amp I bought 3 days ago not powering on - electrical engineer advice wanted

@parkergetdean 

Checking your fuses is a waste of time, just like most of the other suggestions made so far.

If you want to learn how to fix your own gear - more power to you! I highly recommend it, but it sounds like you’d be starting from scratch and there’s a learning curve.

If you choose that route, sites specializing in DIY audio will be great resources with a lot of guys who actually know what they’re talking about.

If that’s not your goal, that’s fine too. There must be a few great techs in the greater LA area!

@devinplombier I want to learn to fix it myself but I know my limits. If I learn to fix things I should do it on gear that has little value. 

There are a few techs I know in a 20 mile radius, one of them is good but they had never done a thing under $300. So I have 300 reasons to open it and at least scratch my head. 

@parkergetdean 

Yes, get a dead audio component off craigslist for 10 or 15 bucks and fix it. That'll get your feet wet, but - if you're successful on your first try, there's no turning back and you'll have a new hobby :)

Keep us posted!

Looking at a schematic of the A300 and assuming the A308 is similar, the problem appears to be a bad thermistor downstream of the power switch. It is a $3 dollar part (Vishay SG27) and should require no more than a 1/2-hour of labor to replace.

Wow! Thank you @gs5556 that’s very precise!

@devinplombier I have a few busted amps, good enough to practice