No-Beep Symptoms; Lcd-Related Symptoms - Lenovo ThinkPad T530i Hardware Maintenance Manual

Table 4. Beep symptoms (continued)
Symptom or error
Five short beeps
One long and two short beeps

No-beep symptoms

Table 5. No-beep symptoms
Symptom or error
No beep, power-on indicator on, LCD blank, and no
POST.
No beep, power-on indicator on, and LCD blank during
POST.
The power-on password prompt appears.
The hard-disk password prompt appears.

LCD-related symptoms

Important: The TFT LCD for the notebook computer contains many thin-film transistors (TFTs). The
presence of a small number of dots that are missing, discolored, or always lighted is characteristic of TFT
LCD technology, but excessive pixel problems can cause viewing concerns. 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:
• This policy applies to all ThinkPad notebook computers purchased on 1 January, 2008 or later.
• Lenovo will not provide warranty replacement if the LCD is within specifications because 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
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Hardware Maintenance Manual
FRU or action, in sequence
System board
System board
FRU or action, in sequence
1. Make sure that every connector is connected
tightly and correctly.
2. Memory module
3. System board
1. Reseat the memory module.
2. System board
A power-on password or a supervisor password is set.
Type the password and press Enter.
A hard-disk password is set. Type the password and
press Enter.
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