Compaq Presario,Presario 18XL191 User Manual page 50

Models: XL180, XL181, XL182, XL183, XL184, XL185,
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
14 T
ROUBLESHOOTING
Presario 1800 Series
and XL190, XL191, XL192
Video Test Error Codes
Recommended Action
1. Disconnect external monitor and test
with the Notebook display.
2. Replace the display assembly
retest.
3. Replace the system board
P N
RESARIO
M S
OTEBOOK AINTENANCE AND ERVICE
and
and retest.
G 1800 S
UIDE ERIES