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LG L1933TR User's Manual

1. co Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes 25 Note Safety mark EXPLODED VIEW PARTS LIST Ref No Part No Description 010 A ABJ32220472 Cabinet Assembly L1753 17 SILVER best buy for L1733TR ABJ32229471 Cabinet Assembly L1953 19 SILVER L1933TR FOR BEST BUY 020 EAJ32188801 LCD Module TFT LM170E03 TLB3 DRIVER 17 0INCH 1280X1024 300CD COLOR 72 5 4 800 VS 1 5MS 160 160 4LAMP 2CH LVDS LG PHILIPS LCD EAJ32189001 LCD Module TFT LM190E08 TLB2 DRIVER 19 0INCH 1280X1024 300 0 COLOR 72 5 4 800 1 P7 FACTORY 5MS 160 160 2CH LVDS 4LAMP LG PHILIPS LCD EAJ35908201 LCD Module TFT LM190E08 TLB6 DRIVER 17 0INCH 1280X1024 300CD COLOR 72 4 3 800 1 P7 Lusem Lusem D IC 5ms LG PHILIPS LCD or EAJ32188901 LCD Module TFT LM190E08 TLB5 DRIVER 19INCH 1280X1024 30000 COLOR 72 5 4 800 1 FACTORY 5MS 2CH LVDS 160 160 4LAMP LG PHILIPS LCD _ 6304FHSO14B LCDModue TFT HSD190ME19 D10 700VS1 DRIVER 19INCH 1280X1024 300CD COLOR 72 43 700 HANNSTAR DISPLAY CORPORATION 030 3809900177 Cover Assembly L1752T NON BACK COVER ASSY MODULE LPL DUAL L1733TR 3809900178B Cover Assembly L1952T NON BACK COVER ASSY MODULE LPL DUAL L1933TR 38
2. HHE i i J3 5 aT ST oT g amp S 8 Sa 8 S S Re3t FEET I 1 1 VOVI cem lese cmi lee To aur opt ion READY Opt ion READY u203 M24COBWMNET LP L5 aT gon a 108 808 gt 55 E E ME a gt ME reis gt lt A ott css 2 gt S ae oa 1 s g xe w un 9 5911 2 4 s 5 Si SISSI gs Sla aca Lasso Quim 2 ERI iS SS dT 89 8 5 2 8 2 5 ODCL SCL BYPASS 0 17 2 ind 1 GND2 GND79 L At LVBOM voce qov GNOS GND76 J5 6 VDDP75 G LVB1M gt AVDD DVIB LVB1P gt vm Bt LVB2M VEG ve gt vec om GND 14 TSUMBGAWL 2 LVBCKP E CK LVB3M oym t al VDD DVI14 LVB3P Mes px seo REXT VDDC66 2 9 4 AVDD PLL LVAOM voma s 2 Regt 55 _ C290 047uF s BINOM LVAOP Nodo Lon 98 55 2040 0477 BINOP LVA1M SA i se 047 lt GINOM iu ES m 047uF GINOP LVA2M
3. o CHECK POWER BOARD SINE BING NO AND FIND OUT A SHORT PUE POINT AS OPENING EACH POWER LINE J403 PIN9 NO gt CHECK MICOM INV 5v ON OFF PORT 1 CONFIRM BRIGHTNESS J403 PIN10 NO OSD CONTRL STATE 5V gt 2 CHECK DIM ADJ PORT CHECK PULSE AS CONTACTING SCOPE PROBE TO CAUTION LABEL NO CONTACT PROBE TO gt LIPS CAUTION LABEL CAN YOU SEE PULSE AT YOUR SCOPE REPLACE CCFL LAMP IN THE LCD MODULE Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 19 LGE Internal Use Only 3 NO RASTER OSD IS NOT DISPLAYED MSTAR NO RASTER OSD IS NOT DISPLAYED AT MODE 12 TROUBLE IN CABLE OR LCD MODULE Waveforms U201 NO PIN 16 75 CHECK U301 3 3V pe U201 1 CHECK C210 C211 PIN96 97 NO gt _ SOLDERING CONDITION OSCILLATE AS 2 CHECK X201 14 31MHZ2 3 TROUBLE IN U201 U201 PIN27 IS 48KHz H SYNC NO CHECK CONNECTION 2 PIN28 IS 60Hz V SYNC gt LINE FROM D SUB TO IS PULSE APPEARED U201 AT SIGNAL PINS C1 Freq 48 472kHe 1 U201 96 97 2 U201 27 H SYNC Tek 25 005 5 ET 975 Aes Tek SIDER 5 00 5 5 144 Acqs r Zo l 1 WE ute 40 0ns 7 2 60 V i 200
4. Control Line X Power Select Switch amp Ol 110V 220V ER PE Power LED 7 ae E ST Switch Va E V Sync On Off Switch Switch must be ON Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes Figure 1 Cable Connection LGE Internal Use Onl 17 d TROUBLESHOOTING GUIDE 1 NO POWER NO POWER POWER INDICATOR OFF Check J403 Voltage Pin5 Pin6 5V Check NO Check Power Board And Find Out a Short Point as Opening Each Power Line U301 Pin2 Voltage 3 3V YES Check Key Control Connector Routine Check 3 3V Line Open Check No Problem Is U201 Pin75 3 3V NO Voltage Check U201 Pin 96 NO gt Check 3 3V Line Pulse res Check U201 Waveforms 1 U201 96 Tek 25 0 5 8 ET 975 F 1007 Ma ons Chi 7 2 60 V 5 2004 11 51 39 gt Check X TAL Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 18 LGE Internal Use Only 2 NO RASTER OSD IS NOT DISPLAYED LIPS NO RASTER OSD IS NOT DISPLAYED
5. and one 1 8V regulators to convert power which is provided 5V in Power board 12V is provided for inverter 5V is provided for LCD panel Also 5V is converted 3 3V and 1 8V by regulator Converted power is provided for IC in the main board The inverter converts from DC12V to AC 700Vrms and operates back light lamps of module 3 MICOM Part This part is include video controller part And this part consists of EEPROM IC which stores control data Reset IC and the Micom The Micom distinguishes polarity and frequency of the H V sync are supplied from signal cable The controlled data of each modes is stored in EEPROM Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Onl 14 d LIPS Board Block Diagram 12V EMI INPUT RECTIFIER HVDC SWITCHING OUTPUT RECTIFIER d UNE COMPONENTS AND FILTER TRANSFORMER AND FILTER GND 100 240V SIGNAL EWM CONTRO PHOTO COUPLER q COLLENT incu ISOLATION ION 12V O INVERTER CIRCUIT High Voltage Operation description LIPS 1 EMI components This part contains of EMI components to comply with global marketing EMI standards like FCC VCCI CISPR the circuit included a line filter across line capacitor and of course the primary protection fuse 2 Input rectifier and filter This part function is for transfer the i
6. 1 10W J905 6602T20008K SMW200 11P 11P 2 00MM 1R STR R516 0RJ3900D677 MCROSEZPJ391 3900HM 5 1 10W J906 6630V90219A SMW200 28C 28P 2 0MM 2R STRA R517 0RJ1002D677 MCROSEZPJ103 10KOHM 5 1 10W Q901 OTFVI80067A SI3865BDV E3 N CHANNEL MOSF R518 0200000677 MCROSEZPJ000 5 1 10W 1 501 6212AA2004F HC 49 U 14 31818MHZ 30PPM TX R519 0RJ1502D677 MCROSEZPJ153 15KOHM 5 1 10W R522 0RJ4701D677 MCRO3EZPJ472 4 7KOHM 5 1 10 CONTROL BOARD R523 0RJ1000D677 MCROSEZPJ101 1000HM 5 1 10W R524 0RJ1002D677 MCROSEZPJ103 10KOHM 5 1 10W R1 0RD7501Q609 RDM94T1J7K50 7 5KOHM 5 1 4W R525 0RJ4701D677 MCRO3EZPJ472 4 7KOHM 5 1 10 R2 0RD7501Q609 RDM94T1J7K50 7 5KOHM 5 1 4W R526 ORJ0332D677 MCROSEZPJ330 33OHM 5 1 10W R3 0RD1801Q609 RDM94T1J1K80 1 8KOHM 5 1 4W R527 0RJO332D677 MCROSEZPJ330 33OHM 5 1 10W R4 0RD1201Q609 RDM94T1J1K20 1 2KOHM 5 1 4W R530 0RJ1002D677 MCROSEZPJ103 10KOHM 5 1 10W R5 0RD1201Q609 RDM94T1J1K20 1 2KOHM 5 1 4W R701 0RJ4701D677 MCRO3EZPJ472 4 7KOHM 5 1 10 5 1 140 058 THVV502GBC 1 1 12VDC 0 05 702 02447010677 MCRO3EZPJ472 4 7KOHM 5 1 10 sw2 140 058E THVV502GBC 1C1P 12VDC 0 05A R703 0203320677 MCROSEZPJ330 5 1 10W Sw3 140 058E THVV502GBC 1C1P 12VDC 0 05A R704 0RJO102D677 MCROSEZPJ100 100HM 5 1 10W sw4 140 058E THVV502GBC 1C1P 12VDC 0 05A R705 ORJ0102D677 MCROSEZPJ100 100HM 5 1 10W SW5 140 058E THVV502GBC 1C1P 12VDC 0 05A R706 0RJO102D677 MCROSEZPJ100 100HM 5 1 10W ZD1 0DZ560009AG GDZJ5 6B 5 6V 5 45TO5 73V 60 R707 0RJO102D677 M
