Acer Extensa 365 Service Guide

							System Introduction1-21
Table 1-32 Hibernation Mode Conditions and Descriptions
ConditionDescription
The condition to
enter Hibernation
ModeThere are two necessary conditions for the computer to enter standby mode:
· Heuristic Power Management Mode must be set to [ENABLED].
· The hibernation file created by Sleep Manager must be present and valid.
In this situation, the following are ways to enter hibernation mode:
· Pressing the sleep hot key Fn-F7
· “Hard Disk Drive” is not [Disabled] in System Security of BIOS SETUP.
· “Hard Disk 0” is not [None] in Basic System Configuration of BIOS SETUP.
· If the waiting time determined by the computer’s HPM unit elapses without any
system activity.
· If a battery low condition takes place, the computer enters hibernation mode in
about three minutes.  The Sleep Upon Battery-low parameter in Setup must be set
to [ENABLED].
· Invoked by the operating system power saving modes
The condition of
Hibernation Mode· Except the RTC, KB controller and power switch, all the system components are
off.
The condition back
to On Mode· Pressing the power switch.
· Resume Timer matched
DISPLAY STANDBY MODE
Screen activity is determined by the keyboard, the built-in touchpad, and an external PS/2 pointing
device.  If these devices are idle for the period determined by the computer’s HPM unit, the display
shuts off until you press a key or move the touchpad or external mouse.
Table 1-33 Display Standby Mode Conditions and Descriptions
ConditionDescription
The condition to enter
Display Standby Mode· Pointing device is idle until Display Standby Timer times-out or LCD cover is
closed.
The condition of
Display Standby Mode· All the system components are on except LCD backlight and CRT
horizontal frequency output (if CRT is connected)
The condition back to
On Mode· Any keystroke (Internal KB or External KB)
· Pointing device activity
The VGA BIOS should support DPMS (Desktop Power Management System) for the
standby and hibernation mode function call. When the Display Standby Timer
expires, the system BIOS will execute the DPMS service routines.
HARD DISK STANDBY MODE
The hard disk enters standby mode when there are no disk read/write operations within the period of
time determined by the computer’s HPM unit.  In this state, the power supplied to the hard disk is
reduced to a minimum.  The hard disk returns to normal once the computer accesses it. 
						

							1-22Service Guide
Table 1-34 Hard Disk Standby Mode Conditions and Descriptions
ConditionDescription
The condition to enter HDD Standby
ModeDisplay Standby HPM timer times-out or LCD cover is
closed.
The condition of HDD Standby Mode All the system components are on except HDD spindle motor
The condition back to On Mode Any access to HDD
BATTERY LOW
W hen the battery capacity is low and no adapter is plugged in, the system will generate the following
battery low warning:
· Flash power LED with 1 Hz.
· Issue 4 short beeps per minute (if enabled in setup).
· If the AC adapter does not plug in within 3 minutes and the “Standby/Hibernation upon Battery-
low” in BIOS SETUP is enabled, the system will enter Standby/0-Volt Hibernation Mode.  The
battery low warning will stop as soon as the AC adapter is plugged into the system.
THE AUTODIM PROCESS OF THE LCD BRIGHTNESS
The notebook has a unique 
“automatic dim” power saving feature.  W hen the notebook is using
AC power and you disconnect the AC adapter from the notebook, the system “decides” whether or
not to automatically dim the LCD backlight to save power.
If the LCD backlight is too bright, the system automatically adjusts it to a manageable level;
otherwise, the level stays the same.  If you want a brighter picture, you can then adjust the
brightness and contrast level using hotkeys (Fn-F2).
If you reconnect AC power to the system, the system automatically adjusts the LCD backlight to its
original level — the brightness and contrast level before disconnecting the AC adapter.  If you
adjusted the brightness and contrast level after disconnecting AC power, the level stays the same
after you reconnect the AC adapter.
There are two reasons for the notebook to have the LCD AutoDim feature. The first is to save the
power during the notebook is operating under the DC mode.  The second is to save the “favorite”
brightness parameter set by the user. 
						

							System Introduction1-23
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
process 4.
1.4.2  Drivers, Applications and Utilities
The notebook comes preloaded with the following software:
· Windows 951
· System utilities and application software2
· Sleep Manager utility
· Display drivers
· Audio drivers
· PC Card slot drivers and applications
· Other third-party application software
Table 1-35 Location of Drivers in the System Utility CD
Device CategoryFunctionLocation
Sound, video and game controllers Audio ENGLISH\WIN95\AUDIO\
Mouse Mouse ENGLISH\WIN95\MOUSE\
Display adapters Video ENGLISH\WIN95\VGA\
PCMCIA Zoomed Video Port English\Win95\PCMCIA\
                                                     1In some areas, a different operating system may be pre-loaded instead of Windows 95.2The system utilities and application software list may vary. 
						

