"screen mold"

[Vintage Computer Festival]

On Tue, 4 Oct 2005, Andreas Holz wrote:

> I'm experiencing some monitors in the last time, mostly, but not only
> from HP, with the effect of some kind of small bubbles or shell-like
> failures in the flront part of the crt-tube. Somewhere I read the
> description of "screen mold".

Nowadays the consensus is leaning towards a delamination process.

> Does someone knows this effect, has an explanation of it's source (is it
> really temperature related?) or how to avoid this problem. Some of these
> monitors (esp. of a HP9845) are looking so badly, that I don't dare to
> power on.

Most likely it is the protective cover over the CRT which is delaminating
from the CRT face.  I don't currently know of a way to prevent this.  It
seems to happen randomly.

-- 

Sellam Ismail                                        Vintage Computer Festival
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International Man of Intrigue and Danger                http://www.vintage.org

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