LCD TV SERVICE MANUAL - Turuta Electronics World
Contents
1. R896 R898 R8010 R8011 Small HD 4 7K X 47K X Abdo 10 0082 A 0 12 7 Small FHD 27 47 X 4 7K 47K d 8886 SEEREEE Non Small HD 478 X X 47K sralo BBEBBER zB Close to IC as close as possible Non Small FHD X 47K 47K X 42V VDDC X 47 47K 4 7K HD 5VST_MST y 1 8V DDR y e e mu mm mm mm mm mm mm mm mm mu mm mm mum mm mm 100HZ X 4 7K X 47 43 3V MST 331 1 1 1 802 SERIAL FLASH 64M MX25L6405DMI 12G Small HD 19 22 26 Inch C811 R8003 ii 4 3 3V_ MULTI MST Non Small FHD Normal non 100Hz FHD Model 10 8 T i 5 8 JSS C MUETEMST 2 88 885 256 a Sede ea2. 9J501NE P 24V SMALL 15V ue 16V NTP 75 58113401 31006 MP ig 7 68uF 0 010 NN BV_MULTI gt 3 3V gt 1 2V MLB 201209 0120P N2 gt gt P_12V_SMALL_15V 4 AE t gt 2 AUDIO _ L 120 201002 C1007 P1001 25V TO OtuF FM20020 24 11001 _5 TIE t t 5VST_MST Power ON 120 21003 1008 C1011 Eo tour T0 01uF 1C1001 x BD9130EFJ E2 5 2 e GND ST 5V gt 3 3V GND LJ zx 45V MULTI nverter Error Out OUT 1 27V PWM Dim 101007 t gt 12 VDDC AP2121N 3 3TRE1 1098 UEC READY 45VST MST VIN vou 0 4 uFC ose I 1 11003 AZ1085S 3 3TR E1 P_5V NON 19_22 i9 55 RIOTS e INPUT s 2 OUTPUT 5483 MULTI MST H1000 C1054 1 1028 1C1002 a 81077 0 Power 2 2K P1002 TO tuF 16V AP1117EG 18 iis READY GND SMAW200 11 MLB 201209 0120P N2 pl 81008 10K 541 8V DDR a 01000 120 DDR2 Viet 5 2V 25 38755 15 ioo eco wur 5 pP 5V NON 19 22 DSP 5 2V 1 l 15V 1 12V 12 SMALL 1594 P 12V SMALL 15 E Hn GND 1 25 1 2 1 GND 7 24V P 24V SMALL 15 24 SMALL 15V GND Inverter ON e 22 Switch 12V P12V PWM Di z Switch 5V 5V_MULTI gt 1 8V LI 22 LI NC AP 5V 12V SMALL 15V NON 19
3. 6002 o 1 COMPONENTI AV1 MNT PACK TYPE D JK100 JK100 PPJ226 01 CAN ABGNIO SPRING_A 2 Y is i A 8005 75 20103 L 3 BLIC LUG_A 2_ r 20101 ir 1 amp Le 00 _ _ 1 1 2 RDIC LUG_A compa PR 09 20100 R107 MHItP CAN i T WHICLUG 1 2 L 0101 R104 R118 3 D D CAN_2 4 E 12K RDJO SPRING A 1 RDICONTACT A 1 R19 2 12 CAN ADUC30S08010L pa Biss YLJO SPRING B VLIO SPRING A VOUT UE ow id Hu YLJCONTACT B A CVBS VN 103 0 Ais SPK R HOTEL HOTEC E tos L d WH C LUG B SGBWHIC LUG A 2 R115 10K MNT_LOUT acne ae m LAS p M ye MUTE LINE 1 43 I v I HOTEL RDJ2P CAN RD O SPRING_B ADJO SPRING_A_2 e e SPK EET IX MNT ROUT t NO Gore one 1 AUDIO R 3 TKON oer i C
4. sooo ers wno gt 240 S 17 Copyright 2009 LG Electronics Inc All right reserved a6 LGE Internal Use Only Only for training and service purposes 11 Mechical spec m w 1 Gap between Front Frame Back cover and Middle Cabinet 2 Gap between Front Frame Middle Cabinet Top View SS p mem s Front Frame li CT 1 EN Gap b between Front Frame Back cover and Middle Cabinet EN gt 074 b t B Side gap 0 Gap a between Front Frame and Middle Cabine gt 0 Side gap Gap a between Front Frame and Middle Cabine gt Ot a Left Right gap 3 Gap between Back Cover and Side AV Back View aa Maud PUE Side AV e Back Cover Gap f between Back Cover and Side AV gt Otf T1 0 Gap g between Back Cover and Side AV gt 0 11 0 Copyright O 2009 LG Electronics Inc All right reserved 9 Internal Use Only Only for training and service purposes 4 Gap between Back Cover and Side Active area 1 Active area of LCD PANEL is in bezel of cabinet 2 Interval between active area and bezel lt
5. 1 1 t DDR 43 3V MULTI MST Li 55 als 12 4433 MULTI MST 1 Jd dg 83 dg ET ig 5 5 S58 C867 dg 19 88 I 0 1uF 10uF m 8 t SPICZ gt move a daa INTE REPE euaddzsszsssusudas 1 00 8450 5101 9 E Hun SET F EE PRIT 1 ADY ps2 0 oo ile 5252 25552 552 5858555525559555552 0082 010 15 AXC 0 8 338 3 355 555 19 0 9 90 oe NL EE ERE S 188 1052 gt 8853 18 1 86 0 DDR 86 gt AVDD 186 un EL 801 I dom TMDS2 2 gt 0 9 184 1 241 256 1 5 052 0 0 GND 13 183 3 3 MULTI Z 1 1 051_ gt 0 18 RXC gt 0 5 181 C803 TMDS1 gt 0 E Ct most 0 4 _ 2_ 005801 1 DDR2 DOSIM 0 01uF spans 1 gt 15 33 IZA pore TMDS1 RXi L 88 0 8 12 17 n RB12 22 scl 18 Pen 5 l most 0 8 174 pe foro Pos 813 22 5 EEP SDA DSt gt 10 20 0082 0080 173 DOR MST 1 vii B840
6. a Gelotstec 50414 m mm um um mm mm um um 0 4 BAL 47 0 0470 49 GPIO15012C_OUT_MUTE 144 EN RBS7 47 C836 0 04 5 vopc 4 GAINX4 4 amp 12V AUDIO 1 TVMAN 1 al pp rl i 5 33 4 4 850 H 53 140 1 1 4 139 MAN RBZSA a47 86 0 1 5 138 1 B876 47 869 36 1 SIDE LIN C856 2 28 sal aus 135 7 MNT VOUT TI i lt 103904 112 4 amp 133 100 MNT R AVP j B88 yy 100 7 131 8810 E RBG 100_ 63 uon 0 1 RM 100_ ad 2 E EENE 1 E 3835383853538485 nee See enh E ean EE paue a 93993995333399 SESSSHSSSSSRE 24V SMALL 15V E 2 Lo 12V SMALL 15V NON 19 22 8 88452 23 23 E aa z 8800 R8001 EQ 39o4 r112 NON 19 22 3 5 2 E 4 R8037 RL ON a3 Ed 0 8 ug ES d READY lo 655 PONER DET 2000400 000000 DI 802 Abia 5964 5 l Yy de 33 33 225849 988388 88 88555 25 65 gg 88