7. 22007 LG Electronics Inc All right reserved 34 LGE Internal Use Only Only for training and service purposes LG Feb 2007 P NO MFL43002807 Printed in Korea
8. DISK 10PF 6KV 5 TR R112 0RJ1302E472 13K OHM 1 8 W 1 2012 R TP C414 0CH2153K516 15000PF 50V 10 B Y5P 2012 R115 0RJ4703G676 470K OHM 1 4 W 5 3216 R TP C415 0CH2222K516 2200PF 50V 10 B Y5P 2012 R R116 0RJ4703G676 470K OHM 1 4 W 5 3216 R TP C417 0CH2222K516 2200PF 50V 10 B Y5P 2012 R R117 ORH2403D622 240K OHM 1 10 W 2012 5 00 C418 0CH2222K516 2200PF 50V 10 B Y5P 2012 R R118 ORH2403D622 240K OHM 1 10 W 2012 5 00 C419 0CH2222K516 2200PF 50V 10 B Y5P 2012 R202 ORX0242K665 24 OHM 2 W 5 SF CX101 OCZZ9STO25A FILM CAPACITOR 0 47UF 275V 1 R204 ORN3002F409 30K OHM 1 6 W 1 0096 TA52 101 0 2295 024 CAPACITOR 100PF 250V 10 R205 ORN2201F409 2 2K OHM 1 6 W 1 00 52 A CY102 OCZZ9ST024A Y CAPACITOR 100PF 250V 10 R206 0RJ1601E472 1 6K OHM 1 8 W 1 2012 R TP 104 OCZZ9STO23A Y CAPACITOR 4700PF 250V 20 R207 0RH1001D622 1K OHM 1 10 W 2012 5 00 D R208 ORH6800D622 680 OHM 1 10 W 2012 5 00 DIODEs R209 0RH1001D622 1K OHM 1 10 W 2012 5 00 D R211 0RJ1001G476 1K OHM 1 4 W 1 3216 R TP BD101 ODRTWO0121A D2SB60 1121 TIWAN SEMI ST GB R301 0RD1001Q609 1K OHM 1 4 W 3 4 5 00 TA52 D101 ODRDIOO234A PR1007 DIODES TAPING52 2041 R303 ORH0222D622 22 OHM 1 10 W 2012 5 00 D D102 ODRDIO0244A 1N4007 L DIODES TAPING52 DO4 R304 08010020609 10K OHM 1 4 W 3 4 5 00 TAS D103 ODSGF00019A 1N4148 GULF TP DO35 100V 0 1 R309 ORN1502F409 15K OHM 1 6 W 1 00 52 D201 ODRNHO00140A FCH10U15 NIHON INTER BULK TO R310 ORH1004D622
9. General Servicing Precautions 1 Always unplug the receiver AC power cord from the AC power source before a Removing or reinstalling any component circuit board module or any other receiver assembly b Disconnecting or reconnecting any receiver electrical plug or other electrical connection c Connecting a test substitute in parallel with an electrolytic capacitor in the receiver CAUTION A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard d Discharging the picture tube anode 2 Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device DVM FETVOM etc equipped with a suitable high voltage probe Do not test high voltage by drawing an arc 3 Discharge the picture tube anode only by a first connecting one end of an insulated clip lead to the degaussing or kine aquadag grounding system shield at the point where the picture tube socket ground lead is connected and then b touch the other end of the insulated clip lead to the picture tube anode button using an insulating handle to avoid personal contact with high voltage 4 Do not spray chemicals on or near this receiver or any of its assemblies 5 Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable non abrasive
10. Replacement 1 Remove the defective transistor by clipping its leads as close as possible to the component body 2 Bend into a U shape the end of each of three leads remaining on the circuit board 3 Bend into a U shape the replacement transistor leads 4 Connect the replacement transistor leads to the corresponding leads extending from the circuit board and crimp the U with long nose pliers to insure metal to metal contact then solder each connection Power Output Transistor Device Removal Replacement 1 Heat and remove all solder from around the transistor leads 2 Remove the heat sink mounting screw if so equipped 3 Carefully remove the transistor from the heat sink of the circuit board 4 Insert new transistor in the circuit board 5 Solder each transistor lead and clip off excess lead 6 Replace heat sink Diode Removal Replacement 1 Remove defective diode by clipping its leads as close as possible to diode body 2 Bend the two remaining leads perpendicular y to the circuit board 3 Observing diode polarity wrap each lead of the new diode around the corresponding lead on the circuit board 4 Securely crimp each connection and solder it 5 Inspect on the circuit board copper side the solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead
11. coating 3H Anti Glare NOR less than 33 W L1733T BLUE i i issi POWER N ON Senn White Transmissive mode WANT or GREEN STAND BY OFF ON OFF less than 1W AMBER 2 OPTICAL CHARACTERISTICS 2 1 Viewing Angle by Contrast Ratio gt 10 SUSPEND ON OFF OFF less than 1 W AMBER DPMS OFF OFF OFF OFF less than 1 W AMBER Left 60 min 70 Right 60 min 70 Typ Top 60 min 75 Typ Bottom 50 min 65 Typ POWER S W Off less than 1 W OFF 2 2 Luminance 230 min 300 Typ Full White pattern 0 70V 6500K 150 min Full White pattern 0 70V 9300K 75 min 2 3 Contrast Ratio 1400 1 DFC SIGNAL Refer to the Timing Chart 3 1 Sync Signal Type Separate Sync Digital SOG 3 2 Video Input Signal 1 Type R G B Analog 2 Voltage Level 0 0 71 V a Color 0 0 0 Vp p b Color 7 0 0 467Vp p C Color 15 0 0 714Vp p 3 Input Impedance 750 3 3 Operating Frequency Horizontal 30 83kHz Vertical 56 75Hz Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes 6 ENVIRONMENT 6 1 Operating Temperature 10 C 35 C 50 F 95 F Ambient 6 2 Relative Humidity 1026 8096 Non condensing 6 3 MTBF 50 000 HRS with 9096 Confidence Lamp Life 50 000 Hours Min 7 DIMENSIONS with TILT SWIVEL L1733T Width 864 5 mm 14 35 Depth 180 mm 7 09 Height 378 2 mm 14 89 L1933
