Hmm. I suppose recapping is a logical next step. There are also four adjustable inductors and a single trimpot inside the display assembly.
I haven't been able to find a single clue about what they do. On Wednesday, July 20, 2016, Ian Finder <[email protected]> wrote: > No, I'm not convinced the EL repro isn't a driver electronics issue. > > I'm just a little confused about why the issue congregates at the edges of > the displays. Any ideas why that might be? > > I may try swapping the panels around this evening if I am feeling brave. > > On Wednesday, July 20, 2016, Brent Hilpert <[email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: > >> On 2016-Jul-20, at 12:52 PM, Ian Finder wrote: >> >> > I have a few GRiD compass systems and some are suffering from massively >> > decreased contrast on the edges of the displays: >> > >> > [See the system on the left] >> > https://www.instagram.com/p/BIGGzUzgat-/?taken-by=tr1nitr0n >> > >> > [Or this one:] >> > >> http://www.ripstick.com/USCM/images/Grid_Compass_1101_Laptop_in_Box_002.jpg >> > >> > Meanwhile, other EL systems I have- like my HP integral PC- haven't >> > succumbed to this. >> > >> > I have seen similar issues on amLCD displays in my Tadpole, Toshiba and >> > other machines, so this is something we all may have to confront. >> > >> > ------- >> > >> > I was wondering if the folks here had theories? >> > >> > I'm thinking moisture (or air) might be leaking in from the edges of the >> > glass panes, perhaps from a compromised seal- sorry for the silly >> picture >> > but you can see the composition of the display here: >> > >> > https://www.instagram.com/p/6BXaLBtSzd/?taken-by=tr1nitr0n >> > >> > Does anyone know how one might prevent this from progressing- storage >> tips? >> > >> > Could it be reversed? >> > >> > Better yet, does anyone have ideas on how to rapidly dehydrate the >> display? >> > Perhaps there is even a way to re-seal them. >> > >> > I think all two-glass-pane displays that don't have a vacuum may >> eventually >> > succumb to this. >> > >> > Perhaps it is just oxidation and not moisture, but I'd love to hear any >> > theories. >> >> >> Are you convinced this is a panel problem rather than a driver >> electronics problem? >> >> In one picture it looks like the sort of thing that happens when you have >> to turn up the brightness (for some types of display), resulting in partial >> illumination in other areas of the screen. >> >> I've never had opportunity to repair or work on EL flat-panel displays, >> I'm not familiar with the driving techniques and requirements, so this is >> just a query/guess. (I see it's an X/Y matrix drive scheme, but the >> voltages & timing & phasing I don't know about.) >> >> > > -- > Ian Finder > (206) 395-MIPS > [email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');> > > -- Ian Finder (206) 395-MIPS [email protected]