7. gt TMDS2_RX1 gt IMDS2 1 IMDS2 RX2 HPD MST 1 gt TMDS2_RX2 35V MULTI 5 1 79300 Y 51845 PELLE so R396 100 4 11 1 3904 112 3 814 2 CAT24CO2WI GT3 OPTION SW HPD USE SW HPD Default MST HPD USE MST HPD MULTI HDMS 302 KDS1848 e 83291 00 SCL R317 100 WP JP304 JP305 gt 6 RXC gt 10093 gt TMDS3_RXO gt IMDS3 0 gt IMDSS3 1 gt IMDS3 1 gt TMDS3_RX2 gt TMDS3_RX2 KJA ET 0 0032 JK303 4 3 3V_MST R315 or 8316 READY CEC C 8313 C CEC 1 0304 SEE BRE RR THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC sesodund pue 104
8. 483V MULTI MST 33 NON 19 22 26 20 POWER 1407 FTO 8409 0 READY L L I L L L 19 22 26 P405 0 1 sway 16v ENON 19 22 26 0 1 1 19 22 26 1408 BG1608B121F 1405 BG1608B121F SUB 1 C402 100pF 50V 19 22 26 IR 19 22 26 CONTROL HK 19 22 26 KEY1 y y y 4 19_22_26 1400 BG1608B121F 1401 BG1608B121F EIE e gt 19 22 26 19 22 2 z C40 o 100pF 50V 01 19 22 M EY 19 22 26 P404 SMAW 200 03 ran 45V 12V LCD 05 515 NON 419 0 A B4 NON 22 27 FHD TXCE1 TXCE1 TXCE2 TXCE2 TXCLKE TXCLKE TXCE3 TXCE4 TXCE4 HD 26 32 37 42 4 3 3V_MULTI_MST R401 TXCO0 NON 425 0 0 B4 NON 297 FHD TXCO1 TXCO1 TXCO2 R402 18 or 52 shar 17 PANEL WAFER TXCE0 TXCEO TXCE1 TXCE1 TXCE2 TXCE2 TXCE3 TXCE3 TXCE4 TXCE4 TXCLKE TXCLKE TXCLKO TXCLKO TXCO0 TXCO0 TXCO1 2 2
9. North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com CHASSIS LP91A MODEL 26LH20R 26LH20R MA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL 5 CONTENTS 2 PRODUCT SAFETY ancora ANE aM FREE UNE 3 e MT 6 ADJUSTMENT INSTRUCTION 11 TROUBLE SHOOTING 16 21808 9 5612711 19 EXPLODED VIEW E 20 A A Copyright O 2009 LG Electronics Inc All right reserved 8 LGE Internal Use Only Only for training and service purposes SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and Exploded View It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock Fire or other Hazards Do not modify the original design without permission of manufacturer General Guidance An isolation Transformer should always be used during the servicing of a receiver
10. 1 Required Equipments Remote controller for adjustment MSPG 925F MSPG 1025 MSPG 3233 Pattern Generator 2 Process 1 Change the Input to RGB mode 2 Input the PC 1024x768 60Hz Horizontal Color Bar signal into RGB MSPG 925F Model 60 Pattern 65 3 Press ADJ key on R C for adjustment 4 Enter Password number Password is 0 0 0 0 5 Select 0 ADC calibration RGB by using D E and press ENTER A 6 ADC adjustment is executed automatically 7 When ADC adjustment is finished this OSD appear 13 LGE Internal Use Only 4 6 Input Tool Option Area Option TOOL Option Area Option change and AC off Before PCBA check you have to change the Tool option Area option and have to AC off on Plug out and in If missing this process set can operate abnormally 4 6 1 Profile Must be changed the option value because being different with some setting value depend on module maker inch and market 4 6 2 Equipment adjustment remote control 4 6 3 Adjustment method The input methods are same as other chassis Use IN START Key on the Adjust Remocon If not changed the option the input menu can differ the model spec Refer to Job Expression of each main chassis ass y for Option value Never push the IN STOP KEY after completing the function inspection 4 7 Check SW Version 1 Method 1 Push In star key on Adjust remote controller 2 SW V
11. R202 100 I E gt PCR 1 ODIODE 1 1 Q 1 20 gt DSUB SDA 1 m gt PC_G I R203 100 I I E R207 1 68 essen ue I 40 gt 005 2 i R213 PC B L 8208 I 3 3V_MST 4O im in ta 82 n2 e 005 4JK AK RR 4 gt TXD ADUC30S03010L_AMODIODE ie wI 1 7 16 sep SIDE AV 1 JK201 PPJ218 01 SOUND JK 03 TC OSIDE V E SPRING au 1 PC AUD R de D 0202 231 R235 TERMINAL1 av 220K 1x z R224 10K 9206 8226 SPRING 30 220K 12K l PC AUD L T SPRING R225 0203 R232 R236 pr E e SEEN B TERMNA2 1 E i T 2 SHIELD PLATE lose to SID CUSEE 7 USB t Non OCP 445V USB P E D D 45VST MST q 12201 i P i AM o E n DW ith 1 CAT24C02WI GT3 D 202 READY 8238 RU OU 1 gt READY i READY I REAR USES It s possibel to 27 470hm L200120HM DDC WP uss DLN L B R230 R201 8210 208 209 USB DLP 8 READY T cP TF gie DSUB SCL REAR USB 5 1 E
