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Standard Repair Process Detail Technical Manual

Version checking method

A. Video error_Video error, video lag/stop

1. Checking method for remote controller for adjustment

Press the IN-START with the remote
controller for adjustment

Version

<ALL MODELS>

A7

Established

date

Revised
date

Error

symptom

Content

A7

2014. 06 .10

Signage Monitor

Copyright ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

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Summary of Contents for 32SE3B

Page 1: ...eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO CHASSIS MODEL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL SERVICE MANUAL MFL67237428 1502 REV00 32SE3B 32SE3B BE LW57A MONITOR SIGNAGE ...

Page 2: ...ll rights reserved Only for training and service purposes CONTENTS CONTENTS 2 PRECAUTION 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 BLOCK DIAGRAM 15 EXPLODED VIEW 16 SCHEMATIC CIRCUIT DIAGRAM APPENDIX TROUBLE SHOOTING GUIDE APPENDIX ...

Page 3: ... 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 If the surface of panel become dirty please wipe it off with a softmaterial Cleaning with a dirty or rough cloth may damage the panel WARNING BE CAREFUL ELECTRIC SHOCK If you want to replace with the new backlight or inverter circuit must disconnec...

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: ...he 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 replace...

Page 6: ...ion EMC CE IEC 4 General Specification No Item Content Remark 1 HDMI Input 1EA HDMI Side support D TV PC resolution 2 DVI Input 1EA DVI 3 RGB Input 1EA RGB PC Analog D SUB 15Pin 4 Audio Input 1EA RGB DVI Audio Analog L R Input 5 Audio Output 1EA Line out audio Analog L R Output 6 Speaker Output 1EA Compatible with Signage speaker 10W 2Ch Output 6ohms 7 IR Sensor Input 1EA IR Sensor Detachable Type...

Page 7: ...9 1056 800 40 128 88 800 x 600 V Lines 60 317 628 600 1 4 23 4 H Pixels 65 0 48 363 1344 1024 24 136 160 1024 x 768 V Lines 60 0 806 768 3 6 29 5 H Pixels 74 5 44 772 1664 1280 64 128 192 1280 x 720 V Lines 59 855 748 720 3 5 20 6 H Pixels 108 0 60 1800 1280 96 112 312 1280 x 960 V Lines 60 1000 960 1 3 36 7 H Pixels 90 5 57 717 1568 1152 64 120 184 1152 X 864 V Lines 59 934 897 864 3 4 26 8 H Pix...

Page 8: ... 192 1280 x 720 V Lines 59 855 748 720 3 5 20 5 H Pixels 85 86 47 7 1800 1366 72 144 216 1366 x 768 V Lines 60 795 768 1 3 23 6 H Pixels 108 0 63 981 1688 1280 48 112 248 1280 x 1024 V Lines 60 02 1066 1024 1 3 38 7 H Pixels 146 25 65 290 2240 1680 104 176 280 1680 x 1050 V Lines 59 954 1089 1050 3 6 30 8 H Pixels 148 50 67 5 2200 1920 88 44 88 1920 x 1080 V Lines 60 1125 1080 4 5 46 5 3 HDMI DTV ...

Page 9: ...d then load download file XXXX bin by clicking Read 4 Click Connect tab If Can t is displayed Check connec tion between computer jig and set 5 Click Auto tab and set as below 6 Click Run 7 After downloading check OK message USB DOWNLOAD epk file download 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in USB Stick If your downloaded program version in USB Stick is Low i...

Page 10: ...ording to aging time 1 ROW Direct LED 32 EDGE LED 43 49 55 models ap plied only LGD Module in LGEKR GUMI And LGERS Luminance 204 Gray 80IRE Gumi Mar Dec Standard color coordinate and temperature using CA 210 CH 14 by aging time 32SE3B 43 49 55 65SE3B NO Enter Adjust MODE ADC adjust Item Adjust Mode In ADC Adjust CMD 1 A A CMD 2 A D Data 0 0 1 0 0 When transfer the Mode In Carry the command Automat...