12. head amp stand Copyright 22007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes 6 7 Remove the screws 1 Pull the front cover upward 2 Then let the all latches are separated 3 1 3 2 3 Put the front face down 8 9 Disassemble back cover Copyright 22007 LG Electronics Inc All right reserved E LGE Internal Use Only Only for training and service purposes DISASSEMBLY Stand In case of Latch 4 1 1 Push the four latches on the bottom to the outside and Separate Stand Body amp Base Reference the 1 2 2 3 6 After finished repair necessarily push 4ea Latches to inside for restoration 10 LGE Internal Use Only Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes DISASSEMBLY Stand In case of Latch 2 1 2 3 Hold the stand body Confirm two latch of right and left 3 4 Push the latch to the inside Push the base to the opposite direction 5 Confirm the condition of separation Copyright 22007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes 11 BLOCK DIAGRAM 15 ysel 4 INOHd33 OSS c 08l81u NOW aso T San AOV
13. 0 16V C525 OCK104CF56A 0603B104K160CT 100nF 10 16V D701 0DS226009AA KDS226 1 2V 85V 300MA 2A 4NS C526 OCK104CF56A 0603B104K160CT 100nF 10 16V D702 005226009 KDS226 1 2V 85V 300MA 2 4NS C527 OCK104CF56A 0603B104K160CT 100nF 10 16V D703 0DS226009AA KDS226 1 2V 85V 300MA 2A 4NS C528 OCK104CF56A 0603B104K160CT 100nF 10 16V D704 0DS226009AA KDS226 1 2V 85V 300MA 2A 4NS C529 OCK104CF56A 0603B104K160CT 100nF 10 16V D705 0DS226009AA KDS226 1 2V 85V 300MA 2A 4NS C530 OCK104CF56A 0603B104K160CT 100nF 10 16V D706 005226009 KDS226 1 2V 85V 300MA 2 4NS C531 OCK104CF56A 0603B104K160CT 100nF 10 16V D707 0DS226009AA KDS226 1 2V 85V 300MA 2A 4NS C532 OCK104CF56A 0603B104K160CT 100nF 10 16V D708 005226009 KDS226 1 2V 85V 300MA 2 4NS C533 OCK104CF56A 0603B104K160CT 100nF 10 16V D709 0DS226009AA KDS226 1 2V 85V 300MA 2A 4NS C534 OCK104CF56A 0603B104K160CT 100nF 10 16V D710 0DS226009AA KDS226 1 2V 85V 300MA 2A 4NS C535 OCK104CF56A 0603B104K160CT 100nF 10 16V D711 005226009 KDS226 1 2V 85V 300MA 2 4NS C536 OCK104CF56A 0603B104K160CT 100nF 10 16V D712 0050 00138 MMBD301LT1G 600MV 30V 1 C537 OCK104CF56A 0603B104K160CT 100nF 10 16V D713 0DD184009AA KDS184 KDS184 KEC 85V C538 OCK104CF56A 0603B104K160CT 100nF 10 16V D714 ODSONO0138A MMBD301LT1G 600MV 30V 1 C701 0CC101CK41A C1608C0G1H101JT 100pF 5 50V D715 0DD184009AA KDS184 KDS184 TP KEC 85V C702 0CC101CK41A C1608C0G1H101JT 100pF 5 50V ZD701 0DZ560009GB BZT52C5V6S F 5
14. 09900178H Cover Assembly L1952T NON BACK COVER ASSY MODULE HSD DUAL L1933TR 040 A AAN32608906 Base Assembly ASSY Lx53 LM57B Lx53 PATTERN TEXTURE 3043900041L 050 A 35509K0245D Cover MOLD ABS L1752 ABS L1752 NEW BODY L1733TR 35509K0246D Cover MOLD ABS L1952 ABS L1952 NEW BODY L1933TR 060 3520900038A Indicator LED amp PRE AMP LX52 PMMA NON LED LENS 070 49509K0266A Plate SHIELD LX52 LAMP L1733TR 49509K0267F Plate PRESS SPTE C 0 3 LAMP SPTE SHIELD for 19 LPL 5ms module L1933TR 080 EBR36881501 PCB Assembly Sub CONTROL T T LM57A ND L1953TR HR KXXXXPN L1953TR HR 090 A 6709900027A SMPS AC DC 100VTO240V 40W 50TO60HZ UL CSA VDE SEV SEMKO FIMKO IMQ OVE BSI WORLD WIDE LIEN CHANG or 68719PT298A PCB Assembly Power POWER LM57A 117525 KNRDQPT 100 EBU30504102 Main Total Assembly L1752HQ BFQ BRAND LM57B L1733TR EBU30504105 Main Total Assembly L1752HQ BFQ BRAND LM57B L1933TR 110 35509K0247A Cover MOLD ABS AF 320T L1752TX ABS 120 49509S0034B Plate SHIELD LX52 REAR SHIELD DUAL 130 49509K0262A Plate SUPPORT L1752 BRACKET L1733TR 49509K0263A Plate SUPPORT L1952S BRACKET L1933TR 140 4940900022B Knob MAIN 5KEY LX52 TACK KNOB ADD SOURCE PRINTING 150 49519K0137A Plate Assembly ASSY STAND HINGE ASSY FOR LX52S T 160 35509K0243A Cover LX52 HINGE L 170 35509K0242A Cover LX52 HINGE R 180 35509K0244A Cover LX52 HINGE COVER BODY 190 64109UP002A Power Cord DTII 3P 11 DTII 3P 04 HONGCHANG UL CSA 1870MM PLUG BLACK or 6410TUWO08A Power Cor
15. 1M OHM 1 10 W 2012 5 00 D D202 ODRNH00130A FCH10U10 NIHON INTER BULK TO R311 ORH1502D422 15K 1 10W 1 TP D306 ODSGD00048A MM4148 GRANDE REEL TAPING LL R313 0RJ6202E472 62K OHM 1 8 W 1 2012 R TP D401 00 0100038 BAV99 F LF DIODES R TP SOT R315 0 20010622 2K OHM 1 10 W 2012 5 00 D Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes 29 LGE Internal Use Only DATE 2007 02 06 5 AL LOC PART NO DESCRIPTION SPECIFICATION R316 0RH2001D622 2K OHM 1 10 W 2012 5 00 D R317 ORJ3303E472 330000 OHM 1 8 W 1 2012 R T R318 0RJ1503E472 150K OHM 1 8 W 1 2012 R TP R319 ORH1303D622 130K OHM 1 10 W 2012 5 00 R320 ORH1502D422 15K 1 10W 1 TP R321 0RH1002D422 10K OHM 1 10 W 1 2012 R TP R401 0RJ1001G476 1K OHM 1 4 W 1 3216 R TP R402 0RJ1001G476 1K OHM 1 4 W 1 3216 R TP R403 0RJ1001G476 1K OHM 1 4 W 1 3216 R TP R404 0RJ1001G476 1K OHM 1 4 W 1 3216 R TP R406 0RJ3600E472 360 OHM 1 8 W 1 2012 R TP R407 0RJ3600E472 360 OHM 1 8 W 1 2012 R TP R408 0RJ3600E472 360 OHM 1 8 W 1 2012 R TP R409 0RJ3600E472 360 OHM 1 8 W 1 2012 R TP TH101 6322A00035A 1002 07 SEMITEC 100HM 15 L1 TRANSFORMER 101 61709 011 EER3016 430UH LX52 LIPS SMPS T301 61709 010 EFD 2124 95UH INVERTER TRANS A T302 61709MC010A EFD 2124 95UH INVERTER TRANS OTHERs A SC101 6620K00020A AC UL CSA 3PPIN BLACK A F101 OF
