Acer X221 Service Guide - Page 29
Factory 2 Adjustment, AUTO BURN, AUTO COLOR, COLOR UPDATE, FACTORY RESET - driver
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R,G,B GAIN: Adjust current RGB Driver value. SPREAD : Adjust chip set internal frequency spread effect for EMI testing . Factory 2 Adjustment: This page only visible in factory mode AUTO BURN: Use the chip set internal pattern for hot running monitor panel and inverter. AUTO COLOR : Perform Auto Balance measurement . COLOR UPDATE: Force presently R,G,B offset and gain parameters update to currently temperature memory address. FACTORY RESET: Recall to factory setting and power off immediately. Display F/W version and panel vender and DDC serial no. - 29 -