Page 11: ...on Color Temperature COOL Medium Warm One of R Gain G Gain B Gain should be kept on 0xC0 and adjust other two lower than C0 when R G B Gain ar e all C0 it is the FULL Dynamic Range of Module Manual W B process using adjusts Remote con trol After enter Service Mode by pushing ADJ key Enter White Balance by pushing key at White Balance After You finish all adjustments Press In start button and compa...

Page 12: ...r does that in advance 4 6 DDC EDID Write DVI 128Byte Connect DVI Signal Cable to DVI Jack Write EDID DATA to EEPROM 24C02 by using DDC2B protocol Check whether written EDID data is correct or not For SVC main Ass y EDID have to be downloaded to Insert Process in advance In case of SKD Ass y it is no need to do EDID D L Ass y Supplier does that in advance 4 7 DDC EDID Write HDMI 256Byte Connect HD...

Page 13: ...per cables below for EDID Writing Download HDMI1 HDMI2 separately because HDMI1 is dif ferent from HDMI2 For Analog EDID For DVI EDID For HDMI EDID D sub to D sub DVI to DVI DVI D to HDMI or HDMI to HDMI No Item Condition Hex Data 1 Manufacturer ID GSM 1E6D 2 Version Digital 1 01 3 Revision Digital 3 03 RGB EDID data DVI EDID data HDMI EDID dat 4 10 Outgoing condition Configuration When pressing I...

Page 14: ... 4 Method notice 1 Serial number D L is using of scan equipment 2 Setting of scan equipment operated by Manufacturing Technology Group 3 Serial number D L must be conformed when it is produced in production line because serial number D L is mandatory by D book 4 0 Manual Download Model Name and Serial Num ber If the TV set is downloaded By OTA or Service man Sometimes model name or serial number i...

Page 15: ... 15 LGE Internal Use Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes BLOCK DIAGRAM ...

Page 16: ...fety 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 IMPORTANT SAFETY NOTICE 200 400 540 542 510 LV1 A2 530 541 201 202 ...

Page 17: ...PIO77 K17 I2C_SDAM3 I2C_DDCR_DA GPIO76 J15 SDAM2 GPIO55 U8 SCKM2 GPIO56 T7 SCKM0 GPIO58 U7 SDAM0 GPIO59 V7 I2S_IN_BCK GPIO159 F6 I2S_IN_SD GPIO160 G6 I2C_SCKM1 GPIO80 AA4 I2C_SDAM1 GPIO81 Y4 ET_TXD 0 GPIO62 J6 EXT_TX_CLK GPIO64 K6 I2S_IN_WS GPIO158 G7 ET_COL GPIO60 J4 ET_TXD 1 GPIO61 J5 LCK GPIO194 H19 LDE GPIO195 G20 LHSYNC GPIO196 G19 LVSYNC GPIO197 G21 UART2_RX GPIO69 J17 UART2_TX GPIO70 J16 UA...

Page 18: ... C49 0 1uF 16V A MA0 AVDD_NODIE R165 4 7K OPT R84 10K DDR_EXT PF_OE C62 0 1uF DDR_EXT A MCASB SPI_CS L3 BLM18PG121SN1D AVDD_DMPLL AR1 22 A MA8 A MA12 R164 4 7K OPT A MA9 R36 3 3K A MDQU1 3 5V_ST L1 BLM18PG121SN1D PF_CE1 A MDQL4 10uF 10V C25 3 5V_ST A MDMU A MDQL7 R70 4 7K C68 0 1uF DDR_EXT R3 1K 1 DDR_EXT L5 BLM18PG121SN1D 10uF C6 C23 1uF OPT C8 0 1uF C69 0 1uF DDR_EXT C63 0 1uF DDR_EXT FLASH_WP 1...

