Compaq XL280 Maintenance & Service Manual page 49

Error Code Description
501-xx Video controller test failed
502-xx Video memory test failed
503-xx Video attribute test failed
504-xx Video character set test failed
505-xx Video 80 x 25 mode 9 x 14
character cell test failed
506-xx Video 80 x 25 mode 8 x 8
character cell test failed
507-xx Video 40 x 25 mode test failed
508-xx Video 320 x 200 mode color set
0 test failed
509-xx Video 320 x 200 mode color set
1 test failed
510-xx Video 640 x 200 mode test
failed
511-xx Video screen memory page test
failed
512-xx Video gray scale test failed
514-xx Video white screen test failed
516-xx Video noise pattern test failed
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Video Test Error Codes
Recommended Action
The following steps apply to error codes
501-xx through 516-xx:
1. Disconnect external monitor and test
with the Notebook display.
2. Replace the display assembly
retest.
3. Replace the system board
and
and retest.