Vampire sr1 glitch with steering

[Clarkie]

Hope someone can shed some light on this

I have a

sanwa 451 receiver and Gemini x
Vampire sr1+ speedo
Vampire 7.5 motor
Spektrum 6040 servo

The problem that I'm experiencing is that when you move the steering on the transmitter the throttle kicks in and out a bit.

I have tried

another receiver - fault remains the same
Another servo - fault remains the same
A orion r10 speedo - fault disappears
Vampire speedo and Servo disconnected - fault does not appear

Not sure why when the servo is connected it affects the vampire, but for some reason it does, got me puzzled

It's been fine for the last 8 months too....

[jon kedge]

I,ve had problems like this on other esc,s.fitted a capacitor into the spare receiver channel,not sure what capacitor it is but dig about and you get them of eBay cheaply,connect the + & _ the correct way or pop the capacitor,be careful,it stops the voltage dropping below 6 volts.hope this helps. Jon

[cutting42]

That servo is a rebadged Savox and draws a lot of current. Lots of folks have seen glitching with Savox and the advice re the cap is sound. Try searching for a glitchbuster.

[Darren Boyle]

First thing I thought was either power cap or servo drawing too much current, both of which have been suggested above. Try those and see if they fix it....

[shark]

A orion r10 speedo - fault disappears

Sort of answers its self don,t you think.

[Clarkie]

Thanks for the input guys,

Does the capacitor on the vr1 not do the same job as the glitch buster?

I'll check the existing capacitor tomorrow, can only assume it's failed as it has been working fine in the past