Can just a speaker in intercom panel be replaced?

[ahlondon]

Outdoor doorbell-intercom unit lets the residents hear outside from their handset in the flat, but the visitor cannot hear any of them. Handset issues have been ruled out. The speaker was making a loud cracking sound prior to failing which I read is a sign of a speaker that's about to die.

Can I swap it to a similar sized speaker? I can perhaps get it out of an old radio or desktop speaker and solder it?

 

[sparkymarka]

Yes but it will need to be the same size / ohms / and power rating …also not be a paper cone speaker as they don’t stand up to the weather
Post picture of the intercom unit

 

[ahlondon]

Yes but it will need to be the same size / ohms / and power rating …also not be a paper cone speaker as they don’t stand up to the weather
Post picture of the intercom unit

Connections could be corroded?

 

[sparkymarka]

You will have to remove the pcb with a bit of luck the info will be on the the speaker I would normally de solder one of the leads on the speaker and check it with a multimeter set to ohms

 

[sparkymarka]

Also measure the speaker across probably a 50/60mm speaker

 

[ahlondon]

You will have to remove the pcb with a bit of luck the info will be on the the speaker I would normally de solder one of the leads on the speaker and check it with a multimeter set to ohms

Hopefully it comes away easily. It has 12v feeding it; do the ohms and watts matter a lot? Would a 12v signal in this type unit blow the speaker or perhaps not produce enough sound? Is any movement from the ohms/w okay? Was thinking of getting:

 

[sparkymarka]

Yes it does ….post picture of the speaker it’s normally printed on the back …example

 

[ahlondon]

Yes it does ….post picture of the speaker it’s normally printed on the back …example

Sadly no markings visible

 

[sparkymarka]

Post me a picture of one of the handsets…

 

[ahlondon]

Post me a picture of one of the handsets…

It's this one:

https://www.intercomsrus.com/handset_documentation/Kallglobe%20TN-5HK%20Intercom%20Handset%20Data%20Sheet.pdf