Sorry, Mav-- I took a look earlier, then forgot to get back to you.
Nope, it cannot be converted. You need an independent clause which makes reasonable sense by itself to the left of the colon. 'There are.' is not one such. It will be acceptable if you recast as something like:
'There are several items on my table: my phone, a dictionary, and a Newsweek magazine.'
I see. My apologies, Anne, you were right. It's been a long time since I learned that so I either misunderstood or I just don't remember properly. MrM, thank you !!