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Daewoo DLX-20J1BHS, Service Manual, Page: 1 / 48

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 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.

Service Manual

20" LCD TV

CHASSIS :

Model : 

S/M NO. : DSL130XEF0 

SL-130X

DLX-20J1BHS

OCT. 2006

Summary of Contents for DLX-20J1BHS

Page 1: ...mproving 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 Service Manual 20 LCD TV CHASSIS Model S M NO DSL130XEF0 SL 130X DLX 20J1BHS OCT 2006 ...

Page 2: ... Product Specification 4 3 Block Diagram 5 4 Description of video circuit 8 5 Schematic Diagram 9 6 PCB Data 15 7 Trouble Shooting 17 8 Service Part List 25 8 1 Service Part List 25 9 Power 30 10 Inverter 31 11 Exploded View 33 11 1 DLX 20J1 33 SOFTWARE INSTALL UPGRADE 2 ...

Page 3: ...crews holding PCBs are working as electric circuit grounding make sure to check if any screw is missing when assembling reassembling Do not leave any screws inside the set 5 A LCD Set contains different kinds of connector cables When connecting or disconnecting cables check the direction and position of the cable beforehand 6 Connect disconnect the connectors slowly with care especially FFC film c...

Page 4: ... 4 2 Product Specification ...

Page 5: ... 5 3 Block Diagram ...

Page 6: ... 8 7 5 4 3 2 1 6 I820 IRF7316 20 AUO PANEL I801 IRF7316 I801 IRF7316 I851 APW1172 I809 AP1117E18 I803 AP1117E33 I401 LA42032 I501 LOC 1 TDA15501E I502 24LC32A I820 IRF7316 I820 IRF7316 I816 LM317 ADJ 12V I852 KIA78L08F 8V I503 SST39VF 020 I508 DTC34LF 86 20 LG PANEL U100 RF TUNER U100 RF TUNER I405 PI5V330 I504 TDA9178T I807 BA6161 LG PANEL OPTION ...

Page 7: ... 7 Block Diagram ...

Page 8: ...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 Adaptive digital 4H 2H PAL NTSC comb filter Teletext decoder with 10 page text memory Multi standard stereo decoder Microconroller 80C51 microcontroller core standard instruction set and timing 256k x 8bit program RO...

Page 9: ...5 Schematic Diagram 9 ...

Page 10: ...Schematic Diagram 10 ...

Page 11: ...Schematic Diagram 11 ...

Page 12: ...Schematic Diagram 12 ...

Page 13: ...Schematic Diagram 13 ...

Page 14: ...Schematic Diagram 14 ...

Page 15: ...6 PCB Data 15 TOP ...

Page 16: ...PCB Data 16 BOTTOM ...

Page 17: ...tion Check Repair Complete 4 Required equipments for trouble diagnosis Digital Multi meter measure Dc voltage measure Diode Voltage Short Open test Screwdriver or electric screwdriver plastic adjusting tool 5 Before assemble disassemble PCBs check to see if AC Switch is OFF 6 After Back cover is closed redo Heat run for at least one hour by inputting Full white pattern Symptoms of LIPS power inver...

Page 18: ...he AC power cord correctly connected Is power S W ON Is output voltage of Power module correct or LIPS Confirm power cord connection Confirm Power S W ON Check the power connection Exchange the power module Check start Y N N N Y Y Y Check the Main PCB ...

Page 19: ... Power S W ON Check the connection to IR PCB Check the operation of Remote Controller Check start Y N N Y Is output voltage of Power module correct or LIPS Y 7 3 When white screen Is R751 J301 BOE AUO R752 J302 are normal Check the Main PCB Check start Y N Y Is P902 TTL correctly connected Check the connection Of Panel N Y Check the connector or Main PCB ...

Page 20: ... 2 Check start Y N N N Y Y Y Tune the channel Check the tuner Is this weak discharge On the screen Is input of YUV normal I501 A15 B14 B15 Is input of RGB normal R203 R207 R211 Confirm AC connection Confirm Power SW ON Check the power Inverter and panel Check I504 Check RA80 81 82 N N N Check I402 N Y Y Y Is input of sync normal I501 Y1 Y2 Y Check I501 ...

