Acer AT4220A AT4220A Service Guide - Page 42

Line Fuse The AC input shall be fused and become electrically open as a result of an unsafe current condition. This fuse is inside the power supply converter and is not user replaceable, and must be returned for replacement. This fuse shall be well-selected to handle inrush current for all combinations of line voltage and frequency. Overall Dimension Unit: mm Environment Requirements Operating Storage and Shipping Altitude 25o +/- 5o for purity, white point, mis-convergence, luminance measurements and white uniformity measurement Operating temperature: Operating humidity: 0oC to 35oC 10% to 90% (non-condensing) Storage temperature: Shipping temperature: Storage humidity: Shipping temperature: -20oC to 60oC -20oC to 60oC 10% to 90% (non-condensing) 10% to 90% (non-condensing) Operating altitude: Shipping altitude: Storage altitude: 0 to 12,000 feet 0 to 40,000 feet 0 to 40,000 feet Units tested at an altitude up to 12,000 feet must operate at normal conditions without exhibiting abnormal behavior such as arcing or shutdown. 36 Chapter 1