LG 32LD840 Service Manual Download Page 2

Page: 2 / 66

LGE Internal Use Only

- 2 -

CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY ................................................................................. 3

SPECIFICATION ....................................................................................... 6

ADJUSTMENT INSTRUCTION .............................................................. 10

EXPLODED VIEW .................................................................................. 18

SVC. SHEET ...............................................................................................

Summary of Contents for 32LD840

Page 1: ...READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LJ03B MODEL 32LD840 32LD840 SA North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO MFL63261818 1101 REV01 ...

Page 2: ...ht LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 EXPLODED VIEW 18 SVC SHEET ...

Page 3: ...ck 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 t...

Page 4: ... 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 bu...

Page 5: ...e 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...

Page 6: ... without special appointment 1 Temperature 25 ºC 5 ºC 77 ºF 9 ºF CST 40 ºC 5 ºC 2 Relative Humidity 65 10 3 Power Voltage Standard input voltage AC 100 240 V 50 60 Hz 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 accordance with BOM 5 The receiver must be operated for about 20 minute...

Page 7: ...50 Y 0 334 0 335 0 334 TBD GREEN X 0 292 0 291 0 290 TBD Y 0 607 0 603 0 606 TBD BLUE X 0 146 0 146 0 146 TBD Y 0 056 0 061 0 058 TBD WHITE X 0 279 Y 0 292 4 Color coordinate uniformity N A 5 Contrast ratio 1000 1 1400 1 32LD650 NORMAL 1100 1 1500 1 42 55LD650 1200 1 1500 1 47LD650 DCR 50 000 1 70 000 1 6 Color Temperature Cool 0 267 0 269 0 271 Test Condition 0 271 0 273 0 275 85 Full white patte...

Page 8: ...148 5 HDTV 1080P 14 1920 1080 67 50 60 148 50 HDTV 1080P 15 1920 1080 67 432 59 94 148 352 HDTV 1080P 16 1920 1080 27 00 24 00 74 25 HDTV 1080P 17 1920 1080 26 97 23 976 74 176 HDTV 1080P 18 1920 1080 33 75 30 00 74 25 HDTV 1080P 19 1920 1080 33 71 29 97 74 176 HDTV 1080P 8 RGB Input PC No Resolution H freq kHz V freq kHz Pixel clock Proposed PC DDC 1 640 350 31 468 70 09 25 17 EGA X 2 720 400 31 ...

Page 9: ... 1080P O DTV 1 720 480 31 50 60 27 027 SDTV 480P 2 720 480 31 47 59 94 27 00 SDTV 480P 3 720 576 31 25 50 13 5 SDTV 576P 4 1280 720 37 5 50 74 25 HDTV 720P 5 1280 720 45 00 60 00 74 25 HDTV 720P 6 1280 720 44 96 59 94 74 176 HDTV 720P 7 1929 1080 28 125 50 74 25 HDTV 1080I 8 1920 1080 33 75 60 00 74 25 HDTV 1080I 9 1920 1080 33 72 59 94 74 176 HDTV 1080I 10 1920 1080 56 25 50 148 5 HDTV 1080P 11 1...

Page 10: ...ou can see 100 Full White pattern In this status you can maintain Heat Run useless any pattern generator Notice if you maintain one picture over 20 minutes Especially sharp distinction black with white pattern 13Ch or Cross hatch pattern 09Ch then it can appear image stick near black level 3 Adjustment Items 3 1 PCB Assembly Adjustment A MAC Address Download A Adjust 480i Comp1 A Adjust 1080p Comp...

Page 11: ...ton and confirm OK Message 4 remove LAN CABLE 4 2 Using RS 232C Adjust 3 items at 3 1 PCB assembly adjustments adjustment sequence one after the order A Adjustment protocol See ADC Adjustment RS232C Protocol_Ver1 0 A Necessary items before Adjustment items Pattern Generator MSPG 925FA Adjust 480i Comp1 MSPG 925FA model 209 pattern 65 Comp1 Mode Adjust 1080p Comp1 MSPG 925FA model 225 pattern 65 Co...

Page 12: ...ion both of Component1 and RGB MSPG 925FA Model 225 Pattern 65 Set Component 1080p mode and 100 Horizontal Color Bar Pattern HozTV31Bar then set TV set to Component1 mode and its screen to NORMAL After get each the signal wait more a second and enter the IN START with press IN START key of Service remocon After then select 7 External ADC with navigator button and press Enter After Then Press key o...

