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Pershing 27MHz to 2.4GHz conversion issues

Posted: Wed Jun 03, 2020 3:08 pm
by AndyC
So I have this Pershing (with smoke & sound) with a defunct 27MHz crystal receiver/transmitter.

I've acquired a 2.4GHz MFU (5.3S) and matching transmitter but there seems to be some incompatibilities with the Pershing. The right joystick needs to be moved left/right for forward/reverse and up/down to spin, I guess this is easily sorted by reversing a motor connection?

The gun elevation and turret rotate functions are swapped on the left joystick, I guess a little rewiring to swap the connections to the motors would sort this?

BB fire isn't working. How to fix this?

Smoke, sound and machine gun all work fine.

Thanks for any help!

Re: Pershing 2.MHz to 2.4GHz conversion issues

Posted: Wed Jun 03, 2020 3:24 pm
by Exhibitedbrute
Check gearbox plugs and so on make sure they are the right way round etc. It can sometimes impact that

Re: Pershing 27MHz to 2.4GHz conversion issues

Posted: Wed Jun 03, 2020 3:55 pm
by AndyC
All plugs tight and right way round.

Just noticed that the barrel elevation doesn't work when the gun motor switch is off, also the BB firing motor runs when the left joystick in the up/left position and the fire button is pressed.

Re: Pershing 27MHz to 2.4GHz conversion issues

Posted: Wed Jun 03, 2020 4:34 pm
by AndyC
OK, done a bit of reading up. Seems that the original upper hull connections aren't compatible with newer HL MFUs.

Please can anyone point me to a (simple!) guide to rewiring this? In the upper hull the Pershing has the 8 pin connector plus a 2 pin connector for the rear lights.

Thanks!

Re: Pershing 27MHz to 2.4GHz conversion issues

Posted: Wed Jun 03, 2020 7:55 pm
by Jofaur86

Re: Pershing 27MHz to 2.4GHz conversion issues

Posted: Wed Jun 03, 2020 8:15 pm
by Jofaur86
Hello, look the page 3 , câblage RX18 pin 8 broches + colors wires
http://www.rc-panzershop.fr/ekmps/shops ... 22-1.3.pdf

Re: Pershing 27MHz to 2.4GHz conversion issues

Posted: Wed Jun 03, 2020 9:15 pm
by AndyC
Jofaur86 wrote:Hello, look the page 3 , câblage RX18 pin 8 broches + colors wires
http://www.rc-panzershop.fr/ekmps/shops ... 22-1.3.pdf
Thanks for this, my grasp of French is limited, do I understand that the diagram shown on page 3 is the way the upper hull 8 pin socket is wired originally, and the diagram shown on page 4 is how it should be wired to work with the HL 5.3 MFU?

Re: Pershing 27MHz to 2.4GHz conversion issues

Posted: Thu Jun 04, 2020 6:03 pm
by AndyC
Well I've sorted it out in the end, all working as it should now after a bit of rewiring...