LG 26LK310 Service Manual Download Page 28 | Manualshive

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Summary of Contents for 26LK310

Page 1: ...RECAUTIONS IN THIS MANUAL CHASSIS LP91J MODEL 26LK310 310Y 26LK310 310Y TA MODEL 26LK311 26LK311 TB 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 MFL62461531 1104 REV01 ...

Page 2: ... LG Electronics Inc All right reserved Only for training and service purposes 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 TROUBLE SHOOTING 14 BLOCK DIAGRAM 17 EXPLODED VIEW 18 SCHEMATIC CIRCUIT DIAGRAM ...

Page 3: ...d 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...

Page 4: ... 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...

Page 5: ...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 replac...

Page 6: ...in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC No Item Specification Remark 1 Market NON EU 2 Broadcasting system PAL SECAM B G D K PAL I II NTSC M 3 Available Channel BAND PAL NTSC China DK Australia BG VHF UHF E2 C69 2 7...

Page 7: ...DTV 720P 8 1280 720 45 00 60 00 74 250 HDTV 720P 9 1280 720 37 50 50 00 74 25 HDTV 720P 50 Hz 10 1920 1080 28 125 50 00 74 250 HDTV 1080I 50 Hz 11 1920 1080 33 72 59 94 74 176 HDTV 1080I 12 1920 1080 33 75 60 00 74 25 HDTV 1080I 13 1920 1080 56 25 50 148 5 HDTV 1080P 14 1920 1080 67 432 59 94 148 350 HDTV 1080P 15 1920 1080 67 5 60 00 148 5 HDTV 1080P No Specification Proposed Remark Resolution H ...

Page 8: ...ication Proposed Remarks Resolution H freq kHz V freq Hz Pixel Clock MHz 1 720 x 480 15 73 59 94 13 500 SDTV DVD 480I 525I Spec out 2 720 x 480 15 75 60 00 13 514 SDTV DVD 480I 525I but display 3 720 x 576 15 625 50 00 13 500 SDTV DVD 576I 625I 50 Hz 4 720 x 480 31 47 59 94 27 SDTV 480P 5 720 x 480 31 5 60 00 27 027 SDTV 480P 6 720 x 576 31 25 50 00 27 SDTV 576P 7 1280 x 720 44 96 59 94 74 176 HDT...

Page 9: ...d the MSTAR main software IC800 Mstar ISP Utility 1 Using D L Jig 2 Using USB Memory Stick 2 Input Tool Option Area option 3 Download the EDID EDID datas are automatically download when adjusting the Tool Option2 4 ADC Calibration RGB Component 4 Check SW Version 3 2 SET assembly adjustment items 1 Input Area option 2 Adjustment of White Balance Auto Manual 3 Input Tool Option Area option 4 Intell...

Page 10: ...nged the option the input menu can differ the model spec Refer to Job Expression of each main chassis assembly EBTxxxxxxxx for Option value Caution Don t Press IN STOP key after completing the function inspection 4 3 EDID Download 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...

Page 11: ...0 80 37 00 BC 88 21 00 00 18 00 00 00 FC 00 4C 60 47 20 54 56 0A 20 20 20 20 20 20 20 00 00 00 FD 70 00 3A 3F 1C 44 0F 00 0A 20 20 20 20 20 20 00 55 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 01 15 01 03 80 46 27 78 0A D9 B0 A3 57 49 9C 25 20 11 49 4B 21 08 00 45 40 01 01 61 40 01 01 01 01 30 01 01 01 01 01 01 01 1D 00 72 51 D0 1E 20 6E 28 40 55 00 C4 8E 2...

Page 12: ... For automatic adjustment LP91J Support RS 232C I2C Interface For ADC DDC Adjustment 1 Enter the adjustment mode of DDC Set command delay time 50ms Enter the DDC adjustment mode at the same time heat run mode when pushing the power on by power only key Maintain the DDC adjustment mode with same condition of Heat run Maintain after AC off on in status of Heat run pattern display 2 Release the DDC a...

Page 13: ...e control CASE First adjust the coordinate far away from the target value x y 1 x y target i Decrease the R G 2 x y target i First decrease the B gain 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 x target y target i First decrease B so make x a little more than the target ii Adjust x value b...

