Acer Altos G520 series User Manual page 182

172
Diagnostic LED Decoder
Check
G=Green, R=Red, A=Amber
point
MSB
EF A
F0 R
F1 R
F2 R
F3 R
F5 R
FA A
FB A
F4 R
FC A
FD A
Appendix F: Diagnostic Code Checkpoints
LSB
A A G
R R R
R R A
R A R
R A A
A R A
R A R
R A A
A R R
A R R
A R A
Description
Read error occured on
media. Jump back to
checkpoint EB.
Search for pre-defined
recovery file name in root
directory.
Recovery file not found.
Start reading FAT table
and analyze FAT to find
the clusters occupied by
the recovery file.
Start reading the recovery
file cluster by cluster.
Disable L1 cache.
Check the validity of the
recovery file configuration
to the current
configuration of the flash
part.
Make flash write enabled
through chipset and OEM
specific method. Detect
proper flash part. Verify
that the found flash part
size equals the recovery
file size.
The recovery file size does
not equal the found flash
part size.
Erase the flash part.
Program the flash part.