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Old 12-09-2012, 10:01 AM
  #7  
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Join Date: Nov 2012
Location: Ladson, SC
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Default RE: Servos jumping on power-up

OK, I'll throw a wrench in the trouble shooting servo jump.

First, nearly all my Airtronic rigs have some minor degree of jump. I've come to recognise it as a good power up. Servo jump moments after a turn on the rx usually meant low battery.

Now, with this discussion I went out in the build room where I'm re-radioing my old trusty Fleet model 10. I've two Airtronics 322 servos on a walking beam driving the elevator. New SD8000 with new 6 VDC batts. Both servos are Y corded to the elevator channel.

Turning on tx then rx and only one of the two elevator servos jump. Down is the preferred and did note that it jumps until the blue light on the rx comes on then assumes it's proper position. Occured each time I lit 'er up and it didn't matte if I used a 6vdc or 4.8 vdc battery.

Soooo....??

Ray W.