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Display is blank.
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No power.
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Check harness connections at display.
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Out of contrast or insufficient backlighting.
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Adjust contrast.
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Change backlighting level.
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Display audible alarm does not sound.
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Possible failed alarm.
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See your John Deere dealer.
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Display is locked up on a certain page.
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Communication problem.
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Turn key switch OFF and ON.
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Dual display will not operate properly.
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Incorrect display address.
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Make sure Parallel Tracking display is set to auxiliary 1 and main display is set to primary.
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If using a single display make sure address is set to primary.
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