16. 2N3906S RTK PNP 5V 40V 40 L1933TR R733 0RJ1000D677 MCROSEZPJ101 1000HM 5 1 10W Q702 OTR390609FA KST3906 MTF PNP 5V 40V 40 L1733TR R735 0RJ2001D677 MCROSEZPJ202 2KOHM 5 1 10W Q702 OTR390609DC 2N3906S RTK PNP 5V 40V 40 L1933TR R736 0RJ4701D677 72 4 7 5 1 10 R737 0RJ4701D677 MCROSEZPJA72 4 7 5 1 10 RESISTORs R738 0RJ4701D677 MCROSEZPJA72 4 7 5 1 10 R739 0RJ4701D677 MCROSEZPJA72 4 7 5 1 10 R501 0RJ1000D677 MCROSEZPJ101 1000HM 5 1 10W R903 0RJ5600D677 2 561 5600HM 5 1 10W R502 0RJ0562D677 MCROSEZPJ560 560HM 5 1 10W R904 0RJ2202D677 MCROSEZPJ223 22KOHM 5 1 10W R503 0RJ1000D677 MCROSEZPJ101 1000HM 5 1 10W R905 0RJ2702D677 MCROSEZPJ273 27KOHM 5 1 10W R504 ORJ0562D677 MCRO3EZPJ560 560HM 5 1 10W R907 ORX0331K668 RSD02F4J3R30 3 3OHM 5 2W 12 R505 0RJ4700D677 MCROSEZPJA471 4700HM 5 1 10W R909 0RJ0000D677 MCROSEZPJ000 5 1 10W 1 R506 0RJ1000D677 MCROSEZPJ101 1000HM 5 1 10W R910 0RJ0000D677 MCROSEZPJ000 5 1 10W 1 R507 0RJ0562D677 MCROSEZPJ560 560HM 5 1 10W R508 0RJ4701D677 MCRO3EZPJ472 4 7KOHM 5 1 10 OTHERs R509 0RJ4701D677 MCRO3EZPJ472 4 7KOHM 5 1 10 R510 0RJ4701D677 MCRO3EZPJ472 4 7KOHM 5 1 10 J901 6630TGAO005B QH11121 DNO D DVI 24P 1 90MM R511 0RJ4701D677 MCRO3EZPJ472 4 7KOHM 5 1 10 J902 6630G100316 DZ11AA1 HVG PF D SUB 15P 2 2 R512 0RJ4700D677 MCRO3EZPJ471 4700HM 5 1 10W J904 6602T20008E SMW200 06P 6P 2 00MM 1R STRA R513 0RJ4700D677 MCROSEZPJA471 4700HM 5
17. 6V 5 2TO6V C703 0CC680CK41A C1608C0G1H680JT 68pF 5 50V ZD702 0DZ560009GB BZT52C5V6S F 5 6V 5 2TO6V C704 OCK104CK56A 0603 104 500 100nF 10 50V 20703 ODZ560009GB BZT52C5V6S F 5 6V 5 2TO6V C705 0CC680CK41A C1608C0G1H680JT 68pF 5 50V ZD704 0DZ560009GB BZT52C5V6S F 5 6V 5 2TO6V C706 OCK104CF56A 0603B104K160CT 100nF 10 16V ZD705 0DZ560009GB BZT52C5V6S F 5 6V 5 2TO6V C707 OCK104CF56A 0603B104K160CT 100nF 10 16V ZD708 0DZ560009GB BZT52C5V6S F 5 6V 5 2TO6V C708 OCK104CF56A 0603B104K160CT 100nF 10 16V ZD709 0DZ560009GB BZT52C5V6S F 5 6V 5 2TO6V C709 OCK104CF56A 0603B104K160CT 100nF 10 16V ZD710 0DZ560009GB BZT52C5V6S F 5 6V 5 2TO6V C710 OCK104CF56A 0603B104K160CT 100nF 10 16V OCK104CF56A 0603 104 160 100nF 10 16V ICs C712 OCK104CF56A 0603B104K160CT 100nF 10 16V C713 OCK104CF56A 0603B104K160CT 100nF 10 16V U501 OIPRP00784A FE251MOH LF TSUMO56WHJ LF 3 C714 0CC680CK41A C1608C0G1H680JT 68pF 5 50V U502 EAN30510505 L1952HQ SFQ ARDRQP TSUMO G Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes 27 DATE 2007 02 06 DATE 2007 02 06 S AL LOC PART NO DESCRIPTION SPECIFICATION S AL LOC NO PART NO DESCRIPTION SPECIFICATION U503 01502408608 M24C08 WMNG6TP 8 1KX8BIT L1733TR R714 0RJ1001D677 MCROSEZPJ102 1KOHM 5 1 10W U503 OIMMRO00203A FM24C08 8KBIT 1KX8BIT 2 7VTO L1933TR R
18. 715 0RJ0000D677 MCROSEZPJ000 0OHM 5 1 10W 1 U701 M24C02 RMN6TP 2KBIT 256X8BIT R716 0RJ0332D677 MCROSEZPJ330 5 1 10W U702 M24C02 RMN6TP 2KBIT 256X8BIT R717 0RJ0752D677 MCROSEZPJ750 75OHM 5 1 10W U901 OIPMGFA003G FAN1117AS33X 4 8TO10 3V 3 3V R718 0RJ0682D677 MCROSEZPJ680 68OHM 5 1 10W U902 OIPMGSGO16A LD1086D2T18TR 3 4TO30V 1 8V L1733TR R719 0RJ0682D677 MCROSEZPJ680 68 5 1 10W U902 OIPMG78403A AZ1086S 1 8TRE1 3 2TO10V 1 8 L1933TR R720 0RJ0332D677 MCROSEZPJ330 5 1 10W R721 0RJ0752D677 MCROSEZPJ750 75OHM 5 1 10W FILTERs R722 0RJ0752D677 MCROSEZPJ750 75OHM 5 1 10W R723 0RJ0000D677 MCROSEZPJ000 5 1 10W 1 L901 OLCMLO00003B MLB 201209 0120P N2 1200HM 2 R724 0RJ4701D677 MCROSEZPJA472 4 7 5 1 10 L902 OLCMLO00003B MLB 201209 0120P N2 1200HM 2 R725 0RJ4701D677 MCROSEZPJA72 4 7 5 1 10 L903 OLCMLO00003B MLB 201209 0120P N2 1200HM 2 R726 0RJ4701D677 MCROSEZPJA72 4 7 5 1 10 R727 0RJ4701D677 72 4 7 5 1 10 TRANSISTOR R728 0RJ4701D677 MCROSEZPJA472 4 7KOHM 5 1 10 R729 0RJ4701D677 7 472 4 7 5 1 10 0501 OTR390409AE KST3904 NPN 6V 60V 40V 200MA L1733TR R730 0RJ2200D677 MCROSEZPJ221 2200HM 5 1 10W Q501 OTRKE80046A 2 39045 NPN 6V 60V 40V 200MA L1933TR R731 0RJ2200D677 MCROSEZPJ221 2200HM 5 1 10W Q701 OTR390609FA KST3906 MTF PNP 5V 40V 40 L1733TR R732 0RJ1000D677 MCROSEZPJ101 1000HM 5 1 10W Q701 OTR390609DC
19. 9 350 37 2 60 2 H Pixels 28 321 31 468 900 720 18 108 54 720 X 400 V Lines 70 08 449 400 12 2 35 3 H Pixels 25 175 31 469 800 640 16 96 48 640 x 480 V Lines 59 94 525 480 10 2 33 4 H Pixels 31 5 37 5 840 640 16 64 120 640 x 480 V Lines 75 500 480 1 3 16 5 H Pixels 40 0 37 879 1056 800 40 128 88 800 x 600 V Lines 60 317 628 600 1 4 23 6 H Pixels 49 5 46 875 1056 800 16 80 160 800 x 600 V Lines 75 0 625 600 1 3 21 7 H Pixels 57 283 49 725 1152 832 32 64 224 832 x 624 V Lines 74 55 667 624 1 3 39 8 H Pixels 65 0 48 363 1344 1024 24 136 160 1024 x 768 V Lines 60 0 806 768 3 6 29 9 H Pixels 78 75 60 123 1312 1024 16 96 176 1024 x 768 V Lines 75 029 800 768 1 3 28 10 H Pixels 100 0 68 681 1456 1152 32 128 144 1152 x 870 V Lines 75 062 915 870 3 3 39 11 H Pixels 92 978 61 805 1504 1152 18 134 200 1152 x 900 V Lines 65 96 937 900 2 4 31 12 H Pixels 108 0 63 981 1688 1280 48 112 248 1280 x 1024 V Lines 60 02 1066 1024 1 3 38 13 H Pixels 135 0 79 976 1688 1280 16 144 248 1280 x 1024 V Lines 75 035 1066 1024 1 3 38 Copyright 22007 LG Electronics Inc All right reserved 7 LGE Internal Use Only Only for training and service purposes DISASSEMBLY Set 1 2 Soft pad on the table Monitor on the pad 3 4 Pull up the stand part Hold the head amp stand base and then Twist Stand until Click 4 2 5 Separate
20. CLAU nm a sr oEr 2 8x oly af 2 gt 7 l 1 5v Mon 3 3V PL 4 2 u FC11175 33 e ibd 3 3D 11 0305 foour 16v Lo1117518TR mw air had JN C306 470uF tev NS opt for gt 6800 2 2305 47K 9S MON i 2 8 8 L To otur T1000pF 8 8 4 200711 BVS 4 2 200 tavs gt sys 1 21 SCALER PWM CONTROL 100 OHM LIPS PWM CONTROL EEPROM 4 2 D SCLAI1 2 D420 71 D SDAAI 1 2 Sven 4 se TER 2 ge mes sss mode 8 lt SIBVHPD cocsvo Shek Leap Lease 18 fU geg c m 2 B4 SCALER PHM CONTROL i00pF LIPS PWM CONTROL iuF LAMPADUL4 21 LINE cus c33 30 4 21 8447 100 EEPROM 2 D SCLB A caog
21. CROSEZPJ100 100HM 5 1 10W ZD2 ODZ560009AG GDZJ5 6B 5 6V 5 45TO5 73V 60 R708 0RJO102D677 MCROSEZPJ100 100HM 5 1 10W ZD3 0DZ560009AG GDZJ5 6B 5 6V 5 45TO5 73V 60 R709 0RJO102D677 MCROSEZPJ100 100HM 5 1 10W J1 6602T20009E SMAW200 06P 6P 2 00MM 1R ANG R710 ORJ0332D677 MCROSEZPJ330 33OHM 5 1 10W J2 6602T20009B SMAW200 03P 3P 2 00MM 1R ANG R711 ORJO000D677 MCROSEZPJ000 5 1 10W 1 J3 6602T20009B SMAW200 03P 3P 2 00MM 1R ANG R712 0RJO102D677 MCROSEZPJ100 100HM 5 1 10W LED1 EAV30486601 BL BYOBK201G AB LC4 5 ROUND R713 0RJO102D677 MCROSEZPJ100 100HM 5 1 10W Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 28 LGE Internal Use Only DATE 2007 02 06 DATE 2007 02 06 S_ AL LOC NO PART NO DESCRIPTION SPECIFICATION 5 LOC NO PARTNO DESCRIPTION SPECIFICATION POWER BOARD CAPACITORS D402 ODSDIO0038A BAV99 F LF DIODES SOT D403 ODSDIO0038A BAV99 F LF DIODES SOT A C101 0CZZ9STO17A AL EL CAPACITOR 100UF 450V 2 D404 0DSDI00038A BAV99 F LF DIODES R TP SOT C103 0CZZ9ST014A AL EL CAPACITOR 33UF 50V 20 D405 0DSDI00038A BAV99 F LF DIODES R TP SOT C104 0CH5271K416 270PF 2012 50V 5 NP0 R TP D406 0DSDI00038A BAV99 F LF DIODES R TP SOT C105 0CZZ9ST013A AL EL CAPACITOR 0 47UF 50V 2 D407 0DSDI00038A BAV99 F LF DIODES R TP SOT C106 OCK222DK4DA 2200PF 2012 50V 5 COG R TP D408 O
