Compaq Portable 486 Compaq Portable 486c Personal Computer Maintenance and Ser - Page 27

Table 3-4. Keyboard Test Error Codes, Replace the I/O board

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page not present 211 - xx Random Pattern Test 211 - 01 Memory random pattern test failed 211 - 02 Error during saving program memory and random pattern in write/read test 211 - 03 Error during restore of program memory and random pattern in write/read test 211 - 04 Insufficient memory to perform test 211 - 05 Inverted pattern compare, but RAM correct Table 3-4. Keyboard Test Error Codes Error Recommended Code Description Action 301 - 01 Keyboard short test, The following steps apply 8042 self test failed to error codes 301 - xx through 304 - xx: 301 - 02 Keyboard short test, 1. Check the keyboard interface test failed connection. If disconnected, turn off 301 - 03 Keyboard short test, echo the computer and test failed connect the keyboard. 2. Replace the keyboard 301 - 04 Keyboard short test failed and retest. 3. Replace the I/O board 302 - 01 Keyboard long test failed and retest. 303 - 01 Keyboard LED test, 8042 self test failed 303 - 02 Keyboard LED test, reset test failed 303 - 03 Keyboard LED test, reset test failed 303 - 04 Keyboard LED test, LED command test failed 303 - 05 Keyboard LED test, LED command test failed 303 - 06 Keyboard LED test, LED command test failed 303 - 07 Keyboard LED test, LED command test failed

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page not present
211 - xx
Random Pattern Test
211 - 01
Memory random pattern
test failed
211 - 02
Error during saving program
memory and random pattern
in write/read test
211 - 03
Error during restore of
program memory and random
pattern in write/read test
211 - 04
Insufficient memory to
perform test
211 - 05
Inverted pattern compare,
but RAM correct
=============================================================================
Table 3-4. Keyboard Test Error Codes
=============================================================================
Error
Recommended
Code
Description
Action
-----------------------------------------------------------------------------
301 - 01
Keyboard short test,
The following steps apply
8042 self test failed
to error codes 301 - xx
through 304 - xx:
301 - 02
Keyboard short test,
1. Check the keyboard
interface test failed
connection. If
disconnected, turn off
301 - 03
Keyboard short test, echo
the computer and
test failed
connect the keyboard.
2. Replace the keyboard
301 - 04
Keyboard short test failed
and retest.
3. Replace the I/O board
302 - 01
Keyboard long test failed
and retest.
303 - 01
Keyboard LED test, 8042
self test failed
303 - 02
Keyboard LED test, reset
test failed
303 - 03
Keyboard LED test, reset
test failed
303 - 04
Keyboard LED test, LED
command test failed
303 - 05
Keyboard LED test, LED
command test failed
303 - 06
Keyboard LED test, LED
command test failed
303 - 07
Keyboard LED test, LED
command test failed