Toshiba 420CDT - Running Test

3-48 420 Series
3.22 Running Test
3.22.1 Function Description
This function automatically executes the following tests in sequence:
1. System test (subtest number 01)
2. Memory test (subtest number 01, 02, 04, 06)
3. Display test (subtest number 01, 03, 05)
4. FDD test (subtest number 02)
5. HDD test (subtest number 01, 05)
6. Real timer test (subtest number 02)
7. Printer test (subtest number 03) if selected
8. Async test (subtest number 01) if selected
The system automatically detects the number of floppy disk drives connected to the computer
for the FDD test.
3.22.2 Operations
NOTE: Do not forget to load a work disk in the FDD. If a work disk is not loaded, an
error will be generated during the FDD testing.
1. Remove the diagnostics disk from the floppy disk drive and insert the work disk.
2. Selecting 6 from the Diagnostic Menu and pressing Enter displays the following
message:
Printer wrap around test (Y/N) ?
Selecting Y (yes) executes the printer wraparound test. A printer wraparound
connector must be connected to the parallel port of the computer to properly
execute this test.
3. Selecting Y or N and pressing Enter displays the following message:
Serial #A wrap around test (Y/N) ?
Selecting Y (yes) executes the ASYNC wraparound test. An RS-232-C wrap-
around connector must be connected to the serial port of the computer to properly
execute this test.