Page 14: ...bly A PROCESS Fail Fail Pass Pass Check LED Assembly Change IC1002 IC1008 Q1003 Pass Check short of IC1001 IC1003 IC1007 Fail Re soldering or Change defect part of IC1001 IC1003 IC1007 Fail No Raster B Process Check LED status On Display Unit Repeat A PROCESS Pass Fail Check Output of IC802 Change IC802 Fail Change Inverter Connector Or Inverter Fail Pass Fail Pass Change Module Fail Check LVDS Ca...

Page 15: ... defect part Pass No Raster on COMMPONENT Signal Check Input source Cable And Jack Pass Re soldering or Change the defect part Check the Input Output Of IC800 Fail Pass Re soldering or Change the defect part Repeat A B Process Check The Input Output Of JK101 Fail Pass No Raster on HDMI Signal Check Input source Cable And Jack Pass Check the Input Output of JK301 JK302 Fail Re soldering or Change t...

Page 16: ...nput Fail No Raster On AV Video S Video Signal No Signal On TV RF Signal Check Input source Cable And Jack Pass Check Input source Cable And Jack Pass Check The Input Output of JK102 Re soldering or Change the defect part Pass Fail Pass Repeat A B Process Pass Check the Input Output of IC800 Fail Re soldering or Change the defect part Pass Check The Input Output Of TU500 Re soldering or Change the...

Page 17: ...CP 24WC08 EEP_SCL SDA EEP_SCL SDA TXCE2 TXCE3 TXCLKE TXCE1 TXCE0 TXCO1 TXCO3 TXCO2 TXCO0 TXCLKO M_SCL SDA MAIN SCLAER Matri x LGE4767A IC800 EEPROM 24C02 IC302 TU500 IC802 IC803 IC801 IC600 P402 P403 M_SCL SDA SIDE REAR HDMI3 JK303 USB JK204 RS 232C JK200 USB SVC JK205 HDMI1 JK301 HDMI2 JK302 EEPROM 24C02 IC301 EEPROM 24C02 IC300 EEPROM 24C02 IC300 DDC_SCL1 SDA1 DDC_SCL2 SDA2 DDC_SCL3 SDA3 Control...

Page 18: ...l 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 IM...

Page 19: ...R122 0 R123 1K Q103 RT1C3904 T112 E B C Q106 RT1C3904 T112 E B C MNT_LOUT Q104 RT1C3904 T112 E B C C102 10uF 16V MNT_ROUT R125 0 MUTE_LINE JK101 PPJ238 01 NON_AUDIO_OUT 5D GN2 O SPRING 6D GN2 E LUG 4D GN2 CONTACT 7E BL2 E LUG S 5E BL2 O SPRING 7F RD2 E LUG S 5F RD2 O SPRING_1 5G WH2 O SPRING 4H RD2 CONTACT 5H RD2 O SPRING_2 6H RD2 E LUG 6A YL1 E LUG 5A YL1 O SPRING 4A YL1 CONTACT 5B WH1 O SPRING 4...

Page 20: ...00 120OHM OCP_READY 5V_USB R209 1K OCP_READY R210 4 7K OCP_READY R237 0 Non_OCP C210 10uF 6 3V R207 68 R208 68 C213 68pF 50V C211 68pF 50V R219 4 7K READY L201 500 C212 220uF 16V C214 100uF 16V D213 OCP_READY A AC C R238 510 OCP_READY R224 10K SIDE_AV R225 10K SIDE_AV JK200 SPG09 DB 009 1 2 3 4 5 6 7 8 9 10 JK201 PPJ235 01 SIDE_AV 4A YL O SPRING 5A YL E LUG 3A YL CONTACT 4B WH O SPRING 3C RD CONTA...

Page 21: ...CLK 11 CLK_SHIELD 2 DATA2_SHIELD 19 HPD 18 5V_POWER 10 CLK 4 DATA1 1 DATA2 17 DDC CEC_GND 9 DATA0 8 DATA0_SHIELD 3 DATA2 16 SDA 7 DATA0 6 DATA1 15 SCL JK301 YKF45 7058V 14 NC 13 CEC 5 DATA1_SHIELD 20 SHIELD 12 CLK 11 CLK_SHIELD 2 DATA2_SHIELD 19 HPD 18 5V_POWER 10 CLK 4 DATA1 1 DATA2 17 DDC CEC_GND 9 DATA0 8 DATA0_SHIELD 3 DATA2 16 SDA 7 DATA0 6 DATA1 15 SCL R319 10K 5V_HDMI_3 5V_MULTI TMDS3_RX1 D...