Page 13: ...cable connection Jig Preparing and setting Set instruments and Jig Like pic 5 then turn on PC and Jig Operate DDC write S W EDID write read It will operate in the DOS mode Pic 3 For write EDID data setting Jig and another instruments EDID data for LJ03B D E R Chassis Model name LG TV HDMI 1 EDID table 0x04 0x5A HDMI 2 EDID table 0x04 0x4A HDMI 3 EDID table 0x04 0x3A HDMI 4 EDID table 0x04 0x2A Ana...

Page 14: ... pattern You can select option at Ez Adjust Menu 7 White Balance there items NONE INNER HDMI It is normally setting at inner basically If you can t adjust using inner pattern you can select HDMI item and you can adjust In manual Adjust case if you press ADJ button of service remocon and enter Ez Adjust Menu 7 White Balance then automatically inner pattern operates In case of Inner originally Test ...

Page 15: ...ation key When press G button then set will go to full white mode Adjust at three mode Cool Medium Warm If cool mode Let B Gain to 192 and R G B Cut to 64 and then control R G gain adjustment High Light adjustment If Medium and Warm mode Let R Gain to 192 and R G B Cut to 64 and then control G B gain adjustment High Light adjustment All of the three mode Let R Gain to 192 and R G B Cut to 64 and t...

Page 16: ...O defends on its market using Vol button Caution Don t push The INSTOP KEY after completing the function inspection 6 GND and ESD Testing 6 1 Prepare GND and ESD Testing A Check the connection between set and power cord 6 2 Operate GND and ESD auto test A Fully connected Between set and power cord set enter the Auto test sequence A Connect D Jack AV jack test equipment A Turn on Auto controller GW...

Page 17: ...tment Value default 128 8 2 White balance Value 9 USB DOWNLOAD epk file download 9 1 Put the USB Stick to the USB socket 9 2 Press Menu key and move OPTION 9 3 Press FAV Press 7 times 9 4 Select download file epk file 9 5 After download is finished remove the USB stick 9 6 Press IN START key of ADJ remote control check the S W version 17 LGE Internal Use Only Copyright LG Electronics Inc All right...

Page 18: ...ht LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 10 EXPLODED VIEW 18 SVC SHEET ...

Page 19: ...ck 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 t...

Page 20: ... 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 bu...

Page 21: ...e 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...

Page 22: ... without special appointment 1 Temperature 25 ºC 5 ºC 77 ºF 9 ºF CST 40 ºC 5 ºC 2 Relative Humidity 65 10 3 Power Voltage Standard input voltage AC 100 240 V 50 60 Hz 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 accordance with BOM 5 The receiver must be operated for about 20 minute...

Page 23: ...50 Y 0 334 0 335 0 334 TBD GREEN X 0 292 0 291 0 290 TBD Y 0 607 0 603 0 606 TBD BLUE X 0 146 0 146 0 146 TBD Y 0 056 0 061 0 058 TBD WHITE X 0 279 Y 0 292 4 Color coordinate uniformity N A 5 Contrast ratio 1000 1 1400 1 32LD650 NORMAL 1100 1 1500 1 42 55LD650 1200 1 1500 1 47LD650 DCR 50 000 1 70 000 1 6 Color Temperature Cool 0 267 0 269 0 271 Test Condition 0 271 0 273 0 275 85 Full white patte...

Page 24: ...148 5 HDTV 1080P 14 1920 1080 67 50 60 148 50 HDTV 1080P 15 1920 1080 67 432 59 94 148 352 HDTV 1080P 16 1920 1080 27 00 24 00 74 25 HDTV 1080P 17 1920 1080 26 97 23 976 74 176 HDTV 1080P 18 1920 1080 33 75 30 00 74 25 HDTV 1080P 19 1920 1080 33 71 29 97 74 176 HDTV 1080P 8 RGB Input PC No Resolution H freq kHz V freq kHz Pixel clock Proposed PC DDC 1 640 350 31 468 70 09 25 17 EGA X 2 720 400 31 ...

Page 25: ... 1080P O DTV 1 720 480 31 50 60 27 027 SDTV 480P 2 720 480 31 47 59 94 27 00 SDTV 480P 3 720 576 31 25 50 13 5 SDTV 576P 4 1280 720 37 5 50 74 25 HDTV 720P 5 1280 720 45 00 60 00 74 25 HDTV 720P 6 1280 720 44 96 59 94 74 176 HDTV 720P 7 1929 1080 28 125 50 74 25 HDTV 1080I 8 1920 1080 33 75 60 00 74 25 HDTV 1080I 9 1920 1080 33 72 59 94 74 176 HDTV 1080I 10 1920 1080 56 25 50 148 5 HDTV 1080P 11 1...

