Chapter 2
Diagnostics
 
Diagnostic Tests
 
 
 
Saving User Data
 
Warning:
 
  Be sure to save all user data and remove any user disk from the disk drive before 
entering diagnostics.
To save user data, insert a formatted floppy disk into the disk drive and press the 
 
Disk
 
 button. 
In Disk Mode, use the 
 
Down
 
 cursor button to scroll through the list until 
 
Everything 
 
appears 
in the LCD. Press the soft button under 
 
OK
 
 and follow the instructions displayed in the LCD. 
See 
 
Saving User Data
 
 on page 5-2 for additional information.
 
Test Name Description
 
LCD Tests the LCD
Engine Blk Tests the Operating System (installed in FlashROM)
Object Blk Tests the Setups (installed in FlashROM)
RAM/PRAM Tests the RAM (volatile, non-volatile and expansion)
I/O Port Tests the Microcontroller’s port pins
FDD Init Tests the Floppy Disk Drive controller
Scanner Tests the Scanner communications
MIDI Uart Tests MIDI In and Out
FDD R/W Tests the Floppy Disk Drive
SCSI Tests drive(s) on the SCSI bus
VLSI & ZRAM Tests Janis, Hobbes, and Lisa (not Lisa option)
Sampling Opt Tests the Sampling Option
Sine Wave Tests the sound hardware with sine waves
Sound ROM Tests the Sound ROM
Sound RAM Tests the Sound RAM
1st NVRAM Writes to the Non-Volatile and Expansion RAM
2nd NVRAM Checks the pattern written by the 1st NVRAM test
Digital IO Tests the Lisa Option
 
Table 2-1 Diagnostic Tests