Page 19: ...12 121F 120OHM R521 100K OPT C529 0 1uF 16V C532 390pF 50V IC501 EAN62868801 ADJ GND OUT IN R520 0 OPT L511 BLM18PG121SN1D C521 0 1uF 16V L509 3 6uH R526 15K 5 R559 2 2K C514 0 047uF 25V R533 3 3K 1 C519 22uF 10V 3 5V_ST P2300 SMAW200 H12S5K BK LTR 9 GND 4 D13V 8 A13V 3 GND 12 PDIM1 7 A13V 2 PDIM2 11 DRV_ON 6 D13V 1 PWR_ON 10 GND 5 D13V 13 C6001 0 1uF 50V R7003 100 C8006 0 1uF 50V 3 3V_NORMAL R700...

Page 20: ...D C749 0 1uF 16V HPD2 VDD_12_S DET_DVI C750 22uF 10V L707 BLM18SG121TN1D NON_EPA6 0 VDDA_33_S SII9489_SDA R766 68K R771 10K READY C734 0 1uF C745 1uF R717 15 C751 22uF 10V R728 1 IC702 SII9489ACTUC 1 AVDD33_1 2 R1XCN 3 R1XCP 4 R1X0N 5 R1X0P 6 R1X1N 7 R1X1P 8 R1X2N 9 R1X2P 10 AVDD33_2 11 R2XCN 12 R2XCP 13 R2X0N 14 R2X0P 15 R2X1N 16 R2X1P 17 R2X2N 18 R2X2P 19 AVDD12_1 20 DVDD12_1 21 R3XCN 22 R3XCP 2...

Page 21: ...0 1uF EEPROM_SDA DIN2 C97 0 1uF N_MAX IC13 NLASB3157DFT2G EAN38256201 ANALOG SWITCH ON SEMICONDUCTOR 3 B0 2 GND 4 A 1 B1 6 SELECT 5 VCC UART_ROUT1 UART_SW2 R215 0 N_MAX IC18 NLASB3157DFT2G EAN38256201 ANALOG SWITCH ON SEMICONDUCTOR N_MAX 3 B0 2 GND 4 A 1 B1 6 SELECT 5 VCC EEPROM_SW ROUT2 MST_NEC_RX RS232_TX 3 5V_ST 3 5V_ST NEC_EEPROM_SCL MST_NEC_TX R213 0 N_MAX NEC_RX NEC_EEPROM_SDA ANALOG_2 EEPRO...

Page 22: ...3 DETECT 4 L 5 GND 1 R JP613 C98 0 1uF 16V TMDS_DEMUX_SCL R286 0 R287 0 OPT IC21 MM3286CFBE 3 OS 2 SCL 4 GND 1 SDA 5 A2 6 A1 7 A0 8 VDD R284 10K R285 10K OPT R288 0 TMDS_DEMUX_SDA 3 3V_NORMAL R283 10K OPT R291 33 R292 33 JP358 JP359 R568 100 R569 100 KEY2 C2187 0 1uF 16V OPT JP360 R571 10K 1 C2188 0 1uF 16V OPT KEY1 3 5V_ST R570 10K 1 VA309 ADUC 5S 02 0R5L VA310 ADUC 5S 02 0R5L P309 12507WS 04L 1 ...

Page 23: ...0V OPT P601 3AU04S 305 ZC LG 1 5V_BUS 2 D 3 D 4 GND 5 GND C601 5pF 50V OPT 5V_USB1 SIDE_USB1_DM SIDE_USB1_DP D601 RCLAMP0502BA SIDE_USB2_DP C610 5pF 50V OPT 5V_USB2 SIDE_USB2_DM P602 3AU04S 305 ZC LG 1 5V_BUS 2 D 3 D 4 GND 5 GND C611 5pF 50V OPT D607 RCLAMP0502BA C605 22uF 10V OPT C604 22uF 10V C603 22uF 10V C614 22uF 10V OPT C612 22uF 10V C613 22uF 10V ZD601 5 6V KDZ5 6V ZD602 5 6V KDZ5 6V USB1 P...