Page 26: ...ou can see 100 Full White pattern In this status you can maintain Heat Run useless any pattern generator Notice if you maintain one picture over 20 minutes Especially sharp distinction black with white pattern 13Ch or Cross hatch pattern 09Ch then it can appear image stick near black level 3 Adjustment Items 3 1 PCB Assembly Adjustment A MAC Address Download A Adjust 480i Comp1 A Adjust 1080p Comp...

Page 27: ...ton and confirm OK Message 4 remove LAN CABLE 4 2 Using RS 232C Adjust 3 items at 3 1 PCB assembly adjustments adjustment sequence one after the order A Adjustment protocol See ADC Adjustment RS232C Protocol_Ver1 0 A Necessary items before Adjustment items Pattern Generator MSPG 925FA Adjust 480i Comp1 MSPG 925FA model 209 pattern 65 Comp1 Mode Adjust 1080p Comp1 MSPG 925FA model 225 pattern 65 Co...

Page 28: ...ion both of Component1 and RGB MSPG 925FA Model 225 Pattern 65 Set Component 1080p mode and 100 Horizontal Color Bar Pattern HozTV31Bar then set TV set to Component1 mode and its screen to NORMAL After get each the signal wait more a second and enter the IN START with press IN START key of Service remocon After then select 7 External ADC with navigator button and press Enter After Then Press key o...

Page 29: ...cable connection Jig Preparing and setting Set instruments and Jig Like pic 5 then turn on PC and Jig Operate DDC write S W EDID write read It will operate in the DOS mode Pic 3 For write EDID data setting Jig and another instruments EDID data for LJ03B D E R Chassis Model name LG TV HDMI 1 EDID table 0x04 0x5A HDMI 2 EDID table 0x04 0x4A HDMI 3 EDID table 0x04 0x3A HDMI 4 EDID table 0x04 0x2A Ana...

Page 30: ... pattern You can select option at Ez Adjust Menu 7 White Balance there items NONE INNER HDMI It is normally setting at inner basically If you can t adjust using inner pattern you can select HDMI item and you can adjust In manual Adjust case if you press ADJ button of service remocon and enter Ez Adjust Menu 7 White Balance then automatically inner pattern operates In case of Inner originally Test ...

Page 31: ...ation key When press G button then set will go to full white mode Adjust at three mode Cool Medium Warm If cool mode Let B Gain to 192 and R G B Cut to 64 and then control R G gain adjustment High Light adjustment If Medium and Warm mode Let R Gain to 192 and R G B Cut to 64 and then control G B gain adjustment High Light adjustment All of the three mode Let R Gain to 192 and R G B Cut to 64 and t...

Page 32: ...O defends on its market using Vol button Caution Don t push The INSTOP KEY after completing the function inspection 6 GND and ESD Testing 6 1 Prepare GND and ESD Testing A Check the connection between set and power cord 6 2 Operate GND and ESD auto test A Fully connected Between set and power cord set enter the Auto test sequence A Connect D Jack AV jack test equipment A Turn on Auto controller GW...

Page 33: ...tment Value default 128 8 2 White balance Value 9 USB DOWNLOAD epk file download 9 1 Put the USB Stick to the USB socket 9 2 Press Menu key and move OPTION 9 3 Press FAV Press 7 times 9 4 Select download file epk file 9 5 After download is finished remove the USB stick 9 6 Press IN START key of ADJ remote control check the S W version 17 LGE Internal Use Only Copyright LG Electronics Inc All right...

Page 34: ...d 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 IMPORT...

Page 35: ...23 NAND_CLE T25 NAND_WEB R24 NAND_RBB U25 SF_MISO W24 SF_MOSI U23 SF_SCK V23 SF_CSB V24 Q101 KRC103S E B C 3 3V_NORMAL NAND_DATA 0 7 NAND_CLE R1046 22 R129 22 HDMI_HPD_4 MDS62110205 GAS2 2 7 5T_GAS R1017 1K FHD R1030 0 COMP2_DET CI_IREQ R1005 2 7K DD EBI_RW POWER_DET R1020 1K FRC M_REMOTE_TX M_REMOTE_RX R1034 2 7K R1040 2 7K OPT NAND_CLE C173 22uF 16V FE_TS_VAL_ERR R191 2 7K HP_DET MDS62110204 GAS...

Page 36: ...P_MDI4 E26 POD2CHIP_MDI5 D28 POD2CHIP_MDI6 D27 POD2CHIP_MDI7 D26 POD2CHIP_MISTRT E23 POD2CHIP_MIVAL E24 CHIP2POD_MCLKO F25 CHIP2POD_MDO0 C27 CHIP2POD_MDO1 C26 CHIP2POD_MDO2 B28 CHIP2POD_MDO3 B27 CHIP2POD_MDO4 A27 CHIP2POD_MDO5 F24 CHIP2POD_MDO6 F23 CHIP2POD_MDO7 E25 CHIP2POD_MOSTRT C28 CHIP2POD_MOVAL A28 VDAC_AVDD2P5 AC18 VDAC_AVDD1P2 AF20 VDAC_AVDD3P3_1 AG20 VDAC_AVDD3P3_2 AG21 VDAC_AVSS_1 AF19 V...