12. 0 01uF C913 0 01uF C914 0 01uF C917 0 01uF 0 01uF _0 01uF__0 01uF l 0 01uFZ 2O O1uF DDR2_MCLK DDR2_MCLKZ DDR2_CKE Saa ee poe i 1 DDR2 ODT DDR2_RASZ DDR2_CASZ DDR2_WEZ DDR2 DQSOP DDR2 DQS4P DDR2 DOMO DDR2_DQM4 4 2 _ DDR2 DOSHMI 9 9 9 DDR2 MEMORY THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF 15 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THEN SYMBOL MARK OF THE SCHEMETIC 09 pue JUO 6002 o 1 sesodund 92 esf 397
13. NOISE 0101 RT1C3904 7112 S VIDEO China Model gt SIDE C PS014 01 T 30V S VIDEO per 3 3 MULTI Jo eem lt gt S VIDEO DET o9 je e mio 1 SIDE Y zug uneo THE NSYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES le SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE NSYMBOL MARK OF THE SCHEMETIC esf 397 sesodund pue 104 penesead 6002 o 1 esf 397 ER E E ER ES lt lt lt EN lt lt lt I E I RS 232C Cl ITEM 5 MULTI i JK200 KCN DS 1 0088 JK202 em en 0207 3 3V_MST 05 1 0089 6630TGA004K m m x ELE EL L IC200 7 eg Rg I Lisig ST3232CDR Q 10 a 8 a i
14. read and follow the SAFETY PHECAUTIONS 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 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 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 Do not spray chemicals on or near this receiver or any of its assemblies 4 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 applicator 1096 by volume Acetone and 9096 by volume isopropyl alcohol 9096 9996 strength CAUTION This is a flammable mixture Unless s
15. 2 0 mm C D 2 0 mm A Interval between left of active area and bezel B Interval between right of active area and bezel C Interval between top of active area and bezel D Interval between bottom of active area and beze Active Area gt Bezel Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes 10 Side View h S44 ac Control Braket Back Cover Gap h between Back Cover and Control Bracket gt h T08 Internal Use Only ADJUSTMENT INSTRUCTION 1 Application Range E E eee as g 1 Execute 5 Tool program the main window Mstar ISP This specification sheet is applied to all of the LCD TV utility Vx x x will be opened LP91A B C D chassis 2 Click the Connect button and confirm Dialog Box 2 Specification 1 Because this is not a hot chassis it is not necessary to use an isolation transformer However the use of isolation transformer will help protect test instrument 2 Adjustment must be done in the correct order 3 The adjustment must be performed in the circumstance of 25 5 of temperature and 65 10 of relative humidity if there is no specific designation 4 The input voltage of the receiver must keep 100 220V 50 60Hz 5 Before adjustment execute Heat Run for 5 minutes at RF no signal 3 Adjustment items 3 1 PCB assembly adjustment items 1 Downl
16. 22 26 E 12V 8 11005 11006 2 120 120 19 22 HD 22 FHD 32 Sharp 26 27 32 LPL 37 42147152 Toe cus SI4925BDY Inverter 33K TuP2V EBK32753101 Close to 01003 R1065 L1007 19 22 MLB 201209 0120P N2 i K 5 12V LCD PWM Dim 19 OLCMLO0003B 581050 e 1 PANEL A Dim gt 6 MULTI R1054 4 7K moo e NON SHARP 32852 40 T gt STATUS 25 301053 21043 POWER SW RTTCOSO4 TTI2 Sharp 527400 TRON SHARP 52 auo 1014 V MO 32 42 47 571 1064 0 DC DC CONVERTER 11010 e VO 0 8 1 R1 R2 5 MLB 201209 0120P N2 f TUNER 81041 45V MULTI C1000 C1020 1025 2 ose cw o 12V 55V TUNER USB T R1059 READY 81058 2100 251023 10K 32 42 47 57 SHARP 32 NON 19 22 D M d Fi 1044 1K NON 32 42 47 57 DC 81057 16190 2212DN LED Block bc ee 01045 egi 100 PC OUT i R1018 E e AN MING iid 8 NON 19 22 2 DISABI PC ENABLE 45VST_MST 45V MULTI TORIS RUE V peas ee 12 11009 3 6uH 0 I DIM L1008 SA SV R10 10 RY 2 104 ev CIC21J801NE R1012 6 OPC ENABLE USE LGD Module P 12V SMALL 15V NON d 22 1 EN THE NSYMBOL MARK OF THIS
17. FF FF 00 Ca 01101 01 01 0010 30 12 01 03 Oh 46 27 70 OF 57 49 72 25 4020 11 49 48 Al 08 00 01 80 45 40 61 40 Ol 01 01 01 0030 01 01 01 01 01 01 14 36 80 70 38 1F 40 30 20 0040 35 00 zb 17 00 00 bh 18 21 50 40 51 00 30 0050 40 08 35 00 DS 00 21 00 12 DO 00 B FC 00 45 0060 47 20 44 04 20 20 20 20 20 20 20 00 00 00 FD 0070 00 34 10 44 OF 00 04 20 20 20 20 20 20 00 46 lt HDMI 1 256Bytes gt Addy 00 01 02 03 04 05 06 OF 08 09 DA 08 OD 0000 OF PF FP FP 00 60 Fh 0010 1 12 01 03 80 46 97 7B DA DS 80 67 49 9 0020 11 47 dE 1 00 45 40 OL 01 Gl 0 0016 61 01 01 01 01 01 00 72 51 61 040 55 00 C4 21 00 00 1B 21 61 00 1E 30 0050 48 15 DU B 77 21 00 10 00 00 00 dc 0060 47 20 54 55 20 20 20 20 20 20 20 00 00 00 FD 0070 00 34 1C 44 OF 00 04 20 20 20 20 20 20 01 0000 52 03 25 84 07 01 15 OF 03111 42 43 14 05 0090 20 2 LF 10 23 09 07 OF 1 03 00 00 07 UC 00 0646 10 00 MO 1E 00 01 iD 00 00 51 60 1C 20 40 00 35 0969 00 BC 38 21 00 00 Sc DO 20 EO 2D 10 10 1000 96 OO 14 21 00 00 10 OA AO 14 51 FO 15 00 24 7c 4J 00 C4 0E 21 00 90 01 1D 00 10 71 10 16 20 t8 26 25 00 C4 BE 21 00 00 SE 00 00 00 00 00 DO 00 00 00 00 00 Of 00 00 00 00 00 lt A lt HDMI 2 256Bytes gt Addr 00 01 02 n3 04 05 06 07 08 09 00 DC OD