Page 24: ...633 18K RGB_EEPROM_EDID VA601 R608 68 R615 4 7K READY DSUB_VSYNC 5V_ST DSUB_R VA604 RGB_DDC_SDA DSUB_DET DSUB_R C608 22pF READY DSUB_R 5V_NORMAL VA603 RGB_DDC_SCL R618 0 DDC5V_DSUB R614 0 READY R624 4 7K VA606 R604 1K C623 0 1uF D605 KDS184 READY A2 C A1 3 5V_ST R602 75 1 D610 30V MMBD301LT1G R601 75 1 DSUB_G DSUB_G VA602 R631 0 RGB_EEPROM_EDID R605 10K DDC5V_DSUB R610 510 RGB_DDC_SDA R623 4 7K R6...

Page 25: ...MER 7 NC_2 8 PBTL 9 AVSS 10 PLL_FLTM 11 PLL_FLTP 12 VR_ANA 13 AVDD 14 A_SEL_FAULT 15 MCLK 16 OSC_RES 17 DVSSO 18 VR_DIG 19 PDN 20 LRCLK 21 SCLK 22 SDIN 23 SDA 24 SCL 25 RESET 26 STEST 27 DVDD 28 DVSS 29 GND 30 AGND 31 VREG 32 GVDD_OUT 33 BST_D 34 PVDD_CD_1 35 PVDD_CD_2 36 OUT_D 37 PGND_CD_1 38 PGND_CD_2 39 OUT_C 40 NC_3 41 NC_4 42 BST_C 43 BST_B 44 NC_5 45 NC_6 46 OUT_B 47 PGND_AB_1 48 PGND_AB_2 4...

Page 26: ...X11 35 P54 EX12 36 P55 EX13 37 P56 EX14 38 P57 EX15 39 P17 EX31 TI02 TO02 40 P16 EX30 TI01 TO01 INTP5 41 P15 EX29 RTCDIV RTCCL 42 P14 EX28 RXD3 43 P13 EX27 TXD3 44 P12 EX26 SO00 TXD0 45 P11 EX25 SI00 RXD0 46 P10 EX24 SCK00 47 AVREF1 48 P110 ANO0 49 P111 ANO1 50 AVREF0 51 AVSS 52 P157 ANI15 53 P156 ANI14 54 P155 ANI13 55 P154 ANI12 56 P153 ANI11 57 P152 ANI10 58 P151 ANI9 59 P150 ANI8 60 P27 ANI7 6...

Page 27: ... AVDD33_1 9 RXD 0 10 RXD 1 11 RXD 2 INTB 12 RXD 3 CLK_CTL 13 RXC 14 DVDD33 15 TXC 16 TXD 0 17 TXD 1 18 TXD 2 19 TXD 3 20 TXEN 21 PHYRSTB 22 MDC 23 MDIO 24 LED0 PHYAD 0 PMEB 25 LED1 PHYAD 1 26 CRS CRS_DV 27 COL 28 RXER FXEN 29 DVDD10OUT 30 AVDD33_2 31 CKXTAL1 32 CKXTAL2 5 MDI 1 8 RXDV 6 MDI 1 4 MDI 0 2 AVDD10OUT 33 EP C905 0 01uF C908 15pF 50V R920 4 7K EPHY_RXD0 3 5V_ST_LAN R912 22 R909 22 READY E...

Page 28: ... 23 R1DP 24 NC 25 NC 26 NC or GND 27 NC 28 R2AN 29 R2AP 30 R2BN 31 R2BP 32 R2CN 33 R2CP 34 GND 35 R2CLKN 36 R2CLKP 37 GND 38 R2DN 39 R2DP 40 NC 41 NC 42 NC or GND 43 NC or GND 44 GND 45 GND 46 GND 47 NC 48 VLCD 49 VLCD 50 VLCD 51 VLCD 52 GND R1005 2K READY 3 3V_NORMAL URSA VCOM_SDA PANEL_VCC VCOM_SCL L1001 CIS21J121 URSA VCOM_SCL R1012 10K 60HZ_BIT_SEL_10BIT RXA3 VCOM_SCL RXA1 RXA4 VCOM_SDA R1006 ...

