RE: diagnosing an Intel Series II MDS monitor failure

[dwight]

 
> From: a...@p850ug1.demon.co.uk
> 
> Was the failed IC marked '723' or some house number?
> 
> -tony Hi Tony As I recall, it was marked LAS723-2.5Luckily, before I simply 
> replaced it, I checked the feedbackresistor values. They didn't make sense 
> for 7V.My guess is that it made using the 723 for 5V supplies morepractical, 
> although it could be wired up.The data sheet seems to indicate a better 
> tolerance.The 2.5V references are usually bandgap and are tightertolerance. 
> As I recall, in the supply I was working on, it was a low current 12V 
> line.Dwight