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TROUBLE SHOOTING GUIDE

Copyright

ⓒ

2018 LG Electronics Inc. All rights reserved.

Only training and service purposes.

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Содержание 43SM5KE

Страница 1: ...luding by way of email facsimile or other electronic means publication modification copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual The material covered by this prohibition includes without limitation any text graphics or logos in this Service Manual MFL...

Страница 2: ...ronics Inc All rights reserved Only training and service purposes CONTENTS CONTENTS 2 PRECAUTION 3 SERVICING PRECAUTIONS 5 SPECIFICATION 7 SOFTWARE UPDATE 10 BLOCK DIAGRAM 11 EXPLODED VIEW 12 TROUBLE SHOOTING GUIDE APPENDIX ...

Страница 3: ...the electronic circuit C MOS Make certain that treatment person s body are grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time The module not be exposed to the direct sunlight Avoid contact with water as it may a short circuit within the module If the surface of panel become dirty please wipe it off with a softmaterial Cleaning with...

Страница 4: ... ved fejlagtig håndtering Udskiftning må kun ske med batteri af samme fabrikat og type Levér det brugte batteri tilbage til leverandøren ATTENTION II y a danger d explosion s il y a remplacement incorrect de la batterie Remplacer uniquement avec une batterie du même type ou d un type équivalent recommandé par le constructeur Mettre au rebut les batteries usagées conformément aux instructions du fa...

Страница 5: ...by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge buildup or ex...

Страница 6: ...nts 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 a...

Страница 7: ...DMI Display Port PC Specification 1 Application range This specification is applied to the LW82A chassis 2 Test Specification Each part is tested as below without special appointment 1 Temperature 25 C 5 C 77 F 9 F CST 40 C 5 C 2 Relative Humidity 65 10 3 Power Voltage Standard input voltage 100 240 V 50 60 Hz Standard Voltage of each products is marked by models 4 Specification and performance of...

Страница 8: ...tereo L R 6 ohm Max 10W SM5E External Speake Optional Built In Speaker SH7E SM5KE Audio Out O SE Stereo L R 0 5Vrms 3P 3 5mm Phone Jack 3 External RS232C IN OUT O UART Comm w IR Daisy Chain 4P 3 5mm Phone Jack IR Bright ness Sensor O External box type 5P 3 5mm Phone Jack LAN O RJ45 100Base T only SuperSign CMS SuperSign Control 4 Special Feature Temp Sen sor O MM3286CFBE 85 C Protection Built in C...

Страница 9: ...Hz Hz Total Cycle E Display A Front Porch B Sync D Back Porch F Resolu tion Support 1 H Pixels 40 37 879 1056 800 40 128 88 800 x 600 O V Lines 60 317 628 600 1 4 23 2 H Pixels 65 48 363 1344 1024 24 136 160 1024 x 768 O V Lines 60 806 768 3 6 29 3 H Pixels 74 5 44 772 1664 1280 64 128 192 1280 x 720 O V Lines 59 855 748 720 3 5 20 4 H Pixels 85 86 47 7 1800 1366 72 144 216 1366 x 768 O V Lines 60...

Страница 10: ...e Copying files from memory 4 Updating is starting 5 Updating Completed The Signage Set will restart automati cally 6 If your SIGNAGE SET is turned on check your updated version and Tool option explain the Tool option next stage If downloading version is more high than your SIGNAGE SET have SIGNAGE SET can lost all channel data In this case you have to channel recover if all channel data is cleare...

Страница 11: ...o AMP SPK External 20W 10W x2EA eMMC EYE_SDA SCL Wafer 51P 4Gb DDR4 4 16Gb 2GB LVDS eMMC M0 M1 I2C I2C PHY I2C I2S DAC USB 2 0 USB 3 0 8GB R x 3 R x 2 R x 1 OP AMP D P _Rx0 A UD IO IN Load Switch 전 류 센서 VCC 1 920 x 1 080 60P A udio In D P OUT TX DP I2C Level Shift 5V 3 3V EEPROM_VCC EEPROM_P U 8Key Power Set Up Down Menu Input RTC EEPROM 16Kb MUX 2 H D MI3 A B B A O P S AUDIO Audio In 2분할 RS 232C ...

Страница 12: ...acteristics These parts are identified by in the 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 200 400 540 120 510 530 810 500 800 541 542 121 LV1 AR1 ARC1 700 AM1 ...

Страница 13: ...TROUBLE SHOOTING GUIDE Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 14: ...ewing power auto on off 5 6 C Audio error No audio Normal video 6 7 Wrecked audio discontinuation noise 7 8 D Function error Remote control Local switch checking 8 9 External device recognition error 9 10 E Noise Circuit noise mechanical noise 10 11 F Exterior error Exterior defect 11 First of all Check whether there is SVC Bulletin in GSCS System for these model Copyright ⓒ 2018 LG Electronics In...

Страница 15: ...air Power Board 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 11 Monitor Signage Error symptom A Video error No video Normal audio A4 A1 A2 A5 A3 First of all Check whether all of cables between board is inserted properly or not M...

