After a fair bit of work, the Pioneer PD-M410 is ready to be tested!
The final steps were to put the case back on, secure the power cord strain relief, and load the cartridge. On the right you can see what the cartridge looks like as it is being pushed, gently, into the machine.
As you can see, the control panel lights up exactly as it is supposed to. All we have to do is press “Play” and take a listen.
The Pioneer PD-M410 6-disc CD player works! The machine passed all the audio tests and it sounds great. As you can see, the preliminary test was done with the cover off, but it worked just as well with the cover on.