22. DSDI00038A BAV99 F LF DIODES SOT C107 0 1040 945 0 1UF D 50V 80 20 F Y5V ZD101 0DZ330009CC MTZJS 3B TP ROHM K 0034 3 C201 OCKZTTAOO2E EKR3A102K09FK5 SAMWHA 1 10 ZD301 ODZGD00128A ZMM5231B GRANDE REEL TAPING C202 OCZZ9STO21A AL EL CAPACITOR 1000UF 25V 2 C203 OCZZ9STO20A AL EL CAPACITOR 680UF 25V 20 TRANSISTORS amp ICs C204 OCZZ9STO18A AL EL CAPACITOR 1000UF 16V 2 C205 OCZZ9STO18A AL EL CAPACITOR 1000UF 16V 2 0101 OTF760000AD SSS7N60B FAIRCHILD ST TO220F C206 OCZZ9ST021A AL EL CAPACITOR 1000UF 25V 2 Q301 OTR144009Al DTA144EK CHIP TP ROHM C207 OCZZ9STO19A AL EL CAPACITOR 470UF 25V 20 Q302 0TR144009AH DTC144EK CHIP TP ROHM C208 OCKZTTA002B 1KV TP5 0 TAPING Q303 OTRKE80046A 2N39048 KEC R TP SOT23 60V 2 C210 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP Q304 OTR390609DC 2N3906S RTK KEC REEL TAPING C301 OCZZTCTO06D C3216X7R1E225M TDK 25V 2 2UF Q305 OTFDI80001A 2N7002 DIODES R TP SOT23 60V C303 OCZZTCTO06D C3216X7R1E225M TDK 25V 2 2UF Q306 OTFDI80001A 2N7002 DIODES R TP SOT23 60V C304 OCZZTCTOO6D C3216X7R1E225M TDK 25V 2 2UF Q307 OTR390609DC 2N3906S RTK REEL TAPING C305 OCZZTCTOO6D C3216X7R1E225M TDK 25V 2 2UF Q308 OTRKE80046A 2N3904S KEC R TP SOT23 60V 2 C306 OCK224DH56A 0 22UF 2012 25V 10 X7R A U101 0IPMG78425A FAN7601 FAIRCHILD DIP 8P BUL C307 0CH3104K566 0 1UF 50V 10 X7R 2012 R TP U201 0IPMG78424A AZ431 A BCD 3P TO 92 TAPING C308 OCK105DH56A 1UF 2012 25V 10 X7R R TP U301 OIPMG78426A OZL68GN
23. F 5 50V C508 OCK473CH56A C1608X7R1E473KT 47nF 10 25V C901 OCE107EF610 KMG16VB100M 100uF 20 16V 12 C509 0CC270CK41A C1608C0G1H270JT 27pF 596 50V C902 OCK103CK51A 0603B103K500CT 10nF 1096 50V C510 0CC270CK41A C1608C0G1H270JT 27pF 596 50V C903 0CC102CK41A C1608C0G1H102JT 1nF 5 50V C511 OCK103CK51A 0603B103K500CT 10nF 10 50V C904 OCK105CD56A C1608X7R1A105KT 1 10 10V C512 OCK103CK51A 0603B103K500CT 10nF 10 50V C905 OCE107EF610 KMG16VB100M 100uF 20 16V 12 C513 OCK104CF56A 0603B104K160CT 100nF 10 16V C906 OCE107EF610 KMG16VB100M 100uF 20 16V 12 C514 OCK224CF56A 0603B224K160CT 220nF 10 16V C907 OCE107EF610 KMG16VB100M 100uF 20 16V 12 C515 OCE106CF638 SHL5 0TP16VB10M 10uF 20 16V C908 0 104 56 0603 104 500 100 10 50V C516 OCK104CF56A 0603B104K160CT 100nF 10 16V C909 0 104 56 0603 104 500 100nF 10 50V C517 OCK104CF56A 0603B104K160CT 100nF 10 16V C910 0 104 56 0603 104 500 100nF 10 50V C518 OCK104CF56A 0603B104K160CT 100nF 10 16V C911 0 102 56 0603B102K500CT 1nF 10 50V X C519 OCK104CF56A 0603B104K160CT 100nF 10 16V C912 0 102 56 0603B102K500CT 1nF 10 50V X C520 OCK104CF56A 0603B104K160CT 100nF 10 16V C913 0 102 56 0603 102 500 1nF 10 50V X C521 OCK104CF56A 0603B104K160CT 100nF 10 16V C914 OCE227EF610 KMG16VB220M 220uF 20 16V 21 C522 OCK104CF56A 0603B104K160CT 100nF 10 16V C523 OCK104CF56A 0603B104K160CT 100nF 10 16V DIODEs C524 OCK104CF56A 0603B104K160CT 100nF 1
24. IEISIN Jayng eur TWOXWINSL Sdwe aiaa INOHd33 8 5 H wen 22028 LGE Internal Use Only 22 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes BLOCK DIAGRAM POWER due SueJL uonooejoJd 39018 H3 1H3ANI 21 101 u09 AS xXoeqpeeJ eur l 10 u09 330 uO 1 H3MOd 3a 22A LGE Internal Use Only 243 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes DESCRIPTION OF BLOCK DIAGRAM 1 Video Controller Part This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock The pixel clock for each mode is generated by the PLL The range of the pixel clock is from 25MHz to 135 2 This part consists of the Scaler ADC convertor TMDS receiver and LVDS transmitter The Scaler gets the video signal converted analog to digital interpolates input to 1280 X 1024 resolution signal and outputs 8 bit R G B signal to transmitter 2 Power Part This part consists of the one 3 3V
25. L G Website http biz LGservice com COLOR MONITOR CHASSIS NO LM57B MODEL FLATRON L1733TR L1733TR SFQ A MQP FLATRON L1933TR L1933TR SFQ A MQP A RQP Same model for Service CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL qi To apply the MSTAR Chip CONTENTS SPECIFICATIONS mu u u pereo Aiea 2 SERVICE 17 PRECAUTIONS iiia aite nir cre Lernens 3 TROUBLESHOOTING GUIDE 18 TIMING 7 WIRING DIAGRAM LLL 24 DISASSEMBLY 5 3 nae Ee Poe ecco ded 8 5 BLOCK DIAGRAM eene 12 5 DISCRIPTION OF BLOCK DIAGRAM 14 REPLACEMENT PARTS LIST 27 ADJUSTMENT 16 SCHEMATIC DIAGRAVM 31 SPECIFICATIONS 1 LCD CHARACTERISTICS 4 Max Resolution Type TFT Color LCD Module D sub Analog 1280 x 1024 9 75Hz Active Display Area 17 inch L1733T Digital 1280 x 1024 9 60Hz 19 inch L1933T Pixel Pitch 0 264 H x 0 264 V L1733T 5 POWER SUPPLY 0 294 H x 0 294 V L1933T 5 1 Power AC 100 240V 50 60Hz 0 6A Color Depth bits 16 2M colors Size 858 5 H x 296 5 V x 17 0 D L1733T 5 2 Power Consumption 896 H x 324 V x 17 5 D L1933T Electrical Interface LVDS MODE SYNC VIDEO POWER CONSUMPTION LED COLOR Surface Treatment Hard
26. O OtuF 2 mm T gts ig 30 4 21 LGE Internal Use Only 232 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 INVERTER R306 R309 ns 166 1 224 Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes 233 LGE Internal Use Only 4 POWER V S7TE0 dd0d uei gee ERS Ro 55 1 1 8W 7 8 5800 5500 Els 2S 58 4 g gt 4 TT 5 45 ae a8 pom a8 4 88 pss ge 5 g 2 24 5 38 8 58 4 amp E 8 8 I 88 DR up N 8 gh 2 aR 588 SRR E 258 S 8 88 289 178W 5 5328 ee iil r l 558 988 ES ul T y lt 1K 1 H 4 9 z lt lt aN w lt gt gt Copyright
