Toshiba T-Series T2000, Maintenance Manual

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2-7
1
Do typed characters No Perform the keyboard problem
appear correctly? isolation procedures in
Section 2.7.
Yes
Insert the Diagnostics Disk
into the FDD. Then type
A:TESTCE2
and
press Enter .
Perform each test.
After confirming which diagnostic
test detected an error, perform the
Is an error detected in Yes relevant problem isolation
the diagnostics program? procedures as indicated below.
No
System is normal.
END
Figure 2-1 Problem isolation flowchart (continued)
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