Hanns-G HD281D emits a pop -- a noise when changing resolution

[TRS80]

Howdy....

Searched through the archives, but did not find a problem like this. My HG281D is now producing a noticeable "pop" when when changing resolutions. I first noticed this sound when using a KVM to switch between computers connected to the monitor. The two computers were running at different resolutions and toggling between them eventually produced this popping noise.

Later, I removed the KVM and attached the monitor to one computer. It still pops each time the computer boots and screen resolution switches from boot resolution (1280-960?) to 1920x1200. Does this popping sound indicate that I have a cap problem? Could it be the inverter? What else could it be? The monitor works great and has no other problems, but I am concerned this popping sound could be a harbinger of things to come. Any thoughts or experience with such a problem would be appreciated. Thanks!

[Scenic]

Re: Hanns-G HD281D emits a pop -- a noise when changing resolution

According to the specs I found on Newegg, it does have built-in speakers.
Just a hint as to where it might be coming from..

[TRS80]

Re: Hanns-G HD281D emits a pop -- a noise when changing resolution

Thank you for the suggestion. I have never had audio cables attached to the monitor and I have no idea where the internal speakers are located, but I will check this out. I will first turn down/off the volume and see what happens. Thanks for the suggestion!

10 minutes later....

Turned volume down to 0 and muted the speakers. No popping sound on reboot. I hope this resolves the problem!

[Scenic]

Re: Hanns-G HD281D emits a pop -- a noise when changing resolution

Yeah I ran into the same problem. Tried to find a pic on google image search about the speakers or the back of the monitor to see where they might be hidden.. no luck.

They're probably matchbox-sized at best.

If you don't have any warranty left, you could just open it up and disconnect them from the mainboard. Crude but effective. And while you're in there, you could also check the caps. Depending on what they used in there and how old it is, they might be on their way out already despite the monitor working fine..

[TRS80]

Re: Hanns-G HD281D emits a pop -- a noise when changing resolution

Yes, I want to check the caps, even though it is presently working great. When I have some spare time, I will open it up and examine it. Noise from the speakers never entered my mind, but turning off the volume seems to have solved the problem! Thanks again.