Re: Yet Another Hanns-G HG281D Thread...



Hmmm. So what would your recommendation be? Should I replace the other caps on the main board near the voltage regulators (aside from the large filter caps), or you think that there are problems with the power supply board, and I need to replace caps there, or replace the board entirely?...

Re: Yet Another Hanns-G HG281D Thread...



Hi Budm,

Thanks as always for your help. I'm afraid I'm a little confused by your terminology though:


Main board = the board where the inputs are?

And the two 100uf 16v for those regulators - Are these the two you mentioned in the post above here? [url]http://s807.beta.photobucket.com/user/budm/media/Hannspree/HANNSG%20HG281D/DSC00085.jpg.html[/url]
If so I replaced those two first, and that's what got me to even be able to keep the monitor on . It was a great...

Re: Yet Another Hanns-G HG281D Thread...



Sorry its been so long, but I didn't have time to mess with this until finals were over.

For the left chip, from left to right, I got 0, 1.75, and 3.24 (all negative). For the right chip, again from left to right, I got 0, 3.24, and 4.85 (also negative).

The static seems to show up more when the screen shows whites, and it's really intense with certain kinds of greys. Also I have it taken apart to measure the voltage and theres a pretty audible buzzine noise coming from either the power or controller...

Re: Yet Another Hanns-G HG281D Thread...

Hi budm,

Please excuse my ignorance and thanks so much for you help, but what regulators? Do that mean the two capacitors? And how would I check the voltage exactly? I have a multimeter, but not sure across what two points I would be checking. From the + to - parts of the capacitor? When it's on or off? Help much appreciated. Thanks!

Re: Yet Another Hanns-G HG281D Thread...

I don't know if the caps are low esr but they're supposed to be the right caps for this board. I just ordered them within a set off of ebay. The 16v 100uF ones say 1NEB if that means anything, but it replaced the crappy cap-x ones....

Re: Yet Another Hanns-G HG281D Thread...

Well I replaced the two caps you indicated, and lo and behold the display started working again.

I started to notice a lot of small flickering on blacks and whites, and then after about an hour of use, the screen went completely white again. Sigh*

So I guess I probably need to recap the whole main board (I already have the caps for that), or would I probably also need to recap the power supply?

Re: Yet Another Hanns-G HG281D Thread...



Thanks for the info! Which two caps are you referring to specifically- the pictures above had a few C80 and C83?
If those caps were the bads one, should I expect to see a relief of symptoms if I heat them up with a blowdryer or the likes?...

Sorry to post another thread on this cursed monitor but yesterday my display started doing something wacky that I haven't seen anywhere else in this forum.

My monitor had been working fine, when in the middle of watching a video the screen started to turn white, from left to right, almost like it was bleaching out. The display then stayed completely white- about as bright as it could be. I turned it off, turned it back on, same thing.

The display turns on fine, blue light, then after a few seconds orange, and stays on at orange without shutting off, making think...