Apple Macintosh 6500 - Manual (Page 127)

m The monitor’s brightness control (¤) is not adjusted properly.
Check the monitor’s brightness control and turn it up if necessary.
m The monitor’s contrast control (O) is not adjusted properly.
Check the monitor’s contrast control and adjust it if necessary.
m The computer or the monitor is not getting power.
Check that the computer’s power cord is firmly connected to the computer
and plugged into a grounded electrical outlet, and that the outlet has power.
Check that the monitor is plugged in and turned on, and that the monitor
cable is firmly connected to both the computer and the monitor.
If you are displaying video from your computer on a television screen, it is
normal for your computer monitor to be dark.
The computer’s clock keeps time inaccurately.
Your computer has a clock that runs continuously. When the computer is
turned off, a battery keeps the clock running. If your clock begins to keep time
inaccurately, have your Apple-authorized service provider replace the battery.
Consult the service and support information that came with your computer
for instructions on how to contact an Apple-authorized service provider.
You inadvertently delete an application from your computer’s hard disk.
You can replace any of the software that came with your computer by
dragging it from the CD-ROM disc that contains system software to your hard
disk. See the section “Copying Files From CD-ROM Discs” in Chapter 5.
WARNING Do not attempt to replace the clock battery yourself. If the
clock begins to lose accuracy, have an Apple-authorized dealer or
service provider replace the battery. The service provider will dispose of
the battery according to the local environmental guidelines.
127 Troubleshooting