GBRf Class 50 lighting issue?

[XChris]

Hello all,

 

so I’ve owned my GBRF 50 pairing for a while, I had them running on DC and I think I remember them running fine when tested. However I’ve come to fit Loksound V4’s into them and I’ve had no issues with 50049, however the lights on 50007/014 only seem to work in one direction regardless of actual running direction. When I turn the lights on (F0) they turn off while running in one direction but not the other. I have swapped the chips over as to make sure it’s not the V4’s and still the issue was on 50007/014 and not on 50049.
 

Does anyone know why this is happening or how to fix it. Or is it a Hornby Job. Any wiring diagrams or fixes would be appreciated.

 

Thanks in Advance!

 

Chris