M1225 crackling when off issue

[jrm5265]

Hey guys got an M1225 that seems to work ok but when its off you can hear an intermittent hiss/crackling noise coming from the speaker. It is wired hot all the time so theres pwr going to it in this scenario but radio is turned off

Thanks
Joe
eastmetrocomm@aol.com

[Tron]

Looks like the audio module is connected at unswitched A+. I've had a few over time that the audio module became leaky, and you would get crackling in the speaker as you describe. A little troubleshooting with a good scope would be in order.

Tron

[jrm5265]

ok I am not a tech just an installer type, is this something that an MSS could fix or is an M1225 doing that going to be declared unrepairable ! LIke they do a lot of stuff....................since eveyrthing seems to be disposable these days

also I really need a couple of volume knobs for that Sm50/M1225 Sm120 type radio do you have any ?

[Bat2way]

For what an MSS will charge you ($125.00+), you might as well sell/trade with problem noted to a tech buyer and get a replacement.

[Tron]

Perhaps one of these fine gentlemen on the board here who have service shops could help you out.

Tron