This thing was pretty solid. The circuitboard is silk screened on both sides with labels for everything, test points, and a trademark Epson thick technical manual. Repair is fairly easy except for the self destructing batteries that take out the FFCs inside. Still, if you can get your hands on one, you can probably repair it. The technical manual even goes into detail on how to install the capacitors, recommending about 1mm below the capacitor for the legs to come up and connect, so in the future if you have to replace them, you just cut the legs off and remove the remnants.