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Only training and service purposes

ADJUSTMENT INSTRUCTION

1.Application

1.1 This document is applied to LM8CA chassis 27UL550 & 27UL500 LCD Monitor which is manufactured in Monitor Factory or is

producedonthebasisofthisdata.

1.2ManufacturingType:SET



2.Designation

2.1Theadjustmentisaccordingtothe orderwhichisdesignatedandwhichmustbefollowed,according totheplan whichcanbe

changedonlyonagreeing.

2.2.PowerAdjustment:FreeVoltage

2.3.MagneticFieldCondition:Nil.

2.4.InputsignalUnit:ProductSpecificationStandard

2.5.Reserveafteroperation:Above5Minutes(HeatRun)

Temperature:at25℃±5°C/Relativehumidity:65±10%/Inputvoltage:100~240V,50/60Hz

2.6.Adjustmentequipments:ColorAnalyzer(CA‐210orCA‐110),DDCAdjustmentJigequipment,



3.MainPCBcheckprocess(SMT)

 *APC‐AfterManual‐Insult,executingAPC



3.1ADCProcess

‐27UL550/27UL500doesn’tneedADCprocessbecauseithasonlydigitalinputlikeDisplayPort,HDMI.



3.2MainPCBFunctiontest

‐Checkdisplay/audioaccordingtointerface

3.3WriteHDCP2.2Key

a.WriteHDCPKeyintoFlashmemorybyusingDDC2ABprotocol&HDCPAdjustmentJigequipment.

HDCP2.2WriteCommand:E9AddressHighAddressLowex)E90000

*Theremustbeinputsignal.NoinputsignalcausestheHDCPKeywritefail.

*HDCP1.4Keyisembeddedonscaler.



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LG 27UL500 Specifications

General

3D	-
Pixel pitch	0.1554 x 0.1554 mm
Screen shape	Flat
Display surface	Matt
Display diagonal	27 \
Display technology	LED
Native aspect ratio	16:9
Maximum refresh rate	- Hz
sRGB coverage (typical)	98 %
Contrast ratio (typical)	1000:1
Display number of colors	1.073 billion colors
Display brightness (typical)	300 cd/m²
Supported graphics resolutions	3840 x 2160
High Dynamic Range (HDR) supported	Yes
Cables included	DisplayPort, HDMI
Package type	Box
Package depth	146 mm
Package width	700 mm
Package height	446 mm
Package weight	7100 g
Panel mounting interface	100 x 100 mm
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (off)	0.3 W
Power consumption (standby)	0.5 W
Power consumption (PowerSave)	- W
Product color	Silver
Market positioning	Gaming
DisplayPort version	1.4
VGA (D-Sub) ports quantity	0

Weight and Dimensions