Acer AT115 F1, Service Manual, Page: 64 / 71

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(including blank or illegible monitor).
2. Load default settings (if screen is readable).
3. Main
board
Parallel/Serial Ports
Execute “Load BIOS Default Settings” in BIOS Setup to confirm ports presence before diagnosing any
parallel/serial ports problems.
Serial or parallel port loop-back test failed.
1. Make sure that the LPT# or COM# you test is
the same as the setting in BIOS Setup.
2. Loop-back.
3. Main
board.
Printing failed.
1. Ensure the printer driver is properly installed.
Refer to the printer service manual.
2. Printer.
3. Printer
cable.
4. Main board.
Printer problems.
1. Refer to the service manual for the printer.
Keyboard
Some or all keys on keyboard do not work.
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. Ensure the AC-LINK in BIOS Setup of Boot
Configuration is not set to Stay-off.
2. Power switch cable assembly
Pressing power switch does not turn on the system.
1. Ensure the power override switch (situated at
the back of the machine, just above the
connector for the power cable) is not set to
OFF.
2. Power switch cable assembly.
Executing software shutdown from
Windows98 Start menu does not turn off
the system. (Only pressing power switch can turn off
the system). 1. Load default settings.
2. Reload software from Recovery CD.
No system power, or power supply fan is not
running.
1. Power Supply
2. Main board
Other Problems
Any other problems.
1. Undetermined Problems