18. PN SCL SDA SIDE L SIDE R 500mVrms SIDE V 1Vpp TX Serial Flash 8MByte EEPROM 256K lt gt DDR2 512MB NT PWM P3100L gt OUT gt 1 OUT INVdSVIG 19019 EXPLODED VIEW Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer sge Set Stand HU Er CST RR RETE EM ICT AP 20 LGE Internal Use Only pue JUO pamasa 724 6002 o sesodund 92 esf 397 43 3V MULTI MST H W OPTION Small FHD
19. SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE ASYMBOL MARK OF THE SCHEMETIC d3MOd sesodund pue 104 6002 o 1 esf 397 gt SPK_L 1 8V ERU 16V NTP MLB 201209 0120P N2 m gt 1 8V_AVDD t OLCML00003B Reo4tice12 C6420615 617 L605 res our POUR FOIF 25 3 INVI E 120 ohm 58 v gt 18V_DVDD C618 MLB 201209 0120P N2 I9 01uF OLCMLO00038 t 608 lt 8611 I a L904 Ses BA C619 25 8580 oF ir 0 47 001 0669 lt 2623 R610 8638 Lo 12 212 i cere C611 22000pF 4 22000 1 6618 11 97 ul 270 1 2z2z282B82g 31312 SW RESET 04 MULTI PW SW 625 2200 25 MCLK 600 preme x MULTLMST NTP 3100L V 630 1 8 AVDD Caos 4 6603 01 C634 D T 390pF 1 100pF C626 C62 8600 3 3K 1 AMIE TO TUE TO TUE eei 12 1 1 8V_AVDD lt LA LIU 1
20. gg t m MULTI PW SWI 12V VDDC HMB Fey 7 LFW y m 3 3V MULTI de 5 nes AT530AC1 ME MULTI 433V MULTI MST 1 45VST L SYS RESET y 1 5 Mr L 2K 1 18 8 88000 042 5 ER 8 IE m 3 1 1 1 RESET om THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC HVISIN OLLVINSHOS s sod nd pue 104 6002 o 1 esf 397 DDR2 D O 15 DDR2 010 151 1 DDR V REF x 50V io C905 C918 0 01uE 1000p F 0 HYB18TC512160B2F 2 5 DDR2 A O 12 DBH2 DIT4 Close to DDR2 IC 1 8 DDR DDR2 BAO DDR2 BA1 C906 0 01uF C907 0 01uF C908 0 01uF C909 0 01uF C910 0 01uF C911 0 01uF C912
21. spec Copyright O 2009 LG Electronics Inc All right reserved 15 Only for training and service purposes LGE Internal Use Only LED indicator off Check 24V 12V 5 2V of Power B D Check Output of 1001 1003 1007 Pass Fail p Pass Check P307 Connector No Raster Pass Check LED status On Display Unit Check Panel Link Cable Or Module Check Inverter Connector Or Inverter Pass Check Output of IC802 TROUBLESHOOTING A PROCESS Fail Check short of or Change Power B D Check short of IC1001 1003 1007 Re soldering or Change defect part of IC1001 IC1003 1007 Change 1002 01003 Change LEDAssy B Process Repeat A PROCESS Change Panel Link Cable Or Module Change Inverter Connector Or Inverter Change IC802 Change Module gt Check LVDS Cable Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes Fail 16 LGE Internal Use Only No Raster on Signal Check Input source Cable and Jack Check the Input Output Of J104 Re soldering or Fail Change the defect part Check the Input Output Of IC100 Re soldering or Fail Change the defect part
22. 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 4 LGE Internal Use Only Remove Replacement Some chassis circuit boards 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 straighten each 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 Replacement 1 Carefully insert the replacement IC in the circuit board 2 Carefully bend each 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 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 th
23. whose chassis is not isolated from the AC power line Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks It will also protect the receiver and it s components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation If any fuse or Fusible Resistor in this TV receiver is blown replace it with the specified When replacing a high wattage resistor Oxide Metal Film Resistor over 1W keep the resistor 10mm away from PCB Keep wires away from high voltage or high temperature parts Before returning the receiver to the customer always perform an AC leakage current check on the exposed metallic parts of the cabinet such as antennas terminals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to the chassis the measured resistance should be between 1 and 5 2MQ When the exposed metal has no return path to the chassis the rea
