Aspire T300 Service Guide
Page 22
Switching Power Supply 200W 50MHz 60MHz Input Frequency 47MHz to 53MHz 57MHz to 63MHz Frequency Variation Range Input Voltage 100 - 120 VRMS 200 - 240 VRMS 90 - 132 VRMS 180 - 264 VRMS Variation Range Input Current 4A 2A 90 -132 VRMS 180 - 264 VRMS Measuring Range Output Requirements +5V +12V -12V +3.3V +5Vaux +-5% +-5% +-10% +-4% +-5% Regulation 15A 3A 0.3A 12A 3A Current Rating 16 Chapter 1
Switching Power Supply 200W 50MHz 60MHz Input Frequency 47MHz to 53MHz 57MHz to 63MHz Frequency Variation Range Input Voltage 100 - 120 VRMS 200 - 240 VRMS 90 - 132 VRMS 180 - 264 VRMS Variation Range Input Current 4A 2A 90 -132 VRMS 180 - 264 VRMS Measuring Range Output Requirements +5V +12V -12V +3.3V +5Vaux +-5% +-5% +-10% +-4% +-5% Regulation 15A 3A 0.3A 12A 3A Current Rating 16 Chapter 1
Aspire T300 Service Guide
Page 39
...main memory and wake-capable devices and all system context is lost and hardware maintains all system context. Enabled Disabled This item specifies the power saving modes for ACPI function. S1&S3: Both S1 and S3 will be adopted. Settings in this state, no system context (CPU...used to restore the PC to activate the ACPI (Advanced Configuration and Power Management Interface) Function. If your operating system is a low power state. S3 (STR): The S3 sleep mode is s power-down state in which power is supplied only to essential components such as Windows 98SE/2000/Me, select ...
...main memory and wake-capable devices and all system context is lost and hardware maintains all system context. Enabled Disabled This item specifies the power saving modes for ACPI function. S1&S3: Both S1 and S3 will be adopted. Settings in this state, no system context (CPU...used to restore the PC to activate the ACPI (Advanced Configuration and Power Management Interface) Function. If your operating system is a low power state. S3 (STR): The S3 sleep mode is s power-down state in which power is supplied only to essential components such as Windows 98SE/2000/Me, select ...
Aspire T300 Service Guide
Page 51
Main Unit Top Cover CD ROM Power Supply Modem Card VGA Card Memory Heatsink Floppy/HDD Cage Front Bezel Daughter Board Bracket CPU Mainboard Floppy HDD Daughter Board Chapter 3 45 Disassembly Procedure Flowchart The flowchart below gives you a graphical representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing.
Main Unit Top Cover CD ROM Power Supply Modem Card VGA Card Memory Heatsink Floppy/HDD Cage Front Bezel Daughter Board Bracket CPU Mainboard Floppy HDD Daughter Board Chapter 3 45 Disassembly Procedure Flowchart The flowchart below gives you a graphical representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing.
Aspire T300 Service Guide
Page 63
... adapter cards that are NOT factory- NOTE: When you replace the main board. Enter BIOS Setup and load the default settings. 2. Memory module 3. Remove all power supply voltages, switch, and jumper settings before you have deemed it necessary to replace an FRU, and have a "system no check procedure is indicated, the first...
... adapter cards that are NOT factory- NOTE: When you replace the main board. Enter BIOS Setup and load the default settings. 2. Memory module 3. Remove all power supply voltages, switch, and jumper settings before you have deemed it necessary to replace an FRU, and have a "system no check procedure is indicated, the first...
Aspire T300 Service Guide
Page 65
...1. See "Memory" 2. System hangs before diagnosing any system problems. Memory test failed. 1. Ensure the diskette drive is correctly formatted. 3. Diskette drive power 3. Ensure the system is the most likely cause . Its reading should be +12Vdc. 3. System board System Board and Memory NOTE: Ensure the memory...its read/write head is not set it to stop at "Halt on , measure the voltage of Symptoms" 2. System works but power supply fan runs. 1. Execute a system test and set to None in BIOS Setup and its speed requirement before diagnosing any diskette drive problems...
...1. See "Memory" 2. System hangs before diagnosing any system problems. Memory test failed. 1. Ensure the diskette drive is correctly formatted. 3. Diskette drive power 3. Ensure the system is the most likely cause . Its reading should be +12Vdc. 3. System board System Board and Memory NOTE: Ensure the memory...its read/write head is not set it to stop at "Halt on , measure the voltage of Symptoms" 2. System works but power supply fan runs. 1. Execute a system test and set to None in BIOS Setup and its speed requirement before diagnosing any diskette drive problems...
Aspire T300 Service Guide
Page 68
... ports problems. Serial or parallel port loop-back test failed. 1. Printer problems. 1. Keyboard Power Supply Pressing power switch does not turn off system. (Only unplugging the power cord from electrical outlet can turn off the system.) 1. in BIOS Setup. 2. No system power, or power supply fan is properly installed. Printing failed. 1. Loop-back. 3. Keyboard Some or all...
... ports problems. Serial or parallel port loop-back test failed. 1. Printer problems. 1. Keyboard Power Supply Pressing power switch does not turn off system. (Only unplugging the power cord from electrical outlet can turn off the system.) 1. in BIOS Setup. 2. No system power, or power supply fan is properly installed. Printing failed. 1. Loop-back. 3. Keyboard Some or all...
Power ST User Guide
Page 6
... instructions since improper adjustment of fire or explosion. e If the product has been dropped or the cabinet has been damaged. Use of power supply cord set (provided in performance, indicating a need for this unit. Refer battery replacement to a qualified serviceman. 13 Warning! Do not...disassemble or dispose of them away from the wall outlet and refer servicing to qualified service personnel under the following conditions: a When the power cord or plug is located on the drive. CLASS 1 LASER PRODUCT CAUTION: INVISIBLE LASER RADIATION WHEN OPEN. Maximum length is a ...
... instructions since improper adjustment of fire or explosion. e If the product has been dropped or the cabinet has been damaged. Use of power supply cord set (provided in performance, indicating a need for this unit. Refer battery replacement to a qualified serviceman. 13 Warning! Do not...disassemble or dispose of them away from the wall outlet and refer servicing to qualified service personnel under the following conditions: a When the power cord or plug is located on the drive. CLASS 1 LASER PRODUCT CAUTION: INVISIBLE LASER RADIATION WHEN OPEN. Maximum length is a ...