101JBA R CHIP 1/10 100 OHM J 1608 R934 HRFT101JBA R CHIP 1/10 100 OHM J 1608 RA05 HRFT472JBA...

  • Page 34: Difference List Of Sl-130P

    Service part list 8-2. Difference List of SL-130P parts_name 20J1BHS 20J1LHS 20D7BHBS 20D7LHBS 20W2AHBS parts_desc D101 DIODE D1N4148--- D1N4148--- DBAT85---- DBAT85---- DBAT85---- MAIN AXIAL AS LA451 COIL PEAKING 5CPZ100K02 5CPZ100K02 5CPZ100K02 5CPZ100K02 MAIN AXIAL AS LA461 COIL PEAKING 5CPZ100K02 5CPZ100K02 5CPZ100K02 5CPZ100K02 MAIN AXIAL AS...
  • Page 35 Service part list parts_name 20J1BHS 20J1LHS 20D7BHBS 20D7LHBS 20W2AHBS parts_desc LED2 DSPR39MVW- DSPR39MVW- DSPR39MVW- MAIN MANUAL P501B CONN WAFER 4859236220 4859236220 4859236220 MAIN MANUAL IC12 IC PREAMP 1TSOP34838 1TSOP34838 MAIN MANUAL LED1 DSPR39MVW- DSPR39MVW- MAIN MANUAL P501A CONN WAFER 4859236220 4859236220 MAIN MANUAL PA041...

  • Page 36: Power

    9. Power 9-1. PB-6024W02(The power module for DLP-20W2) Input Requirements. Input Voltage Range Voltage Range:AC180V to 270V Normal Voltage:AC 240V Frequency Range Frequency Range:47 To 63Hz Normal Frequency:50 To 60Hz Input Current 0.35 Arms at 240 Vac input Inrush Current 240V 30A peak Earth Leakage Current 3.5mA MAX(250AC)
  • Page 37 Power 9-2. IPB-6015N01/02( LIPS for DLP-20J1/D7) Input Requirements. Input Voltage Range Voltage Range:AC180V to 270V Normal Voltage:AC 240V Frequency Range Frequency Range:47 To 63Hz Normal Frequency:50 To 60Hz Input Current 0.35 Arms at 240 Vac input Inrush Current 240V 30A peak Earth Leakage Current 3.5mA MAX(250AC)

  • Page 38: Inverter

    10. Inverter 10-1. Feature - Drive 6 lamps with one module - Norminal current 6.5mArms for each lamp - 21.6~26.4V input voltage operation - Automatically balancing of lamp current - Long lamp life with soft start - Protection against lamp open or failure - Built-in fuse - Low EMI and spurious noise 10-2.

  • Page 39: Troubleshooting

    Inverter 10-4. Troubleshooting *Backlight doesn’t turn on Check start Check Power. Is voltage of pin#1~5 of CN1 24V? Is voltage of pin#12 Check Main PCB. of CN1 under 3.0V? Exchange Inverter or panel. -39-...

  • Page 40: Exploded View

    11. Exploded View DLP-20J1 -40-...

  • Page 41: Dlp-20D7

    Exploded View DLP-20D7 -41-...

  • Page 42: Dlp-20W2

    Exploded View DLP-20W2 -42-...

  • Page 43: Software Install & Upgrade

    SOFTWARE INSTALL & UPGRADE...
  • Page 44 SOFTWARE INSTALL & UPGRADE 1. Software upgrade requires: Service remocon R-30SVC7, Single master, Jig EURO Scart, Euro cable, AC adapter. a) Please connect Single Master to PC port LPT1. Jig Euro Scart SINGLE MASTER 12V (from AC ADAPTER) EURO CABLE...
  • Page 45 SOFTWARE INSTALL & UPGRADE 2. Please install software Daewoo Flashing (DF1_2Setup.exe). After install please restart computer.
  • Page 46 SOFTWARE INSTALL & UPGRADE 3. After install Daewoo Flashing Tool please run “Daewoo Flashing 1.2” 4. Please choose IC type (for LCD TV - N1F 256 AV FULL STEREO).
  • Page 47 SOFTWARE INSTALL & UPGRADE 5. Please choose Flash Memory (UOC). 6. Please choose Interface (Single Master).
  • Page 48 SOFTWARE INSTALL & UPGRADE 7. Please choose port (LPT1) 8. Please open HEX FILE...
  • Page 49 SOFTWARE INSTALL & UPGRADE 9. Please choose software version (depending on LCD Panel – for LCD TV 20" panel makers are AUO and LG Philips, for 17" LCD TV we use only one type of panel LG Philips). 20" AUO Panel 20"...
  • Page 50 10. Please ON LCD TV and press SVC button on Service remocon and next press SCREEN button to make UOC OFF. Software version 11. Please connect EURO CABLE to LCD TV and to JIG EURO SCART. Please supply 12V for JIG EURO SCART. 12. Please press Flash button. Daewoo Flashing automatically upgrade new software.
  • Page 51 In next step press SEARCH UP button about 2 sec. After this on the OSD should appear “DCXOALIGNEMENT” information. This means that DCXO alignment starts and when procedure is finished value should appear (correct value should be below 255). Date 13-04-2006 Daewoo Electronics ENG DEPT.

This manual is also suitable for:

Dlp-20d7Dlp-20w2

Table of Contents