Asus U50F - Manual (Page 64)

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Common Problems and Solutions (Cont.)
Hardware Problem - Battery
Battery maintenance.
1. Register the Notebook PC for a one-year-warranty using the following website:
http://member.asus.com/login.aspx?SLanguage=en-us
2. Do NOT remove the battery pack while using the Notebook PC with the AC adaptor to prevent
damage caused by the accidental power loss. The ASUS battery pack has protection circuitry to
prevent over-charging so it will not damage the battery pack if it is left in the Notebook PC.
3. Store the battery pack in a dry location with temperatures between 10℃ and 30℃ if you will not
be using it for a long time. It is strongly recommended that you charge the battery pack every three
months.
Hardware Problem - Power ON/OFF Error
I cannot power ON the Notebook PC.
Diagnostics:
1. Power On by Battery only? (Y = 2, N = 4)
2. Able to see BIOS (ASUS Logo)? (Y = 3, N = A)
3. Able to load the OS? (Y = B, N = A)
4. Adapter power LED ON? (Y = 5, N = C) 5. Power ON by Adapter only? (Y = 6, N = A)
6. Able to see BIOS (ASUS Logo)? (Y = 7, N = A)
7. Able to load the OS? (Y = D, N = A)
Symptom & Solutions:
A. Problem might be in the MB, HDD, or NB; visit a local service center for assistance.
B. Problem caused by the operating system, try restoring your system using the recovery partition or disc.
(IMPORTANT: You must backup all your data to another location before recovering.)
C. Adapter problem; check the power cord connections, otherwise visit a local service center for
replacement.
D. Battery problem; please check the battery contacts, otherwise visit a local service center for repair.
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