Microphone won't pick up any sound

Hello,

Well to start off the SM-57 is a dynamic mic, meaning that it does not require phantom power to work.

With that said, I would recommend opening up the mic by screwing off the bottom part to reveal where most of the electronics are. Check to see if there are any loose connections. If you don't find any put the mic back together, and try using it with a different XLR. I have found that XLRs often just stop working after a while if they are not wrapped properly, or not cared for.

I had this problem too. It was actually because the xlr plug was too far in the body of the mic, therefore not making a good connection. I just fixed it by moving the xlr plug to the correct spot. Be careful that the screw is reverse threaded (at least on the pga-57)

Hi,

that depends on how skilled you are. You can open the mic to take a look inside, maybe something easy as a loose cable or a capacitor is dried out/popped open. If you can repair it on your own, do it. Otherwise let somebody else do it for you.

I had the same thing on a Motorola C 290 mic had a faint pickup ..

there is a small slot on the bottom right of the word Sprint. Concentrate a vacuum cleaner with the small narrow attachment on this spot. it will suck any dirt or fuzz out. works fine....Sprint said it couldn't be fixed. I guess they wanted me to get a new phone.

Hal

Since a microphone is just a coil of wire you can check its continuity by placing an ohm meter across the terminals, no reading means open circuit. If the joints are good then the copper wire is broken somewhere!

on other thing I have seen if the wiring is good will need to make sure the conduits in transformer (600-50,000 ohms I think) and mic diaphragm. sometimes iron filings collect on diaphragm and keep it from moving so no sound.

Where do I find a replacement microphone the the wire has disconnected.