Страница 16: ... and replace MAIN 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 11 Error symptom 2 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 17: ...rror Check color by input HDMI RGB DVI DP Y Check external device and cable Replace Main B D N A6 N Y End Replace module Request repair for external device cable Color error A7 All video error Error only for specific input external device cable Normal Check S W Version Y Check version S W Upgrade Y Normal screen End End N N Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and ...

Страница 18: ...ent at each status 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 A10 A11 A4 Standard Repair Process Established date Revised date 4 11 Error symptom Close 4 Monitor Signage Copyright ⓒ...

Страница 19: ...y SLEEP TIMER POWEROFF_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...

Страница 20: ...ower Board and repair parts Check Speaker disconnection N Y Replace Speaker Replace MAIN Board End C Audio error No audio Normal video A13 A14 Disconnection Established date Revised date 6 11 Error symptom Standard Repair Process 6 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 21: ...nput Connect and check 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 ...

Страница 22: ...ir Cable connection Connector solder Normal operating Check B 3 5V On Main B D A15 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 A15 Replace Main B D Y A15 Standard Repair Process Established date Revised date 8 11 Error symptom 8 Y 1 Remote control R C operati...

Страница 23: ...rnal device cable HDMI RGB DVI DP 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 9 11 Error symptom Standard Repair Process 9 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 24: ...then proceed as shown 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...

Страница 25: ...et Replace remote control Remote control damage Stand dent Replace stand F Exterior defect Exterior defect Established date Revised date 11 11 Error symptom Standard Repair Process 11 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 26: ...ecking method A5 6 LCD TV connection diagram A6 7 Check Link Cable LVDS reconnection condition A7 8 Adjustment Test pattern ADJ Key A9 9 A Video error_Vertical Horizontal bar residual image light spot Check Link Cable LVDS reconnection condition A7 10 Adjustment Test pattern ADJ Key A9 11 Appendix Defected Type caused by Main Inverter Module Exchange LED driver Board PSU A 3 5 12 Exchange Module i...

Страница 27: ...1 16 B Power error_Off when on off while viewing POWER OFF MODE checking method A12 17 C Audio error_No audio Normal video Voltage and speaker checking method when there is no audio A13 18 D Function error_ No response in remote control key error Remote control operation checking method A14 Continued from previous page Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and servi...

Страница 28: ...LCD back light with 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 Monitor Signage A Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 29: ...deo Normal audio A2 Established date Revised date Error symptom Content A2 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 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 30: ... symptom Content A3 Entry method 1 Press the ADJ button on the remote control for adjustment 2 Enter into White Balance of item 14 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 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 31: ...vised date Error symptom Content A4 Check the 13 2V for Audio 12 Pin Power Board Main Board SMAW200 H12S5K BK 1 PWR On 2 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 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 32: ...ror video lag stop 1 Checking method for remote control for adjustment Press the IN START with the remote control for adjustment Version ALL MODELS A5 Established date Revised date Error symptom Content A5 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 33: ...ical Horizontal bar residual image light spot As the part connecting to the external input check the screen condition by signal A6 Established date Revised date Error symptom Content A6 Monitor Signage All Models Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 34: ...condition A Video error_Color error Check the contact condition of the Link Cable especially dust or mis insertion A7 Established date Revised date Error symptom Content A7 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 35: ... of patterns using 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 A9 Established date Revised date Error symptom Content A9 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 36: ...T Broken Solder 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 ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 37: ...rmal Power Section Solder defect Short Crack Fuse Open Abnormal power section Noise GRADATION GRADATION Abnormal Display Appendix Exchange LVDS Cable or Main B D 2 Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 38: ...No picture Sound Ok Appendix Exchange Power Board No Light Dim Light Dim Light Dim Light A 3 5 Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 39: ... Light leakage Press damage Crosstalk Crosstalk Press damage Panel Mura Light leakage Press damage Un repairable Cases In this case please exchange the module Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 40: ...ertical Block 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 ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 41: ...t A10 Monitor Signage 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 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 ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 42: ...te Error symptom Content A11 Check power on Pin 1 pin is high Monitor Signage 12 Pin Power Board Main Board SMAW200 H12S5K BK 1 PWR On 2 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 ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 43: ...t item 3 Standard Repair Process Detail Technical Manual POWER OFF MODE checking method B Power error _Off when on off whiling viewing ALL MODELS A12 Established date Revised date Error symptom Content A12 Monitor Signage Copyright ⓒ 2018 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 44: ... terminal the speaker is normal Standard Repair Process Detail Technical Manual Voltage and speaker checking method when there is no audio C Audio error_No audio Normal video A13 Established date Revised date Error symptom Content A14 All models Main Ass y Monitor Signage 12 Pin Power Board Main Board SMAW200 H12S5K BK 1 PWR On 2 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...

Страница 45: ...d defective when it does not move at all Standard Repair Process Detail Technical Manual Remote control operation checking method D Function error_ No response in remote control key error A14 Established date Revised date Error symptom Content A15 JK6201 M7 GND M4 3 5V_ST M3 NC M1 IR M6 EYE_SCL M5 EYE_SDA All Models Monitor Signage JK4100 Copyright ⓒ 2018 LG Electronics Inc All rights reserved Onl...

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