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Chapter 5: Troubleshooting
Primary Trouble Isolation
Figure 5-4
LED Test Screen
3 Push the Marker A left and right arrow keys to highlight each LED symbol in the test
Test by Rows
You can use the Marker B arrow keys to test LEDs by row; however, in the event that two LED indicators
are shorted together, there is a small chance that the test will not reveal the failure.
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screen. Verify that the corresponding LEDs on the front panel are the only ones
illuminated.
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