Compaq Portable 486 Compaq Portable 486c Personal Computer Maintenance and Ser - Page 28

Table 3-5. Parallel Printer Test Error Codes

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Error Recommended Code Description Action 303 - 08 Keyboard LED test, The following steps apply command byte restore to error codes 301 - xx test failed through 304 - xx: 1. Check the keyboard 303 - 09 Keyboard LED test, LEDs connection. If failed to light disconnected, turn off the computer and 304 - 01 Keyboard typematic test connect the keyboard. failed 2. Replace the keyboard and retest. 304 - 02 Unable to enter mode 3 3. Replace the I/O board and retest. 304 - 03 Incorrect scan code from keyboard 304 - 04 No make code observed 304 - 05 Unable to disable typematic feature 304 - 06 Unable to return to normal mode Table 3-5. Parallel Printer Test Error Codes Error Recommended Code Description Action 401 - 01 Printer failed or not The following steps apply connected to error codes 401 - xx through 403 - xx: 402 - xx Printer port 1. If a printer is connected, be sure it 402 - 01 Printer data register is turned ON and in failed ONLINE mode. 2. Replace the printer 402 - 02 Printer control register cable and/or printer failed and retest. 3. Replace the I/O board 402 - 03 Printer data and control and retest. register failed 402 - 04 Printer loopback failed 402 - 05 Printer loopback and data failed 402 - 06 Printer loopback and control register failed 402 - 07 Printer loopback, data, and control register failed 402 - 08 Printer interrupt test failed

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-----------------------------------------------------------------------------
Error
Recommended
Code
Description
Action
-----------------------------------------------------------------------------
303 - 08
Keyboard LED test,
The following steps apply
command byte restore
to error codes 301 - xx
test failed
through 304 - xx:
1. Check the keyboard
303 - 09
Keyboard LED test, LEDs
connection. If
failed to light
disconnected, turn
off the computer and
304 - 01
Keyboard typematic test
connect the keyboard.
failed
2. Replace the keyboard
and retest.
304 - 02
Unable to enter mode 3
3. Replace the I/O board
and retest.
304 - 03
Incorrect scan code from
keyboard
304 - 04
No make code observed
304 - 05
Unable to disable typematic
feature
304 - 06
Unable to return to
normal mode
=============================================================================
Table 3-5. Parallel Printer Test Error Codes
=============================================================================
Error
Recommended
Code
Description
Action
-----------------------------------------------------------------------------
401 - 01
Printer failed or not
The following steps apply
connected
to error codes 401 - xx
through 403 - xx:
402 - xx
Printer port
1. If a printer is
connected, be sure it
402 - 01
Printer data register
is turned ON and in
failed
ONLINE mode.
2. Replace the printer
402 - 02
Printer control register
cable and/or printer
failed
and retest.
3. Replace the I/O board
402 - 03
Printer data and control
and retest.
register failed
402 - 04
Printer loopback failed
402 - 05
Printer loopback and data
failed
402 - 06
Printer loopback and control
register failed
402 - 07
Printer loopback, data, and
control register failed
402 - 08
Printer interrupt test failed