900 Constant Tone Problem Across All Modes

[mcole]

Hello group!

I turn on 900 out of the box and hear a constant midtone in all modes. It seems to work i.e. I hear chirps etc, but always there's a constant tone on.

 

I tried factory reset. No help. 

It's as if someone switched on a buzzer and the tone is just constant and on. I tried to post a video but it was too big.

 

Ideas?

 

 

 

[JCR]

Through both the speaker & headphone too?

[Jeff McClendon]

Sounds like the threshold tone is ON in all modes or you have a very strong EMI source. 

[Sinclair]

Same thought as Jeff - Sounds like threshold tone is activated. Never had EMI producing a constant clear tone.

What happens, if you sweep the coil over iron - does the tone disappear?

[mcole]

WINING!

ok works! Threshold was at 25. Minus down to zero and magic!

Also re read the instructions to understand this.

 

Thank you so much! Was a bit of drama there for a minute!  I hope this helps someone else in the future seems like could be a common goofup.