Hitec 20 Programmer & 7955s help

Flyinrazrback · 10-09-2008, 09:46 PM

I am trying to program my 7955s with the new HFP-20 programmer. I have set all the settings I want to change, and when done and unplug the servo, it says "fail" every time. I have tried it about 10 times and no luck. I start by resetting the servo, then setting the servo reverse, then the DB width, resolution, and last EPA. I am setting the center, push M, then turn the wheel left, push the UP/L, and then do the right, push the DN/R, and then unplug the servo and it says fail. I even tried turning the wheel left, and push the DN/R and vice versa, and still a fail. Out of ideas here, never had this problem with the old programmer and 5955s.

bpetty620 · 10-09-2008, 10:25 PM

I will let you know how mine goes, i will be programing x13 7955's with the same progamer tomorrow night. Good luck with your

Bradley

Tim G · 10-09-2008, 10:31 PM

Before unpluging the servo you must turn the adjust to the center and push the input button. Now the servo can be unpluged

Flyinrazrback · 10-09-2008, 11:40 PM

Thanks, going back to center and doing the input did the trick.

Tim G · 10-10-2008, 08:11 PM

I just setup a 35% Hanger 9 260 with these servos. I have 6 flights on it now and love the plane and the 7955's.

Tim

Neil4 · 10-10-2008, 10:39 PM

Hey guys,

i don't mean to start a band war between servo brands here but how does the 7955 compare to the JR 8711 as far as resolution and centering go? I am building a 40% Carden 300 this winter and has been tossing and turning between which servos to get. I plan on running 2 servos per wing, 1 per stab, and 2 on a push-pull on the rudder. I would like to go Hitec because i don't want to have to deal with the slop but if the Hitecs don't perform like JR, then I will get JR and deal with the slop issue.

Thanks and let me know what you guys think,

Neil

SpecializedRC · 10-10-2008, 10:49 PM

There both good. I just built a Carden 300 and its wrapped in 7955. The reason being that my emcotec doesnt have matching or reversing. So I bought the Hitecs so i could program them with little to no radio mixes and no matchboxes. With the JR you get the 400+oz. torque. But the Hitecs are 333oz. torque. So your ailerons will have 800+ compared to 666+oz. For the $25 diffrence its up to you. BTW with the 2 hitecs on the rudder the thing will do a knife edge loop with no problem.
Just my 2 cents.
Jon

Nelvick · 10-23-2008, 10:53 AM

What is the default resolution of the servo and the maximun with the programmer ?

10-09-2008, 09:46 PM	#1 (permalink)
Flyinrazrback Bad-ass Super Contributer! Join Date: Jan 2006 Location: Shreveport LA Posts: 1,742	Hitec 20 Programmer & 7955s help I am trying to program my 7955s with the new HFP-20 programmer. I have set all the settings I want to change, and when done and unplug the servo, it says "fail" every time. I have tried it about 10 times and no luck. I start by resetting the servo, then setting the servo reverse, then the DB width, resolution, and last EPA. I am setting the center, push M, then turn the wheel left, push the UP/L, and then do the right, push the DN/R, and then unplug the servo and it says fail. I even tried turning the wheel left, and push the DN/R and vice versa, and still a fail. Out of ideas here, never had this problem with the old programmer and 5955s.

10-09-2008, 10:25 PM	#2 (permalink)
bpetty620 Craig's Daddy Join Date: Aug 2006 Location: Spartanbut SC, USA Age: 23 Posts: 101	Re: Hitec 20 Programmer & 7955s help I will let you know how mine goes, i will be programing x13 7955's with the same progamer tomorrow night. Good luck with your Bradley

10-09-2008, 10:31 PM	#3 (permalink)
Tim G Gettin' Lower! Join Date: Jan 2006 Location: Mayfield, KY Age: 45 Posts: 65	Re: Hitec 20 Programmer & 7955s help Before unpluging the servo you must turn the adjust to the center and push the input button. Now the servo can be unpluged

10-09-2008, 11:40 PM	#4 (permalink)
Flyinrazrback Bad-ass Super Contributer! Join Date: Jan 2006 Location: Shreveport LA Posts: 1,742	Re: Hitec 20 Programmer & 7955s help Thanks, going back to center and doing the input did the trick.

10-10-2008, 08:11 PM	#5 (permalink)
Tim G Gettin' Lower! Join Date: Jan 2006 Location: Mayfield, KY Age: 45 Posts: 65	Re: Hitec 20 Programmer & 7955s help I just setup a 35% Hanger 9 260 with these servos. I have 6 flights on it now and love the plane and the 7955's. Tim


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10-10-2008, 10:39 PM	#6 (permalink)
Neil4 Bad-ass Super Contributer! Join Date: Jul 2007 Location: Maryland Posts: 449	Re: Hitec 20 Programmer & 7955s help Hey guys, i don't mean to start a band war between servo brands here but how does the 7955 compare to the JR 8711 as far as resolution and centering go? I am building a 40% Carden 300 this winter and has been tossing and turning between which servos to get. I plan on running 2 servos per wing, 1 per stab, and 2 on a push-pull on the rudder. I would like to go Hitec because i don't want to have to deal with the slop but if the Hitecs don't perform like JR, then I will get JR and deal with the slop issue. Thanks and let me know what you guys think, Neil __________________ Carden Aircraft Once you go Carden you won't go Back Stansphotos.com Some of the best pictures you will ever see After flying Albert Sanitago's Carden 300, I realized how well Cardens fly That's why I am getting one this winter

10-10-2008, 10:49 PM	#7 (permalink)
SpecializedRC Gettin' Lower! Join Date: Apr 2008 Posts: 46	Re: Hitec 20 Programmer & 7955s help There both good. I just built a Carden 300 and its wrapped in 7955. The reason being that my emcotec doesnt have matching or reversing. So I bought the Hitecs so i could program them with little to no radio mixes and no matchboxes. With the JR you get the 400+oz. torque. But the Hitecs are 333oz. torque. So your ailerons will have 800+ compared to 666+oz. For the $25 diffrence its up to you. BTW with the 2 hitecs on the rudder the thing will do a knife edge loop with no problem. Just my 2 cents. Jon __________________ www.specializedaircraftco.com

10-23-2008, 10:53 AM	#8 (permalink)
Nelvick Gettin' Lower! Join Date: Jul 2008 Location: Sebring, Florida Age: 30 Posts: 68	Re: Hitec 20 Programmer & 7955s help What is the default resolution of the servo and the maximun with the programmer ? __________________ Aeroworks Extra 260 35% with DA-100 PW Extra 25% 300S with DL-50 V2 U-Can-Do 3D 46 Electric Himax 5018-530 ShowTime 50 with Saito 72

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