DEC VAXmate Service Manual page 201

IIIII
Test Descriptions
1080287 TESTS
The first test checks for the presence of the math coprocessor (80287). If the
80287 coprocessor is not found, or does not respond correctly, a message
displays and testing is discontinued. If the 80287 coprocessor is found, its
ability to do the following is tested.
• Generate an interrupt
• Access memory and communicate with the 80286
• Control its internal stack
• Read and write all stack and environment
re~isters
• Generate exceptions
• Support data types
• Execute a subset of its instruction set
11 KEYBOARD TEST
Many of the keyboard tests are interactive. To terminate many of the interac-
tive subtests press the ALT/FI0 keys. This test checks the following.
• Keyboard interface processor and its interrupt capability.
• Industry-standard and DIGITAL extended and reserved commands.
• The four keyboard LEDs. The LEDs are initially off. You are prompted to
type a key to turn on the LEDs.
• The four volume levels of keyclicks. A keyclick is sent to the keyboard
speaker when you type a key. The clicks increase in volume as you con-
tinue to press keys.
• Autorepeat rate timing.
• Autorepeat delay timing. This tests all possible delay rates (250, 500,
750, or 1000 msec).
• Key functionality. A picture of the keyboard is displayed on the screen
and you press keys to make sure they are functioning.
B-8