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LG FLATRON 29UM68 Service Manual
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LG FLATRON 29UM68 Service Manual

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COLOR MONITOR
SERVICE MANUAL
CHASSIS NO. : LM55I
MODEL:
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL68962210(1601-REV00)
North/Latin America
Europe/Africa
Asia/Oceania
29UM68
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in China

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Summary of Contents for LG FLATRON 29UM68

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com COLOR MONITOR SERVICE MANUAL CHASSIS NO. : LM55I 29UM68 MODEL: CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. Printed in China P/NO : MFL68962210(1601-REV00)

  • Page 2: Table Of Contents

    SPECIFICATIONS..................6 TIMING CHART ..................11 ADJUSTMENT ..................14 BLOCK DIAGRAM...................18 TROUBLE SHOOTING ................19 EXPLODED VIEW .................. 22 SVC. SHEET ....................Copyright © 2010 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Precaution

    CAUTION Please use only a plastic screwdriver to protect yourself from shock hazard during service operation. Copyright © 2010 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Servicing Precautions

    Copyright © 2010 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 CAUTION: Maintain original spacing between the replaced component and adjacent components and the circuit board to prevent excessive component temperatures. Copyright © 2010 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specifications

    Manual:19V 2.4A P/No Specification LM290WW2 Applying module list EAJ62987701 LM290WW2-SSA1 Manual CD Etc (accessory) Support Weight : 85g Copyright © 2010 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 3. Optical Character Luminance Contrast Minimum Normal Maximum Pattern Coordinate (cd/m2) Ratio 0.365 Reader Typ-0.030 Typ+0.030 White 0.360 Copyright © 2010 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 : 700(MIN), 1000(TYP), Contrast Ratio(명암비) Super 1,000,000:1(min), 5,000,000:1(Typ.) energy saving off Response Time (Gray to Gray): 14ms(Typ.), 28ms(Max) Copyright © 2010 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
  • Page 9 White 56.5W (Typ.) Adjust brightness On/O controls until the EPA6.0 Active White luminance of the screen is 200(cd/m2). Copyright © 2010 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 TRANSPAREN 0~100 Brightness 0 - 100 Quick 0 - 100 Contrast MENU Settings 0 – 100, Mute Volume Copyright © 2010 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 & Saturation) Magenta, Yellow) Reset Reset, Cancel ON,OFF MaxxAudio MaxxAudio MaxxBass -3~+3 Settings Sound MaxxTreble -3~+3 MaxxDialog -3~+3 Maxx3D -3~+3 Copyright © 2010 LG Electronics. Inc. All right reserved. -11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 Power LED On, Off Automatic 8H, 6H, 4H, Off Standby Buzzer OFF,ON On, Off OSD Lock Reset, Cancel Reset Copyright © 2010 LG Electronics. Inc. All right reserved. -11 - LGE Internal Use Only Only for training and service purposes...
  • Page 13 C: The Distance from The Top of Active Area to the Bezel D: The Distance from The Bottom of Active Area to the Bezel Copyright © 2010 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only...
  • Page 14 Special Item Need to Input Serial Number(HDMI 1) ** Protocol : DDC 2AB 3.1.2.2EDID Ver. 1.3 FOR HDMI 1 (256Byte) Copyright © 2010 LG Electronics. Inc. All right reserved. - 13- LGE Internal Use Only Only for training and service purposes...
  • Page 15 3.1.2.3EDID Ver. 1.3 FOR HDMI 2 (256Byte) (256Byte)Freesync OFF 3.1.2.4EDID Ver. 1.4 FOR Display Port Copyright © 2010 LG Electronics. Inc. All right reserved. - 14- LGE Internal Use Only Only for training and service purposes...
  • Page 16 3.1.3PBP EDID Data ( 128 Bytes ) - DTD1: 1280 X 1080@60Hz - DTD2: 2560 X 1080@60Hz 3.1.3.1 EDID Ver. 1.3 FOR HDMI 1 (256Byte) Copyright © 2010 LG Electronics. Inc. All right reserved. - 15- LGE Internal Use Only Only for training and service purposes...
  • Page 17 3.1.3.2 EDID Ver. 1.3 FOR HDMI 2 (256Byte) 3.1.3.3 EDID Ver. 1.4 FOR Display Port (256Byte) Copyright © 2010 LG Electronics. Inc. All right reserved. - 16- LGE Internal Use Only Only for training and service purposes...

  • Page 18: Timing Chart

    1080 1280 x H(Pixels) 67.5 1560 1280 105.3 1080 V(Lines) 1125 1080 (PBP only) HDMI support timing ：mode2.4.6.9.10.12.13.14.15 Copyright © 2010 LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19 (Preset Mode) (KHz) (Hz) 480P 31.5 576P 31.25 720P 37.5 720P 1080P 56.25 1080P 67.5 Copyright © 2010 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...

