Acer AL1515 AL1515 LCD Monitor Service Guide - Page 20

The step between front bezel and back cover shall be within specification. - specifications

Page 20 highlights

The step between front bezel and back cover shall be within specification. Top and Bottom Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm Left and Right Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm Back Cover & Hinge Cover concavity 0mm ≤ B ≤ 0.5mm - 20 -

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