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P/NO :

CHASSIS :

MODEL :

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

SERVICE MANUAL

Copyright © 2016 - 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.

CONFIDENTIAL

P/NO : MFL69413815 (1801-REV00)

LED MONITOR

SERVICE MANUAL

LM61A

38WK95C

38WK95C-WF

38BK95C

38BK95C-WF

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Summary of Contents for 38BK95C

Page 1: ...D THE SAFETY PRECAUTIONS IN THIS MANUAL SERVICE MANUAL Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes CONFIDENTIAL P NO MFL69413815 1801 REV00 LED MONITOR SERVICE MANUAL LM61A 38WK95C 38WK95C WF 38BK95C 38BK95C WF ...

Page 2: ...Electronics Inc All rights reserved Only training and service purposes CONTENTS 2 SAFETY PRECAUTIONS 3 SPECIFICATION 4 TROUBLE SHOOTING GUIDE 7 BLOCK DIAGRAM 8 EXPLODED VIEW 9 DISASSEMBLY 10 DOWNLOAD APPENDIX CONTENTS ...

Page 3: ...l 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 meta...

Page 4: ...C H P OUT Audio L R 8 Power Cord Length 1 55 0 05m Refer to Suffix standard and power cord Table Weight 0 17kg 10 Color White 9 Cable USB Type C Length 1 5 0 05m P N EAD63932603 Refer to BOM Weight 0 06kg 10 Color White USB A To C Gender Length 0 04145m 0 0003 m P N EAG61410704 Refer to BOM Weight 0 006kg 10 Color White Impedance 90 Ω 15Ω DisplayPort Length 1 50m 0 05m P N EAD63749403 Refer to BOM...

Page 5: ... 750 720 5 5 20 6 H Pixels 108 63 981 1688 1280 48 112 248 1280x1024 V Lines 60 02 1066 1024 1 3 38 7 H Pixels 108 60 1800 1600 24 80 96 1600 x 900 V Lines 60 1000 900 1 3 96 8 H Pixels 146 25 65 29 2240 1680 104 176 280 1680x1050 V Lines 59 954 1089 1050 3 6 30 9 H Pixels 148 5 67 5 2200 1920 88 44 148 1920x1080 V Lines 60 1125 1080 4 5 36 10 H Pixels 174 5 83 894 2080 1920 48 32 80 1920x1080 V L...

Page 6: ... Horizontal frequency Horizontal frequency Preset Mode KHz Hz 1 640x480P 31 47 60 2 720x480P 31 47 60 3 1280x720P 45 60 4 1920x1080P 67 5 60 5 1280x720P 37 5 50 6 1920x1080P 56 25 50 7 2560x1080P 56 25 60 8 2560x1080P 66 50 9 720x576P 31 25 50 10 1920x1080I 33 75 60 11 1920x1080I 28 125 50 2 3 HDMI Video input ...

Page 7: ... saving Location No IC202 4 LED driver IC Supporting proper voltage and current according to BLU spec Location No IC600 IC601 5 Headphone AMP Amplify audio signal from Main IC and then provide amplifying signal to H P interface Location No IC503 6 USB C PD Controller Set the signal from USB C input and communicate with Source Device Location No IC801 7 Mux IC Separate DP and USB signal of USB C in...

Page 8: ...em EEPROM 32KB I2C TS3DV642 Switch USB Type C EDID EEPROM 내장 HP Out L R Out HP AMP USB Type A USB Type A USB To UART TUSB3410 EEPROM 32KB MUX DP Signal PD Controller Control DP USB 3 0 USB HUB USB 3 0 USB 2 0 I2C UART I2C CC통신 USB 2 0 WLED_ENABLE WLED_ADIM Flash Memory 8M SPI HDMI 2 0 E DP DC DC D D VBUS 5V Billboard TUSB3410 EEPROM 256KB I2C D D USB Type A USB2 0 only Service only NTP7515 NTP7515...

Page 9: ...hanical parts in this chassis have special safety related characteristics 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 ...

Page 10: ...SSEMBLY 1 Preparation 1 1 Preparation tool jig 1 2 Preparation tool Curved PAD 2 Stand Assembly Separation 1 Lay the set by the Curved PAD in Box 2 Disassemble the Stand after pull the button to down 3 Disassemble the Thumb Screw 4 Remove the Screw 4ea 5 Disassemble the Back Cover By using JIG ...

Page 11: ...l rights reserved Only training and service purposes 6 Disconnect LED Cable Control Assemble Latch Type Bluetooth PCB cable FFC cable Speaker 7 Disconnect Control Assemble BT PCB Latch Type 8 Remove the screw 4EA 9 Remove the screw 18EA ...

Page 12: ...DOWNLOAD Copyright ⓒ 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 13: ...r can not automatically update driver in PC please check whether internet normally operate or the system of Windows can update Step4 Check a installed driver of Mstar ISP USB in device manager Installing a driver port should be shown as USB Serial Port however port number can be different Connect PC using a USB type A And type B Connect HDMI cable to the HDMI1 port of monitor Copyright ⓒ 2016 2017...

Page 14: ...lick Connect button after connecting HDMI cable to HDMI1 port of monitor If monitor can communicate normally ISP the following pop up should be shown as Device Type is MX25L8005 1 Firmware download method Copyright ⓒ 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 15: ... FW 1 Firmware download method Step7 Make sure match the checksum Please ensure that it matches the checksum E3AD between file name E3AD EX UC99_MST9U11Q1_MSTAR_V2 07_E3AD_rev2728_160720 bin Copyright ⓒ 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 16: ...setting option The File Area of erase device should be selected in order to maintain system and factory calibration data 3 Click Run button 1 Firmware download method 3 1 2 Copyright ⓒ 2016 2017 LG Electronics Inc All rights reserved Only training and service purposes ...

Page 17: ...vXXXX_16XXXX bin to the folder of LG_MNT Note The downloading feature does not work properly when using the download file from the company security 4 Please remove the plastic which is marked as DO NOT USE on the monitor s rear 5 Please insert the USB memory stick to the USB 2 0 port Title Monitor F W update feature supports through a SVC USB port For Oversea Product MNT Product Name Monitor Model...

Page 18: ...ent monitor the updating feature will be normally worked 3 User can choice whether or not performing a updating feature by the selection of user Factory Condition Aging On 1 After searching the highest version in LG_MNT folder of USB the updating feature has been automatically performed regardless of the current version of monitor Common When the updating feature is completed monitor will turn off...

Page 19: ...emoved and reconnected after inserting an USB memory stick including FW in the determined folder Note After searching the highest version in LG_MNT folder of USB the recovering feature has been automatically performed After 40 seconds the monitor will be normally recovered by itself Q The power turns off suddenly during updating PD FW under 50 status of progress bar how can I do After turning on t...

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