can terminate this test by holding down the apple key and typing a period. The computer will then proceed to check the memory boards and the I/O board. The screen will flash or flicker during these three tests. Do not be alarmed. This is normal to check the different components and their functions.
When all components have been checked and all is working properly your screen will appear as follows.
Select either Retest or Turn Off. If you select Turn Off, the screen will dim and after about fifteen seconds and the computer will turn itself off. You can then turn the computer on and begin normal operation. If the test did detect an error with one or more of the boards you would see a message indicating which board or device is causing the error and needs to be replaced.
Built-in Service Mode
In addition to the automatic startup tests, the Lisa has built-in service mode. Some tests are easy to figure out. Adjust Video, for example, puts up a 1/2 inch reverse video crosshatch. Here's how to enter the built-in service mode:
1. If the computer is on, turn it off. Wait a few seconds, then without inserting a startup floppy disk, turn the computer on again.
2. At the end of the kernel test (when you hear the first click), hit any key except Caps Lock. Hitting a key interrupts the normal startup procedure and turns on the Startup From mode.
3. At the end of the module test (when you hear the second click), hold down the Apple key and press the 2 key.
4. Since there's no floppy disk in the disk drive, the Lisa beeps three times and presents you with an error box. Ignore it!
