お客様の Windows タブレット PC を落としてしまい、画面の左半分のタッチ入力が反応しなくなってしまいました。画面保護フィルムには数か所の傷があります。しかしガラスは割れていない。問題を診断するために技術者が行うべきことは次のうちどれですか?
正解:A
The digitizer is the component that converts the touch input into electrical signals that are processed by the tablet. If the digitizer is damaged or malfunctioning, it may not register the touch input correctly or at all. The technician can test the digitizer using a diagnostic tool or by replacing it with a known good one. Updating the device drivers, replacing the damaged screen protector, or performing a factory reset are unlikely to fix the issue, as they do not address the hardware problem.