Page 21: ...B Check start Y N Y Is this weak discharge On the screen Confirm AC connection Confirm Power SW ON Check the power Inverter and panel N Go to 7 4 Y Is the signal jack Correctly connected Check the Connection of Jack N Y Does input source operate Operate AV device N Y Is input selection In used mode Confirm input selection N Y ...

Page 22: ...Go to 7 5 Exchange speaker or speak cable Check start Y N Y Is the sound input jack Correctly connected Check the Connection of sound Jack N Y Is the speaker jack Correctly connected Check the Connection of speaker N Y Is the I601 output Normal Check the AUDIO AMP I601 And I501 N Y ...

Page 23: ... 23 Trouble Shooting 7 7 When Key does not operate Does remote Controller operate Check the I501 Check Key cable and I501 Check start Y N Y Is 2th PIN of P504A Correctly operate Exchange Key PCB N Y ...

Page 24: ...Controller operate Whenever push the button of Remote controller does the 2nd pin Of P501A output normal Check the I501 Check the battery of remote controller Exchange the Key PCB Check start Y N N N Y Y Y Check IR cable and I501 Output of 2nd pin of P501A IR PCB for Remote Control EX Push PR DOWN button ...

Page 25: ... CERA 50V X7R 0 1MF K 1608 C258 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 C259 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 C260 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 C264 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 C276 HCQK221JBA C CHIP CERA 50V CH 220PF J 1608 C277 HCQK221JBA C CHIP CERA 50V CH 220PF J 1608 C502 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 C505 HCBH224KBA C CHIP CERA 25V ...

Page 26: ...00 OHM J 1608 R603 HRFT333JBA R CHIP 1 10 33K OHM J 1608 R604 HRFT223JBA R CHIP 1 10 22K OHM J 1608 LOC PARTCODE PARTNAME DESCRIPTION REMARK R605 HRFT242JBA R CHIP 1 10 2 4K OHM J 1608 R606 HRFT333JBA R CHIP 1 10 33K OHM J 1608 R607 HRFT103JBA R CHIP 1 10 10K OHM J 1608 R608 HRFT153JBA R CHIP 1 10 15K OHM J 1608 R609 HRFT222JBA R CHIP 1 10 2 2K OHM J 1608 R610 HRFT242JBA R CHIP 1 10 2 4K OHM J 160...

Page 27: ...92 PCB MAIN 234X189 C4V C201 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 C204 HCQK100JBA C CHIP CERA 50V CH 10PF J 1608 C208 HCQK100JBA C CHIP CERA 50V CH 10PF J 1608 C209 HCBK223KBA C CHIP CERA 50V X7R 0 022MF K 1608 C212 HCQK100JBA C CHIP CERA 50V CH 10PF J 1608 C221 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 C237 HCBK104KBA C CHIP CERA 50V X7R 0 1MF K 1608 C240 HCBK104KBA C CHIP CERA 50V X7R 0...

Page 28: ...MLF 2012 P902 4859297320 CONN WAFER 05002HR 50A01 G Q506 T2SC2412KB TR CHIP 2SC2412K T146 BR Q507 T2SC2412KB TR CHIP 2SC2412K T146 BR Q511 T2SA1037KB TR CHIP 2SA1037AKT146 R Q512 T2SC2412KB TR CHIP 2SC2412K T146 BR Q602 T2SA1037KB TR CHIP 2SA1037AKT146 R Q701 T2SC2412KB TR CHIP 2SC2412K T146 BR Q702 T2SC2412KB TR CHIP 2SC2412K T146 BR LOC PARTCODE PARTNAME DESCRIPTION REMARK Q802 T2SC2412KB TR CHI...

Page 29: ... J 1608 R845 HRFT100JBA R CHIP 1 10 10 OHM J 1608 R846 HRFT103JBA R CHIP 1 10 10K OHM J 1608 R880 HRFT362FBA R CHIP 1 10 3 6K OHM F 1608 R881 HRFT202FBA R CHIP 1 10 2K OHM F 1608 R885 HRFT512JBA R CHIP 1 10 5 1K OHM J 1608 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 RA02 ...

