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**Rctintin** · 23-12-2012, 02:42 PM

Make sure you have the trim levers disabled in the menu. I bet one of them has moved, they are the ones on the back outside edge of the Tx.

**tourerjim** · 23-12-2012, 03:17 PM

They've been inh, moment you get to mid stick motor cuts out also just noticed throttle hold when flicted also disables servo's.

**tourerjim** · 23-12-2012, 07:10 PM

Blimey can't even find it in the manual other than a mention in throttle hold (stick auto cut) but that's inh so still lost to why

**st200ol** · 23-12-2012, 07:11 PM

Could it be the ESC on that particular helicopter?

Edit:

But you say servos are affected too, could be the Receiver maybe.

**coolice** · 23-12-2012, 07:26 PM

Hey Jim.

Have you looked at the monitor page to see if any of the channel bars move that shouldn't when throttle hold is activated, or just as the throttle get's to the mid point?
These may give you an indication of what could be happening, for instance if you have a dodgy throttle potentiometer on the gimbal.
.

**tourerjim** · 23-12-2012, 07:51 PM

Ian, just checked monitor that's ok its bang on mid stick when it does it & effects esc, drop throttle esc resets & blades will spool to mid stick again

**coolice** · 23-12-2012, 08:23 PM

Originally posted by tourerjim View Post

Ian, just checked monitor that's ok its bang on mid stick when it does it & effects esc, drop throttle esc resets & blades will spool to mid stick again

Hey Jim.

What ESC is giving you the problems mate, it is a Castle or Align unit?
If it's a Castle, could the throttle calibration be off and need redoing?

Failing that, I'd probably reset the model memory or try another blank one to test the throttle only and if the problem went away then blank the current model memory and start again. Not heard of these type of problems on a JR set, but have on others which have been fixed with a reset.
.

**tourerjim** · 23-12-2012, 08:52 PM

Ian, all the messing with tx must of caused few upsets so defaulted tx & started again so now T/H is ok but still throttle cuts out so has to be something in the castle esc moment you load mid stick she cuts out, thought i had it right this afternoon then suddenly started doing it again.
The only setting i can figure may cause it is esc setup" Setting 2: Current Limiting ive set from (1) to (4)
When you drop throttle down esc resets & will spool up again it almost makes it feel as if its tx

**coolice** · 23-12-2012, 09:04 PM

Hey.

Did you calibrate the throttle to the Castle, in this case lower the throttle ATV values to 60%, power on the ESC with the throttle at full power and increase the tfull power ATV value until the ESC beeps. Then lower the throttle and do the same for bottom stick until the ESC beeps and then arms?

Have you set the ESC to insensitive?

This is on your 250 isn't it and is a 25 amp unit? When the power goes do you still have full control of the servo's, just wondering if it's tripping out due to the amp draw.
.

**tourerjim** · 23-12-2012, 09:22 PM

The servo's all seem ok now so poss me messing with tx, ive set (4) insensitive,
These are the only instructions for throttle calibration

1. Ensure that the Phoenix is connected to the proper channel on your receiver.
2. Turn your transmitter ON and set the throttle stick to mid
throttle.
3. Connect the main power battery to the speed controller.
The speed controller will remain disarmed and will not
operate the motor until it sees zero throttle.
4. When you are ready to fly, move the throttle stick to the
lowest position on your transmitter.

i didn't do the 60% & full throttle as i was gong by the above so should i try yours.?

**coolice** · 23-12-2012, 09:49 PM

Hey.

Setting 4, auto calibrating or fixed end points.. It says not to use the auto calibration with helicopters, so it might be worth going throgh the ESC setup and calibrating your own end points mate.

The problem you're describing sounds like a throttle calibration issue.

If you get stuck I'd have a look for you when I see you next.

Keep me posted.
.

**tourerjim** · 23-12-2012, 10:04 PM

Yeah I read that which is why i done the manual calibration thinking that would do same thing but perhaps not, if you've got the castle link Ian i may as well wait till i see you at the club,

**Steve** · 23-12-2012, 11:32 PM

Please, if you have any doubts at all about your Tx then send it back to MacGregors for a check over.

They won't charge you anything to have a look as far as I remember from when they looked at my DSX9 a while back. They may well charge for any parts replaced, but the costs are minimal really when you consider the possible consequences. I have 5 helis and 4 planes flying off one Tx. If the Tx is faulty, then all 9 aircraft are dangerous. If a Rx is faulty, then only 1 aircraft is dangerous.

**Downdraft** · 24-12-2012, 12:04 AM

hope this isnt a daft question!
You do have the ESC connected to the correct RX channel dont you? I only ask because of the hold issue you were having. Also I presume you have tried the TX on another model and all is fine?

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DSX9 Throttle.???

DSX9 Throttle.???

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