Question about Shure T4A DIVERSITY AC RECEIVER (CV) T4ACV Microphone

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Shorted out AC on Shure T4A receiver, need schematics

Power supply went under water in a flood. I think receiver shorted out. Are there any repair manuals or shematics available?

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  • timothy schupp May 11, 2010

    fist thing DO NOT PLUG IT IN,you might get lucky if you don not plug this mic in .if you let it dry totally even unscrew it and open it up to let it dry this might take a few day's to a few week's but with my own stuff i have gotten lucky by letting thing fully dry out then open and just look really close at the liltal pc board in side to see if you see any black mark's then just clean with a tooth brush let dry again see if this work's if not get back to me and i have more idea's that do work but you need a liltel no how on using a sodeing iron.



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You can get the repair manuals/schematics by emailing Shure at

Posted on May 11, 2010


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Shorted out AC on Shure T4A receiver, need schematics

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Pyramid 14G power supply

It very unlikely the voltage went down. I think you should re measure what the voltage should be yes it 13 volt is after the bridge you wil get this with dual 6.5 volt ac from the transformer, they don't change voltage unless you have a short at the output, and if you did you will blow the transformer, is your reading from 2 wires or is it three wires, output, the center to the end should be 6.5 and end to end maybe 13.8.
I would need to see the schematic to know what voltage you should be getting.
I wouldn't look on a bat transformer but ether, bad bridge or wireing.

I hope this help's

What About Bob

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