  • Page 20: Adjustment

    1. DisplayPort1.2 (2560 x 1080 @60Hz) 2. Dual-link DVI (2560 x 1080 @60Hz) 3. HDMI1/2 (2560 x 1080 @60Hz) Copyright © 2010 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
  • Page 21 0.333 0.329 * Save Warm(6500K) Color by commanding COLOR SAVE Command code. 4.3 Adjust PRESET Cool(9300K) Color coordinates. Copyright © 2010 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
  • Page 22 Operating. Time Within 2Hours Make sure to do FACTORY RESET at the final process. (Under HDMI 1 input) Copyright © 2010 LG Electronics. Inc. All right reserved. - 22 - LGE Internal Use Only Only for training and service purposes...
  • Page 23 0x91 4:HDMI2 SYSTEM RESET Restart System 00:English, 0x00 ~ 01: German Select Language 0x0F 02: French 03: Spanish Copyright © 2010 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes...
  • Page 24 Explanation Adjustment contents CMD(hex ) 16-Byte Write EEPROM WRITE n-byte Write (84+n) * Use FOS Default write : Copyright © 2010 LG Electronics. Inc. All right reserved. - 24 - LGE Internal Use Only Only for training and service purposes...
  • Page 25 DDC2B Command.(A0/A1) . . . START START Data1 Data128 STOP - 128 Byte transfer of EDID Buffer of MICOM Copyright © 2010 LG Electronics. Inc. All right reserved. - 25 - LGE Internal Use Only Only for training and service purposes...

  • Page 26: Block Diagram

    BLOCK DIAGRAM (Main) Copyright © 2010 LG Electronics. Inc. All right reserved. - 26 - LGE Internal Use Only Only for training and service purposes...

  • Page 27: Trouble Shooting

    TROUBLESHOOTING GUIDE 1. NO POWER Copyright © 2010 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...
  • Page 28 2. NO RASTER (OSD IS NOT DISPLAYED) – MAIN Copyright © 2010 LG Electronics. Inc. All right reserved. - 28 - LGE Internal Use Only Only for training and service purposes...
  • Page 29 3. Trouble in DPM Copyright © 2010 LG Electronics. Inc. All right reserved. - 28 - LGE Internal Use Only Only for training and service purposes...

  • Page 30: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 Location is Side (Option: Angle) 29UM68/34UM68 [HDMI1_Straight] [HDMI2_Angle] JK101 JK102 51V019S-35SN-CR2-B-LG 51V019S-35SN-CR2-B-LG AR105 HDMI2 AR201 DATA2+ DATA2+ HDMI1_RX2+ HDMI2_RX2+ DATA2_SHIELD HDMI1_RX2- DATA2_SHIELD HDMI2_RX2- HDMI1_RX1+ HDMI2_RX1+ DATA2- DATA2- HDMI1_RX1- HDMI2_RX1- DATA1+ DATA1+ DATA1_SHIELD DATA1_SHIELD DATA1- DATA1- AR106 AR200 DATA0+ DATA0+ HDMI1_RX0+...
  • Page 32 Control key WHITE_LED BLM18PG121SN1D L200 +5V_STANDBY +3.3V_NORMAL RED_LED P200 BLM18PG121SN1D 12507WR-08L L201 R219 R221 AR204 JP200 KEY1 READY READY Removed DVI input from UM67 KEY2 R262 R231 JP201 4.7K 4.7K From TMDS Switch input to HDMI2 input +3.3V_NORMAL * NOTE 1.
  • Page 33 [MAIN IC POWER LINE - CAPACITOR] +3.3V_NORMAL +1.15V_VDDC +1.15V_VDD_DDR_A +1.8V_DDR2 VDD_DRAM_A AVDD_DP_RX L300 L306 L310 close to Scalar P11, P22 close to Scalar P113,P114,P115 close to Scalar Pin106, P107 BLM18PG121SN1D BLM18PG121SN1D BLM18PG121SN1D READY READY C302 C319 C348 C358 C370 C393 C326 C335 C362...
  • Page 34 DC-JACK (Straight Type) +19V JK400 JP400 KJA-DC-1-0032 For Jig Test (GND JIG Point) C410 C409 0.1uF 68uF 105C JP401 +3.3V_NORMAL +5V_STANDBY +1.15V_VDDC +5V_STANDBY +1.8V_DDR2 +5V_STANDBY 29inch IC403 R411 MP2122GJ 29inch R434 R437 29inch IC401 C414 0.1uF MP2315GJ R432 R435 200K 200K 29inch R402...
  • Page 35 29 inch LED Driver + DC-DC 34 inch LED Driver + DC-DC High : 1.5V High : 1.5V +19V +19V 34inch 34inch 34inch L502 D500 IC500 IC501 L505 D501 WLED_ADIM WLED_ADIM 33uH BR210 33uH BR210 MP3378 READY READY [EP]GND READY MP3378 READY [EP]GND...
  • Page 36 Speaker AMP Headphone AMP IC601 TPA6138A2 L601 10uH P600 SMAW250-H04R +INR +INL C640 C647 C639 180pF C649 +19V_AMP 180pF R610 R634 R637 R640 R647 -INR -INL C611 SPK_L+ HP_ROUT_MAIN HP_LOUT_MAIN 2.2uF JP605 C629 R615 C641 C644 R636 R644 33K->10K 0.22uF 4.7K C619 10pF...