hey ya'll,
anyone on here have experience repairing electrovoice 667a's?
I just got one on ebay, and like an idiot I unscrewed the two parts of the chassis without first loosening the nut on the back, and as a result put a bunch of strain on the transformer wires contained in there. Two were disconnected from their solder joints. One of them is the heavy red wire that seems to have a clear point of connection on the immediate pcb it meets. That seems relatively simple to get reconnected. My issue is there is a loose, smaller diameter green cable that seems to be part of a transformer configuration (there are 5-6 other colors of similar diameter connected to various terminals). It's supposed to meet one of many vacant terminals on the bottom of the smaller side of the mic chassis that contains the custom EQ pin configuration, but I'm not sure which one is correct. Any tricks for sussing that out? Would it be best to plug the mic in and test what terminal is correct by putting it on different ones and seeing if the mic works? I suppose that would assume everything else is copacetic. But I do know the mic was working before I did the damage.
Secondary question for anyone with specific 667a experience: My instinct was to remove all of the capsule/transformer from the bulky mic housing, so I could potentially troubleshoot anything in there, and make sure to get good access to the pcbs. Is there anything to keep in mind as I attempt this?
Thanks, and sorry for any newbie questions. I have done many DIY building projects and wired my studio but have not done a lot of mic repair.
R
anyone on here have experience repairing electrovoice 667a's?
I just got one on ebay, and like an idiot I unscrewed the two parts of the chassis without first loosening the nut on the back, and as a result put a bunch of strain on the transformer wires contained in there. Two were disconnected from their solder joints. One of them is the heavy red wire that seems to have a clear point of connection on the immediate pcb it meets. That seems relatively simple to get reconnected. My issue is there is a loose, smaller diameter green cable that seems to be part of a transformer configuration (there are 5-6 other colors of similar diameter connected to various terminals). It's supposed to meet one of many vacant terminals on the bottom of the smaller side of the mic chassis that contains the custom EQ pin configuration, but I'm not sure which one is correct. Any tricks for sussing that out? Would it be best to plug the mic in and test what terminal is correct by putting it on different ones and seeing if the mic works? I suppose that would assume everything else is copacetic. But I do know the mic was working before I did the damage.
Secondary question for anyone with specific 667a experience: My instinct was to remove all of the capsule/transformer from the bulky mic housing, so I could potentially troubleshoot anything in there, and make sure to get good access to the pcbs. Is there anything to keep in mind as I attempt this?
Thanks, and sorry for any newbie questions. I have done many DIY building projects and wired my studio but have not done a lot of mic repair.
R