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Issues with JD 8420ATR with Trimble FMX RTK AutoPilot
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Slink
Posted 7/28/2010 04:26 (#1291015 - in reply to #1289982)
Subject: Re: Issues with JD 8420ATR with Trimble FMX RTK AutoPilot


Have checked the trim increment and it is set at 2cm. Have replaced the 75741 Harness and no difference in behaviour of the machine. Have noticed now that the 1 PPS light in the AutoPilot Diagnostics screen is inconsistent and not always pulsing at 1 pulse per second. It seems to go ok for 2 seconds then holds for a second and then goes for 2 seconds again and then holds for the second. Occassionally this will happen in 3 good pulses and then hold for the second again. Have tried another GPS antenna cable and this has made no difference. Have tried a new octopus harness and removed all plugs from the octopus harness except power and the 75741 harness and still have the same issues.
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