Page 22: ...R402 0 READY C403 470pF 50V NON_19_22INCH SUB_SCL LED_R P404 12507WR 03L 19_22INCH 1 KEY1 2 KEY2 3 GND 4 P403 FF10001 30 19_22INCH 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 5V_ 12V_LCD TXCE0 TXCE0 TXCE1 TXCE1 TXCE2 TXCE2 TXCE3 T SMALL_NC2 SMALL_NC1 SMALL_OPC_OUT SMALL_NC3 SMALL_OPC_EN SMALL_NC4 R414 0 HD_NOT AUO_IPS R418 0 OPC_ENABLE R419 0 LVDS_SEL R415 0...

Page 23: ...H C507 82pF 50V READY C508 10uF 16V L500 120 ohm READY Q502 ISA1530AC1 E B C R502 4 7K R506 220 R507 220 C505 100uF 16V READY C506 100uF 16V READY R505 47 R504 47 C503 0 1uF 50V R500 0 R501 0 TU500 TAFJ Z001D PAL_TUNER 5 MOPLL_AS 11 VIDEO 2 NC_2 10 NC_4 4 RF_AGC 1 NC_1 9 SIF 8 NC_3 3 B 5V 7 SDA 6 SCL 12 GND 13 SHIELD TU500 1 TAFJ H001F 5 MOPLL_AS 11 VIDEO 2 NC_2 10 NC_4 4 RF_AGC 1 NC_1 9 SIF 8 NC_...

Page 24: ... N2 L609 MLB 201209 0120P N2 L610 MLB 201209 0120P N2 L611 MLB 201209 0120P N2 C612 68uF 35V C640 68uF 35V L607 AD 9060 EAP61008401 2S 1S 1F 2F L603 AD 9060 EAP61008401 2S 1S 1F 2F P600 SMAW250 H04R 1 2 3 4 R631 47K READY R673 0 IC600 NTP 3200L 1 BST1A 2 VDR1A 3 RESET 4 AD 5 DVSS_1 6 VSS_IO 7 CLK_I 8 VDD_IO 9 DGND_PLL 10 AGND_PLL 11 LF 12 AVDD_PLL 13 DVDD_PLL 14 TEST0 GND 15 DVSS_2 16 DVDD 17 SDAT...

Page 25: ... DDCDC_CK 94 RXCCKN 95 RXCCKP 96 DDCDC_DA 97 RXC0N 98 RXC0P 99 GND_6 100 RXC1N 101 RXC1P 102 AVDD_DM 103 RXC2N 104 RXC2P 105 HOTPLUGC 106 USB1_DM 107 USB1_DP 108 SCK 109 SDI 110 SDO 111 SCZ 112 PWM0 113 PWM1 114 PWM2 115 PWM3 116 LVA4P 117 LVA4M 118 LVA3P 119 LVA3M 120 LVACKP 121 LVACKM 122 LVA2P 123 LVA2M 124 LVA1P 125 LVA1M 126 LVA0P 127 LVA0M 128 VDDP_2 129 LVB4P 130 LVB4M 131 LVB3P 132 LVB3M 1...

Page 26: ...16V C904 0 01uF C917 0 01uF C908 0 01uF C916 0 01uF C907 0 01uF C915 0 01uF C906 0 01uF C914 0 01uF C913 0 01uF C903 0 01uF C912 0 01uF C902 0 01uF C911 0 01uF C910 0 01uF C901 0 01uF C909 0 01uF C900 0 01uF 50V IC900 K4T51163QI HCF7 J2 VREF J8 CK H2 VSSQ_2 B7 UDQS N8 A4 P8 A8 L1 NC_4 L2 BA0 R8 NC_3 K7 RAS F8 VSSQ_3 F3 LDM P3 A9 M3 A1 N3 A5 K8 CK R3 NC_5 L3 BA1 J7 VSSDL L7 CAS F2 VSSQ_4 B3 UDM M2 ...

Page 27: ...L_15V P_3 5V P_3 5V P_12V_SMALL_15V R1010 0 19_22INCH R1001 4 7K 26_32INCH L1010 120 ohm READY ZD1000 3 6V READY L1011 120 ohm READY ZD1001 3 6V READY C1061 100uF 16V READY C1007 0 1uF 50V 2SC3875S Q1005 26_32INCH 1 2 3 R1004 0 READY R1000 4 7K 26_32INCH R1061 4 7K R1062 100K R1066 4 7K READY R1067 100K C1052 10uF 16V 3 5V_MULTI C1071 10uF 16V C1072 0 1uF 16V R1006 100K READY R1063 12K 1 R1064 10K...

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