kaufmancd

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About kaufmancd

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  1. Bob, I had the exact same problem with one of my CE1000s. On another thread, Lou suggested opening the case and unplugging and replugging the input ribbon cable. That indeed, solved my problem. I had moved the amp rack outdoors, rolling over rough ground. That had caused the connection to work loose. Snapping it together brought the amp back to life. Give it a "look see". CHris
  2. Thanks Lou. I'll give it a try. I haven't opened the case before, so that will be something new. Of note, the volume (input sensitivity) knob on channel 1 is not loose, or scratchy as I rotate the potentiometer. It feels quite normal. It really does appear like the signal isn't even getting to the preamp stage. Almost like an input IC/opamp is fried, or capacitor broken. But it is only on the one side. Perhaps there is a loose PCB trace, or broken wire from the XLR input connector. As I said earlier, I haven't tried the barrier strip input yet and I will do that first before I open the case to look for broken or loose wires. Or even a broken input connector. Could that be it? I'll check those this weekend when I can get back to the amp. Thanks again for the help, and ideas. Chris Great news...it WAS a loose connection on the input board. I unplugged the ribbon cable and replugged it in. BINGO. It works. Thanks again. Sorry, I didn't reply sooner. Life's good. Chris
  3. Thanks Lou. I'll give it a try. I haven't opened the case before, so that will be something new. Of note, the volume (input sensitivity) knob on channel 1 is not loose, or scratchy as I rotate the potentiometer. It feels quite normal. It really does appear like the signal isn't even getting to the preamp stage. Almost like an input IC/opamp is fried, or capacitor broken. But it is only on the one side. Perhaps there is a loose PCB trace, or broken wire from the XLR input connector. As I said earlier, I haven't tried the barrier strip input yet and I will do that first before I open the case to look for broken or loose wires. Or even a broken input connector. Could that be it? I'll check those this weekend when I can get back to the amp. Thanks again for the help, and ideas. Chris
  4. I've used XLR and 1/4 TRS. I didn't use the barrier strip. But, the amp did work on that channel a couple of months ago. The channel simply dropped out one day. And it wasn't being overdriven at the time. I was running background music at an outdoor wedding.
  5. I have 3 CE1000s that I use for monitors. One of them has side one (ch 1) that does not work. I get no input light, nor any fault light indications even when signal is applied (I hooked the channel 2 input into the ch 1, and vice versa to isolate the input cables). No change. Of course, the input sensitivity controls are full open. I did have this amp running for many concerts before this condition. So, it did work at one time. Does it sound like I'm destined to send to the service center?