27. O2MICRO 20P SOP BULK C309 OCK224DH56A 0 22UF 2012 25V 10 R TP X7R U303 0 00001 AP4511GD ADVANCED POWER ELEC C310 OCK105DH56A 1UF 2012 25V 10 X7R R TP U304 AP4511GD ADVANCED POWER ELEC C313 0CH2393K516 39000PF 50V 10 B Y5P 2012 201 OIPMG78432A LTV 817M V C LITEON 4P WID C314 OCK152DK51A 1500PF 2012 50V 10 C315 0CH3103K516 10000PF 50V 10 B Y5P 2012 RESISTORs C317 0CH5221K416 220PF 50V 5 NPO 2012 R TP C320 OCZZTCTO06D C3216X7R1E225M TDK 25V 2 2UF A R101 0RJ4703G676 470K OHM 1 4 W 5 3216 R TP C402 0CK22201510 2200PF D 1KV 10 R102 0RJ6801E472 6800 OHM 1 8 W 196 2012 R TP C403 OCZZ9STO28A CERAMIC DISK 10PF 6KV 5 TR R103 ORH1004D622 1M OHM 1 10 W 2012 5 00 D C404 0CH2153K516 15000PF 50V 10 B Y5P 2012 R104 0RH1001D622 1K OHM 1 10 W 2012 5 00 D C405 0CK22201510 2200PF D 1KV 10 R105 08009120609 91 OHM 1 4 W 3 4 5 52 406 OCZZ9ST028A CERAMIC DISK 10PF 6KV 5 TR R106 ORH2201D622 2 2K OHM 1 10 W 2012 5 00 C407 0CH2153K516 15000PF 50V 10 B Y5P 2012 R107 ORD8203A609 820K OHM 1 2 W 7 0 5 00 TA C409 0CK22201510 2200PF D 1KV 10 R108 0RD4702A609 47K OHM 1 2 W 7 0 5 00 5 C410 OCZZ9STO28A CERAMIC DISK 10PF 6KV 5 TR R109 0RX0560J609 0 56 1 W 5 52 C411 0CH2153K516 15000PF 50V 10 B Y5P 2012 R110 ORX1003K607 100KOHM 2 W 5 TA62 C412 0CK22201510 2200PF D 1KV 10 B Y5P R R111 0RD0471Q609 4 70 1 4W 3 5 52 C413 OCZZ9STO28A CERAMIC
28. T Width 402 mm 15 83 Depth 180 mm 7 09 Height 407 5 mm 16 04 8 WEIGHT with TILT SWIVEL L1733T Net Weight 3 5 kg 7 72 1 5 Gross Weight 4 6 kg 10 14 Ibs L1933T Net Weight 4 4 kg 9 70 1 5 Gross Weight 5 6 kg 12 35 Ibs LGE Internal Use Only PRECAUTION WARNING FOR THE SAFETY RELATED COMPONENT There are some special components used in LCD monitor that are important for safety These parts are marked on the schematic diagram and the replacement parts list It is essential that these critical parts should be replaced with the manufacturer s WARNING BE CAREFUL ELECTRIC SHOCK f you want to replace with the new backlight CCFL or inverter circuit must disconnect the AC adapter because high voltage appears at inverter circuit about specified parts to prevent electric shock fire or other hazard Do not modify original design without obtaining written permission from manufacturer or you will void the original parts and labor guarantee TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT Must mount the module using mounting holes arranged in four corners Do not press on the panel edge of the frame strongly or electric shock as this will result in damage to the Screen Do not scratch or press on the panel with any sharp objects such as pencil or pen as this may result in damage to the panel Protect the module from the ESD as it may damage the e
29. V Check D102 Check Q101 Drain NO Waveform gt Trouble in Q101 Check D201 D202 NO gt Trouble in D201 D202 Voltage p CHECK 5V 12V Line Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Onl 22 6 Raster NO Raster Lamp Off Only for training and service purposes i NO Check Scaler Output s di Main Board pe Check U301 No gt Check Q301 Q302 5V Check U301 Pin2 OVP NO Check the waveform of U301 Less than 1 8V Pin11 12 19 20 Check U301 Pin10 CMP NO gt Check the waveform of U301 Less than 2 75V Pin11 12 19 20 If waveform is no problem Check U303 U304 NO gt Check 0303 0308 Drain waveform Or Trouble in U303 U304 CHECK T301 T302 Copyright 2007 LG Electronics Inc All right reserved 23 LGE Internal Use Only WIRING DIAGRAM 3P 6631T20010E L 6631900125A L Ls 1733TR 1933TR 11P 6631T20023J 6631900011H 30P 6631900109A Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 24 LGE Internal Use Only EXPLODED VIEW
30. ZZTTHOO1E TIME LAG HBC 2153 15MXE LEAD FB101 6210 0030 BRS3550B BO SUNG 3550MM RADI A HS1 4920900021A EXTRUSION 10 20 16 LX52 A HS2 4920900021A EXTRUSION 10 20 16 LX52 HS3 4920900022A PLATE 7 60 16 LX52 HS4 4920900032A PLATE 20 5 10 5 12 0 L202 61409B0009A HL 1520S JEONGSAN 7 0UH 25 A LF101 6200J000154 13 0 710 23680 SAMWAH BULK L P201 6602T20008K SMW200 11 YEONHO 11 2 0MM L P401 6630V90218A 35001WR YEONHO 2P 3 5MM DIP P402 6630V90218A 35001WR YEONHO 2P 3 5MM DIP P403 6630V90218A 35001WR YEONHO 2P 3 5MM DIP P404 6630V90218A 35001WR YEONHO 2P 3 5MM DIP A J30 971 0016 TIN HDC 0 60H NON NON A J31 971 0016 TIN HDC 0 60H NON NON Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 30 LGE Internal Use Only SCHEMATIC DIAGRAM 1 SCALER ST OET 4 oper 1 D SOAB 1 axat 1 paxa 1 maet 1 1 vovr 1 axo 1 PXC 4 BLU A GANA US FED A 1 HSYNC 4 VSYNC 4 D SDAA 4 D SCLA 1 MODON 2 2
31. applicator 10 by volume Acetone and 90 by volume isopropyl alcohol 90 99 strength CAUTION This is a flammable mixture Unless specified otherwise in this service manual lubrication of contacts in not required 6 Do not defeat any plug socket B voltage interlocks with which receivers covered by this service manual might be equipped 7 Do not apply AC power to this instrument and or any of its electrical assemblies unless all solid state device heat sinks are correctly installed 8 Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead Always remove the test receiver ground lead last Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes 9 Use with this receiver only the test fixtures specified in this service manual CAUTION Do not connect the test fixture ground strap to any heat sink in this receiver Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the incidence of component damage caused by static by static electricity 1 Immediately before handling any semicond
