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LCD-related symptoms
Important: The TFT LCD for the notebook computer contains many
If the LCD you are servicing has two or less visible defective pixels, it should not be considered faulty. However, if the LCD has three or more visible defective pixels, it will be deemed as defective by Lenovo and it should be replaced.
Notes:
vThis policy applies to all ThinkPad Notebooks purchased on 1 January, 2008 or later.
vLenovo will not provide replacement if the LCD is within specification as we cannot guarantee that any replacement LCD will have zero pixel defects.
vOne pixel consists of R, G, B
Table 6.
Symptom or error | FRU or action, in sequence | ||
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No beep, | System board. | ||
blank LCD during POST. |
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v LCD backlight not working. | 1. | Reseat the LCD connectors. | |
v | LCD too dark. | 2. | LCD assembly. |
v LCD brightness cannot be adjusted. | 3. | System board. | |
v LCD contrast cannot be adjusted. |
|
| |
v | LCD screen unreadable. | 1. | See important note for |
v | Characters missing pixels. |
| symptoms.” |
v | Screen abnormal. | 2. | Reseat all LCD connectors. |
v | Wrong color displayed. | 3. | LCD assembly. |
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| 4. | System board. |
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| ||
Horizontal or vertical lines displayed on | LCD assembly. | ||
LCD. |
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