Troubleshooting
Testing the Keyboard
Use the
Keyboard Test
to determine if the keyboard is working properly.
1.
Open the
Diagnostic Tests
window as described in
Diagnostics Function” on page 33
.
2.
Select
Keyboard Test
.
The following window opens.
3.
Press each key on the keyboard and verify that an asterisk (*) appears in the
corresponding representation of that key on the screen.
A key passes the test if an asterisk appears on the screen when the
corresponding key is pressed.
4.
To test for
sticky keys
, continue to press keys that already have an asterisk on
the screen and verify that the screen representation of the key is highlighted
with each subsequent key press.
A key passes if the key on the screen highlights with each repeated key press.
5.
When the test is done, press
Shift
+
F6
.
The following window opens.
6.
Select pass or fail:
• If every key passes the tests, press
F4
(
Yes
).
• If any key fails the tests, press
F5
(
No
).
If the keyboard test failed, replace the keyboard assembly as described in
“Replacing the Keyboard” on page 67
.
2028451-183E
MAC™ 1600
37
Summary of Contents for MAC 1600
Page 18: ...Introduction 18 MAC 1600 2028451 183E...
Page 26: ...Equipment Overview Block Diagram 26 MAC 1600 2028451 183E...
Page 28: ...Equipment Overview 28 MAC 1600 2028451 183E...
Page 108: ...Maintenance 108 MAC 1600 2028451 183E...
Page 111: ...Parts Lists 2028451 183E MAC 1600 111...
Page 112: ...Parts Lists 112 MAC 1600 2028451 183E...
Page 113: ...Parts Lists 2028451 183E MAC 1600 113...
Page 128: ...Parts Lists 128 MAC 1600 2028451 183E...
Page 140: ...Electromagnetic Compatibility 140 MAC 1600 2028451 183E...
Page 145: ......