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For a Single run, the test runs one time, and the screen shows the results.
13
To exit the ROM Test, select Done. Note that the status changes to Passed or Failed.
14 Install a formatted disk that is not write protected into the disk drive. If option 020
is installed, connect an RS-232C loopback connector onto the RS-232C port. Run the
remaining System Tests in the same manner.
If option 020 is not installed in the 1664A, the RS-232C test will return a FAILED status.
15 Select the Front Panel Test.
A screen duplicating the front-panel appears on the screen.
a Press each key on the front panel. The corresponding key on the screen will change
from a light to a dark color.
b Test the knob by turning it in both directions.
c Note any failures, then press the Done key a second time to exit the Front Panel Test.
The test screen shows the Front Panel Test status changed to Tested.
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Select the Display Test.
A white grid pattern is displayed. These display screens can be used to adjust the display.
a Select Continue and the screen changes to full bright.
b Select Continue and the screen changes to half bright.
c Select Continue and the test screen shows the Display Test status changed to Tested.
Troubleshooting
To run the self-tests
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