24. yy 290 pore 171 pore pawn 1 0062 170 gt C804 C805 C806 Close to 4 ADDR 169 4 LC as close as possible 0806 0 1uF MSTS9A88ML MATRIX BASIC 8_MDATA 14 168 DDR2 PCR R814 AT CB 26 16 000p GND 10 166 DDR2 EEPROM 3 3 MULTI Hu 0 04 8 12 165 7 DDR2 PCR BRIB pp AZ C847 29 8 164 RRB yA 0825 0 047UF Av DR 1C803 16 DDR2 R8004 CAT2AWCOBW T 4 py 470827 0 0470 3 161 1 4 7K x 160 DDR2 159 1 4 AT C8294 0 04 158 36 voc 5 1s VDDP 3 6 848 0 0 R801 1 uFe 38 6 1058 155 COMP BB32 p47 826 0 0474 39 154 fas i m E 47 43 3V MULTI MST 1 _MU SC CONP2 Y P 153 BOIS 100 58UB 50 a AT 830 pur M VIDEO DET PRI PANEL R8j93 3H 1 SDA SIDE 8804 A47 800 0 047uF 43 150 4 E RS QU gt SIDE RBIS p47 0 047uF 44 149 SW RESET 1 CVBS 8897 42 0881 0 04 4 148 WP SIDE 0 04 46 4 1 1 4 GPIO152112C_OUT_SD 146 R893 471
25. 0 Fail Change the defect part Check the Input Output Of IC800 Fail Pass Repeat A 8 B Process No Sound Check The Input Sourse Pass Repeat A 8 B Process 4 Change Source Input Fail Pass Check The Input Output Re soldering or Of IC600 Fail Change the defect part Check The Speaker Fai 4 Change Speaker Check The Speaker Wire Copyright O 2009 LG Electronics Inc All right reserved 18 Only for training and service purposes Re soldering or Change the defect part Re soldering or Change the defect part LGE Internal Use Only s sod nd eoiwes pue 10 pamasa 5914049913 6002 o 1 6 esf eusaju 391 DM 2 SCL SDA H MD 2400 gt DATA 1 TMDS ROM HDMI1 SCL SDA E P gt HDMI DATA 2 PC Audio L R 700mVrms Audio SCL SDA PC R G B HS VS H R G B HS VS 1 Y Pb Pr 1 0 7Vpp 1 Y Pb Pr 1 0 7Vpp I n gt COMP2 Y Pb Pr 1 0 7 gt UIIN RIN Comp2 L R 500mVrms OMP2 LIN RIN t AV1_VIN MNT_VOUT AV1_LIN RIN MAIN SCALER MNT_L R OUT TU_MAIN MAIN SUB SCL SDA SIF SIF 15 x Rx 5 Vpp gt RXD 5V Digital USB DN
26. 2 o 1 esf 397 TU500 22030 TUNER Near the pin gu eme 10505 0506 210509 T 16V 100uF16 100uF16 100uF 16V TUNER M SDA L501 L501 1 M SCL 3 120 ohm 8506 0 Ohm ID MAIN R507 READY 220 0502 ISA1530AC1 LC gt MAIN SIF SHIELD THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC NTSC TUNER SHIELD TU500 1 TAFT H203F GND 1 B 5V RF_AGC TP 3 3V OPT GND 2 MOPLL AS V OUT A OUT SIF OUT H3Nf L s sod nd pue 104 6002 o 1 esf 397 25638755 2 5V_HDMI_2 8903 1 CAT24CO2W GT3 35V MULTI 35V 2 Fitis e e 3 moe uum DDC WP SCL R304 100 SDA 305 1 00 pem gt gt 1 092 gt MDS2 0 gt IMDS2 0
27. 4 TXCO4 dOBIT FHDM 7K X 8BIT HD X 0 8BIT FHD X 0 0 X 52 sharp X 32 sharp X 8BIT FHD 22 27 P402 FF10001 30 45V_ 12V LCD P403 5 1 2V_LCD I A SMW200 28C e l e TXCLKE TXCLKE TXCE3 e TXCE2 TXCE2 TXCLKE TXCLKE TXCE1 TXCE1 TXCE2 e TXCEO TXCEO TXCE1 TXCE1 I TXCEO TXCEO 9 e orc oureur OUT Mm cm External 3V MULTI MST THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC GLO SdA1 LG Electronics Inc Feb 2009 P NO MFL60021514 Printed in Korea
28. 8 DVD 0604 10uF L 16V 2888 882 22 e 228 DVDD C614 C629 22000pF 10610 10uF16V I9 86730 8218 fofos lt MULTI PW SW 021002 of N 8 501 B 600 SMAW250 04 ao o go SPK El Iw O 5 e e 2 SPK L cess mE THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC SPK L AMP GAIN X 4 12V AUDIO IU RT1C3904 T11 MNT LOUT 412V AUDIO oT SPK R 1 6607 NON HOTEL R613 10K 6800pF R605 C63 33pF 4 7K MNT_L_AMP nti HOTEL 5 613 12 A 12V AUDIO C633 33pF R616 1 OK HOTEL L Chinese Hotel Option AMP MUTE HOTEL 16V NTP C AUDIO 33 MULTI MST HOTEL lt HOTEL 3 sesodind pue 104 pantasa 600
29. A gt DSUB_SDA SIDE US IA A ates eh THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC sesodund pue 104 6002 o 1 esf 397 IR Non 19 22 26 CONTROL KEY Non 19 22 26 NON_19_22 26 400 12507WS 12L 1411 500 19 22 26 1410 500 ohm 9 22 26 NON 19 22 26 1403 _ 120 TXCE0 TXCEO TXCE1 TXCE1 TXCE2 TXCE2 TXCE3 TXCE3 TXCE4 TXCE4 TXCLKE TXCLKE TXCLKO TXCLKO TXCO0 TXCO0 TXCO1 TAETXCO2 TXCO2 TXCO3 TXC03 TXCO4 TXCO4 SUB SCL SUB SDA R420 4 7K 433V MST R421 4 7K gt NON 19 22 26 1406 120 0 gt KEY2 27 16 5VST 1 n m MST NON 19 L C411 F 408 INSR io 22 1402 120 BIG 20400 um ST 3 3V LH NON 19 22 26 nu WE
30. Check RGB EDID Data Check the Input Output Of IC800 gt Re soldering Change the defect Repeat A amp B Process No Raster on COMMPONENT Signal Check Input source Cable And Jack Check The Input Outpu Of JK101 Re soldering or Fail Change the defect part Check the Input Output Of IC800 Repeat A amp B Process Re soldering or Change the defect part Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes No Raster on HDMI Signal Check Input source Cable And Jack heck the Input Outpu Of JK301 JK302 JK303 Pass heck the Input Outpu Of IC300 IC301 JK30 Check the Input Output Of IC800 Repeat A amp B Process 47 Re soldering or Fail Change the defect part Fail Re soldering or Change the defect part Check HDMI EDID Data Re download HDCP Re soldering or Fail Change the defect part LGE Internal Use Only No Raster On AV Video S Video Signal Pass Check Input source Cable And Jack Pass Signal TV RF Signal Check Input source Cable And Jack Re soldering or Check The Input Output Of JK101 JK201 Change the defect part Check The Input Output Of TU500 Check the Input Output Re soldering or Of IC80