Page 30: ...MΩ at 500Vdc between primary Live Neutral line and secondary Input AC surge The power supply withstand 300Vrms input for 10 seconds Primary inlet F G to secondary GND 25A for 3second 80mΩ MAX Output Requirements Board Output Minimum Maximum Output Current Condition Voltage output voltage output voltage MIN NOR MAX 15Vdc 14 0Vdc 16 5Vdc 0A 2A 2A 9Vdc 7 75Vdc 9 8Vdc 0A 0 5A 1A 5Vdc 5 00Vdc 5 5Vdc 13...

Page 31: ...022WR 14 Yeonho or Equivalent CN1 1 5 VIN DC Input 24 0V CN1 6 10 GND Power supply return CN1 11 VBRT Bright adjust 0to 5 0V CN1 12 VSLEEP Lamp on Low Lamp off High CN1 13 External PWM pulse input for bright adjust CN1 14 Lamp status Lamp on Low Lamp off High Parameter Symbol Recommendation Units Min R C Max Input supply voltage VIN 21 6 24 0 26 4 V Full bright lamp current IO MAX 4 0 6 5 7 5 mArm...

Page 32: ...verter 10 4 Troubleshooting Backlight doesn t turn on Is voltage of pin 2 of P502 under 3 0V Is P502 correctly connected Check the connection of LIPS Check Main PCB Check start Y N N Y Y Change LIPS or Panel ...

Page 33: ...11 Exploded View 33 DLX 20J1 ...

Page 34: ...SOFTWARE INSTALL UPGRADE ...

Page 35: ... 2 SOFTWARE INSTALL UPGRADE 1 Software Upgrade TOOL Install 1 After insert the CD to CDROM open the folder 2 Install the WISP 3 3 Double click the WISP3 3 exe file ...

Page 36: ... 3 SOFTWARE INSTALL UPGRADE 3 Press Next 4 Enter user name and company name ...

Page 37: ... 4 SOFTWARE INSTALL UPGRADE 5 License agreement 6 Select the complete ...

Page 38: ... 5 SOFTWARE INSTALL UPGRADE 7 Press Next button 8 Select yes 9 Select yes ...

Page 39: ... 6 SOFTWARE INSTALL UPGRADE 10 Select OK 11 Select OK 12 Select I want to restart my computer now then press Finish ...

Page 40: ...SOFTWARE INSTALL UPGRADE 7 2 Software upgrade 1 Open the SVC cover for upgrading i Open the SVC cover ii Connect the correct cable for each software ...

Page 41: ...UOC upgrade i Connect the correct cable wire in P201 for UOC upgrading Real wire connection is the right side of P201 ii Connect jumper in P103 SCALER UOC P201 P103 iii Start WISP Select UOCIII NIF 256 Set the Define delay Time 2ms ...

Page 42: ...SOFTWARE INSTALL UPGRADE 9 iv IIC configuration setting Select SingleMaster Select 100Kbit s Select LPT1 Press OK ...

Page 43: ...SOFTWARE INSTALL UPGRADE 10 v Browse file Press Browse Select the target file Press Open vi Upgrade ...

Page 44: ...L UPGRADE 11 Start Auto Execute Finish 3 Scaler Sedna upgrade i Connect the correct cable wire in P201 for Scaler upgrading Real wire connection is the Left side of P201 ii Connect jumper in P103 SCALER UOC P201 P103 ...

Page 45: ...INSTALL UPGRADE 12 iii Start ISP Tool Find the ISP_TOOL icon as below Click and execute the Tool iv Configuration Setting Select SST ATMEL device Press Select Intel HEX File Select the target HEX file Press Open ...

Page 46: ...NSTALL UPGRADE 13 v Upgrade Check Auto reload Upgrade Erase Program Verify in sequence Finish 3 NVM Reset All EEPROM Data Reset 1 Purpose i All data RESET ii If you upgrade the UOC III part then must do NVM RESET ...

Page 47: ...SOFTWARE INSTALL UPGRADE 14 2 Process i Press S6 key in SVC remote controller ii Press Right direction key in SVC remote controller Then TV SET is turn off on automatically Finish ...

Page 48: ...Shipping condition ii If you upgrade the UOC III part then must do SHIPPING Reset 2 Process i Press S12 key in SVC remote controller ii Then you can see SHIPPING OK on the RF Mode Be sure to wait until display on the screen SHIPPING OK Then turn off the TV Set Finish ...

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