7.6.6 Keyboard

The keyboard diagnostic consists of an external and an internal loopback. The external loopback requires a passive loopback connector. The internal loopback verifies the keyboard port by transmitting and receiving 128 characters.

The following example shows the keyboard diagnostic output message.

Example 7-3

Enter (0-11 tests, 12 -Quit, 13 -Menu) ===> 3

TEST='keyboard_test'
SUBTEST='internal_loopback'
Enter (0-11 tests, 12 -Quit, 13 -Menu) ===>