Sm 58 dropped and cuts out

You would need to look for a used one on eBay or Craigslist.

The wiring diagram can be found in the User Guide for the SM58. It can be downloaded on Shure's website.

The "SM58" is just the cartridge on the top. It would depend on the model of handheld transmitter. The model number is on a sticker in the battery compartment.

It can not be changed.

You damaged the voice coil of the mic. You have to replace the element or buy a new mic.

Try this.... Search google for: shure sm58 wiring diagram
In one of the results you will find diagram and colors in the upper left corner pix. If yours doesn't have those colors, congratulations, you have one of the counterfeit Shure mics that are being sold.

The Shure SM58 is a dynamic microphone instead of the electret one Neumann TLM 103. This means that Shure does not need a phantom power supply voltage, instead of Neumann TLM 103; this one needs 48Volts. Here are the specifications for each one of the microphones: Shure SM 58 - Neumann TLM 103. In case you use a pre-amplifier or an audio console try to locate a switch marked as "Phantom Power" and turn it on. Typically there is no problem supplying a phantom power at the SM58. In case you have no phantom power switch available, either post back the mixer brand / model to check it for you, or post me a question to suggest you one. Details about the usage and the mixer you are already using will help me to clarify the total audio situation.

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direct fixya link: http://www.fixya.com/users/technical114

Call Shure Parts at 800-516-2525.

You can use the WA310 cable to plug the Beta 58 into any Shure bodypack.

The wired capsule will not exchange with a wireless capsule.

The V-Tech mic is actually a clone of the Shure SM-58. There's some discussion about how it is actually made (since V-Tech has no information on their website about their microphone line), but it looks to be made out of aluminum, vs. Shure's Zinc alloy. I believe it will sound the same, it just won't be as rugged as the SM-58.

(I know people who have used an old SM-58 as a hammer to pound stakes for their remote tent into the ground - and it still functioned afterward).