32. at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures LGE Internal Use Only Circuit Board Foil Repair Excessive heat applied to the copper foil of any printed circuit board will weaken the adhesive that bonds the foil to the circuit board causing the foil to separate from or lift off the board The following guidelines and procedures should be followed whenever this condition is encountered At IC Connections To repair a defective copper pattern at IC connections use the following procedure to install a jumper wire on the copper pattern side of the circuit board Use this technique only on IC connections 1 Carefully remove the damaged copper pattern with a sharp knife Remove only as much copper as absolutely necessary 2 carefully scratch away the solder resist and acrylic coating if used from the end of the remaining copper pattern 3 Bend a small U in one end of a small gauge jumper wire and carefully crimp it around the IC pin Solder the IC connection 4 Route the jumper wire along the path of the out away copper pattern and let it overlap the previously scraped end of the good copper pattern Solder the overlapped area and clip off any excess jumper wire C
33. d UL_CSA LP 31 8 SVT 18X3C LS 13_1 87M_BLK LP 31 LS 13 1 87M 125V 10 SVT 3XAWG18 BLACK UL CSA N Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Onl 26 d REPLACEMENT PARTS LIST CAUTION BEFORE REPLACING ANY OF THESE COMPONENTS READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL MAIN BOARD AND POWER BOARD PARTS ARE DIFFERENT NOTE SAFETY Mark AL ALTERNATIVE PARTS DATE 2007 02 06 DATE 2007 02 06 S AL LOC NO PART NO DESCRIPTION SPECIFICATION S PALILOC NO PART NO DESCRIPTION SPECIFICATION MAIN BOARD CAPACITORS C715 0CC680CK41A C1608C0G1H680JT 68pF 5 50V C716 OCK104CF56A 0603 104 160 100nF 10 16V C501 OCK104CF56A 0603B104K160CT 100nF 10 16V C717 OCK104CF56A 0603B104K160CT 100nF 10 16V C502 OCK473CH56A C1608X7R1E473KT 47nF 10 25V C718 OCK104CF56A 0603B104K160CT 100nF 10 16V C503 OCK473CH56A C1608X7R1E473KT 47nF 10 25V C719 OCK104CF56A 0603B104K160CT 100nF 10 16V C504 OCK473CH56A C1608X7R1E473KT 47nF 10 25V C720 OCK104CF56A 0603B104K160CT 100nF 10 16V C505 OCK473CH56A C1608X7R1E473KT 47nF 10 25V C723 OCK104CF56A 0603 104 160 100nF 10 16V C506 0CC102CK41A C1608C0G1H102JT 1nF 5 50V C C724 OCK105CD56A C1608X7R1A105KT 1 10 10V C507 OCK473CH56A C1608X7R1E473KT 47nF 10 25V C725 OCC101CK41A C1608COG1H101JT 100p
34. dit Week of Manufacture Year of Manufacture Serial Number a Input User Info Data b Click Update button C Click Write button c Remove all default number d Add 300 3FF 300 e Click Start button f Click Exit button Copyright 22007 LG Electronics Inc All right reserved 16 LGE Internal Use Only Only for training and service purposes SERVICE OSD 1 Turn off the power switch at the front side of the display 2 Wait for about 5 seconds and press MENU POWER switch with 1 second interval 3 The SVC OSD menu contains additional menus that the User OSD menu as described below a Auto Color W B balance and Automatically sets the gain and offset value b NVRAM INIT EEPROM initialize 24C08 c CLEAR ETI To initialize using time d AGING Select Aging mode on off e R G B 9300K Allows you to set the R G B 9300K value manually f R G B 6500K Allows you to set the R G B 6500K value manually g R G B Offset Allows you to set the R G B Offset value manually Analog Only h R G B Gain Allows you to set the R G B Gain value manually Analog Only i MODULE To select applied module Video Signal Generator ass he PARALLEL PORT 00090 0 0000 oleo Power inlet required
35. her safety precautions 8 Minimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device LGE Internal Use Only General Soldering Guidelines 1 Use a grounded tip low wattage soldering iron and appropriate tip size and shape that will maintain tip temperature within the range or 500 F to 600 F 2 Use an appropriate gauge of RMA resin core solder composed of 60 parts tin 40 parts lead Keep the soldering iron tip clean and well tinned Thoroughly clean the surfaces to be soldered Use a mall wire bristle 0 5 inch or 1 25cm brush with a metal handle Do not use freon propelled spray on cleaners 5 Use the following unsoldering technique a Allow the soldering iron tip to reach normal temperature 500 F to 600 F b Heat the component lead until the solder melts c Quickly draw the melted solder with an anti static suction type solder removal device or with solder braid CAUTION Work quickly to avoid overheating the circuitboard printed foil 6 Use the following soldering technique a Allow the soldering iron tip to reach a normal temperature 500 F to 600 F b First hold the soldering iron tip and solder the strand against the component lead until the solder melts ABO c Quickly move the so
36. ldering iron tip to the junction of the component lead and the printed circuit foil and hold it there only until the solder flows onto and around both the component lead and the foil CAUTION Work quickly to avoid overheating the circuit board printed foil d Closely inspect the solder area and remove any excess or splashed solder with a small wire bristle brush IC Remove Replacement Some chassis circuit boards have slotted holes oblong through which the IC leads are inserted and then bent flat against the circuit foil When holes are the slotted type the following technique should be used to remove and replace the IC When working with boards using the familiar round hole use the standard technique as outlined in paragraphs 5 and 6 above Removal 1 Desolder and straighten each IC lead in one operation by gently prying up on the lead with the soldering iron tip as the solder melts 2 Draw away the melted solder with an anti static suction type solder removal device or with solder braid before removing the IC Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each IC lead against the circuit foil pad and solder it 3 Clean the soldered areas with a small wire bristle brush It is not necessary to reapply acrylic coating to the areas Small Signal Discrete Transistor Removal