Page 37: ...3uF C110 0 1uF C373 1000pF A1 2V A3 3V C288 1000pF C162 10uF R310 10K C130 0 1uF R2117 0 C2003 0 1uF C164 10uF C371 0 01uF C377 0 01uF RGB_VSYNC C259 1000pF DSUB_B C106 0 1uF A1 2V R312 75 1 C159 1000pF R166 75 1 C156 0 1uF SIDE_COMP_Pr C356 0 1uF 16V C383 1000pF C123 0 01uF D1 8V C272 0 1uF L110 BLM18PG121SN1D C293 0 01uF C266 4 7uF REAR_AV_CVBS C122 4 7uF C169 47pF C147 0 01uF C267 0 01uF C105 O...

Page 38: ...1 8V DDR01_CASb C422 1uF 10V DDR01_BA2 DDR01_WEb DDR1_DQ 0 7 DDR_VTT C462 470pF D3 3V C415 0 1uF C447 10uF AR401 75 R418 10K DDR01_BA0 DDR01_A 0 3 7 13 DDR0_DQ 0 7 004 B6 DDR01_BA2 DDR01_WEb DDR01_A 0 3 7 13 DDR01_BA0 DDR01_ODT DDR01_CKE C442 0 1uF C419 10uF 10V C471 0 047uF C498 0 1uF DDR01_A 0 3 7 13 DDR_VTT C488 0 1uF DDR01_RASb C480 10uF C444 470pF DDR1_DQ 0 7 004 B5 C443 10uF AR404 75 C446 0 ...

Page 39: ... 25V AV_CVBS_DET 9 G3 C1109 27pF 50V R1102 470K R1109 470K SC1_B R1106 0 D1115 5 6V 3 5V_ST C1119 27pF 50V C1121 27pF 50V COMP2_Y C1106 27pF 50V L1104 270nH COMP2_L_IN L1105 270nH L1101 270nH Q1103 MMBT3904 F OPT E B C HP_DET C1107 27pF 50V 3 3V_NORMAL Q1101 MMBT3904 F OPT E B C C1127 100pF D1106 5 5V COMP2_Pr R1122 1K OPT C1131 1000pF 50V OPT C1108 27pF 50V R1123 1K R1104 1K L1100 270nH REAR_AV_C...

Page 40: ...il_V 14 B3 3 3V 13 B2 1 2V 5 AS 12 GND 11 VIDEO 2 BST_CNTL 10 NC 4 NC RF_AGC 1 ANT_PWR OPT 17 DIF_1 N 9 SIF 8 NC IF_TP 3 B 5V 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 P 19 SHIELD TU2600 3 TDTJ S031D AU_Asia_Tuner_V 14 3 3V 13 1 2V 5 AS 12 GND 11 VIDEO 2 BST_CNTL 10 NC 4 NC RF_AGC 1 ANT_PWR OPT 17 DIF_1 9 SIF 8 NC IF_TP 3 B 16 IF_AGC_CNTL 7 SDA 6 SCL 15 RESET 18 DIF_2 19 SHIELD TU2600 4 TDTJ S0...

Page 41: ...OD 1 2V_DE SCL1_3 3V R2810 22 ISDB_DEMOD R2808 22 ISDB_DEMOD C2804 0 1uF ISDB_DEMOD C2813 0 1uF 16V ISDB_DEMOD R2803 10K ISDB_DEMOD C2811 0 1uF 16V ISDB_DEMOD C2801 0 1uF ISDB_DEMOD C2815 0 1uF 16V ISDB_DEMOD C2822 0 1uF 16V ISDB_DEMOD R2807 22 ISDB_DEMOD R2811 2 2K OPT C2808 0 1uF ISDB_DEMOD R2813 22 R2814 22 IC2800 MN884433 ISDB_DEMOD 1 VSS_1 2 AVDD_S 3 AII_S 4 AIQ_S 5 AVSS_S 6 VRT_S 7 VRB_S 8 T...

