welcome to first time English dot com ! really !
this is texting, it's what ever you want.
so you have a dead monitor? does the OSD work.
that is first, OSD if the ON SCREEN display fails the monitor power pack is dead or the monitor is dead,
monitor schematics can be hard to find
but 1second google search and i see this.
learn to use google?
no symptoms posted, or full English , here ill use google translate for you (so can you, dig?)
OMG the Spanish actually has facts.
"THANKS FOR ME AND FORGIVEN FOR MY ENGLISH !!
P.S. It takes a second to turn black and it seems that something causes excess consumption (low voltage 3 V.), then it is dark and the minute goes to amber, the led."
What does OSD do.
did you know a monitor is only $50 at walmart.
id bet it costs way more to fix any monitor than that.
parts, labor, shipping and bam broke.
the monitor is covered here 100% but no schematics. sorry.
read the words, my monitor is blank there? it tells you step by step what to do. well advised to read that or translate it.
the monitor has 4 buttons on the right
button 1 is OSD menu, this must work all the time with power on.
even with no PC connected. it works.
if not the power supplies inside the monitor are dead. or the power pack is dead, if it has external pack we test that next.
this monitor has LCD back lamp CCFL with inverter.
CCFL or well known to die fast or go dim or ugly yellow.
Id put this think in the trash and get a LCD with LED black lamps
in a heart beat. and never look back to CCFL junk again. IMO
id did not read your manual for you, just skimmed it,
but if it has a power pack id check that first.
then with CCFL (they sold the monitor over 17 years ago)
IF the screen goes back, we use a FLASH light, on the screen
and if you now see DATA of any KIND< the CCFL is bad.
in non geek that is "BAD BACK LAMPS" and supplies to it.
as seen here, ( if this works the back lamps are toasted)