Compal JHT01 Service Manual page 131

Yes
Does typed characters appear correctly?
Yes
Insert the diagnostics disk into FDD.
Then run the diagnostics test program.
Yes
Is the diagnostics test loaded?
Yes
Allow each test to perform automatically
Is an error detected by any of the
diagnostics tests?
No
System is normal
End
Figure 6-1 Troubleshooting flowchart (2/2)
JHT01 Service Manual
Perform the keyboard
Troubleshooting procedures
No
in section 6-5
Perform the FDD
Troubleshooting procedures
No
in section 6-4
After confirming which
diagnostics test has detected
an error, perform the
Yes
appropriate procedure as
outlined below.
6-3