31. OF OF 0000 00 FF FF 00 Fh 3C Ol 01 01 0010 10 12 Gi DJ 00 46 27 70 0A D 10 57 47 75 23 0020 11 49 48 21 00 4 40 01 01 61 40 61 01 01 01 0030 01085 01101 01 01 04 22 00 Fe 51 00 20 28 0040 55 00 CA 21 00 00 71 50 40 51 00 LE 30 0050 48 862 35 00 7 21 00 00 1C 00 00 00 00 4 0060 47 20 54 55 0 26 20 20 20 20 20 00 00 FD 0020 00 14 IC 0090 2022 IF 10 Mhan z 00 0 0000 0 21 0000 96 00 13 0000 og 26 7C 43 17 id 20 50 00 00 00 00 CRAT Sao Sa gg TE e moa e ER ge Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes 4 5 ADC Calibration 4 5 1 ADC Calibration Component Using External pattern 1 Required Equipments Remote controller for adjustment MSPG 925F MSPG 1025 MSPG 3233 Pattern Generator 2 Process 1 Change the Input to Componenti or 2 mode 2 Input the Component 4801 960 2 100 Color Bar YPbPr signal into Component1 or 2 MSPG 925F Model 209 Pattern 65 3 Press ADJ key on R C for adjustment 4 Enter Password number Password is 0 0 0 0 5 Select 0 ADC calibration Component by using D E CH and press ENTER A 6 ADC adjustment is executed automatically 7 When ADC adjustment is finished this OSD appear 4 5 2 ADC Calibration RGB Using External pattern
32. TV NOT SUPPORT Specification No Remark Resolution H freq kHz V freq Hz Pixel Clock MHz 3 2 mvao os swa 5 4 SES 4 VESNNGN 5 woe _ s arre ws VESNWGN VESAQWXGA vsvio sms 10900 XGA Only HO Model s seio 66587 19850 Only FHD Model 10 HDMI Input 10 1 PC Spec out but it can be shown the picture at only HDMI DVI IN 1 DVI to HDMI Cable Vr He Pel cook 1 xp 259 2 oeo 400 VESNSNON _ 4 mox 795 VESNWXON 6 47 7 d WES s 1920x1000 1966259 10 2 DTV Mode Specification No Remark Resolution H freq kHz V freq Hz Pixel Clock MHz 4 8 SDVANP 0000 s sows _ 6 moxsts sas 2 mox s mwe 10 28155 sia wa
33. ding must be infinite An other abnormality exists that must be corrected before the receiver is returned to the customer Copyright O 2009 LG Electronics Inc All right reserved sx Only for training and service purposes Leakage Current Hot Check See below Figure Plug the AC cord directly into the AC outlet Do not use a line Isolation Transformer during this check Connect 1 5K 10watt resistor in parallel with a 0 15uF capacitor between a known good earth ground Water Pipe Conduit etc and the exposed metallic parts Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms volt or more sensitivity Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each exposed metallic part Any voltage measured must not exceed 0 75 volt RMS which is corresponds to 0 5mA In case any measurement is out of the limits specified there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer Leakage Current Hot Check circuit AC Volt meter Good Earth Ground such as WATER PIPE To Instrument s CONDUIT etc exposed METALLIC PARTS 1 5 Kohm 10W When 25A is impressed between Earth and 2nd Ground for 1 second Resistance must be less than 0 1 Base on Adjustment standard LGE Internal Use Only SERVICING PRECAUTIONS CAUTION Before servicing receivers covered by this service manual and its supplements and addenda
34. e 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 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 com
35. ed to prevent potential shock reasons prior to applying power to the Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes 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 other safety precautions 8 Minimize bodily motions when handling unpackaged replacement ES devices Otherwise harmless motion such as the brush
