Samsung NP900X4D, Service Manual, Page: 65 / 73

4. Trouble shooting
4.7. Other
RTC Battery Reset
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The system apart and remove the battery.
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Remove the RTC battery
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Using the tool like as tweezer, connect two nodes for about 20~30sec.
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Then Bios rom will be reseted.
Check the battery use environment
1) Generally, the battery usage time in advertisements by notebook manufacturers refers to the maximum battery use time.
Since the system specifications and the usage environment may differ, the user's battery usage time may differ from the
advertisement even if there is no problem with the system.
2) Conditions for the company's maximum battery use time
a) Minimum LCD brightness, base system, the wireless LAN R/F is turned
off, BatteryManager-Maximum Battery Mode
b) Measuring Tool: BatteryMark v.4.0.1
3) If a customer complains about the battery usage time, let them know that the battery usage time may differ depending
on the model specifications and the usage environment and recommend the following usage environment for longer
battery time.
a) Use the company's power-saving program, BatteryManager, and set BatteryManager to Maximum Battery Mode.
b) LCD brightness: Set to the minimum level as long as the user does not experience inconvenience.
c) Disable unnecessary devices
d) Turn the wireless LAN R/F switch off and disable USB devices (DMB, fingerprint recognition and Bluetooth)
Refer to attachment The method of Battery check.
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Please Refer to the Training manual chapter4.Trouble Shooting.
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