37. lectronic circuit C MOS Make certain that treatment person s body are grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time The module not be exposed to the direct sunlight Avoid contact with water as it may a short circuit within the module f the surface of panel become dirty please wipe it off with a softmaterial Cleaning with a dirty or rough cloth may damage the panel N CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes 650Vrms burn or take fire Leakage Current Hot Check Circuit AC Volt meter Good Earth Ground such as WATER PIPE CONDUIT etc _ To Instrument s exposed METALLIC PARTS Ld 1 5 Kohm 10W LGE Internal Use Only Handle with care wires or connectors of the inverter circuit If the wires are pressed cause short and may SERVICING PRECAUTIONS CAUTION Before servicing receivers covered by this service manual and its supplements and addenda read and follow the SAFETY PRECAUTIONS on page 3 of this publication NOTE unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication always follow the safety precautions Remember Safety First
38. mv 10 005 Chi 24V 18 Aug 2004 09 00 51 2 u201 428 V SYNC Tek Saws _ 3 60 234 Rz histogram tomy 916 05 Cht J TATV 18 Aug 2004 09 02 50 Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes 20 LGE Internal Use Only 4 TROUBLE IN DPM TROUBLE IN DPM CHECK NO CHECK PC R442 R443 CHECK NO PC IS NOT GOING INTO DPM OFF MODE U201 PIN 27 28 SYNC PULSE TROUBLE IN U201 Waveforms 3 8442 Tek S ooMs s 144 Acas 3 R443 V Sync 1 Tek SITE 5 00ks s pr 3 Acqs 200mv Mio oas Chi 2 44V 18 Aug 2004 09 00 51 s reg 60 234 Hz nstable Chi TATV 18 Aug 2004 gt CHECK H V SYNC LINE Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes 2 942 LGE Internal Use Only 5 POWER NO POWER POWER INDICATOR OFF Fuse F101 OK NO Trouble in Fuse F101 C101 Voltage 110 gt 160 220 gt 304 NO gt Check BD101 CHECK U101 Pin6 Waveform Square wave Come out NO Check U101 Pin7 9 10
39. nput AC voltage to a DC voltage through a bridge rectifier and a bulk capacitor 3 Energy Transfer This part function is for transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter This part function is to make a pulse width modulation control and to provide the driver signal to power switch to adjust the duty cycle during different AC input and output loading condition to achieve the dc output stabilized and also the over power protection is also monitor by this part 5 Photo Coupler isolation This part function is to feed back the DC output changing status through a photo transistor to primary controller to achieve the stabilized DC output voltage 6 Signal collection This part function is to collect the any change from the DC output and feed back to the primary through photo transistor Copyright 22007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Onl 165 T ADJUSTMENT Windows EDID V1 0 User Manual 2 EDID Read amp Write 1 Run WinEDID exe Operating System MS Windows 98 2000 XP Port Setup Windows 98 gt Don t need setup Windows 2000 XP gt Need to Port Setup This program is available to LCD Monitor only WinEDID 1 1 Port Setup a Copy UserPort sys file to c WINNT system32 drivers folder b Run Userport exe 2 E
40. opyright 22007 LG Electronics Inc All right reserved Only for training and service purposes At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation of a jumper wire on the component side of the circuit board 1 Remove the defective copper pattern with a sharp knife Remove at least 1 4 inch of copper to ensure that a hazardous condition will not exist if the jumper wire opens 2 Trace along the copper pattern from both sides of the pattern break and locate the nearest component that is directly connected to the affected copper pattern 3 Connect insulated 20 gauge jumper wire from the lead of the nearest component on one side of the pattern break to the lead of the nearest component on the other side Carefully crimp and solder the connections CAUTION Be sure the insulated jumper wire is dressed so the it does not touch components or sharp edges LGE Internal Use Only TIMING CHART VIDEO A gt E up SYNC 455 Sync Dot Total Video Sync Front Blanking ODE H V Polarity Clock Frequency fs D oy By Resolution 1 H Pixels 25 175 31 469 800 640 16 96 48 640 x 350 V Lines 70 09 44
41. se is zi Tras 0000F SOGINO LVA2P ass te 5 nag caopo oa7ur RINOM LVACKM tt 2 gt 580 50 RINOP LVACKP lt AVDD ADC GND57 REFM VDDP56 i Ice T REFP LVA3M Y3M A t HSYNCO LVA3P 4 1 2 VSYNCO MODE 11 a gt GND29 00 5 52 2_ VDDC51 x u mixleleleinx ane 0 0 gt s s s ESO 2 amp 27 i if if if Z Z SDATA lt 85 gt gt Ale ala ERA 2 9 Bu a 5555 ae a qo ala 4 215 7 EE 3 1 2 ala 5 8 S 1 2 ac csz 4 cent 2 Saa 1 norm 0 4 7K FEES gy 58 8858 68 8 8 80k sor LGE Internal Use Only 233 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 2 POWER amp WAFER 4401 I T KCN DS 3 0052 Nu a Nu P p e e 30 is E 8 3 oj Er tie RED A 4 2 oo O SDAAI1 2 CAMA It oe PES o ewe 1 14 2 199 gt csv Basa ione jov 14 2 Redo 33 D S
42. uctor component or semiconductor equipped assembly drain off any electrostatic charge on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or exposure of the assembly 3 Use only a grounded tip soldering iron to solder or unsolder ES devices 4 Use only an anti static type solder removal device Some solder removal devices not classified as anti static can generate electrical charges sufficient to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device from its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive material 7 Immediately before removing the protective material from the leads of a replacement ES device touch the protective material to the chassis or circuit assembly into which the device will be installed CAUTION Be sure no power is applied to the chassis or circuit and observe all ot

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