NBLB2 Service Manual
9
2. System Controls
2.1
Buttons
2.1.1
Power Button
The activity of the power button is as follows:
If system is Off/Hibernate: System will be turned on while Power switch is
depressed by more than 100 ms
If system is in Standby state: System will resume while Power switch is
depressed by more than 100 ms.
If system on with legacy mode: depress this button will turn off power.
If system is running in ACPI OS, the power button acts as the sleep button, and let
OS controls the policy of power button which is defined in Power Option under the
OS.
2.1.2
Power Button Over-ride
Holding down the Power Button for 4 seconds will cause an unconditional transfer
to the off state without notifying the operating system.
2.1.3
Lid switch
If the system is running under legacy mode:
Closing the lid will turn off LCD backlight.
If the system is running under ACPI mode:
The operating system will determine what action to take when the lid is opened
and closed.
The function of lid switch will follow the OS setting in power management (Nothing,
Standby or Hibernate). If nothing, the backlight must turn off when the lid is closed.
2.2
System status indicators
Please refer to Keyboard BIOS specification.
3. Core BIOS Features
3.1
Multi Boot
The notebook can support Multi-Boot for selecting the boot sequence of Hard Drive,
Removable Devices, CD-ROM/DVD Drive and Network in Setup.
3.2
Quiet Boot
Quiet Boot replaces the customary technical messages during POST with a more
visually pleasing and comfortable display (OEM screen). During POST, right after
the initialization of VGA, The notebook displays an illustration called the OEM
screen during system boot instead of the traditional POST screen that displays the
normal diagnostic messages.
The OEM screen stays up until just before the operating system loads unless:
Pressing <Esc> to switch to the POST screen and the boot process will
continue until the end of POST.
Pressing <F2> to enter Setup.
Содержание NBLB2
Страница 1: ...NBLB2 Service Manual...
Страница 6: ......
Страница 7: ...1 Chapter 1 System Description Specification...
Страница 12: ...NBLB2 Service Manual 6 Chapter 2 Software Specification...
Страница 66: ...NBLB2 Service Manual 60 Chapter 3 Hardware...
Страница 69: ...NBLB2 Service Manual 63 Chapter 4 DC DC Converter...
Страница 74: ...NBLB2 Service Manual 68 VOLTAGE IDENTIFICATION CODES...
Страница 75: ...NBLB2 Service Manual 69...
Страница 76: ...NBLB2 Service Manual 70...
Страница 83: ...NBLB2 Service Manual 77 Chapter 5 Disassembly Guide...
Страница 89: ...NBLB2 Service Manual 83 4 Grasp the module and pull it out...
Страница 97: ...NBLB2 Service Manual 91 3 Them remove LVDS cable and microphone cable speaker cable 4 Remove the LCD module...
Страница 100: ...NBLB2 Service Manual 6 Gently lift out the display Remove eight screws securing the hinges to the display...
Страница 103: ...NBLB2 Service Manual 97 3 Lift off the logic upper...
Страница 111: ...NBLB2 Service Manual 97 3 Lift off the logic upper...
Страница 118: ...NBLB2 Service Manual Chapter 6 Testing and Troubleshooting...
Страница 121: ...NBLB2 Service Manual 107 Figure 6 1 Troubleshooting flowchart 1 2...
Страница 122: ...NBLB2 Service Manual Figure 6 1 Troubleshooting flowchart 2 2...
Страница 124: ...NBLB2 Service Manual 3 Power Supply Troubleshooting Figure 6 2 Power Supply Troubleshooting Process...
Страница 129: ...NBLB2 Service Manual 115 4 Display Troubleshooting Figure 6 3 Display troubleshooting process...
Страница 132: ...5 Keyboard Troubleshooting Figure 6 4 Keyboard troubleshooting process...
Страница 134: ...6 External USB Devices Troubleshooting Figure 6 5 External USB device troubleshooting process...
Страница 136: ...7 CRT troubleshooting Figure 6 6 CRT troubleshooting process...
Страница 138: ...8 HDMI troubleshooting Figure 6 7 HDMI troubleshooting process...
Страница 140: ...9 Touch Pad Troubleshooting Figure 6 8 Touch Pad troubleshooting process...
Страница 142: ...10 Speaker Troubleshooting Figure 6 9 Speaker troubleshooting process...
Страница 144: ...11 CD ROM DVD Troubleshooting Figure 6 10 CD ROM DVD drive troubleshooting process...
Страница 146: ...12 Wireless LAN Troubleshooting Figure 6 11 Wireless LAN troubleshooting process...
Страница 148: ...The system board may be damaged Replace it with a new one following the instructions in Chapter...