Greetings, I'm at my wits end on a job. I am getting an intermittent high pitch noise on a dual-cabinet KX-TD1232 w/ a TVS100. It sounds like a wireless access point or something of the sort. I've been chasing this problem for weeks and am running out of ideas. I've eliminated the obvious; UPS,feeder cables, equipment adjacent KSU. According to the customer there has not been any changes since the noise has started. Was wondering if possibly the equipment was at fault. We do not have any spare systems to try. Thought maybe someone else had similar experience that would be of some help. I'm willing to try just about anything at this point. I've got rf filters on all ground wires. Anyway, Thanks in advance!!
