David A. Parker wrote on Sat, 26 February 2011 13:02 |
had a problem last night, 8 ohm monitor rated 225 watts rms, QSC PLX 2402 amp. One monitor on one side of amp, other side of amp open. Drummer's wedge. Drummer wanted kick in his wedge, so I obliged. Drummer was happy with it, but amp would red light and then shut down, cycle, come back on, everything's fine for a while, then it would redlight and shut down again, then back on. Normally I would think it was low voltage, but the other amps were on the same circuit, and none of them had a problem. I know when a voice coil heats up, it changes the impedence, so could this have in some way triggered the shutdowns? |
Chris Hindle wrote on Sun, 27 February 2011 08:29 |
It sounds to me that the dust bunnies have taken over the heat sink... Pull cover, vacuum amp,clean fan, rinse, repeat... |
Dean Nishizaki wrote on Sun, 27 February 2011 15:40 |
I had the same problem w/ a 3002 . Sent it in to QSC and they changed the Ribbon . Got it back and it did the same thing again on the 1st Gig . Sent it back and they couldn't find anything wrong w/ it . The Service Guy told me that he will change the Module as all the electronics go thru it . Said the amp will be like new . Not sure if you have a QSC repair shop in your area , but you can get a return form online . |
David A. Parker wrote on Sun, 27 February 2011 09:33 | ||
sounds like a plan! I'm sure I need to do all of them. |