Re: Noisy component in the Dell U2410



This turned out to be approximately the case.

Inside the panel is very simple. A thin plastic bracket along the side of the back holds in place a series of rubber sockets. The back side of each socket takes a prong from the inverter board and the front side takes a CCFL lead. I guess the main source of the noise is the bracket transferring vibration to the aluminum back.

I doesn't look like there is room for any vibration damping material. Not sure what I'm going to try....

Re: Noisy component in the Dell U2410



I understand that is sometimes the case. Here, I had carefully checked for sound and vibration from the transformers on the inverter board. They emit only a faint hiss and I can't detect any vibration....

Re: Noisy component in the Dell U2410

Silence...

Could somebody at least describe what is typically found inside that part of the panel unit?

Is there a service manual available for the U2410?

Dell U2410 monitors (not all?) hum loudly when the brightness is reduced below about 78%. Dell claims this is not a defect, but the nearly identical U2711 does not have this problem.

I have a Dell U2410 rev. A04 with the LG panel module LM240WU4. When I opened the monitor, I found there to be three sources of sound. The main power-supply board and the inverter board both emit a faint hiss that I could not hear when the monitor was assembled. The loud buzzing appears to be within the LG panel, on the right side, just where the middle CCFL tube terminates.

Getting into...