First of all - not sure if this is the right Forum, but I'll give it a shot.
I've recently purchased an old IEM-system Shure PSM600. It's outdated, but it fits my needs.
However - when I plugged it all in. I noticed a low frequency humming, which was really annoying and dominant in the earpieces. So I started fault finding and couldn't work it out on the mixer or cables. Everythin is good. But then i touched the casing of the PSM600 transmitter (the P6T) and I could hear in my InEars, that I was touching it. Meaning - It was like there was a microphone inside the casing.
So I'm not super strong on circuit boards, but I'm guesing there is a short somewhere or a bad component. No physical abnormalies detected. I searched different forums for similar problems - nothing found. I only found some spanish or whatever speaking guy, who replaced a Talema 70054K unit on the curcuit, but thats all.
What are your thoughts? Can I test the board with a multimeter? how?
cheers
I've recently purchased an old IEM-system Shure PSM600. It's outdated, but it fits my needs.
However - when I plugged it all in. I noticed a low frequency humming, which was really annoying and dominant in the earpieces. So I started fault finding and couldn't work it out on the mixer or cables. Everythin is good. But then i touched the casing of the PSM600 transmitter (the P6T) and I could hear in my InEars, that I was touching it. Meaning - It was like there was a microphone inside the casing.
So I'm not super strong on circuit boards, but I'm guesing there is a short somewhere or a bad component. No physical abnormalies detected. I searched different forums for similar problems - nothing found. I only found some spanish or whatever speaking guy, who replaced a Talema 70054K unit on the curcuit, but thats all.
What are your thoughts? Can I test the board with a multimeter? how?
cheers