07-04-2016, 09:33 AM
The PL259 socket has been replaced by four 4mm sockets. The red sockets are for a balanced aerial feeder and the two black sockets are earth terminals.
The middle socket is for signal earth and the lower is for the cabinet only.
The three fixing screws are 4BA nylon for added safety, can't use metal screws for safety reasons.
Although the aerial sockets are isolated from the chassis because the input coils are not connected to the chassis, as an extra safety precaution two 0.01mfd capacitors are inserted in series with input connectors.
It's essential that the signal earth has a mains isolation capacitor.
Geordie McBoyne.
The middle socket is for signal earth and the lower is for the cabinet only.
The three fixing screws are 4BA nylon for added safety, can't use metal screws for safety reasons.
Although the aerial sockets are isolated from the chassis because the input coils are not connected to the chassis, as an extra safety precaution two 0.01mfd capacitors are inserted in series with input connectors.
It's essential that the signal earth has a mains isolation capacitor.
Geordie McBoyne.
