Compaq 486 Maintenance And Service Manual page 29

402 - 09 Printer interrupt and data
register failed
402 - 10 Printer interrupt and control
register failed
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Error
Code Description
-----------------------------------------------------------------------------
402 - 11 Printer interrupt, data, and
control register failed
402 - 12 Printer interrupt and
loopback failed
402 - 13 Printer interrupt, loopback,
and data register failed
402 - 14 Printer interrupt, loopback,
and control register failed
402 - 15 Printer interrupt, loopback,
data, and control register
failed
402 - 16 Printer unexpected interrupt
received
402 - 25 Printer multiple interrupt
402 - 26 Printer multiple interrupt
403 - 01 Printer pattern test failed
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Table 3-6. Active Matrix Color Display Test Error Codes
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Error
Code Description
-----------------------------------------------------------------------------
501 - 01 Video Controller Test
Failed
502 - 01 Video Memory Test
Failed
503 - 01 Video Attribute Test
Failed
504 - 01 Video Character Set Test
Failed
505 - 01 Video 80 x 25 Mode
9 x 1 Character Cell
Test Failed
506 - 01 Video 80 x 25 Mode
8 x 8 Character Cell Test
Failed
Recommended
Action
The following steps apply
to error codes 401 - xx
through 403 - xx:
1. If a printer is
connected, be sure it
is turned ON and in
ONLINE mode.
2. Replace the printer
cable and/or printer
and retest.
3. Replace the I/O board
and retest.
Recommended
Action
Replace the video board
and retest for error
codes 501 - xx through
516 - xx.