Page 42: ...ISDB_POWER C2904 0 1uF 16V ISDB_POWER IC2900 SC4215ISTRT ISDB_POWER 3 VIN 2 EN 4 NC_2 1 NC_1 5 NC_3 6 VO 7 ADJ 8 GND 3 3V_DE IF_AGC L2900 BLM18PG121SN1D ISDB_POWER C2902 0 1uF 16V ISDB_POWER R2900 0 ISDB_DEMOD R2902 10K ISDB_POWER R2901 0 INT_DEMOD IF_AGC_ISDB 3 3V_DE C2903 10uF 10V ISDB_POWER R2903 5 1K ISDB_POWER TP2901 C2900 0 1uF ISDB_POWER IF_AGC_SEL TU_IF_AGC_BCM C2901 0 1uF ISDB_POWER 3 3V_...

Page 43: ...2203 5 6V CDS3C05HDMI1 C2213 0 1uF USB_CTL2 D2201 5 6V CDS3C05HDMI1 R2211 100K OPT USB_DP1 USB_DM2 USB_CTL1 R2201 12K 1 10W 1 IC2201 USB2512A_AEZG 1 USBDN1_DM 3 USBDN2_DM 7 NC_2 9 NC_4 10 VDDA33_2 11 TEST 12 PRTPWR1 13 OCS1_N 14 VDD18 15 VDD33CR 16 PRTPWR2 17 OCS2_N 18 NC_5 19 NC_6 20 NC_7 21 NC_8 22 SDA SMBDATA NON_REM1 23 VDD33 24 SCL SMBCLK CFG_SEL0 25 HS_IND CFG_SEL1 26 RESET_N 27 VBUS_DET 28 ...

Page 44: ...BCM BT MODULE 1 2 3 4 5 6 7 8 9 10 11 3 3V_NORMAL R1896 27 BCM BT MODULE R1897 27 BCM BT MODULE R1898 0 BCM BT MODULE VREG_CTRL BT_RESET R1899 0 BCM BT MODULE BT_DP BT_DM D1898 5 6V CDS3C05HDMI1 BCM BT MODULE D1899 5 6V CDS3C05HDMI1 BCM BT MODULE R1889 10 BCM BT MODULE Q1801 RTR030P02 BCM BT MODULE S D G Q1800 2SC3052 BCM BT MODULE E B C BT_ON OFF R1887 47K BCM BT MODULER1886 47K BCM BT MODULE R18...

Page 45: ...9 CI_A 10 CI_A 11 CI_A 12 CI_A 13 CI_OUTDATA 4 CI_OUTDATA 5 CI_OUTDATA 6 CI_OUTDATA 7 CI_OUTCLK CI_OUTVALID CI_OUTSTART CI_OUTDATA 0 CI_OUTDATA 1 CI_OUTDATA 2 CI_OUTDATA 3 CI_OUTCLK CI_WAIT CI_MOD_RESET GP49 CI_CD2 GP38 CI_MOD_RESET CI_CD1 FE_TS_DATA_CLK FE_TS_VAL_ERR CI_WAIT CI_IREQ GP39 007 H5 016 AJ3 CI_CD1 CI_OUTCLK CI_OUTDATA 0 7 CI_OUTSTART CI_OUTVALID FE_TS_SYNC CI_CD2 EBI_RW 007 E6 CI_5V_C...

Page 46: ... 0 1uF 16V MINI_LVDS RXB0 R7405 0 NON_GIP C7408 0 1uF 50V MINI_LVDS CLK6 VGL_I GOE GCLK1_I VGI_P VGL 5V H_CONV RXC1 GMA15 VCOML R7404 3 3K NON_GIP RXB0 GMA16 VST CLK4 GMA9 GMA4 Z_OUT RXB1 CLK5 RXA1 HVDD GMA12 RXA0 VCOMR C7403 1uF 50V MINI_LVDS C7406 1uF 50V MINI_LVDS P7400 104060 6017 MINI_LVDS 1 GND 2 GMA1 3 GMA3 4 GMA4 5 GMA6 6 GMA7 7 GMA9 8 GMA10 9 GMA12 10 GMA13 11 GMA15 12 GMA16 13 GMA18 14 G...

Page 47: ...FHD_60Hz 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 C7601 1000pF 50V SDA3_3 3V SCAN_BLK1 OPC_OUT OPC_OUT LVDS_TX_1_CLK_P LVDS_TX_1_DATA3_N LVDS_TX_1_DATA4_N LVDS_TX_1_DATA1_P LVDS_TX_1_CLK_N LVDS_TX_1_DATA2_N LVDS_TX_1_DATA1_N LVDS_TX_1_DATA4_P LVDS_TX_1_DATA0_N LVDS_TX_1_DATA3_P LVDS_TX_1_DATA2...

