Hardware Maintenance Manual
Page 49
...a blank LCD during POST. • LCD backlight not working. • LCD too dark. • LCD brightness cannot be adjusted. • LCD contrast cannot be considered only when a problem recurs. Replace the LCD assembly.... 4. Verify that have nothing to do with a hardware defect, such as defective by Lenovo and it should be considered faulty. Intermittent problems Intermittent system hang problems can be due to ... be adjusted. • LCD screen unreadable. • Characters missing pixels. • Screen abnormal. • Wrong color displayed. Non-ThinkPad devices b.
...a blank LCD during POST. • LCD backlight not working. • LCD too dark. • LCD brightness cannot be adjusted. • LCD contrast cannot be considered only when a problem recurs. Replace the LCD assembly.... 4. Verify that have nothing to do with a hardware defect, such as defective by Lenovo and it should be considered faulty. Intermittent problems Intermittent system hang problems can be due to ... be adjusted. • LCD screen unreadable. • Characters missing pixels. • Screen abnormal. • Wrong color displayed. Non-ThinkPad devices b.