36. ersion check Check SW VER V3 xx LH20 Wer LEE LFL LIHO BHP CHE Ceo XD cwm impor OF Cope r1 TOH June Cu THOHH E Cur 3 a TE fy ar Corr Sui Pe oe Em Pu HOPE Paral Contra aware 2 5 White Balance adjstment 5 1 Overview 1 Purpose Adjust the color temperature to reduce the deviation of the module color temperature 2 Principle To adjust the white balance without the saturation Fix the one of R G B gain to 192 default data and decrease the others 3 Adjustment mode Three modes Cool Medium Warm 5 2 Required Equipment 1 Remote controller for adjustment 2 Color Analyzer 100 or CA 210 or same product LCD TV ch 9 should be used in the calibrated ch by CS 1000 3 Auto W B adjustment instrument only for Auto adjustment Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes 5 3 Connecting diagram of equipment for measuring For automatic adjustment iD pem pli Lig ROB D LP91A D Support RS 232C 8 126 DDC Communication White Balance Mode 1 Enter the adjustment mode of DDC Set command delay time 50ms Enter the DDC adjustment mode at the same time heat r
37. f 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 race 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 5 LGE Internal Use Only SPECIFICATION NOTE Specifications and others are subject to change without notice for improvement 1 Application range 3 Test method This spec sheet is applied to LCD TV used LP91A chassis 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification 2 Specification EMC CE IEC Each part is tested as below without special appointment 1 Temperature 25 5 77 9 F CST 40 5 C 2 Relative Humidity 65 10 3 Power Voltage Standard input voltage 100 240V 250 60Hz Standard Voltage of each products is marked by models 4 Specification and performance of each parts are followed each drawing and specification by part number in acco
38. gt Enter 0000 Password 6 Select 3 W B ADJUST 7 Enter the W B ADJUST Mode 8 Stick the sensor to the center of the screen and select each items Red Green Blue Gain and Offset using D E CH key on R C 9 Adjust R G B Gain using F G VOL key on R C 10 Adjust three modes all Cool Medium Warm Fix the one of R G B gain and change the others 11 When adjustment is completed Enter COPY ALL 12 Exit adjustment mode using EXIT key on R C LGE Internal Use Only First adjust the coordinate far away from target value x y 1 x y gt target i Decrease the 2 target 1 First decrease the B ii Decrease the one of the others 3 X target y target i First decrease B so make y a little more than the target ii Adjust x value by decreasing the R 4 target gt target 1 First decrease B so make x a little more than the target ii Adjust x value by decreasing the G 4 Standard color coordinate and temperature when using the 100 or CA210 equipment Mode y Temp UVA 0 276 0 002 0 283 0 002 11000K 0 000 0 285 0 002 0 293 0 002 9300K 0 000 0 313 0 002 0 329 0 002 6500K 0 003 To check the Coordinates of White Balance you have to measure at the below conditions Picture Mode User 1 Dynamic Contrast Off Dynamic Colour Off If you miss the upper condition the coordinates of W B can be lower than the
39. ing 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 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 500 600 F 2 Use an appropriate gauge of RMA resin core solder composed of 60 parts tin 40 parts lead 3 Keep the soldering iron tip clean and well tinned 4 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 circuit board 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 c Quickly move the soldering 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
40. oad the MSTAR main software IC800 Mstar ISP Utility 1 Using D L Jig 2 Using USB Memory Stick 2 ADC Calibration RGB Component 3 Input Tool Option Area option 4 Check SW Version 4 PCB assembly adjustment method 3 Click the Config button and Change speed 2 Speed setting 350Khz 400Khz 4 1 Mstar Main S W program download 4 1 1 Using D L Jig 1 Preliminary steps 1 Connect the download jig to D sub RGB jack LH20 LH30 pee Dee ck AA C al mea ri pra eX E 4 Read and write bin file Click 1 Read tab and then load download file XXXX bin by clicking Read Copyright O 2009 LG Electronics Inc All right reserved Internal Use Only Only for training and service purposes 5 Click 2 Auto tab and set as below 6 Click 3 Run 7 After downloading you can see the 4 Pass message Fm Eee o mo omen aim Elem CH ue Pep Hx quomm ng mmol mem om A 4 1 2 Using the Memory Stick USB download Service Mode 1 Insert the USB memory stick to the ISB port 2 Automatically detect the SW Version S W download process is executed automatically 3 Show the message Copy the file from the Memory 4 After Finished the Download Automaticall
41. pecified otherwise in this service manual lubrication of contacts in not required 5 Do not defeat any plug socket voltage interlocks with which receivers covered by this service manual might be equipped 6 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 7 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 8 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 semiconductor 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 remov
