Acer Travelmate 350 Service Guide

Chapter 115
Touchpad
The built-in touchpad is a PS/2-compatible pointing device that senses movement on its surface.  This means 
the cursor responds as you move your finger on the surface of the touchpad.  The central location on the palm 
rest provides optimum comfort and support.
NOTE: 
 When using an external USB or serial mouse, you can press Fn-F7
 to disable the touchpad.  If you are 
using an external PS/2 mouse, the touchpad is automatically disabled.
Touchpad basics
The following items teach...

16Chapter 1
NOTE: Keep your fingers dry and clean when using the touchpad.  Also keep the touchpad dry and clean.  The 
touchpad is sensitive to finger movements.  Hence, the lighter the touch, the better the response.  
Tapping harder will not increase the touchpad’s responsiveness.
Scroll Click and 
hold the up/
down button
FunctionLeft buttonRight buttonCenter 
buttonsTa p 

Chapter 117
Hardware Specifications and Configurations
Main board Major Chips
ItemController
System core logic ALI Aladdin Pro II chipset M1632/M1535
Super I/O controller Built in M1535
Audio controller Built in M1535 
Video controller Built in M1632 (Trident CyberBlade AGP-2X)
IDE controller Built in M1535 (2-channel dedicated Ultra-66 IDE Master Controller)
Keyboard controller Mitsubishi M38867
RTC BenchMark BQ3285LF SSOP
PCMCIA controller O2 Micro OZ711 CardBus controller (Tarzan)
IEEE 1394 controller...

18Chapter 1
Above table lists some system memory configurations. You may combine DIMMs with various capacities to 
form other combinations.
NOTE: The shipping specification for DIMM combination is 64MB in slot 1. System Memory
ItemSpecification
Memory controller Built-in ALI M1632
Onboard memory size 0MB
DIMM socket number 2 sockets
Supports memory size per socket 64/128 MB
Supports maximum memory size 256MB (128MB x 2)
Supports DIMM type SDRAM
Supports DIMM speed 100MHz
Supports DIMM voltage 3.3V...

Chapter 119
Modem Interface
ItemSpecification
Modem Interface/Chipset Built in M1535 AC’97 2.1 compliant digital controller interface with software 
modem solution / Ambit U98M005.01
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 location Rear side
Hard Disk Drive Interface
ItemSpecification
Vendor & Model Name IBM DJSA-205 IBM...

20Chapter 1
Loading mechanism Drawer with soft eject and emergency eject hole
Power Requirement
Input Voltage  5 V
Floppy disk drive
Floppy disk Specifications
Media recognition 2DD (720KB) 2HD (1.2MB, 3-mode) 2HD (1.44MB)
Sectors / track 9 15 18
Tracks 80 80 80
Data transfer rate  (Kbit/s) 250  500 500
Rotational speed (RPM) 300  360 300
Read/write heads 2
Encoding method MFM
Power Requirement
Input Voltage (V) +5V +-10%
DVD-ROM/Floppy Diskette Combo Drive Interface
ItemSpecification
Vendor & model name...

Chapter 121
Audio Interface
ItemSpecification
Audio controller Built in M1535 audio controller combined with standard AC97/AC98 codec 
(Cirrus CS-4299)
Audio onboard or optional  Onboard
Mono or Stereo Stereo
Resolution 16 bit
Compatibility Windows Sound System (WSS), Microsoft PC98/PC99, WHQL audio 
requirement
Mixed sound source Voice, Synthesizer, Line-in, Microphone, CD
Voice channel 6/16-bit, mono/stereo
Sampling rate 48 KHz
Internal microphone Yes
Internal speaker / Quantity Yes/ 1 pieces
Supports...

22Chapter 1
USB Port
ItemSpecification
USB Compliancy Level 1.0
OHCI USB 1.0
Number of USB port 2
Location Rear side
Serial port function control  Enable/Disable by BIOS Setup
IrDA Port
ItemSpecification
IrDA FIR port controller Built in M1535
Number of IrDA FIR port 1
Location Front side
IrDA FIR port function control Enable/disable by BIOS Setup
Optional IrDA FIR port 
(in BIOS Setup)2F8h, 3F8h, 3E8h, 2E8h
Optional IrDA FIR port IRQ 
(in BIOS Setup)IRQ3, IRQ4, IRQ10, IRQ11
Optional IrDA FIR port DRQ...

Chapter 123
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 a different brand, use Inverter ID utility to update the ID  
information.
Cell voltage 3.6V
Number of...

24Chapter 1
Frequency variation range (Hz) 47 - 63 47 - 63
Nominal voltages (V) 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) 
respectively.The maximum inrush current will be 
less than 50A and 100A when the 
adapter is connected to 115Vac(60Hz) 
and 230Vac(50Hz) respectively.
Efficiency It should provide an efficiency of 
83% minimum, when measured at 
maximum load under 115V(60Hz).It should...