3.Disconnect the AC adapter.

4.Turn the HDD switch off. Turn on the computer, but do not insert a diskette and do not use the computer. When the screen backlighting goes off, leave it off (do not press a key). Allow the computer to remain in this condition for an hour and 45 minutes. If the Power/Speed light starts to flash before the hour and 45 minutes is up, the battery is faulty. Contact your dealer to have the internal battery pack replaced.

Diskette Problems

If you have trouble with a diskette, see if any of the following questions applies:

1.Is the diskette damaged? To find out, use DISKCOPY to make a copy of the diskette. Using the copy, repeat the operation that caused the problem. If the operation works using the copy diskette, the original diskette is probably damaged. Discard the original diskette and use the copy instead.

If you have trouble copying the entire diskette, some of the sectors may be bad. Try using the COPY command to copy one file at a time.

2.Is the diskette write-protected! If the write-protect switch is set, try moving the switch to remove the write protection. (Ordinarily, it’s a good idea to leave program diskettes write- protected, but some programs don’t work properly on write- protected diskettes.)

3.Try formatting a blank diskette to determine if the diskette drive is operating properly.

Troubleshooting B-5