Page 48: ...0 3 3V_NORMAL RXA3 RXA4 RXB3 RXA2 R7706 0 LD60_SCAN R7702 0 NON_SCAN R7708 0 LD60_SCAN RXCCK RXB1 RXC2 RXA0 RXD3 SDA3_3 3V RXCCK SCAN_BLK1 OPC_OUT RXB4 RXA1 R7712 10K VESA RXBCK RXC1 R7710 10K 8BIT R7707 0 FHD_OPC RXC1 R7700 0 NON_LGD_22 OPC_OUT RXC0 RXA1 RXA2 FRC_RESET RXB2 RXACK RXD0 RXD2 R7701 0 NON_LGD_22 RXC3 P7701 TF05 41S FHD_120Hz 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23...

Page 49: ...A1 2V D1 2V R8040 100K C8027 0 1uF 3 5V_ST R8043 470K 1 C8036 0 1uF C8032 0 1uF L8009 2uH R8048 910K 1 C8026 0 1uF 10 R8041 R8042 0 C8035 22uF D1 8V L8012 3 6uH NR8040T3R6N R8052 10K 0 1uF C8050 R8051 6 8K C8042 0 01uF 25V 3 5V_ST C8038 0 01uF 25V C8031 22uF 10V C8044 100pF 50V OPT R8057 10K 1 C8048 22uF 10V R8056 10K 1 10W 1 C8034 0 01uF 25V L8008 CIC21J501NE IC8003 AOZ1072AI 3 AGND 2 VIN 4 FB 1 ...

Page 50: ...30 INTP1 15 P17 TI50 TO50 16 P16 TOH1 INTP5 17 P15 TOH0 18 P14 RXD6 19 P13 TXD6 20 P12 SO10 21 P11 SL10 RXD0 22 P10 SCK10 TXD0 23 AVREF 24 AVSS 25 ANI7 P27 26 ANI6 P26 27 ANI5 P25 28 ANI4 P24 29 ANI3 P23 30 ANI2 P22 31 ANI1 P21 32 P20 ANI0 33 P130 34 P01 TI010 TO00 35 P00 TI000 36 P140 PCL INTP6 37 P120 INTP0 EXLVI 38 P41 39 P40 40 RESET 41 P124 XT2 EXCLKS 42 P123 XT1 43 FLMD0 44 P122 X2 EXCLK OCD...

Page 51: ...SC3052 E B C R8200 22 Q8203 2SC3052 WIRELESS E B C R8205 47K R8220 47K COMMERCIAL R8202 47K C8211 1000pF 50V R8203 10K D8206 5 6V AMOTECH R8276 1 5K KEY1 3 5V_ST R8211 10K 1 3 3V_NORMAL Q8200 2SC3052 E B C L8202 BLM18PG121SN1D NEC_EEPROM_SCL NEC_EEPROM_SDA D8209 5 6V JK8200 XRJV 01V D12 180 1 2 3 4 5 6 7 8 D1 D2 D3 D4 9 L8204 CIC21J501NE D8212 5 6V D8211 5 6V D8207 5 6V EPHY_TDN D8208 5 6V EPHY_AC...

Page 52: ...DMI3 R8302 1K R8303 0 5V_HDMI_4 D0 _HDMI1 5V_HDMI_2 D1 _HDMI3 R8311 4 7K R8327 0 D0 _HDMI1 HDMI_RX0 CK _HDMI2 DDC_SDA_2 D8301 5 5V OPT CEC_REMOTE DDC_SDA_2 CK _HDMI1 D8307 HDMI_3 A1 C A2 5V_NORMAL CK _HDMI2 D0 _HDMI3 C8304 0 1uF 16V R8322 47K CEC_REMOTE CEC_REMOTE C8313 0 1uF 16V D8312 MMBD301LT1G R8337 0 GND R8307 0 HDMI_HPD_1 GND DDC_SCL_4 D8304 5 5V OPT HDMI_HPD_2 GND SDA2_3 3V DDC_SDA_3 5V_HPD...

Page 53: ...D_GND 7 GREEN_GND 8 BLUE_GND 9 NC 10 SYNC_GND 11 GND_2 12 DDC_DATA 13 H_SYNC 14 V_SYNC 15 DDC_CLOCK 16 SHILED R8401 22 DSUB_B PC_L_IN 5V_NORMAL R8414 2 7K R8411 470K R8419 0 DSUB_G R8402 22 DSUB_DET R8413 2 7K R8423 0 OPT R8425 1K R8424 10K R8421 0 R8417 0 C8402 22pF 50V OPT C8403 22pF 50V OPT R8405 22 R8406 22 C8401 0 1uF C8404 0 1uF 16V C8405 18pF 50V C8406 18pF 50V R8416 22 R8415 22 R8422 100 R...

