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Servos going whacky at neutral!??

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Servos going whacky at neutral!??

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Old 08-21-2004 | 10:48 AM
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Default Servos going whacky at neutral!??

I'm just about finished with my Slow Stick and finally got the right channel crystal for my RX. (GWS 4P "J" shift). It's hooked up to my GWS100 speed controller and a couple of GWS Mini F servos. I'm using an older Airtronics VG4R TX. I don't have any control rods hooked up at this point. When I plug in the battery the servos go flying all over the place....real spastic. When I switch on the TX, they calm down and go to the correct neutral position and act normally. When I switch the TX off, they go all spastic again. At this point the RX is hanging by the wires and the antenna is stretched out on the work table. Battery is 7.4V 1100NiMH.

So what am I doing wrong?
Old 08-21-2004 | 11:13 AM
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Default RE: Servos going whacky at neutral!??

always turn on the TX first, then the RX.... to prevent what your saying.

Your doing nothing wrong.

then turn off the RX, then the TX
Old 08-21-2004 | 11:36 AM
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Default RE: Servos going whacky at neutral!??

i think your problem is that you are using gws servos. it sounds like the potentiometer may be bad or dirty.
Old 08-21-2004 | 11:52 AM
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Default RE: Servos going whacky at neutral!??

ALWAYS turn the TX on FIRST. The "spastic" servos is caused by the RX having power, but no input signal. The receiver/servos are searching for the input signal.
Old 08-21-2004 | 12:09 PM
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Default RE: Servos going whacky at neutral!??

Thanks Campy!. I knew is was something simple. God bless forums.....

Steve
Old 08-21-2004 | 01:28 PM
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Default RE: Servos going whacky at neutral!??

Steve,
One other note. Turning the receiver on first MAY cause one or more servos to turn hard over to one side and strip the gears.

Just one reason to remember Tx, first on and last off.
Dennis-

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