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04-02-2005 10:31 PM  13 years agoPost 1
r1gga

rrApprentice

Palo Alto, CA

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Hi,

I have had a good traul of the Macgregor website, the manual and the web and can't find anything on my problem. Hopefully somebody can help me out though.

I recently took my my JR 378 / x2610 apart to modify the throttle stick tension and also replace the ratchet mechanism with a smoother metal strip. Whilst doing this I disconnected the battery and it was approximately half an hour before I had reassambled the controller and reconnected the battery.

After turning the Tx on, the desired tension changes has been successful and the throttle stick is now smooth (no ratcheting). All my memmories had been retained and everything was fine on the simulator and doing some fast stall turns with my zoom in the garden.

I decided I would get out the old hummingbird after a period of maintenance and after placing the model on the floor and disengaging throttle hold the throttle was at bottom position, but the rotors started to turn. Hmm... I immediately turned off the bird and had a look at the thottle signal I was transmitting.

At bottom stick I am transmitting 16 for throttle and at top stick I am transmitting 84. This normally is 0 and 100 respectively. After more fiddling I realised it was not just throttle exhibiting reduced throw, but all channels linked to the sticks, i.e. aileron, elevator and tail.

Why has my throw been reduced? It applies globally to all model memmories and when I create a factory default new model the problem prevails. Did I touch something inside the Tx?? Is there a global stick throw menu?

My thinking is that the prolonged period being disconnected from the battery triggered some calibration process during which the sticks weren't moved sufficiently.

Please help.... I am going to leave the battery out all night and ring Macgregor during the week. The Tx is under a year old.

Let me know if you can help...

r1gga

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04-03-2005 12:07 AM  13 years agoPost 2
r1gga

rrApprentice

Palo Alto, CA

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Follow up...
Now the FM transmitter has died. I guess the Tx has gone bad... I will let you know how I get on with Macregor (JR). I think the only fix will be a new Tx, it may be time for an upgrade , not that my wallet can afford it!

I am thankful that the Tx didn't die during flight!

It served me well on the last flight, when I lost the tail for mechanical reasons coming out of a 15m high stall turn. I was able to perform an emergency autorotation and suffered only a broken skid (with a zoom 400!!).

If there is a good last battle for a Tx to fight, that would have been it!

RIP JR x2610...

r1gga

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04-03-2005 12:06 PM  13 years agoPost 3
9387ASH

rrElite Veteran

UK

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R1gga,

if its less than a year old, then I will repair it FOC. Get it back to MacG's as soon as possible. Send it direct marked warranty repair on your covering note. ( That way I will boost its priority )


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04-03-2005 03:39 PM  13 years agoPost 4
r1gga

rrApprentice

Palo Alto, CA

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This forum is excellent for connecting with people!

If it is the case that my transmitter requires replacement. Do MacG offer an upgrade path to a superior Tx?

Thanks in advance,

r1gga

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04-05-2005 01:54 PM  13 years agoPost 5
9387ASH

rrElite Veteran

UK

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R1gga,

I hate to say this but your transmitter is now repaired. Free of charge... a transistor had decided to die, but found the little swine and its fixed now. Should be on its way back to you later this afternoon.

Sorry I couldnt write it off for you....


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04-06-2005 01:50 AM  13 years agoPost 6
r1gga

rrApprentice

Palo Alto, CA

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Thanks Tony,

I am very impressed with the speed at which you guys at JR work. It leads me to believe you sit around all day twiddling your thumbs!

I was worried that perhaps the problem would be something silly that I had overlooked. On the otherhand Ken at MacG customer services theorized that perhaps the reflex stereo jack had somehow damaged the unit voiding the warranty. Regardless I thought I would be without helis for a week or two at least!

When I do have the extra cash to spend on a Tx, it will definately be a JR. Unfortunately since I am moving to Western Australia in July I won't be able to benefit from such great customer service. Does Macgregor customer services exist in Australia?

Anyway, it looks like I wrote down every setting in my Tx for nothing...

I'll let you know when it arrives, hopefully Wednesday.

Many thanks,
Nick

r1gga

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04-06-2005 01:59 AM  13 years agoPost 7
9387ASH

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UK

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Hmmmm MacGregor in the land of Oz ?? Yep !!! If you pay for my return flight and Hotel acco !!!


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04-06-2005 02:00 AM  13 years agoPost 8
9387ASH

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UK

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Well..... you did as I asked, amd placed Warranty repair on the label. I had it processed through Ken asap and took it straight away. The rest of the stuff on the shelf had to wait a few minutes until I got yours repaired, tested and then back to Ken.


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04-06-2005 12:37 PM  13 years agoPost 9
r1gga

rrApprentice

Palo Alto, CA

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Hi again,

Got the delivery at 12.15pm today, all the memories are still there. The RF transmission is now functioning

BUT....

The throws are still restricted across all models. I think you guys might've missed that one.

Looking at my thottle curve at bottom stick, I = 16, at top stick, I = 87.

I will send it back to you guys today, but I am a bit annoyed at having to pay 2 lots of postage. Please advise,

Many thanks

r1gga

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04-06-2005 05:14 PM  13 years agoPost 10
9387ASH

rrElite Veteran

UK

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Gulp !!! Have tied myself to the whipping post ! I goofed up on that assuming that the throws were related to the loss of deviation from the transmitter.

I'll sort something out for you....

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04-06-2005 07:16 PM  13 years agoPost 11
r1gga

rrApprentice

Palo Alto, CA

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Hi,

No problem, no problem...

I think the problem is down to stick calibration... is this done electronically or by means of some internal pot?

Fortunately the weather is not helicopter friendly at the moment, so I'm not missing out. The Tx should be in your possession tomorrow.

Whilst your at it, do MacG do a ratchet alternative for the throttle stick? I'm having to make do with the standard strip hammered flat, which is still notchy at the top and bottom positions. Ideally the thottle stick would be totally smooth.

BTW Feel free to accidentally slip in a PCM10x / Venture 90 / Neck Strap for the return trip!

Many thanks,

r1gga

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04-06-2005 08:17 PM  13 years agoPost 12
9387ASH

rrElite Veteran

UK

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HI Matey,

Its an electronic calibration which should only take me a few minutes to sort out, but I will fit a flat ratchett for you.


Hmmmm how to hide a 10X or a V90 into such a small box ?? You should have bought the Tardis variant.

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04-09-2005 09:38 PM  13 years agoPost 13
r1gga

rrApprentice

Palo Alto, CA

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Hi,

I have now recieved my repaired Tx. I am very pleased with the results. The new thottle ratchet makes collective control much smoother. It more than makes up for the extra postage I had to pay . The sticks are now all correctly calibrated, although I am at a loss as to how I de-calibratd them in the first place!

I have to say I am very pleased witht he speed of service from JR. The Tx has been to slough and back twice inside six days! Although, the next time something goes wrong it will be out of warranty? Does JR servicing extend the warranty by any period? In any case I should hopefully have a superior Tx within the next year... wallet allowing!

Let me know if JR ever run into any surplus stock that they need taken off their hands!

Many thanks to all at JR services,

Nick Robinson

r1gga

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04-10-2005 12:16 AM  13 years agoPost 14
9387ASH

rrElite Veteran

UK

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Hi Nick,

glad you are a happy bunny again, should anything go wrong with the RF again, that will be covered for an extra period of time. How long I'm not too sure of but let me know should it go wrong and I will have a word with the boss.


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