LG 34UM61 Service Manual

LG 34UM61 Service Manual

Chassis: lm55d
Hide thumbs Also See for 34UM61:

Advertisement

LED MONITOR
SERVICE MANUAL
SERVICE MANUAL
CHASSIS :
MODEL : 34UM61
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL70139801(1701 -REV00)
LM55D
Internal Use Only

Advertisement

Table of Contents
loading

Summary of Contents for LG 34UM61

  • Page 1 Internal Use Only LED MONITOR SERVICE MANUAL SERVICE MANUAL CHASSIS : LM55D MODEL : 34UM61 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL70139801(1701 -REV00)
  • Page 2: Table Of Contents

    ... . DISASSEMBLY ..................21 TROUBLE SHOOTING GUIDE .............. 25 - 2 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3: Safety Precautions

    An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 4: Specification

    Back cover Input:19V 2.0A P/No Specification CDMS module Applying module list EAT63403001 LM340WW1-SJC1 EAJ63909701 Etc (accessory) Manual CD Support - 4 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 2784 2560 2560 x 185.58 1080 V(Lines) 1111 1080 DVI : DTV Mode is not supported (interlace mode)  - 5 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 6 Vertical mode frequency frequency (Preset Mode) (KHz) (Hz) 480P 31.5 576P 31.25 720P 37.5 720P 1080P 56.25 1080P 67.5 - 6 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7: Adjustment Instruction

    3.3 Function Check 3.3.1 Check Screen ■ Check input and signal items. (cf. work instructions) 1. HDMI1/2 (2560 x 1080 @60Hz) - 7 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 8 0.007 than x,y target of each color temperature. .. Manual W/B process *Note : - 8 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 3) Check DPM operation refer to the below table. Sync (H/V) Operating Condition LED(SET) Wattage(W) or Video (MSPG6100) Sleep mode Off/Off White blinking Off mode - 9 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 10 TRANSPARENCY Operating. Time Within 2Hours  Make sure to do FACTORY RESET at the final process.(Under HDMI 1 input) - 10 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 3:HDMI2 SYSTEM RESET Restart System 00:English, 01: German 0x00 ~ Select Language 02: French 0x0F 03: Spanish 04: Italian - 11 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 6.5.1 Siganl TABLE START 84+n ADL A Data_1 . . . Data_n STOP Delay 20m LEN : 84h+Bytes CMD : E8h - 12 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 1-Page 80~FF Read 2-Page 0~7F Read 2-Page 80~FF Read 3-Page 0~7F Read 3-Page 80~FF Read 4-Page 0~7F Read 4-Page 80~FF Read - 13 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 14 DDC2AB Command.(A8) START START Data1 . . . Data128 STOP - 128 Byte transfer of EDID Buffer of MICOM - 14 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15: Firmware Upgrade Method

    1 JIG connection 2 Execute Realtek ISP Tool Connect the HDMI cable and USB cable on LG JIG like below picture. Execute [ RTDtool.Exe] file Connect HDMI cable on the monitor and connect USB cable on the PC 4 Install USB Driver...
  • Page 16 5 Set Access Method 6 Set options Select [ USB] on Access Method Uncheck the Check ACK checkbox FTDI Copyright © 2012 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 17 8 set Erase Setting Select [ ISP ] Icon Click the Tool Icon to enter the ISP option window Select Erase Setting tab and choose Bank Erase Copyright © 2012 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 18 Click the thunderbolt icon box to do ISP. file window, select the ISP file After finishing it, you can see [Success] text on the status window Copyright © 2012 LG Electronics Inc. All rights reserved. Only for training and service purposes...
  • Page 19: Block Diagram

    BLOCK DIAGRAM LVDS ( 41pin) LVDS ( 51pin) (P400) (P401) - 19 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 20: E X P L O D E D V

    Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 20 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21: Disassembly

    Fig.1、2 Put the MNT on the clean and flat surface, disassembly the stand assy(press down joy button) Fig. 3 Remove the Screw(4EA) Fig 4 Remove the deco - 21 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 Fig 5 Remove bottom screw(4EA) Fig 6 Disassemble the backcover Fig 7 Remove FFC、 control cable and control PCB - 22 - Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 Fig 8 Remove bottom metal bar assy Fig 9 Remove T-con sheet Copyright © LG Electronics. Inc. All rights reserved. - 23 - LGE Internal Use Only Only for training and service purposes...
  • Page 24 Fig 10 Remove case top assy Fig 11 module picture Copyright © LG Electronics. Inc. All rights reserved. - 24 - LGE Internal Use Only Only for training and service purposes...
  • Page 25: Troubleshooting Guide

    Check IC801 Output Replace IC801 & Voltage Level (1.1V, Recheck 3.3V) Check X100 Clock Replace X100 14.318MHz Replace IC101 Flash Memory Copyright © 2010 LG Electronics. Inc. All right reserved. - 25- LGE Internal Use Only Only for training and service purposes...
  • Page 26 Repair Main B/D P101(#10,11,22,23) Check FFC Cable for Damage or Replace Cable Open Conductors Replace T-Con Board or Module Copyright © 2010 LG Electronics. Inc. All right reserved. - 26- LGE Internal Use Only Only for training and service purposes...
  • Page 27 0 for proper Replace Connector connection or Damage Check I2C Re Download EDID Signal(JK200,201,2 Data 02,P200 Replace Main Scaler (IC100) Copyright © 2010 LG Electronics. Inc. All right reserved. - 27- LGE Internal Use Only Only for training and service purposes...

This manual is also suitable for:

34um61p

Table of Contents