Hi.
I have this handy rack mixer Behringer RX1602, and it worked fine some years. It is turned ON all the time, 24/7, I use it for monitoring in studio.
Recently it started making weird noises. As if it would overheat or something. If it turn it off, and wait, then some time all is fine. And after some 10-15 minutes there is few seconds of slowly increasing buzz (50Hz spikes), then big spike (positive), then 1second of silence, then one big spike (negative). After that all is fine again few seconds, then again buzz comes in, spike, slience, spike,..... It is getting worse every day.
I recorded this to another computer, from headphone out, but same thing is going on on main outs.
Can you please lok at it and hear it, and maybe you can suggest what is going on, and where to start troubleshooting. Maybe PS regulators overheating? Or PS capacitors?
Here are some screen grabs in Audition, at different zoom levels.
http://84.255.203.119/failure1/f1.JPG
http://84.255.203.119/failure1/f2.JPG
http://84.255.203.119/failure1/f3.JPG
http://84.255.203.119/failure1/f4.JPG
And here is how it sounds like ( :!: WARNING!!!! - LOWER YOUR VOLUME - DANGER!!! :wink: ) - first is silence, then big FS pulse up and down.
First spike cycle is without music, just silence so you can hear buzz. Second spike cycle is with quiet music, so you can hear how it cuts off inputs.
mp3: http://84.255.203.119/failure1/failure_01.mp3
same file in original wave: http://84.255.203.119/failure1/failure_01.wav
thnx
gnd
I have this handy rack mixer Behringer RX1602, and it worked fine some years. It is turned ON all the time, 24/7, I use it for monitoring in studio.
Recently it started making weird noises. As if it would overheat or something. If it turn it off, and wait, then some time all is fine. And after some 10-15 minutes there is few seconds of slowly increasing buzz (50Hz spikes), then big spike (positive), then 1second of silence, then one big spike (negative). After that all is fine again few seconds, then again buzz comes in, spike, slience, spike,..... It is getting worse every day.
I recorded this to another computer, from headphone out, but same thing is going on on main outs.
Can you please lok at it and hear it, and maybe you can suggest what is going on, and where to start troubleshooting. Maybe PS regulators overheating? Or PS capacitors?
Here are some screen grabs in Audition, at different zoom levels.
http://84.255.203.119/failure1/f1.JPG
http://84.255.203.119/failure1/f2.JPG
http://84.255.203.119/failure1/f3.JPG
http://84.255.203.119/failure1/f4.JPG
And here is how it sounds like ( :!: WARNING!!!! - LOWER YOUR VOLUME - DANGER!!! :wink: ) - first is silence, then big FS pulse up and down.
First spike cycle is without music, just silence so you can hear buzz. Second spike cycle is with quiet music, so you can hear how it cuts off inputs.
mp3: http://84.255.203.119/failure1/failure_01.mp3
same file in original wave: http://84.255.203.119/failure1/failure_01.wav
thnx
gnd