Acer Travelmate 420 Service Guide
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Chapter 133 Output Ratings (CV mode) DC output voltage Offers constant voltage 19.0V output source with 90W max output power capacity. Noise + Ripple 300mvp-pmax (20MHz bandwidth) for resistor load Output current 0 A (min.) 4.74A (max.) Output Ratings (CC mode) DC output voltage 19.0 Constant output 3.5A Dynamic Output Characteristics Start-up time 3 sec. (@115 Vac and 230Vac full load) Hold up time 10ms min. (@115 Vac input, full load) Over Voltage Protection (OVP) 26 V Short circuit...
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34Chapter 1 Non-operating 10% to 90% RH, non-condensing (storage package) Vibration Operating (unpacked) 5~500Hz: 1.0G Non-operating (unpacked) 50~500Hz: 2.16G Mechanical Specification ItemSpecification Dimensions 327mm (W) x 269mm (D) x 35.9mm (H) for 14.1/15.0 inch model Weight 6.3lb (2.86kg) for 14.1 inch model 6.6lb (2.99kg) for 15.0 inch model I/O Ports One type II CardBus slots, One RJ-11 modem jack,One RJ-45 network jack, One DC-in jack for AC adapter, One ECP/EPP-compliant parallel port, One...
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Chapter 135 004E-004F Motherboard resources 0050-0053 System timer 0060-0060 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard 0061-0061 Motherboard resources 0062-0062 Microsoft ACPI-Compliant Embedded Controller 0063-0063 Motherboard resources 0064-0064 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard 0065-0065 Motherboard resources 0066-0066 Microsoft ACPI-Compliant Embedded Controller 0067-0067 Motherboard resources 0070-0077 System CMOS/real time clock 0080-0080 Motherboard resources...
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36Chapter 1 0778-077B ECP Printer Port (LPT1) 0A79-0A79 ISAPNP Read Data Port 0D00-FFFF PCI Bus 1000-107F Motherboard resources 1180-11BF Motherboard resources 1200-120F Motherboard resources 1800-181F Intel (R) 82801 CA/CAM USB Universal Host Controller-2487 1820-182F Intel (r) 82801 CAM Ultra ATA Storage Controller-248A 1840-185F Intel (R) 82801 CA/CAM SMBus Controller-2483 1860-187F Intel (R) 82801 CA/CAM USB Universal Host Controller-2482 1880-18BF Intel (R) 82801 CA/CAM AC’97 Audio Controller...
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Chapter 137 IRQ12 Alps Pointing-device IRQ13 Numeric data processor IRQ14 Primary IDE controller IRQ15 Secondary IDE controller DMA Channel Assignment DMA ChannelFunction(Hardware) 1 ECP Printer Port (LPT1) 2 Standard Floppy Disk Controller 4 Direct Memory Access Controller IRQ Assignment Map Interrupt ChannelFunction(Hardware) SG_TM420_Ch1.fm Page 37 Thursday, September 26, 2002 9:23 AM
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38Chapter 1 SG_TM420_Ch1.fm Page 38 Thursday, September 26, 2002 9:23 AM
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Chapter 239 BIOS Setup Utility The BIOS Setup Utility is a hardware configuration program built into your computer’s BIOS (Basic Input/ Output System). Your computer is already properly configured and optimi zed, 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 4 Troubleshooting when problem arises. To activate the BIOS Utility, press m during POST (when “Press to enter Setup” message is prompted on...
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40Chapter 2 TTo choose a parameter, use the cursor up/down keys ( wy). TTo change the value of a parameter, press p or q. TPress ^ while you are in any of the menu options to go to the Exit menu. TIn any menu, you can load default settings by pressing t. You can also press u to save any changes made and exit the BIOS Setup Utility. NOTE: You can change the value of a parameter if it is enclosed in square brackets. Navigation keys for a particular menu are shown on the bottom of the scr een....
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Chapter 241 Info. This menu provides you the information of the system. ParameterDescription Floppy Drive The Floppy Drive status is auto detected by the system. The information page would display “1.44MB, 3 1/2 if floppy drive exists; it would disp lay “Not installed” if floppy drive does not exist. IDE1 Model Name Shows the Model name of HDD inst alled on Primary IDE master. The system will auto detect the hard disk model name. “None” means the hard disk drive is not existing or unknown type....
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42Chapter 2 UUID Number UUID=16bytes. This will be visible only when there is an internal LAN device present. System Memory This field reports the memory size of system base memory. The size is fixed to 640KB. ParameterDescription SG_TM420_Ch2.fm Page 42 Thursday, September 26, 2002 9:40 AM