Acer Travelmate 520 Service Guide
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Chapter 115 Touchpad The built-in touchpad is a PS/2-compatible pointing device that senses movement on its surface. This means that the cursor responds as you move your finger on the surface of the touchpad. The central location on the palmrest 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 you how to use the touchpad: 1. Move your finger across the touchpad to move the cursor. 2. Press the left (1) and right (3) buttons located on the edge of the touchpad to do selection and execution functions. These two buttons are similar to the left and right buttons on a mouse. Tapping on the touchpad produces similar results. 3. Use the center (2) buttons (top and bottom) to scroll up or down a page. This button mimics your cursor pressing on the right scroll bar of Windows applications.
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. FunctionLeft ButtonRight ButtonCenter ButtonTa p Execute Click twice quickly Tap twice (at the same speed as double- clicking a mouse button) Select Click once Tap once Drag Click and hold, then use finger to drag the cursor on the touchpadTap twice (at the same speed as double- clicking a mouse button) then hold finger to the touchpad on the second tap and drag the cursor Access context menuClick once Scroll Click and hold the up/ down buttons
Chapter 117 Hardware Specifications and Configurations Main board Major Chips ItemController System core logic ALi M1621/M1535 Super I/O controller ALi M1535 Audio controller ALi M1535 + Cirrus Logic CS4299 Video controller ATI Rage Mobility-M1 IDE controller ALi M1535 Keyboard controller M38867 RTC BQ3285LF PCMCIA Controller O2 OZ6933 Processor ItemSpecification CPU type Intel Mobile Pentium III/Celeron 500/500+ MHz with 256KB/128KB on-die cache CPU package uPGA2 package CPU core voltage 1.6V / 1.35V CPU I/O voltage 1.5V BIOS ItemSpecification BIOS vendor Acer BIOS version V3.0 BIOS ROM type Flash ROM BIOS ROM size 512KB BIOS package 32-pin TSOP Supported protocols ACPI 1.0b, APM 1.2, PC Card 95, SM BIOS 2.3, EPP/IEEE 1284, ECP/IEEE 1284 1.7 & 1.9, IrDA, PCI 2.1, PnP 1.0a, PS/2 keyboard and mouse, USB, VESA VGA BIOS, DDC-2B, CD-ROM bootable, Windows keyboard Microsoft Simple Boot Flag BIOS password control Set by switch, see SW1 settings Second Level Cache ItemSpecification Cache controller Built-in ALi M1621 Cache size 128KB/256KB 1st level cache control Always Enabled 2nd level cache control Always Enabled Cache scheme control Fixed-in write back System Memory ItemSpecification Memory controller ALi M1621 Onboard memory size 0 MB
18Chapter 1 Above table lists some system memory configurations. You may combine DIMMs with various capacities to form other combinations. DIMM socket number 2 sockets Supports memory size per socket 32/64/128/256 MB Supports maximum memory size 512 MB (256MB x 2) Supports DIMM type SDRAM Supports DIMM speed 100 MHz Supports DIMM voltage 3.3 V Supports DIMM package 144 pin so-DIMM Memory module combinations You can install memory modules in any combinations as long as they match the above specifications. Memory Combinations Slot 1Slot 2To t a l M e m o r y 32 MB 32 MB 64 MB 64 MB 0 MB 64 MB 0 MB 64 MB 64 MB 64 MB 32 MB 96 MB 32 MB 64 MB 96 MB 64 MB 64 MB 128 MB 0 MB 128 MB 128 MB 128 MB 0 MB 128 MB 32 MB 128 MB 160 MB 128 MB 32 MB 160 MB 64 MB 128 MB 192 MB 128 MB 64 MB 192 MB 128 MB 128 MB 256 MB 256 MB 0 MB 256 MB 0 MB 256 MB 256 MB 256 MB 32 MB 288 MB 32 MB 256 MB 288 MB 256 MB 64 MB 320 MB 64 MB 256 MB 320 MB 256 MB 128 MB 384 MB 128 MB 256 MB 384 MB 256 MB 256 MB 512 MB LAN & Modem Interface ItemSpecification Chipset M1535/GD 82559 Fax modem data baud rate (bps) 14.4K Data modem data baud rate (bps) 56K Supports modem protocol ITU-T V.90, V.34, TIA/EIA 602 Supports LAN protocol IEEE 802.3 Modem/LAN connector type RJ11/RJ45 System Memory ItemSpecification