Page 54: ...AV C8504 100pF SIDE_AV 3 3V_NORMAL D8500 5 6V SIDE_AV R8505 0 SIDE_AV R8501 470K SIDE_AV R8504 1K SIDE_AV JK8500 PPJ235 01 SIDE_AV 4A YL O SPRING 5A YL E LUG 3A YL CONTACT 4B WH O SPRING 3C RD CONTACT 4C RD O SPRING 5C RD E LUG D8501 5 6V SIDE_AV R8502 2 7K SIDE_AV C8503 47pF 50V SIDE_AV C8502 1uF 25V SIDE_AV C8501 1uF 25V SIDE_AV C8505 100pF SIDE_AV C8500 100pF 50V SIDE_AV R8506 0 SIDE_AV R8503 0...

Page 55: ...D TP8700 24V R8700 0 NON_3DTV C8701 2 2uF R8711 4 7K OPT C8703 0 1uF R8713 1K IC8700 MC14053BDR2G WIRELESS 3 Z1 2 Y0 4 Z 1 Y1 6 INH 5 Z0 7 VEE 8 VSS 9 C 10 B 11 A 12 X0 13 X1 14 X 15 Y 16 VDD R8704 22K R8712 47K OPT R8706 0 NON_WIRELESS R8708 0 NON_3DTV C8700 0 1uF 50V WIRELESS_TX WIRELESS_SCL R8714 10K TP8701 R8707 0 WIRELESS WIRELESS_DL_RX 3 3V_NORMAL 3 5V_ST IR_PASS R8701 0 WIRELESS WIRELESS_DE...

Page 56: ... C8838 390pF 50V R8823 4 7K L8800 BLM18PG121SN1D R8805 100 D8803 100V 1N4148W OPT C8815 10uF 10V OPT 0 1uF C8843 50V 0 1uF C8844 50V 3 3V_NORMAL R8808 100 R8801 100 POWER_DET R8813 12 R8816 12 C8801 10uF 10V OPT 0 1uF C8833 50V R8817 12 C8835 390pF 50V R8807 0 OPT 0 1uF C8841 50V R8824 0 R8802 100 SDA1_3 3V R8804 100 C8804 0 1uF 16V D8800 100V 1N4148W OPT R8810 10K C8821 1000pF 50V C8828 1uF 25V C...

Page 57: ...RC_A 8 C8903 1000pF OPT FRC_MCLK DDR3_CKE DDR3_RESETB FRC_A 9 DDR3_CASB R8900 1K 1 C8914 0 1uF D1 5V_DDR3 FRC_DMU DDR3_BA2 FRC_A 3 C8904 0 1uF 16V 1 5V_MEMC R8923 10K FRC_A 1 DDR3_DQSUB FRC_A 7 C8920 0 1uF C8926 0 1uF DDR3_CKE DDR3_BA1 C8923 0 1uF FRC_DQL 0 DDR3_RASB 1 5V_MEMC 3 3V_MEMC C8934 10uF 25V C8937 2200pF 3 3V_MEMC 12V R8928 10K C8944 0 1uF 16V R8935 10K 1 C8942 22uF 10V C8940 100pF 50V O...

Page 58: ...2 DDR3_A4 DDR2_CASZ R4 DDR3_A5 DDR2_A10 G1 DDR3_A6 DDR2_A0 U5 DDR3_A7 DDR2_A5 F3 DDR3_A8 DDR2_A2 T5 DDR3_A9 DDR2_A9 F1 DDR3_A10 DDR2_A11 R6 DDR3_A11 DDR2_A4 R5 DDR3_A12 DDR2_A8 T6 DDR3_BA0 DDR2_BA2 G3 DDR3_BA1 DDR2_ODT U4 DDR3_BA2 DDR2_A12 E1 DDR3_MCLK DDR2_MCLK U1 DDR3_MCLKZ DDR2_MCLKZ U2 DDR3_CKE DDR2_RASZ T4 DDR3_ODT DDR2_BA1 H2 DDR3_RASZ DDR2_WEZ J1 DDR3_CASZ DDR2_CKE H3 DDR3_WEZ DDR2_BA0 H1 D...

Page 59: ... 50V NON_GIP R9168 10K GIP RXD4 R9196 24K GCLK2_I GMA12 R9107 0 GCLK5_I R9159 0 GIP GCLK6_I VGH 25V R9150 0 GIP R9118 10K OPT EN2 GOE GCLK1_I R9180 360 R9168 1 33K NON_GIP C9105 0 1uF 50V R9121 0 GIP VCOM R9164 0 GIP C9111 1uF 50V R9153 0 NON_GIP C9155 22uF 25V DISCHG C9113 22pF 50V R9171 0 GOE GCLK1_I R9170 10 DPM_A R9128 200K TCON_42_FHD VDD_LCM 16V C9145 1000pF 50V GIP R9173 1K R9149 0 R9111 10...