Page 29: ...MBT3904 NXP E B C C2284 33pF IC2100 AZ4580MTR E1 3 IN1 2 IN1 4 VEE 1 OUT1 5 IN2 6 IN2 7 OUT2 8 VCC JK2013 KJA PH 0 0177 3 DETECT 4 L 5 GND 1 R R2492 2 2K VA2022 5 6V AUDIO_OUT_L_AMP VA2025 5 5V L2100 BLM18PG121SN1D C2288 33pF R7104 100K 13V_AOUT R9010 100K 13V_A 13V_AOUT R7106 5 6K L2101 BLM18PG121SN1D C2292 2 2uF 10V C2281 10uF R2498 10K R7103 100K C2291 2 2uF 10V VA2023 5 6V C100 470pF 50V C101 ...

Page 30: ......

Page 31: ...L15 Signage Training Manual LGE Internal Use Only Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 32: ... SET Be careful before disassembling SET If you don t do that Wire Harness between Button and Main B d can be damaged Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 33: ...1 2 Power Block Diagram LPB 32SE3B Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 34: ...1 2 Power Block Diagram LPB 43SE3B Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 35: ...1 2 Power Block Diagram LPB 49 55SE3B Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 36: ...1 2 Power Block Diagram LPB 65SE3B Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 37: ...L15 Repair Process Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 38: ...6 Off when on off while viewing power auto on off 7 7 C Audio error No audio Normal video 8 8 Wrecked audio discontinuation noise 9 9 D Function error Remote control Local switch checking 10 10 External device recognition error 11 11 E Noise Circuit noise mechanical noise 12 12 F Exterior error Exterior defect 13 First of all Check whether there is SVC Bulletin in GCSC System for these model 9 Cop...

Page 39: ...rd or parts End Always check record S W Version and White Balance value before replacing the Main Board Replace Main Board Re enter White Balance value Precaution Established date Standard Repair Process Revised date 1 13 Signage Monitor Error symptom A Video error No video Normal audio A4 A1 A2 A7 A3 First of all Check whether all of cables between board is inserted properly or not Main B D Power...

Page 40: ...B D Y Replace Power Board and repair parts N End Standard Repair Process A Video error No video No audio A4 Established date Revised date 2 13 Error symptom 2014 06 10 11 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 41: ...ble Y External device Cable normal RGB DVI error Check external device and cable Replace Main B D Replace Main B D N N A Video error Color error A8 N Y End Replace module Request repair for external device cable Color error Check Test pattern A12 A10 Standard Repair Process Established date Revised date 4 13 Error symptom 2014 06 10 12 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right ...

Page 42: ...ing Jig pattern Generator Set top Box etc N Y Replace Main B D Screen normal Check screen condition by input External Input HDMI RGB DVI Request repair for external device RGB error HDMI DVI error Connect other external device and cable Check normal operation of External Input Component and HDMI DVI RGB by connecting Jig pattern Generator Set top Box etc Replace Main B D Screen normal N Y Check S ...

Page 43: ... STBY 8 8V Power On 13 2V N Y Normal voltage Replace Main B D Y OK Replace Main B D N Y Normal Check ST BY 3 5V at Main B D And Power output voltage Power output voltage to Main B D is 8 8V at ST BY Status Replace Power B D N Y Normal voltage Replace Power B D Y A18 A19 A4 Standard Repair Process Established date Revised date 6 13 Error symptom Close 2014 06 10 14 Signage Monitor Copyright ⓒ 2015 ...

Page 44: ...OFF_INSTOP Power off by INSTOP KEY POWEROFF_AUTOOFF Power off by AUTO OFF POWEROFF_ONTIMER Power off by ON TIMER POWEROFF_RS232C Power off by RS232C POWEROFF_RESREC Power off by Reservated Record POWEROFF_RECEND Power off by End of Recording POWEROFF_SWDOWN Power off by S W Download POWEROFF_UNKNOWN Power off by unknown status except listed case Abnormal POWEROFF_ABNORMAL1 Power off by abnormal st...

Page 45: ...ir parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A24 A25 Disconnection Established date Revised date 8 13 Error symptom Standard Repair Process 2014 06 10 16 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 46: ...eck other external device N Y Normal audio Check and fix external device Replace Power B D N Y Normal voltage Check input signal RF External Input signal Signal normal When RF signal is not received Request repair to external cable ANT provider Y Check 13 2V Voltage Pin no 7 8 Replace Main B D In case of External Input signal error Check and fix external device Replace Main B D N End Established d...

Page 47: ... Connector solder Normal operating Check B 3 5V On Main B D A27 Normal Voltage Close N N Check 13 2v on Power B D Replace Power B D or Replace Main B D Power B D don t have problem A4 Check IR Output signal Normal Signal N Y Repair Replace IR B D N A27 Replace Main B D Y A27 Standard Repair Process Established date Revised date 10 13 Error symptom 2014 06 10 18 Y 1 Remote control R C operating err...

Page 48: ...HDMI RGB DVI Optical Recognition error Replace Main B D Replace Main B D Fix in accordance with technical information D Function error External device recognition error Established date Revised date 11 13 Error symptom Standard Repair Process 2014 06 10 19 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 49: ...own in the solution manual For models without any fix information provide the description OR Mechanical noise is a natural phenomenon and apply the 1st level description When the customer does not agree apply the process by stage Describe the basis of the description in Part related to nose in the Owner s Manual E Noise Circuit noise mechanical noise Established date Revised date 12 13 Error sympt...

Page 50: ...troller Remote controller damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date 13 13 Error symptom Standard Repair Process 2014 06 10 21 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 51: ...onnection diagram A8 7 Check Link Cable LVDS reconnection condition A10 8 Adjustment Test pattern ADJ Key A12 9 A Video error_Vertical Horizontal bar residual image light spot Check Link Cable LVDS reconnection condition A10 A11 10 Adjustment Test pattern ADJ Key A12 11 Appendix Defected Type caused by Main Inverter Module Exchange LED driver Board PSU A 3 5 12 Exchange Module itself 1 A 4 5 13 Ex...

Page 52: ...ng POWER OFF MODE checking method A22 17 C Audio error_No audio Normal video Checking method in menu when there is no audio A24 18 Voltage and speaker checking method when there is no audio A25 19 D Function error_ No response in remote controller key error Remote controller operation checking method A27 Continued from previous page Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for t...

Page 53: ...th naked eye A Video error_No video Normal audio After turning on the power and disassembling the case check with the naked eye whether you can see light from module holes All MODELS A1 2014 06 10 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 54: ...2 Established date Revised date Error symptom Content A2 2014 06 10 1 Check the Voltage between LED LED 2 The Voltage spec is in Power B D spec sheet 3 Refer to the Power B D Spec sheet Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 55: ...Balance value A Video error_No video Normal audio ALL MODELS A3 Established date Revised date Error symptom Content A3 Entry method 1 Press the ADJ button on the remote controller for adjustment 2 Enter into White Balance of item 10 3 After recording the R G B GAIN Cut value of Color Temp Cool Medium Warm re enter the value after replacing the MAIN BOARD 2014 06 10 Signage Monitor Copyright ⓒ 2015...

Page 56: ...ontent A4 Check the 13 2V for Audio 2014 06 10 12 Pin Power Board Main Board SMAW200 H12S5K BK 1 PWR On 2 32 43 N C 49 55 PWM 2 3 GND 4 D 13 2 V 5 D 13 2 V 6 D 13 2 V 7 A 13 2 V 8 A 13 2 V 9 GND 10 GND 11 DRV On Inverter On 12 PWM 1 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 57: ... method for remote controller for adjustment Press the IN START with the remote controller for adjustment Version ALL MODELS A7 Established date Revised date Error symptom Content A7 2014 06 10 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 58: ...al image light spot As the part connecting to the external input check the screen condition by signal A8 Established date Revised date Error symptom Content A8 SE3B 2014 06 10 Signage Monitor 65SE3B Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 59: ...rror_Color error Check the contact condition of the Link Cable especially dust or mis insertion A10 Established date Revised date Error symptom Content A10 2014 06 10 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 60: ...the ADJ Key Checking item 1 Defective pixel 2 Residual image 3 MODULE error ADD BAR SCAN BAR 4 Video error Classification of MODULE or Main B D A12 Established date Revised date Error symptom Content A12 2014 06 10 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 61: ...er defect CNT Broken Solder defect CNT Broken Solder defect CNT Broken Abnormal Power Section Solder defect Short Crack Abnormal Power Section Solder defect Short Crack Appendix Exchange LVDS Cable or Main B D 1 Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 62: ...ection Solder defect Short Crack Fuse Open Abnormal power section Noise GRADATION GRADATION Abnormal Display Appendix Exchange LVDS Cable or Main B D 2 Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 63: ...icture Sound Ok Appendix Exchange Power Board No Light Dim Light Dim Light Dim Light A 3 5 Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 64: ...s damage Crosstalk Crosstalk Press damage Panel Mura Light leakage Press damage A 4 5 Un repairable Cases In this case please exchange the module Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 65: ... Source TAB IC Defect Horizontal Block Gate TAB IC Defect Horizontal line Gate TAB IC Defect Gate TAB IC Defect Horizontal Block Gate TAB IC Defect Appendix Exchange the Module 2 A 5 5 Un repairable Cases In this case please exchange the module Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 66: ...onitor Check the Main Power Voltage 4 5 6 Pin Power On DC On Status 13 2 V STBY Status 8 8 V 12 Pin Power Board Main Board SMAW200 H12S5K BK 1 PWR On 2 32 43 N C 49 55 PWM 2 3 GND 4 D 13 2 V 5 D 13 2 V 6 D 13 2 V 7 A 13 2 V 8 A 13 2 V 9 GND 10 GND 11 DRV On Inverter On 12 PWM 1 Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 67: ...19 2014 06 10 Check power on Pin 1 pin is high Signage Monitor 12 Pin Power Board Main Board SMAW200 H12S5K BK 1 PWR On 2 32 43 N C 49 55 PWM 2 3 GND 4 D 13 2 V 5 D 13 2 V 6 D 13 2 V 7 A 13 2 V 8 A 13 2 V 9 GND 10 GND 11 DRV On Inverter On 12 PWM 1 Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 68: ... Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A22 Established date Revised date Error symptom Content A22 2014 06 10 Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only ...

Page 69: ...ndard Repair Process Detail Technical Manual Checking method in menu when there is no audio C Audio error_No audio Normal video ALL MODELS A24 Established date Revised date Error symptom Content A24 2014 06 10 Signage Monitor 5 Sec OSD goes away 1 Press the 0 4 times 2 Press the OK Button Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use...

Page 70: ...s normal Standard Repair Process Detail Technical Manual Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video A25 Established date Revised date Error symptom Content A25 2014 06 10 SE3B Main Ass y Signage Monitor 12 Pin Power Board Main Board SMAW200 H12S5K BK 1 PWR On 2 32 43 N C 49 55 PWM 2 3 GND 4 D 13 2 V 5 D 13 2 V 6 D 13 2 V 7 A 13 2 V 8 A 13 2 V 9 G...

Page 71: ... when it does not move at all Standard Repair Process Detail Technical Manual Remote controller operation checking method D Function error_ No response in remote controller key error A27 Established date Revised date Error symptom Content A27 JK602 M5 GND M4 3 5V_ST M3 NC M1 IR JK602 2014 06 10 SE3B Models Signage Monitor Copyright ⓒ 2015 LG Electronics Inc All right reserved Only for training and...

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