Chapter 119 Modem/LAN connector location Rear Side Floppy Disk Drive Interface ItemSpecification Vendor & model name Mitsumi D353F3X 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) 1MB 1.6MB 2MB Rotational speed (RPM) 300 360 300 Read/write heads 2 Encoding method MFM/FM Power Requirement Input Voltage (V) +5V +/- 10% Hard Disk Drive Interface ItemSpecification Vendor & Model Name IBM DARA-209000 IBM DARA-212000 Hitachi DK23AA-12 Capacity (GB) 9 12 12 Bytes per sector 512 512 512 Logical heads 16 16 16 Logical sectors 63 63 63 Drive Format Logical cylinders 16383 16383 16383 Physical read/write heads34 4 Disks 2 2 2 Spindle speed (RPM) 4200 4200 4200 Performance Specifications Buffer size (KB) 418 418 512 Interface IDE (ATA-4) IDE (ATA-4) IDE (ATA-5) Data transfer rate (disk buffer, MB/s)85.5-161.6 85.5-161.6 12.4-20.6 Data transfer rate (host buffer, MB/s)16.6 (PIO Mode-4) 66.6 (Ultra DMA Mode-4)16.6 (PIO Mode-4) 66.6 (Ultra DMA Mode-4)16.6 (PIO Mode-4/Multiword DMA Mode-2) 66.6 (Ultra DMA Mode-4) DC Power Requirements Voltage tolerance 5+/-5% 5+/-5% 5+/-5% LAN & Modem Interface ItemSpecification
20Chapter 1
CD-ROM Interface
ItemSpecification
Vendor & Model Name MKE CR-176-B/D 24X TEAC CD-224E-B26
Performance Specification
Transfer rate CAV Mode:
775~1800 blocks/sec
Mode 1:
1550~3600 kBytes/sec
Mode 2:
1768~4106kBytes/secBurst:
33.3 Mbytes/sec
Sustained:
1545~3600 kBytes/sec
Access time (typ.) Random: 100 ms
Full Stroke: 200 ms11 5 m s
Rotation speed 5000 rpm 5136 rpm
Data Buffer Capacity 128 KB 128 KB
Interface IDE IDE
Applicable disc format CD-Audio, CD-ROM ( mode 1 and
Mode 2 ), CD-ROM XA ( mode 2, form
1 and form 2 ), CD-I ( mode 2, form 1
and form 2 ), CD-I Ready, CD-I Bridge,
Photo CD, CD-WO, Video CD,
Enhanced Music CD (CD Plus), CD-
RWCD-ROM (mode 1 and mode 2), CD-
ROM XA (mode 1, form 1 and form2),
Photo CD, Enhanced CD, CD-RW
Loading mechanism Drawer with soft eject and emergency eject hole
Power Requirement
Input Voltage 5V+/-5% 5V+/-5%
DVD-ROM Interface
ItemSpecification
Vendor & model name MKE SR-8174-BXX
Performance Specification With CD Diskette With DVD Diskette
Transfer rate (KB/s) Average Sustained:
CAV mode 775~1800 blocks/sec
(10.3X to 24X) 1550~3600 kBytes/
sec (Mode 1)
1768~4106 kBytes/
sec (Mode 2)DVD-5:
Normal Speed (1X)
11.08 Mbits/sec
CAV mode
27.51~66.48 Mbits/sec
DVD-9:
Normal Speed (1X)
11.08 Mbits/sec
CAV mode
TBD~TBD Mbits/sec
Access time (typ.) Random (*1)
CAV mode 120 msec typical
1 80 m s ec a ve ra ge m ax
Full Stroke (*2)
CAV mode 210 msec typical
2 70 m s ec a ve ra ge m axRandom (*3)
170 msec typical
270 msec average max
Full Stroke (*4)
320 msec typical
480 msec average max
Data Buffer Capacity 512 kBytes
Interface IDE
Applicable disc format DVD: DVD-5, DVD-9, DVD-10, DVD-R (3.95G)
CD: CD-Audio, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form 1
and form 2), CD-I (mode 2, form 1 and form 2), CD-I Ready, CD-I Bridge,
CD-WO, CD-RW, Photo CD, Video CD, Enhanced Music CD, CD-TEXT
Chapter 121 Note: (*1) Average of Data read over the whole area from 00 min. 02 sec. 00 block to 59 min. 58 sec. 74 block more than 2000 times including latency and layered error correction time. (*2) From 00 min. 02 sec. 00 block to 59 min. 58 sec. 74 block including latency and layered error correction time. (*3) Disc: MNSU-005 (*4) Average of Data read over the whole area from starting data recorded area (LBA:0) to maximum data recorded area (LBA:23197F), more than 2000 times including latency and layered error correction time. (*5) from starting data recorded area (LBA:0) to maximum data recorded area (LBA:23197F) including latency and layered error correction time. (*6) Disc: MKE-D551 Loading mechanism Soft eject (with emergency eject hole) Power Requirement Input Voltage 5V Audio Interface ItemSpecification Audio controller Cirrus Logic CS4299 Audio onboard or optional Built-in Mono or Stereo Stereo Resolution 20 bit stereo Digital to Analog converter 18 bit stereo Analog to Digital converter Compatibility Microsoft PC98/PC99, AC97 2.1 Mixed sound source Line-in, CD, Video, AUX Voice channel 8/16 bit, mono/stereo Sampling rate 44.1 KHz Internal microphone Yes Internal speaker / Quantity Yes/ 2 pieces Supports PnP DMA channel DMA channel 0 DMA channel 1 Supports PnP IRQ IRQ3, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11 Video Interface ItemSpecification Vendor & model name ATI Rage Mobility-M1 Chip voltage Core/2.5V Memory/3.3V Supports ZV (Zoomed Video) port Yes Graph interface 2X AGP (Accelerated Graphics Port) bus Maximum resolution (LCD) 1024x768 (24 bit colors) Maximum resolution (CRT) 1024x768 (24 bit colors) Video Memory ItemSpecification Fixed or upgradeable Fixed, built-in video controller Video memory size 8.0 MB DVD-ROM Interface ItemSpecification
