LG 27UL550 - DPM Operation Check; White Balance Check; Check HDR

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4.5Whitebalancecheck
‐.Beforethefactorycalibration,checktheWhitebalanceaccordingtobelowspecification.
HDMI1920x1080(or3840x2160),FullWhite
Tolerance:‐/+0.015/LuminanceSpec(min):250
Checkcondition:custommode(outgoingcondition)
AgingTime[min] x y
2 0.319 0.339
4 0.318 0.338
8 0.318 0.337
10 0.317 0.336
25 0.316 0.333
40 0.315 0.331
255 0.313 0.329
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*Note:
ManualW/Bprocess
1)WheninDCOffCondition
2)Pressleftbutton3‐timesandthenrightbutton1‐times,presspowerbutton
3)PressMenu(right‐sideofOSD)buttonandcanseeServiceMenu.
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4.6CheckHDR
‐.Beforethefactorycalibration,checktheWhitebalanceaccordingtobelowspecification.
1)HDRModecheck(HDMI)
‐.Equipment:MSPG‐7800
‐.CheckPoint:HDROSDbutthisOSDdisapperinfewseconds
 
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4.7DPMOperationcheck
■MeasurementCondition:100~240V@50/60Hz
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Only training and service purposes
1)SetInputtoDisplayPort, HDMI1,HDMI2