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NES-4131 soft spot

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Old 04-28-2004, 07:59 AM
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marvintm
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Default NES-4131 soft spot

I have a 4131 on the wing of a 90 size plane. It has developed a soft spot in the travel just off (my) center where the travel slows down to a crawl and then picks back up again. This was tested running the digital subtrim on the radio up and down at a consistent rate. I swapped a new one and it does not do this. Is this servo on the way out? Is it trustworthy? It's less than a year old and is fine otherwise with no jitter.
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Old 04-28-2004, 09:40 AM
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dsnyder
 
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Default RE: NES-4131 soft spot

This sounds like it could either be a bad pot or perhaps an partially blown amp. It does sound like the servo needs to come in for a check up.
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