Acer Travelmate 330 Service Guide

Chapter 1 31
  
 
        PCMCIA
ItemSpecification
PCMCIA controller O2 OZ6812
Supports card type Type-II 
Number of slots One type-II
Access location Right side
Supports ZV (Zoomed Video) port Yes 
Supports 32 bit CardBus  Yes (IRQ9)
Modem
ItemSpecification
Chipset Ambit J07.107.C.00
Fax modem data baud rate (bps) 14.4K
Data modem data baud rate (bps) 56K
Supports modem protocol V.90 data modem 56K, V.90 fax 
modem 14.4K and digital line 
protection operation
Modem connector type RJ11
Modem connector...

32 System Introductions 
   Hard Disk Drive
ItemSpecification
Vendor & Model Name IBM DBCA 206480 IBM DBCA 204860
Drive Format
Capacity (MB) 6490
4860
Bytes per sector 512 512
Logical heads 15 15
Logical sectors 63 63
Drive Format
Logical cylinders 13424 10068
Physical read/write heads 4 3
Disks 2 2
Spindle speed (RPM) 4200 4200
Performance Specifications
Buffer size  512KB 512KB
Interface IDE(ATA-4) IDE(ATA-4)
Data transfer rete (disk-buffer, 
Mbytes/s)8.6~14.75 8.6~14.7
Data transfer, rate...

Chapter 1 33
  
  
Encoding method MFM
Power Requirement
Input Voltage (V) +5V +-10%
CD-ROM
ItemSpecification
Vendor & Model Name TEAC CD-224E-A25
Performance Specification
Transfer rate (KB/sec) 1,545KB/sec ~ 3,600KB/sec. (FULL - CAV) 
Access time (typ.) 130 mS
Rotation speed 5136 rpm (typ.)
Buffer memory  128 KB
Interface ATAPI
Applicable disc format CD-DA, CD-ROM (Mode-1, Mode-2), CD-ROM 
XA MODE-2 (FORM-1, FORM-2), Multi-Session 
Photo CD, CD-I, Video CD, Enhanced CD & CD 
PLUS Compatible, CD-R/W...

34 System Introductions 
    
Note: DC-AC inverter is used to generate very high AC voltage, then 
support to LCD CCFT backlight user, and is also responsible for 
the control of LCD brightness. Avoid touching the DC-AC inverter 
area while the system unit is turned on. 
Note: There is an EEPROM in the inverter, which stores its supported 
LCD type and ID code.  If you replace a new inverter or replace 
the LCD with one of a different brand, use Inverter ID utility to 
update the ID information. LCD...

Chapter 1 35
    
LCD
ItemSpecifications
Vendor & model name 12.1 Sharp 
LQ121S1DH01To r i s a n  
TM121SV-02L04
Mechanical Specifications
LCD display area 
(diagonal, inch)12.1 12.1
Display technology TFT TFT
Resolution SVGA (800x600) SVGA (800x600)
Supports colors 262,144 colors 262,144 colors
Optical Specification
Brightness control keyboard hotkey keyboard hotkey
Contrast control keyboard hotkey keyboard hotkey
Electrical Specification
Supply voltage for LCD 
display (V)3.3 (typ.) 3.3 (typ.)
Supply...

36 System Introductions 
Power Adapter
ItemSpecification
Vendor & model name Lite-On PA-1460-19AC 
Rev. 03.Delta ADP-45GB Rev. 
E5
Input Requirements
Maximum input current 
(A, @90Vac, full load)1.5A@90Vac
[email protected] A
Nominal frequency (Hz) 47 - 63 47 - 63
Frequency variation 
range (Hz)47 - 63 47 - 63
Nominal voltages (Vrms) 90 - 264 90 - 264
Inrush current The maximum inrush 
current will be less than 
50A and 100A when the 
adapter is connected to 
115Vac(60Hz) and 
230Vac(50Hz)...

Chapter 1 37
Electrostatic discharge 
(ESD)15kV (at air discharge)
8kV (at contact 
discharge)15kV (at air discharge)
8kV (at contact 
discharge)
Dielectric Withstand Voltage
Primary to secondary 3000 Vac (or 4242 Vdc), 
10 mA for 1 second3000 Vac (or 4242 Vdc), 
10 mA for 1 second
Leakage current  0.25 mA max. (@ 254 
Va c ,  6 0 H z )0.25 mA max. (@ 254 
Va c ,  6 0 H z )
Regulatory 
RequirementsInternal filter meets:
1.  FCC class B 
requirements. (USA)
2.  VDE 243/1991 class 
B requirements....

38 System Introductions 
Power Management
This computer has a built-in power management unit that monitors system 
activity.  System activity refers to any activity involving one or more of the 
following devices: keyboard, mouse, floppy drive, hard disk, peripherals 
connected to the serial and parallel ports, and video memory.  If no activity is 
detected for a period of time (called an inactivity time-out), the computer 
stops some or all of these devices in order to conserve energy.
This computer...

Chapter 1 39
Standby Mode
The computer consumes very low power in Standby mode.  Data remains 
intact in the system memory until the battery is drained.
There are six ways to enter Standby mode:

Pressing the Standby hot key Fn-F3

If the waiting time specified by the System Standby value or the 
operating system elapses without any system activity

Closing the display cover

When the computer is about to enter Hibernation mode (e.g., during a 
battery-low condition), but the Hibernation file is invalid...

40 System Introductions 
There is one necessary conditions for the computer to enter Hibernation 
mode:

The Hibernation file created by Sleep Manager must be present and 
valid.   
In this situation, there are five ways to enter Hibernation mode: 

Pressing the Hibernation hot key Fn-F4

If the waiting time specified by the System Hibernation value elapses 
without any system activity

If a battery low condition occurs and the Sleep Upon Battery-low 
parameter in the BIOS Utility is enabled

When the...