Acer X221 Service Guide - Page 45

Missing Color, Missing Color, Change, Cable, R1,R5,R10, Change U4, or CN2 Cable, or Panel,

Page 45 highlights

2. Missing Color Change NO Cable Change NO R1,R5,R10, U2 NO Change U4 or CN2 Cable or Panel NO Adjustment R/G/B Color Missing Color Check VGA Cable Yes Check R27,R29,R31 Yes Check CN2 LVDS Signal Yes Check OSD R/G/B Gain Yes Change Panel

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