You don't have to take it apart, just take the cover off, take some pictures, post them, and we'll help you figure out which ones the DAC chips are (unless it's as Looser101 says, which, considering it's an entry level player, is likely).
So the Pico DAC is the fist upgrade DAC you'll have ever heard? Oh, dear...
PS Welcome to Head-Case, sorry about your thin skin &c.