Lenovo ThinkPad T410 Hardware Maintenance Manual - Page 57

Table 6. LCD-related symptoms, Characters missing pixels. - no backlight

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• Lenovo will not provide replacement if the LCD is within specification as we cannot guarantee that any replacement LCD will have zero pixel defects. • One pixel consists of R, G, B sub-pixels. Table 6. LCD-related symptoms Symptom or error No beep, power-on indicator on, and a blank LCD during POST. • LCD backlight not working. • LCD too dark. • LCD brightness cannot be adjusted. • LCD contrast cannot be adjusted. • LCD screen unreadable. • Characters missing pixels. • Screen abnormal. • Wrong color displayed. Horizontal or vertical lines displayed on LCD. FRU or action, in sequence System board. 1. Reseat the LCD connectors. 2. LCD assembly. 3. System board. 1. See important note for "LCD-related symptoms." 2. Reseat all LCD connectors. 3. LCD assembly. 4. System board. LCD assembly. Chapter 4. Related service information 51

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• Lenovo will not provide replacement if the LCD is within specification as we cannot guarantee that any
replacement LCD will have zero pixel defects.
• One pixel consists of R, G, B sub-pixels.
Table 6. LCD-related symptoms
Symptom or error
FRU or action, in sequence
No beep, power-on indicator on, and a blank LCD during
POST.
System board
.
•
LCD backlight not working.
•
LCD too dark.
•
LCD brightness cannot be adjusted.
•
LCD contrast cannot be adjusted.
1.
Reseat the LCD connectors
.
2. LCD assembly.
3. System board.
•
LCD screen unreadable.
•
Characters missing pixels.
•
Screen abnormal.
•
Wrong color displayed.
1.
See important note for “LCD-related symptoms.”
2. Reseat all LCD connectors.
3. LCD assembly.
4. System board.
Horizontal or vertical lines displayed on LCD.
LCD assembly
.
Chapter 4
.
Related service information
51