Acer Aspire ZS600 Acer Aspire ZS600 Desktop Service Guide - Page 211

and the arrows in the picture above.

Page 211 highlights

Change the calibration fixture to 9 vertical lines, and do the lineation from left to right with line from upper to lower to calibrate verticality with the touch pen (Refer to the sequence of 1→ 2 → 3 → 4 → 5 → 6 → 7 → 8 → 9 and the arrows in the picture above). Troubleshooting 4-17

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