Hi guys,

The system used for my flat is a VIDEX 800 with 5 phones, one to each flat. Today we are all getting a high pitch wail on the phones, very like feedback. Any ideas on what this is and how to remedy?

Hi guys,

The system used for my flat is a VIDEX 800 with 5 phones, one to each flat. Today we are all getting a high pitch wail on the phones, very like feedback. Any ideas on what this is and how to remedy?

Volume level too high in the voice unit outside.

Two potentiometers inside to adjust levels. (Speaking/Listening)

Thats the first thing to check.

Edited June 21, 201114 yr by sixwheeledbeast

Volume level too high in the voice unit outside.

Two potentiometers inside to adjust levels. (Speaking/Listening)

Thats the first thing to check.

Thanks Any idea where they are located inside the unit? Its been working fine up until today so assuming it's not that, what could it be?

Any idea where they are located inside the unit?

Blatantly obvious on the PCB inside.

One has a picture of a loudspeaker (listening), the other a symbol for a microphone (speaking).

Make sure only one headset is off the hook before starting.

Well bizarrely it has self-remedied? That said I did change both fuses on the system transformer as one looked dodgy. Thank you very much for taking the time out to reply