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System Introduction1-29 The following processes are the basic methods used to implement the LCD brightness AutoDim.
1. If the original brightness is over 75% and the AC power is on-line, the BIOS will change the
brightness to 75% after the AC power is off-line.
2. If the original brightness is below 75%, the brightness maintains the same level even if the AC
power is off-line.
3. If the brightness is already changed by the hotkey under DC power, it will not be changed after
the AC power is plugged in.
4. If the brightness is not changed by the hotkey under DC power, the brightness will be changed
back to the old setting — the previous brightness parameter under AC power.
5. If the previous brightness parameter does not exist, the brightness will not be changed in
1.5.2 Drivers, Applications and Utilities
The notebook comes preloaded with the following software:
· Windows 953
· System utilities and application software4
· Sleep Manager utility
· Display drivers
· Audio drivers
· PC Card slot drivers and applications
· Other third-party application software
Table 1-36Location of Drivers in the System Utility CDDevice CategoryFunctionLocationSound, video and game controllersAudioENGLISH\WIN95\AUDIO\MouseMouseENGLISH\WIN95\MOUSE\Display adaptersVideoENGLISH\WIN95\VGA\PCMCIAZoomed Video PortEnglish\Win95\PCMCIA\ 3
In some areas, a different operating system may be pre-loaded instead of Windows 95.
The system utilities and application software list may vary.
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1-30Service GuideTo re-install applications under Windows 95, click on Start, then Run…. Based on the location of
the application, run the setup program to install the application. The following table lists the
applications and their locations:
Table 1-37Location of Applications in the System Utility CDNameFunctionLocationSleep Manager0V Suspend utilityENGLISH\WIN95\SLEEPMGR\Y-StationAudio applicationENGLISH\WIN95\YstationSafeOFFProtect if user accidentally press the power switchENGLISH\WIN95\SAFEOFFDrivers for Windows 3.x and Windows NT are also found in the System Utility CD if you should
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System Introduction1-31 1.6 Block Diagrams
1.6.1 SystemAUD BDConn.
PCI BusPCI Bus
ISA BusISA BusCPU BusCPU Bus
AMPLM4836Figure 1-12System Block Diagram
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1-32Service Guide1.6.2 ClockCLK GEN
72Figure 1-13Clock Block Diagram
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System Introduction1-33 1.7 Environmental Requirements
Table 1- 38Environmental RequirementsItemSpecificationTemperatureOperating (ºC)+5~ +35Non-operating(ºC)-20 ~ +60HumidityOperating (non-condensing)20% ~ 80%Non-operating (non-condensing)20% ~ 80%Operating Vibration (unpacked)Operating5 - 25.6Hz, 0.38mm; 25.6 - 250Hz, 0.5GSweep rate0.5 octave / minuteNumber of test cycles2 / axis (X,Y,Z)Non-operating Vibration (unpacked)Non-operating5 - 27.1Hz, 0.6G; 27.1 - 50Hz, 0.41mm; 50-500Hz, 2GSweep rate0.5 octave / minuteNumber of text cycles4 / axis (X,Y,Z)Non-operating Vibration (packed)Non-operating5 - 62.6Hz, 0.51mm; 62.6-500Hz, 4GSweep rate0.5 octave / minuteNumber of text cycles4 / axis (X,Y,Z)ShockOperating5G peak, 11±1ms, half-sineNon-operating (unpacked)40G peak, 11±1ms, half-sineNon-operating (packed)50G peak, 11±1ms, half-sineAltitudeOperating
10,000 feet (5°C ~ 40°C)Non-operating
40,000 feet (-10°C ~ 60°C)ESDAir discharge8kV (no error)
12.5kV (no restart error)
15kV (no damage)Contact discharge4kV (no error)
6kV (no restart error)
8kV (no damage)