I own a HCL HCM582 Monitor..The problem is..the colors are not bright as normal..they look faded..very dull..as well as thr is no brightness..i tried adjusting the settings..no go..BTW its a CRT monitor.
did you tried Degauss.... or reset.. i had that monitor a long time back... it got over in ONE year , if the degauss works then its ok.. otherwise try folding the cas=ble the monitor input cable.. many times the cable gets bad from some ends.. so folding it does the job.. try this..