So, we can surmise that its not a mechanical problem and most likely a failure of a simple part like a diode, transistor or capacitor.
So to address your original question, yes. Get an estimate from a reputable repair shop that has experience with these types of products and get it fixed. Scrapping it and buying another one would not save you any money and could possibly expose you to additional problems if the seller is not 100% forthright on the condition.
Cheers!