Funny how I can build computers, repair HDTV, setup networks and know most tech hardware out there today
Not aimed exactly at you (or actually - it very much is, if you have used this exact claim in any actual conversation or even something above informal), but that's a bold overstatement for most people of this sort - self-taught techies, oldf 80-ties and 90-ties floppy disk master techies, today's clueless metrosocial techies, worse closet geeks than me own - I've had the chance to meet (and I do quite often in my line of work). People in HR have, with good reason, too, started to get wary of these self-proclaimed know-it-alls for quite a while now, since recession, when many of them were forced to pack up at a rate faster than their morning coffee cups got filled.
And if you are very good, you might still be looked with a wary eye just for claiming to be a wide range specialist (unless you can show relevant job experience of years and more in each field). No, fixing things for friends, family and neighbors don't count at all. Side jobs, temp jobs and freelance don't. Browsing tech sites don't, either. All the shyte in IT is done almost universally by universal specialists. Rather, find a specific key skill that you do very good, emphasize it extensively with experience and examples, and mention the rest only as hobbies or if asked. While there definitely are HRs that would prefer you overselling, it's probably a shyte job where you'll actually be required to do things outside your contract, either as a mop or a pencil in some PHB's hands - better left for PFYs, interns and really desperate people, right?