Came BX-74/78

[SamA]

Good morning all
My Came BX-74 gate is giving me problems after many years of good service.
The motor suddenlly stopped responding to the remote, all the remotes I have so not a remote problem.
The PCB LED is constantly flashing, I have by-passed the photocells, bridged 2&C1, still the same.
I haev checked all connections and contacts that I can see and so I am looking for some guidance.
Is there anywear I can actuate operation directly on the PCB, I have been working with the covers off but with the lower access door locked.
After looking the wiring over I gather the photocells, 4, are powered from terminals 10 & 11 then continuity returned between 2 & C1, the reason I bridged 2 & C1.
I would appreciate any help.
Thanks
Chris

Good Morning Chris,

Sometimes the Receivers do fail, so by shorting between terminals 1 and 2. This should give the gate an open command. If the gate doesnt move, its either a block command or constant short on an acccessory terminal preventing it to open. I would recommend taking the board back to basics and either linking out if needed or removing all the accessories. Then if the gate operates from 1 and 2. Re-instate all the accessories one by one. Failing that, it may be a capacitor issue, which will need to be replaced and wired into terminals U and V.

Sam.