Page 60: ...1K 1 TCON_37_FHD R9166 3 20K 1 TCON_47_FHD R9156 2 910K 1 TCON_37_FHD R9144 4 27K 1 TCON_55_FHD R9157 1 27K 1 TCON_32_FHD R9130 4 68K 1 TCON_55_FHD R9126 1 510K 1 TCON_32_FHD R9166 1 24K 1 TCON_32_FHD R9126 3 510K 1 TCON_47_FHD R9130 2 220K 1 TCON_37_FHD R9166 4 15K 1 TCON_55_FHD R9130 3 220K 1 TCON_47_FHD R9156 4 150K 1 TCON_55_FHD R9131 4 27K 1 TCON_55_FHD R9129 1 22K 1 TCON_32_FHD R9129 2 47K 1...

Page 61: ......

Page 62: ... TU_CVBS TU_SIF SCL1 SDA1 CONTROL IR KEY P8200 NEC_EEPROM _SCL SDA LED_R BUZZ KEY1 KEY2 IR LED_B LG LOGO SIDE_USB _DP DM HDMI 1 TDA19997 4x1 HDMI Switch IC8300 HDMI 2 HDMI 3 HDMI 4 HDMI0_ SCL SDA TMDS 0 2 CLK HDMI1_ SCL SDA TMDS 0 2 CLK HDMI2_ SCL SDA TMDS 0 2 CLK HDMI3_ SCL SDA TMDS 0 2 CLK FE_TS_SERIAL SYNC VAL_ERR DATA_CLK ATV DTV TUNER HNIM TU2600 Cable IF_N P AV1 COMP1 COMP2 CVBS L R YPbPr L ...

Page 63: ...I LVDS MAX9668ETP IC601 GMA 8 bit LEVEL SHIFT MAX17119ETI IC602 MINI_LVDS_POWER MAX17113 IC603 DPM_A EN2 MINI_LVDS_POWER TPS62110 IC600 HVDD VDD_LCM VCC_LCM SPDIF_OUT HP_L ROUT I2S P8800 4pin MST7378P URSA3 IC9001 LVDS_TX_E O 0 4 I2C_SCL SDA DDR3 Address 0 12 DDR3 Data 0 15 LVDS_E O_CLK Serial Flash W25X40VSSIG IC9000 FRC_SPI SCL1 SDA1 DDR2 SDRAM MT47H128M8HQ 1GBit IC400 401 DDR0 Data 0 15 DDR2 SD...

Page 64: ...ni LVDS P7400 1 LGE7378A URSA3 IC9001 LVDS_TX_E O 0 4 SCL1 SDA1 DDR3 Address 0 12 DDR3 Data 0 15 LVDS_E O_CLK Serial Flash W25L4005CM2I IC9000 FRC_SPI DDR2 SDRAM MT47H128M8HQ 1GBit IC400 401 DDR0 Data 0 15 DDR2 SDRAM MT47H128M8HQ 1GBit IC402 403 DDR0 Address 0 13 DDR1 Data 0 15 DDR1 Address 0 13 BCM High Block Diagram Memory MICOM UPD78F0513AGA GAM AX IC8101 SCL1 SDA1 MICOM EEPROM M24C16 WMN6T 16K...

Page 65: ... ISDB_DEMOD MN884433 IC3701 0xd8 MICOM NEC IC1002 MICOM NEC IC1002 Audio Amp NTP7000 IC501 Audio Amp NTP7000 IC501 USB2 USB2512 IC2201 FRC URSA3 MST7378 IC1300 FRC URSA3 MST7378 IC1300 CH1 CH1 CH2 CH2 CH3 CH3 NVRAM M24M01 IC102 NVRAM M24M01 IC102 Brazil Only Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 66: ...0 0xc0 ISDB_DEMOD MN884433 IC3701 0xd8 MICOM NEC IC1002 MICOM NEC IC1002 Audio Amp NTP7000 IC501 Audio Amp NTP7000 IC501 USB2 USB2512 IC2201 FRC URSA3 MST7378 IC1300 FRC URSA3 MST7378 IC1300 CH1 CH1 CH2 CH2 CH3 CH3 NVRAM M24M01 IC102 NVRAM M24M01 IC102 Copyright ⓒ 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Search results

Summary of Contents for 32LD840

Reviews:

LG 32LD840, Service Manual, Page: 2 / 66

Search results

Summary of Contents for 32LD840

Reviews: