Troubleshooting Step Sheet 3
Contents
1. Troubleshooting Step Sheet 3 This document can be found online at http tl info apple com techinfo nsf artnum n43046 0penDocument amp imac http til info apple com techinfo nsf artnum n43048 Remove a jammed disc The normal way to eject a CD is to drag its icon to the Trash Ifa CD or DVD disc is jammed shut down your computer Locate the emergency ejection hole near the disc drive s opening For more information see the documentation that came with your computer Carefully insert the end of a straightened paper clip and push gently but firmly until the tray is released then pull the paper clip out Carefully pull the tray open and remove the disc Do not use excessive force If the disc is still stuck in the drive or won t come out of the drive easily you ll need to contact an Apple authorized service provider See the service and support information that came with your computer Resolve system extension conflicts System extensions are small programs that add to or extend the capabilities of your computer s system software These programs reside in one of two folders in the System Folder a Extensions folder m Control Panels folder The term extension refers to items in either folder If your computer does not start up properly or behaves erratically you may have an extension that is not compatible with another extension or with an application or system software 2000 Apple Computer Inc Reproduced for2. art your computer and immediately hold down the Command Option P and R keys Keep holding down these keys until you hear the startup sound a second time then release the keys If you had special settings in any control panels open those control panels to reset the desired settings Make sure memory and expansion cards are installed correctly If you ve recently installed RAM make sure you ve used the correct type of memory for your computer For more information see the memory specifications in the documentation that came with your computer Technology Leadership Workshop Troubleshooting Step Sheet3 3 4 If you recently installed RAM or an expansion card in your computer check the installation information in the documentation that came with your computer to make sure the memory or card is properly installed If you purchased an expansion card from a manufacturer other than Apple contact the manufacturer if you need further help Replace the computer s backup battery If you have intermittent problems starting up your computer and the date is reset to something other than the current year you need to replace the backup battery in your computer For some computers you can replace the battery yourself For others you must have an Apple authorized service provider do this for you To find out if your computer s battery is user replaceable see the documentation that came with your computer Important Batteries contain c
3. classroom use only 1 Verify the problem To verify that you have a compatibility problem 1 Make sure the Caps Lock key is not engaged Start up your computer while holding down the Space bar Release the Space bar when the Extensions Manager control panel opens Note Ifthe Extensions Manager control panel doesn t open after a few minutes restart the computer holding the Shift key down so that all extensions will be turned off Then open the Extensions Manager control panel and continue with the steps below 4 Make a note of the name of the currently selected set of extensions in the Selected Set pop up menu so that you can return to it later if you want 5 Open the Selected Set pop up menu and choose Mac OS 8 5 Base Click the Continue button to continue startup When the computer is ready try the same actions that caused the problem If the problem no longer occurs you probably have at least one extension or control panel that has corrupted preferences is corrupted itself or doesn t work with Mac OS 8 5 Continue with the steps in the next section Test individual extensions and control panels A recently installed extension or control panel might be the problem If you have a lot of extensions and control panels you may want to work by halves Turn on half the extensions and control panels and test for the problem If the problem disappears repeat the process turning on half of the remaining items If the problem per
4. hemicals some of which may be harmful to the environment Please dispose of used batteries according to your local environmental guidelines Replacing the battery may affect the settings in some of your control panels including the following a Date amp Time Memory information lost includes RAM disk settings m Monitors amp Sound Keyboard and Mouse or Trackpad a AppleTalk Connect via is set to the Ethernet port Make a note of the settings before you replace the battery You may also have to restore modem settings in any communications software programs you are using Technology Leadership Workshop Troubleshooting Step Sheet 3
5. sists repeat the process turning off half of the items that are turned on Continue to work by halves like this until you locate the conflicting extensions or control panels 1 Make sure the Caps Lock key is not engaged Restart your computer while holding down the Space bar Release the Space bar when the Extensions Manager control panel opens Note Ifthe Extensions Manager control panel doesn t open after a few minutes restart the computer holding the Shift key down so that all extensions will be turned off Then open the Extensions Manager control panel and continue with the steps below 4 Open the Selected Set pop up menu and choose the desired set of extensions you want to test 5 Click the Duplicate Set button to create a new set of extensions In the dialog box that appears type a name for the set for example Test Set and click OK 6 Turn offall the extensions in the new set by opening the Select Set menu and choosing All Off 7 Turnon the item you want to test by clicking its checkbox 2 Technology Leadership Workshop Troubleshooting Step Sheet 3 10 Click the Continue button to continue startup Try the same actions that caused the problem If the problem occurs again the item is probably incompatible Remove the item from the Extensions or Control Panels folder or turn the item off using the Extensions Manager Restart your computer while holding down the Space bar to open the Extensions Manager T
6. urn on the next item you want to test Repeat this step until you ve located the extension that is causing the problem Note Ifthe Extensions Manager control panel doesn t open after a few minutes restart the computer holding the Shift key down so that all extensions willbe turned off Then open the Extensions Manager control panel and continue with the steps below Once you find that a piece of software is incompatible try the following Delete its preferences file if it has one it may be corrupted Then restart your computer m Reinstall the extension and restart your computer Contact the manufacturer of the extension to see if an updated version is available Reset the PRAM Your computer stores information in an area of memory called parameter RAM or PRAM pronounced PEA ram Resetting the PRAM replaces the information stored there with the default original settings Important When you reset the PRAM preferences for the Memory and AppleTalk control panels are lost Make a note of the settings in these control panels before you reset the PRAM Some third party software programs also store information in PRAM You may have to reconfigure video cards after resetting the PRAM Other aspects of your work also may be affected To reset PRAM follow these steps Note This procedure may not work with some keyboards from manufacturers other than Apple Make sure the Caps Lock key is not engaged Start up or rest
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