Toshiba T2000 Maintenance Manual page 21

1
Do typed characters
appear correctly?
Insert the Diagnostics Disk
into the FDD. Then type
A:TESTCE2 and
press Enter.
Perform each test.
Is an error detected in
the diagnostics program?
System is normal.
END
If the diagnostics program does not detect any errors, the problem may be intermittent. The run-
ning test should be executed several times to isolate the problem.
After confirming which diagnostic test detected an error(s), refer to the appropriate section as
follows:
If an error is detected on the system test, memory test, display test, ASYNC test, printer
test, or real timer test, perform the system board problem isolation procedures in Section
2.4.
If an error is detected on the keyboard test, perform the keyboard problem isolation proce-
dures in Section 2.7.
If an error is detected on the floppy disk test, perform the FDD problem isolation proce-
dures in Section 2.5.
If an error is detected on the hard disk test, perform the HDD problem isolation procedures
Yes
No
Figure 2-1 Problem isolation flowchart (continued)
No Perform the keyboard problem
isolation procedures in
Section 2.7.
After confirming which diagnostic
test detected an error, perform the
Yes relevant problem isolation
procedures as indicated below.
2-7