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Andy Cuffe
 
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Default Sony GDM-FW900 Monitor Brightness Problem

On Tue, 24 Jan 2006 20:09:37 GMT, "Bob Kos"
wrote:

Any idea what the actual purpose of this menu selection is? The fact that
it fixed my monitor is great, but I can't imagine a menu setting designed to
compensate for screwed up components or anything like that. The manual is
quiet regarding the use of this option. Any thoughts?


I believe it measures the CRT cathode current for each gun and adjusts
them to the correct preset levels. It's similar to the AKB used in
TVs, only it doesn't operate continuously. My only question is why
the CRTs in these monitors get so much brighter with age.

The monitors made before they added the restore feature required
either a DAS calibration, or a modification to reduce the G2 voltage.
There are also a lot of 21" Sony monitors with a restore feature that
doesn't work.
Andy Cuffe