Digi PortServer TS 8 Manuel de service télécharger pdf (Page 95)

Page 86 Appendix

Front Panel Display Diagnostics

Enter Front Panel Mode by pressing either the left or right pushbutton on the front panel during

the POST startup tests.

At this time, all of the lights (LEDs) go OFF, the left 7-segment display is blank, and the right 7-

segment display reads “1.” The right decimal point blinks at a 1 second rate. At this point, Test 1

- Panel Light Test is selected.

The front panel display diagnostics use the 10 LEDs, 14 LED segments, two decimal points, and

the two pushbuttons for an operator interface.

To select a test, press the right pushbutton (

). The right LED will cycle through the possible

test numbers. Once the desired test has been selected, press the left pushbutton (

) to start the

test. The left decimal point will light to indicate the test has started and the appropriate test

information will begin updating via the front panel indicators.

The selected test will continue to cycle until an error is detected or until you stop the test by

pressing the

pushbutton. Failures accumulate and count up in the 10 digit LED display.

To stop the test with the

pushbutton, press and hold the button and wait for the left decimal

pointtogoOFF.Thenreleasethe

pushbutton and the test will stop.

The left alphanumeric display will display either a “P” or an “F” for pass or fail respectively.

The right display will show the test number that was just executed. “P3” indicates that test 3 has

passed, while “F3” indicates that the test failed.

Basic Test Descriptions

The following descriptions explain the test philosophy for each functional diagnostic test. The

basic test is the same whether it is run from the video display or the front panel display.

Test 1 - Panel Light Test

This test cycles the 10 LEDs ON and OFF and both seven-segment displays in one second

intervals. Since the LEDs and seven-segment displays are all write only, the operator must make

a visual check of the indicators to ensure that they all cycle correctly. The pushbuttons are read

by the test and checked for the non-depressed state (0).

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Digi PortServer TS 8 Manuel de service Page 95