I purchased a Philips portable

Question

I purchased a Philips portable CD player a few years ago.It has never worked consistently from day to day. I havetried EVERYTHING I know to do. When I switch it on, it blinks "1" with dotted lines underneath the "1". Sometimesthe CD will start playing, but the majority of the time,it will show "NO DISC" or "NF DISC", and then shut itselfoff. (Yes, I do have a CD in there). I am ready to flingthis player out of the window!!!!!!!!!!