Replacing Farfisa 724N handset (doorphone)

[Helaal92]

Hi everybody, hope someone can help please.
My old Farfisa handset 724N has given up and I need to replace it.
It suddenly stopped delivering sound from the door to inside the flat, the technician said the is a short and i must buy a new one.

I bought this model PT510EW, the store told me it will fit as a replacement for the 724N.

When i tried to replace it i found that all the connections and terminals are the same, except one terminal is not the same in the 2 handsets.

the old one" 724N" has an unused terminal 9 there is a screw but without any wires and a there is a wire connected in terminal 6.

The new one "PT510EW" has a screw in terminal 9
and terminal 6 is empty no screw
thethe man shows that i should put a wire in terminal 9.

i guessed that the 6 in the old one maybe the 9 in the new one and i went ahead making the connections

Every thing is working good except the bell Can anyone help?

The new PT510EW manual


The old "724N" Manual

this is the old "724N" before uninstalling it


On the right side is the new "connected"
On the left side is the old "disconnected"


FYI: The system is a single entry door lock and multiple flats with handsets.

 

[Helaal92]

does PT510EW works as a replacement for 724N ?
if yes, why the bell not working ?

 

[JohnD]

i don't know, but i think you should start by addressing your question to the manufacturer or importer of the device.

The sales assistant in the store might or might not be technically trained, and might or might not be correct.

 

[sparkymarka]

Think you need a 510w not a 510ew ( e being electronic call )

 

[Helaal92]

View attachment 162976 Think you need a 510w not a 510ew ( e being electronic call )

thanks but what do ]ou mean by electronic call ?

 

[Helaal92]

View attachment 162976 Think you need a 510w not a 510ew ( e being electronic call )

could you please compare the 2 handset picturei feel that ilthe 510ew has no bell inside it, am i right ?

 

[sparkymarka]

Yes you need one with a buzzer , electronic call will use the handset speaker to generate the sound ..
Not all systems allow electronic call