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Strange Futaba Mini Servo Problem

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Old 11-19-2002, 12:57 PM
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Sirantony
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Default Strange Futaba Mini Servo Problem

I wonder if anyone can help. I have 2 little used Futaba S133 micro servos purchased with a Thunder Tiger "Centurion" park flyer combo. For some reason the servos have stopped operating. On switching on receiver battery servos give 1 mini twitch. On switching on transmitter - NOTHING.
However I find that If I manually turn the servo arm transmitter control will operate just to return the arm to its original position. Both servos exhibit the same identical sympton. Are the servos worth saving or are they junk.
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Old 11-19-2002, 02:13 PM
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Dsegal
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Default Strange Futaba Mini Servo Problem

Are you sure that the polarity of your connectors is correct?

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Old 11-19-2002, 07:34 PM
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Sirantony
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Default Strange Futaba Mini Servo Problem

Yes, polarity is ok.
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Old 11-19-2002, 07:52 PM
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Phil Cole
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Default Strange Futaba Mini Servo Problem

I'd suspect the transmitter first, since it's unlikely both servos failed at the same time.
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Old 11-19-2002, 11:50 PM
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locoworks
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Default ???????????

did the servo's used to work with that receiver?? has your tranny switched itself over to pcm modulation?? also, some receivers and speed controllers don't work in certain combinations, maybe your receiver is not compatible with your tranny. also, some synthesised trannies don't work when the same tranny with a crystal module in works fine. try a different receiver with the servo's and see what happens.
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