AR7200bx gyro gain

[tworidersbolt]

I'm hoping someone can help here? I have a Trex 700e fbl and the ar7200bx. I can hover the heli and the tail holds fine. However the tail doesn't snap when I move the tail or after a pirouette. I thought it might be the gain setting, but altering the gain in mx dx8 makes no difference at all even up as high as 100%. I pretty sure I not done something right. I have been through the gyro settings again and have checked the servo freq and pulse rate and they're fine. The servo is a MKS ds760.

[Rich23]

Hi

Just checking but have you set the gain adjustment to the Tx in the Parameter menu?

Rich

[waveydavey]

Sounds like the gain channel is wrong in the Tx, what channel are you using on the Rx to the BeastX

[tworidersbolt]

The gear channel, which I have set in the gyro menu. The switch is F mode. In the parameter menu the switch select in inh, tried both settings in the switch select set as gear but when I use the gyro menu and put the channel to gear the switch select reverts to inh

[waveydavey]

If you switch to the monitor and adjust the gear channel does it change in the monitor

[tworidersbolt]

yes, if i go to the monitor and flick my f mode switch it does move. to what I have set. Can't understand why when I alter the gain in the radio - gyro settings that I don't get a fast tail wag, the kind that you get with high gyro gain

[waveydavey]

Me confused, defo got the right colour core on the 3 plug lead the right way round, IE in the right slot on the beastx. You could try putting the gear output plug in the tail servo slot and adjust the gear channel see if the servo responds.

[dillwhacker]

If you adjust the gyro gain the status should be purple or blue and one of the menu LEDs A to N should indicate the gain, HH or RM. If nothing changes as you alter TX gyro gain, either the TX channel or RX channel is wrong.

[tworidersbolt]

That just it, as i flick the f mode switch from n to 1 and 2 the light moves indicating the different amounts of gain, might check the position of my ball link to see if i measured it right

[dillwhacker]

Set gain to zero, wiggle the tail & confirm tail pitch doesn't change. Then check low gain HH and RM, then higher gain RM & HH. Once convinced servo is behaving - maybe a mechanical limit, or something sticking?

[tworidersbolt]

mmmm, tend to think its mechanical now. I have moved the servo ball out a bit more as it wasn't quite at 14mm then reset the travel on the ar7200. Will give it a go this evening, see what happens. Failing that will try a different servo and see if I get the same result.