I have a Belnea monitor model 10 17 25 and it had been giving good service until today ! screen suddenly switched off leaving green power ind. LED on .
I pressed the power button and picture came back immediately ! but disappeared again after approx. 20 sec.I pressed "on" again and it came back on but again after 20 sec. switched off. I repeated this procedure half a dozen times then I gave up ! . Can anyone help me please, all advice gratefully accepted