22Chapter 1 Video Resolutions Mode ResolutionRefresh Rate CRT Only LCD/CRT Simultaneous 640x480x256 85 60 640x480x64K 85 60 640x480x16M 85 60 800x600x256 85 60 800X600X64K 85 60 1024x768x256 60, 75 60 Parallel Port ItemSpecification Parallel port controller ALi M1535 Number of parallel port 1 Location Rear side Connector type 25-pin D-type connector, in female type Parallel port function control Enable/Disable by BIOS Setup Supports ECP/EPP Yes (set by BIOS Setup) Optional ECP DMA channel (in BIOS Setup)DMA channel 1 and 3 Optional parallel port I/O address (in BIOS Setup)3BCh, 378h, 278h Optional parallel port IRQ (in BIOS Setup)IRQ5, IRQ7 Serial Port ItemSpecification Serial port controller ALi M1535 Number of serial port 1 Supports 16550 UART Yes Connector type 9-pin D-type connector, in male type Location Rear side Serial port function control Enable/Disable by BIOS Setup Optional serial port (in BIOS Setup) 3F8h, 3E8h, 2E8h Optional serial port IRQ (in BIOS Setup)IRQ4, IRQ11 USB Port ItemSpecification USB Compliancy Level 1.0 HCI OHCI 1.0a Number of USB port 2 Location Rear side
Chapter 123 IrDA Port ItemSpecification IrDA FIR port controller ALi M1535 Number of IrDA FIR port 1 Location Left 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 Optional IrDA FIR port DRQ (in BIOS Setup)DMA0, DMA1, DMA3 PCMCIA Port ItemSpecification PCMCIA controller O2 OZ6933 Supports card type Type III/II/I Number of slots One type III or two type II/I Access location Left side Supports ZV (Zoomed Video) port Yes Supports 32 bit CardBus Yes (IRQ9) Keyboard ItemSpecification Keyboard controller Mitsubishi M38867 Keyboard vendor & model name JME K9811 Total number of keypads 84/85/88-key Windows 95 keys Yes Internal & external keyboard work simultaneouslyYe s Battery ItemSpecification Vendor & model name Sanyo BTP-34A1 Battery Type Li-Ion Pack capacity 3600 mAH Cell voltage 3.7V Number of battery cell 8 Package configuration 4S2P Package voltage 14.8V DC-DC/Charger Converter ItemSpecification Vendor & Model Name Acer Input Voltage AC Adapter or Battery: 10V - 26V
24Chapter 1 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. DC-DC Converter Output Output Rating 5V 3.3V 12V 5V SB Current (w/load, A) 0~4.5 0~3.5 0~0.12 0~0.02 Charger Output Normal charge (charge while system is not operative)2.5A Background charge (charge even system is still operative)1A Battery-low 2 level (V) 13.5V Battery-low 3 level (V) None Protection Charger protection Over Current Protection DC/DC converter protection OCP (Over Current Protection, A) OVP (Over Voltage Protection, V) UVP (Under Voltage Protection, V) DC-AC LCD Inverter ItemSpecification Vendor & model name Ambit Input voltage (V) 8 ~ 21V Input current (mA) 1A (max.) Output voltage (Vrms, no load)1400Vrms Output voltage frequency (kHz)40 ~ 70KHz Output Current/Lamp 5.5 mA ~ 6.5mA LCD ItemSpecification Vendor & model name 12.1” Hitachi TX31D35VC1CAA13.3” ADT L133X2-314.1” ADT L141X1-114.1” IBM ITXG76C Mechanical Specifications LCD display area (diagonal, inch) 12.1 13.3 14.1 14.1 Display technology TFT TFT TFT TFT Resolution SVGA (800x600) XGA (1024x768) XGA (1024x768) XGA (1024x768) Support colors 16M 262K 262K 16M Optical Specification Brightness control Keyboard hot key keyboard hotkey Keyboard hotkey Keyboard hot key Contrast control None None None None Electrical Specification Supply voltage for LCD display (V) 3.3 (typ.) 3.3 (typ.) 3.3 (typ.) 3.3 (typ.) DC-DC/Charger Converter ItemSpecification