LG 27UD59 Service Manual

Color monitor chassis no. : lm6ha

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Owner's manual (33 pages)

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COLOR MONITOR

SERVICE MANUAL

CHASSIS NO. : LM6HA

MODEL:

CAUTION

BEFORE SERVICING THE UNIT,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL62449347(1706-REV00)

North/Latin America

Europe/Africa

Asia/Oceania

27UD59

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 27UD59

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. : LM6HA 27UD59 MODEL: CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL62449347(1706-REV00) Printed in China...
Page 2 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 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 5 Length : 1.8m / Shape : Detachable Type SET accessory / DP to Mini DP / Color : black P/N : EAD63127601(Ver1.2) Weight : 0.105kg Copyright © 2010 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
Page 6 SET accessory / Refer to BOM Support Free-Sync function P/No Specification 27” Module Applying module list LM270WR3-SPA1 EAJ63871001 23.8” Module LM238WR2-SPD1 EAJ63871201 Copyright © 2010 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
Page 7 Cabinet : High glossy + Texture Back cover : Texture Appearance General Stand body : High glossy Base : High glossy Copyright © 2010 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
Page 8 Full red pattern 0.250 0.652 0.334 0.307 GREEN RGB COLOR coordi 0.637 Typ-0.03 Typ+0.03 nates 0.150 BLUE 0.060 Copyright © 2010 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 9 :100 – 240 Vac, 50 or 60Hz DisplayPort 10-bit color Color depth HDMI1 / HDMI2 Deep Color(10bit, 12bit) Impedance HDMI 100 ohm(-+10%) Copyright © 2010 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
Page 10 1 – 100 Quick Volume 1 – 100 Menu Settings Input HDMI1 / HDMI2 / DP Ratio Wide / Original Copyright © 2010 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
Page 11 Gamma Gamma 2 / off Color Temp Custom/Warm/Medium/Cool Color 0 -100 Adjust Green 0 - 100 Blue 0 -100 Copyright © 2010 LG Electronics. Inc. All right reserved. -12 - LGE Internal Use Only Only for training and service purposes...
Page 12 Off / 4H / 6H / 8H DP 1.2 Enable / Disable OSD Lock On / Off Reset Reset / Cancel Copyright © 2010 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
Page 13 5.2 Open Source License If Need Open Source Use Manual License (in Web) Source (in Web) 27UD59 24UD59 Copyright © 2017 LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
Page 14 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. - 15 - LGE Internal Use Only...
Page 15 Special Item 6.1.1.1 HDMI1 EDID (HDMI1.4) 1) Physical Address : HDMI1=10 6.1.1.2 HDMI1 EDID (HDMI1.4) 1) Physical Address : HDMI1=20 Copyright © 2010 LG Electronics. Inc. All right reserved. - 16- LGE Internal Use Only Only for training and service purposes...
Page 18 2.1.3.1 DP EDID of FREE-SYNC ON Extended mode 2.1.3.1 DP EDID of FREE-SYNC ON Basic mode Copyright © 2010 LG Electronics. Inc. All right reserved. - 19- LGE Internal Use Only Only for training and service purposes...
Page 19 3840 x 2160 V(Lines) 2222 2160 H(Pixels) 133.32 4000 3840 3840 x 2160 V(Lines) 2222 2160 2) Main Recommended Timing Copyright © 2010 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
Page 20 3840 x 2160 V(Lines) 2250 2160 H(Pixels) 4400 3840 3840 x 2160 V(Lines) 2250 2160 2) Main Recommended Timing Copyright © 2010 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
Page 21 -. HDCP 2.2 KEY (New, Refer to 27MU67/27UD68/27UD88 Writing process) a. Write HDCP Key into EEPROM by using DDC2AB protocol & HDCP Adjustment Jig equipment. If error is occurred, try to write again. Copyright © 2017 LG Electronics. Inc. All right reserved. - 22 - LGE Internal Use Only...
Page 22 *Note : 1) When in DC OFF Condition 2) and push the Menu Button and On Button at the same time for about 3 secoemd Copyright © 2010 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only...
