Model Boat Mayhem
Technical, Techniques, Hints, and Tips => The "Black Arts!" ( Electrics & Electronics ) => Topic started by: Gardener on March 08, 2018, 07:05:38 pm
-
How do you know which way round to plug the connectors of the servo and speed controller into the receiver ?
They will go both ways.
I have a Exmitter receiver.
Which way do the 3 brass terminals face on the back of the connector, towards the ariel or away from it ?
-
place where you plug the connectors in on your right of the receiver and the White lead on the plug goes towards the left
Dave
-
:-))
-
No white coloured lead !
-
Negative black furthest from the aerial
Can be brown too sometimes
(https://i.ebayimg.com/images/g/weQAAOSwkrFajYvG/s-l1600.jpg)
(https://ae01.alicdn.com/kf/HTB1FFZhKXXXXXXSXFXXq6xXFXXXA/10pcs-lot-JR-Cale-connector-RC-100mm-10cm-22AWG-male-to-male-servos-extension-cables-wiring.jpg)
-
:-))
-
No white coloured lead !
Can ALSO be orange
Dave
-
What Dave said also works with the alternative lead.
I think without exception the negative goes to the edge of the casing or with side entry plugs to the bottom or back. Futaba make it idiot proof with a locating tab which often has to be cut off with non futaba receivers.
EDIT and no I wasn't calling you an idiot {-)
-
:-))
-
When designers design radio PCBs, they usually start by putting the ground line as near to the edge as possible. The pins carrying the control signals need to be spread all over the place, so they go furthest inboard. So, since servo leads usually have their ground (-ve) line either black or brown, that is the one to have nearest the outside edge of the case. If it is a receiver that has its pins poking straight out of the end of the case, they usually have a right angle bend, so if you spot the board, ground is nearest the board.
Not just true for Exmitter, but nowadays almost universally true. Even Sanwa saw the sense it that and gave up having a unique arrangement.
-
:-))