Swapped crystal - changed trims??  
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All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> Swapped crystal - changed trims??
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Swapped crystal - changed trims?? - 6/22/2005 4:13:18 AM   
Yo! Team Green


 

Posts: 76
Joined: 3/25/2002
From: Rochester, WA, USA
Status: offline 		I fly Hitec 555 receivers in several of my race planes and recently swapped crystals from one to another (same channel) while performing some testing related to range checking. I had flown the plane in the morning and it was well-trimmed. After the crystal swap, the rudder, ailerons, and elevator were all out of trim. Is it possible for a crystal swap to result in trim changes?



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Had a bad year? My newest plane is a Bird of Pray.
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RE: Swapped crystal - changed trims?? - 6/22/2005 9:35:30 PM   
tohm


 

Posts: 152
Joined: 5/25/2004
From: Poway, CA, USA
Status: offline 		The crystals do not affect the trims. I would start looking elsewhere. What transmitter are you using?

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Tony Ohm
Hitec/ Multiplex USA

(in reply to Yo! Team Green)
       Post #: 2

RE: Swapped crystal - changed trims?? - 6/23/2005 5:18:57 AM   
Yo! Team Green


 

Posts: 76
Joined: 3/25/2002
From: Rochester, WA, USA
Status: offline 		The transmitter is a Futaba T8UAF. I have the Campac module installed and this particular plane is stored oonce in the Tx memory and once in the Campac. This plane's trim was messed up in both places. 5 other planes that I have tested are all OK. I am definitely at a loss for an explanantion to the trim change.
>Thom

_____________________________

Had a bad year? My newest plane is a Bird of Pray.

(in reply to tohm)
       Post #: 3

RE: Swapped crystal - changed trims?? - 6/23/2005 4:47:01 PM   
tohm


 

Posts: 152
Joined: 5/25/2004
From: Poway, CA, USA
Status: offline 		I'm at a loss also. If you like I can take a look at the receiver, but I'm not sure if I'll find anything.

_____________________________

Tony Ohm
Hitec/ Multiplex USA

(in reply to Yo! Team Green)
       Post #: 4

RE: Swapped crystal - changed trims?? - 6/24/2005 11:55:50 PM   
Yo! Team Green


 

Posts: 76
Joined: 3/25/2002
From: Rochester, WA, USA
Status: offline 		I appreciate your offer but I am going to do a little more tinkering this weekend. I'll swap the crystals back and see if there's a change (I know there should be no change). A little closer look at the transmitter is also warranted. Thanks for your info. I will post back here if I find anything definite. >Thom

_____________________________

Had a bad year? My newest plane is a Bird of Pray.

(in reply to tohm)
       Post #: 5

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All Forums >> Radios, Batteries, Clubhouse and more >> RC Radios, Transmitters, Receivers, Servos, gyros >> Radio Manufacturer Direct Support >> Hitec/MultiPlex Radios- Ask Hitec Customer Service >> Swapped crystal - changed trims??
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