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Junior Varsity
A wee electric shock...
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<blockquote data-quote="John B. Miller" data-source="post: 3203" data-attributes="member: 1031"><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">Today I played and sang at an elementary school where the school kids set up the SOS system that the school owns, and I operated the system (from the stage, mixer beside my piano). After the event, I began unpatching things, and when I reached around behind the mixer to pull a TRS plug out of an AUX send, I got an electric shock. It wasn’t the worst shock I’ve ever received, but certainly enough to make me want to let go of the connector.</span></span></span></p><p></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">It happened when I had the TRS plug part-way out of the jack. The other end of the cable wasn’t connected to anything. The mixer was still powered up, with universal 48v switch on, and connected to a pair of powered speakers. The school is about 10 years old, and the sound system is around 6 months old.</span></span></span></p><p></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">Now I’m no electrical genius, but I don’t think this should happen! This is the mixer:</span></span></span></p><p></p><p><a href="http://www.alesis.com/multimix12r" target="_blank"><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #800080">http://www.alesis.com/multimix12r</span></span></span></a></p><p></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">Unfortunately, I didn’t have my circuit tester or multimeter with me, and I was in a hurry to leave, so I didn’t test anything or try to troubleshoot it. I will likely go back to the school when I have some free time and try to re-create it the scenario. </span></span></span></p><p></p><p><span style="font-family: 'Times New Roman'"><span style="font-size: 12px"><span style="color: #000000">Any thoughts on what might be up here?</span></span></span></p></blockquote><p></p>
[QUOTE="John B. Miller, post: 3203, member: 1031"] [FONT=Times New Roman][SIZE=3][COLOR=#000000]Today I played and sang at an elementary school where the school kids set up the SOS system that the school owns, and I operated the system (from the stage, mixer beside my piano). After the event, I began unpatching things, and when I reached around behind the mixer to pull a TRS plug out of an AUX send, I got an electric shock. It wasn’t the worst shock I’ve ever received, but certainly enough to make me want to let go of the connector.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]It happened when I had the TRS plug part-way out of the jack. The other end of the cable wasn’t connected to anything. The mixer was still powered up, with universal 48v switch on, and connected to a pair of powered speakers. The school is about 10 years old, and the sound system is around 6 months old.[/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]Now I’m no electrical genius, but I don’t think this should happen! This is the mixer:[/COLOR][/SIZE][/FONT] [URL="http://www.alesis.com/multimix12r"][FONT=Times New Roman][SIZE=3][COLOR=#800080]http://www.alesis.com/multimix12r[/COLOR][/SIZE][/FONT][/URL] [FONT=Times New Roman][SIZE=3][COLOR=#000000]Unfortunately, I didn’t have my circuit tester or multimeter with me, and I was in a hurry to leave, so I didn’t test anything or try to troubleshoot it. I will likely go back to the school when I have some free time and try to re-create it the scenario. [/COLOR][/SIZE][/FONT] [FONT=Times New Roman][SIZE=3][COLOR=#000000]Any thoughts on what might be up here?[/COLOR][/SIZE][/FONT] [/QUOTE]
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A wee electric shock...
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