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TURNIGY TGY 9X PPM too low

Posted by Marius on July 16, 2016 at 3:40pm

Hi,

I bought a second turnigy remote and the PPM ranges seems to be shifted

to low. For example the PPM range throttle is from 900 - 1612 in respect to the other

1150 - 1850

. Yaw and pitch default stick position are shifted to lower values as seen.

I already did a factory reset and no improvement. Any ideas ? thank you.

3691309002?profile=original

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Replies

  • Marius July 18, 2016 at 4:52pm

    Resolved.

    After looking at http://www.rcgroups.com/forums/showpost.php?p=16084135&postcoun... @ Temp/9X_Schematic.pdf

    After I checked all the power voltages [page 5], I end up  at the 1th page, on [2402 Mhz] module which is the back clip-on pairing radio module. The the 5V power regulator [U9] LM78M05 was busted, giving out 2.8v. I replace it with a LM 7805 and The PWM is in it's range from 1063 to 1883. All PWM's (yaw, elev and so on) came back to normal.

    On initial post the Pitch graph shows the throttle, I did not program the remote yet.

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