42. ponents and the circuit board to prevent excessive component temperatures Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes 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 At Other Connections Use the following technique to repair the defective copper pattern at connections other than IC Pins This technique involves the installation o
43. rdance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 4 Electrical specification 4 1 General Specification y 26 wide Color Display Modus Resowton 1366768 OC A 3 HB mayoz Storage Environment Temp 20 60 deg Input Voltage 100 240 50 60Hz 120W 26 HD Coating Copyright O 2009 LG Electronics Inc All right reserved 6 LGE Internal Use Only Only for training and service purposes 5 Chroma amp Brightness Optical 5 1 LCD Module the Color Coordinates check condition 50cm from the surface Full White Pattern Picture mode Vivid We us wwe _ Luminance 2 W O mode View angle RIL UD EN Color Coordinates White Typ LGD 26 HD 0 03 uu 292 P A LC260WXN SBA1 RED 637 P 333 Green 290 607 P 145 0 061 061 Hie a 8 Component Video Input Y PR Specification No Remark Resolution H freq kHz V freq Hz Pixel Clock MHz avs mz ____ ESE Ls iso ooo ue _ 1920 1080 56 25 148 5 HDTV 1080P 4 1920 1080 67 432 59 94 148 350 HDTV 1080P 5 1920 1080 67 5 60 00 148 5 HDTV 1080P Copyright O 2009 LG Electronics Inc All right reserved f LGE Internal Use Only Only for training and service purposes 9 RGB 9 1 Analog PC RGB D
44. un mode when pushing the power on by power only key Maintain the DDC adjustment mode with same condition of Heat run gt Maintain after AC off on in status of Heat run pattern display 2 Release the DDC adjustment mode Release the adjust mode after AC off on or std by off on in status of finishing the Hear run mode Release the Adjust mode when receiving the aging off 3 00 00 from adjustment equipment Need to transmit the aging off command to TV set after finishing the adjustment Check DDC adjust mode release by exit key and release DDC adjust mode 3 Enter the adjust mode of white balance Enter the white balance adjustment mode with aging command F3 00 FF Luminance min value is 150cd in the Cool Medium Warm mode For LCD 5 3 Adjustment of White Balance for Manual adjustment 1 Color analyzer CA100 CA210 should be used in the calibrated ch by CS 1000 2 Operate the zero calibration of the CA100 or CA 210 then stick sensor to the module when adjusting 3 For manual adjustment it is also possible by the following sequence 1 Select white pattern of heat run by pressing POWER ON key on remote control for adjustment then operate heat run longer than 15 minutes If not executed this step the condition for W B may be different 2 Push Exit key 3 Change to the AV mode by remote control 4 Input external pattern 85 white pattern 5 Push the ADJ key
45. y DC gt On 5 Check The update SW Version Copyright O 2009 LG Electronics Inc All right reserved Only for training and service purposes 4 2 Adjust tool area option Adjust tool area option refer to the BOM 4 3 Adjust tool area option Adjust tool area option refer to the BOM 4 4 EDID D L method Recommend that don t connect HDMI and RGB D SUB cable when downloading the EDID If not possible recommend that connect the MSPG equipment There are two methods of downloading the edid data 4 4 1 1st Method EDID datas are automatically downloaded when adjusting the Tool Option2 Automatically downloaded when pushing the enter key after adjusting the tool option2 It takes about 2seconds 4 4 2 2nd Method Caution Must be checked that the tool option is right or not If tool option is wrong hdmi edid data could not be downloaded well 1 Press the ADJ key 2 Move to the EDID D L and Press the right direction key G 3 Press the right direction key G at Start 4 After about a few seconds appear then compele 4 4 3 RS 232C command Method 1 Command AE 00 10 Caution Don t connect HDMI and RGB D SUB cable when downloading the EDID If the cables are connected Downloading of edid could be failed 12 LGE Internal Use Only 4 4 4 EDID data 1 HD MODEL Analog RGB 128bytes gt iir 00 01 62 03 04 05 06 07 08 09 0 00 GE OF 0000 00
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