Page 23 Operating Condition LED(SET) Wattage(W) or Video (MSPG6100) Sleep mode Off/Off White blinking 0.5W Off mode DC Switch Off 0.3W Copyright © 2010 LG Electronics. Inc. All right reserved. - 24 - LGE Internal Use Only Only for training and service purposes...
Page 24 Green Color Adjust Blue Six Color (Hue/Saturation) Reset Language Depend on the sale region Smart Energy General Saving Copyright © 2010 LG Electronics. Inc. All right reserved. - 25 - LGE Internal Use Only Only for training and service purposes...
Page 25 00-64 BRIGHT(Backlight) 00-64 Tune Analog Bright FACTORY RESET Factory reset AUTO COLOR Tuning AUTO_COLOR_ADJUST 0:Auto color COLOR_MODE_CHANG 6500K Copyright © 2010 LG Electronics. Inc. All right reserved. - 26 - LGE Internal Use Only Only for training and service purposes...
Page 26 PROM Slave Address(A0,A2,A4,A6,A8,AA,AC,AE), Not 00h(Reserved by Buffer To EEPROM) ADL : E PROM Sub Address(00~FF) Data : Write data Delay : 20ms 6.5.2. Command Set Copyright © 2010 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...
Page 27 5-Page 0~7F Read 5-Page 80~FF Read 6-Page 0~7F Read 6-Page 80~FF Read 7-Page 0~7F Read 7-Page 80~FF Read Copyright © 2010 LG Electronics. Inc. All right reserved. - 28 - LGE Internal Use Only Only for training and service purposes...
Page 28 START START Data1 . . . Data128 A STOP - 128 Byte transfer of EDID Buffer of MICOM Copyright © 2010 LG Electronics. Inc. All right reserved. - 29 - LGE Internal Use Only Only for training and service purposes...
Page 30 Is IC 400 CHECK IC400 PIN2(3.3V) Is IC200 CHECK CRYSTAL X200 PIN95,PIN96 PULSE CHECK IC200 X200 IC401-#2 IC401-#3 IC400 Copyright © 2010 LG Electronics. Inc. All right reserved. -31 - LGE Internal Use Only Only for training and service purposes...
Page 31 2. Trouble in IC200 12MHz CHECK CONNECTION Is IC200 PIN3 From HDMI TO IC200 PIN4 I2C Trouble in cable or LCD module Copyright © 2010 LG Electronics. Inc. All right reserved. -32 - LGE Internal Use Only Only for training and service purposes...
Page 32 CHECK PC. PC is going to the Check the Signal DPM mode input CHECK Signal cable Check Signal connection cable DET pin Trouble in IC200 Copyright © 2010 LG Electronics. Inc. All right reserved. -33 - LGE Internal Use Only Only for training and service purposes...
Page 33 3. Assemble and disassemble method ■ Disassemble method 1.Remove the Screw 1EA 1. Remove the stand 1. Disassemble the Rear shield assy and hinge assy and all cable. 1.Disassemble from top ->left/right ->top corner . 1.The open status top/side of both , one hand was supported module, and open the Back cover.
Page 34 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 35 PORT NO.:HDMI1 (HDMI2.0) Headphone AMP HDMI2.0 SWITCH IC100 TPA6138A2 20150820 Request from component development team JK100 SEL1 SEL2 before : EAG61491201 YKF45-7058V after : EAG59023302 => HDMI 1 +INR +INL C121 C320 C323 => HDMI 2 R141 R148 180pF C341 180pF R135 R153...
Page 36 +5V_STANDBY P201 MODULE-eDP Joystick Key IIC for Debugging 05030HR-H30C1(G) (from MP, delete this parts) DE_BUG P202 12507WS-04L +3.3V_NORMAL +3.3V_NORMAL L202 DE_BUG P200 BLM15PX121SN1 AR207 RED LED OPT 12507WR-08L JP202 DE_BUG C200 AR200 JP201 +3.3V_NORMAL R213 R214 3.3K 3.3K EDP3- R216 JP204 EDP3+ KEY1...
Page 37 MAIN IC POWER LINE - CAPACITOR +3.3V_NORMAL +1.8V_DDR VDD_DRAM_A AVDD_PLL +1.15V_VDD_DDR_A L111 +1.15V_VDD close to Q1 L116 close to Q1 BLM18PG121SN1D BLM18PG121SN1D L100 close to Q1 C175 C181 C187 BLM18PG121SN1D C191 C196 C213 C255 10uF 10uF 0.1uF 0.1uF 0.1uF C233 C241 ->...
Page 38 SCALER DC-DC BLOCK P400 +12V JP400 SMAW200-12 R416 PD_CTLZ_1.8V +1.8V_DDR C421 20160310 CJLIM +5V_STANDBY 0.1uF IC404 C410 C409 VI idea 68uF 0.1uF APW7415 L407 R407 4.7uH 20160224 CJLIM HW Board test R447 C450 C444 C452 C454 0.1uF 0.1uF 10uF 10uF ZD401 R448 C405...
Page 39 +12V +12V_AMP AUDIO AMP : Full Range R523 AMP_12V (AD : Low) +3.3V_AMP Q503 SSM3J332R L504 10.0uH AMP_RESET_N Idc : 2.4A R503 C506 L501 C507 4.7K 1000pF R504 C531 C529 22000pF R518 C527 BLM18PG121SN1D audio bit clk 2.2uF 4.7uF C523 R508 +3.3V_NORMAL AUD_SCK...

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