Acer AL1713bm Service Manual page 30

2.4 At 16-gray scale pattern, color lost in some scale
2.5 If brightness uniform, change Inverter or Panel.
2.6 If you find the vertical line on the screen, please change panel.
Color lost in some scale at 16-gray scale pattern
Re-insert the FFC Cable
Change FFC Cable
Change M/B
NO
NO
29
OK,
END
OK,
END