							1-24Service Guide
To re-install applications under W indows 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 1-36 Location of Applications in the System Utility CD
NameFunctionLocation
Sleep Manager 0V Suspend utility ENGLISH\WIN95\SLEEPMGR\
Y-Station Audio application ENGLISH\WIN95\Ystation
SafeOFF Protect if user accidentally press the power switch ENGLISH\WIN95\SAFEOFF
Drivers for W indows 3.x and W indows NT are also found in the System Utility CD if you should need
them. 
						

							System Introduction1-25
1.5  Block Diagrams
1.5.1 System
Parallel
PortSerial 
Port
CPU P55C/
Tillamook
PCI Bus PCI Bus
ISA Bus ISA Bus
CPU Bus CPU Bus
DIMM Socket
ALI
M1531
VGA
NeoMagic
NM2097ALI
M1533CD-ROM
& HDD
Conn.
OpAmp
TPA0102.
USB
Conn.
Super I/O
NS97338
Battery
Conn.Charger
Conn.
BIOS
ROM
PCMCIA
O2Micro 
OZ6833
AUDIO
YMF715
DRAM on board
KBC
M38813
Internal
FDD Conn.
Figure 1-4 System Block Diagram 
						

							1-26Service Guide
1.5.2 Clock
CLK GEN
CY2272
SMB BUS M1533 DIMM
CPU CLKM1531 CACHE
CPU
SDRAM CLKDIMM PCI CLK
14.318M
48MHZ1531
1533
NM2097
O2M 6833
USB1533
NM2097
YMF715
MODEM
NS 97338
ID CLK 24MHz
38813
8 MHz
Figure 1-5 Clock Block Diagram 
						

							System Introduction1-27
1.6 Environmental Requirements
Table 1- 37 Environmental Requirements
ItemSpecification
Temperature
Operating (   ) +5~ +35
Non-operating(   ) -20 ~ +60
Humidity
Operating (non-condensing) 20% ~ 85%
Non-operating (non-condensing) 20% ~ 90%
Operating Vibration (unpacked)
Operating 5 - 25.6Hz, 0.38mm;  25.6 - 250Hz, 0.5G
Sweep rate 0.5 octave / minute
Number of test cycles 2 / axis (X,Y,Z)
Non-operating Vibration (unpacked)
Non-operating 5 - 27.1Hz, 0.6G;  27.1 - 50Hz, 0.41mm; 50-500Hz, 2G
Sweep rate 0.5 octave / minute
Number of text cycles 4 / axis (X,Y,Z)
Non-operating Vibration (packed)
Non-operating 5 - 62.6Hz, 0.51mm; 62.6-500Hz, 4G
Sweep rate 0.5 octave / minute
Number of text cycles 4 / axis (X,Y,Z)
Shock
Non-operating (unpacked) 40G peak, 11±2ms, half-sine
Non-operating (packed) 50G peak, 11±2ms, half-sine
Altitude
Operating
10,000 feet (5°C ~ 40°C)
Non-operating
40,000 feet (-20°C ~ 60°C)
ESD
Air discharge 8kV (no error)
12.5kV (no restart error)
15kV (no damage)
Contact discharge 4kV (no error)
6kV (no restart error)
8kV (no damage) 
						

							1-28Service Guide
1.7 Mechanical Specifications
Table 1-38 Mechanical Specifications
ItemSpecification
Weight
  FDD model
  CD-ROM model(includes battery)
2.77 kg. (6.11 lb.)
2.89 kg. (6.37 lb.)
Dimensions
(main footprint)W x D x H
310mm x 245mm x 46mm  (12.2” x 9.65” x 1.81”) 
						

							&KDSWHU &KDSWHU
BIOS Setup
BIOS Setup2-1
The Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic
Input/Ouput System).
Your computer is already properly configured and optimized, and you do not need to run this utility.
However, if you encounter configuration problems, you may need to run Setup.  Please also refer to
Chapter 6, Troubleshooting when a problem arises.
To activate the Setup Utility, press F2 after you hear a beep while the Extensa logo is being
displayed.
W hen Silent Boot (described later in this chapter) is disabled, a message displays telling you when
you can press F2 to run the Setup Utility.
BIOS V3.0
------------------------------------------------------------------------------------------------------
016384 KB Memory Good
Enter Setup, Press F2 Key
------------------------------------------------------------------------------------------------------
ACR58000-M12-970324-R01-A0-EN
Copyright Ó Acer Incorporated 1990-1997.  All Rights Reserved 
						

							2-2Service Guide
Pressing F2 brings up the main screen of the Setup Utility.
SETUP Utility
Basic System Settings
Startup Configuration
Onboard Devices Configuration
System Security
Power Management
Load Default Settings
­¯®¬
=Move Highlight Bar, ¿
=Select, Esc=Exit
Press the cursor keys (­¯®¬) to move the highlight bar, then press Enter to make a menu
selection.