Loud popping noise and no power - Husqvarna Garden

The loud pop you heard was probably one or more exploding capacitors in the power supply.

This is a hard problem to diagnose remotely. Someone has to have a look at the machine, as any number of electrical/electronic failures could cause a loud popping noise. I would recommend a service call.

Clicking noises are normal...banging noises are not. Replace the thermostat.

most likely a cv axle if it makes popping noise in turns

Loud popping and loss of power is common on plasma TVs and is usually either the Y sustain or Z sustain boards or buffers; in these instances the damaged part will be quite evident.

If this is an LCD you might have degraded insulation on one of the pink/blue backlight power leads causing high voltage to 'arc' to the chassis.

The loud bang and smell is actually to your advantage as in these circumstances the damaged part is usually evident. It'll just be a matter of popping the back off and sleuthing around. :)

Is it safe to use your microwave if it pops like this all the time randomly... And sometimes lights up in the back like a spark or something???

Pioneer has a power supply recall on some models. Do a search and you will find a number at Pioneer and they will replace your power supply for free. The loud popping noise and then nothing is a common problem with these. Hope this helps!
http://www.pioneerelectronics.com/PUSA/Support/Important%3A+Updated+Information+Regarding+Free+Power+Supply+Replacement+for+Certain+Pioneer+Plasmas