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Old Sep 23, 2014, 06:12 PM
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Help!
Two servos don't 'move' together!

I have two NIB servos that when connected to a "Y" harness do not play well together....One will move, stop, then the other moves. I do have access to a HFP-25 programmer and have "reset' both only to discover nothing changes. I even tried connecting them to two different ports on a receiver (Specktrum 7100 and using a JR 9303 tx and DX8) and the same thing happens....I MUSTBE DOING SOMETHING WRONG!

Even tried different RX and TX, and one servo moves, stops, then the other servo moves to about 1/2 of the throw.

What is it?

Jerry
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Last edited by tailskid2; Sep 26, 2014 at 03:29 PM.
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Old Sep 26, 2014, 03:27 PM
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I guess the $100 servos are junk then!

OR no one knows what is happening......
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Old Sep 26, 2014, 10:40 PM
most exalted one
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What servos? People don't know where to start. plug them into elev and ail channels and tell us if they move full on separate channels and........
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Old Sep 26, 2014, 11:30 PM
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Servos are HS-5585-mn and I have plugged them in a variety of channels and one moves, stops then the other one moves!
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Old Sep 27, 2014, 12:56 PM
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tailskid2,

I have been watching this since you posted it. I wander why no response from
Hitec.!

Warm Regards,

Travis
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Old Sep 27, 2014, 02:27 PM
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And that makes two of us!
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Old Sep 27, 2014, 09:02 PM
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haven't give up - YET - so I tried a new Futaba R617FS RX with the same "Y" connector and BINGO! everything worked as it should.....then quickly plugged that connector into the Specktrum and ZIP.....one moves, then the other and now the second one decides NOT to return to neutral....move tx stick and after 3-4 times neither servo moves, then one decides to respond leaving the other behind, after a couple of microseconds, then that one moves.....I think I'm going to sell these servos and buy some JR servos......this is going on for too long!

Jerry
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Old Oct 02, 2014, 04:20 PM
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Sounds like maybe a standard servo plugged into a D-bus receiver? Does Spektrum have D-Bus or equivalent versions?
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Old Oct 02, 2014, 04:38 PM
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I think I found the trouble....my 6 volt battery was being charged by a charger that wasn't really charging it and for some reason would fail under a load....and those HiTec servos were taking a stronger load than the analog and digital JR servos.

Bought a new 6 volt battery and so far both HiTec servos are working as they should - but I'll keep testing them before flying with them.
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