Guides I've Contributed To
Answer to: Turns off in a few seconds after turned on.Overheating problem. Worth a stripdown and reapply the heat sink compound to the CPU / heatsink.
Answer to: ceramic fuse is blowing in power supply boardCheck for short after fuse. Voltage dependent device (if fitted, a blue flat disc size of 1p coin) will go short, as can the bridge rectifier or the smoothing capacitors.
Nikon D600 Teardown
The flash capacitor is actually 350v / 350 µF.