Here we have a 'my first Sony' cassette player with a microphone

It can even take a second microphone, sold seperately of course

• Main microphone plug
• Secondary Microphone plug

This model uses four C-cell batteries, these have been in here since I was 10, hmmm... wonder if there's any juice left?

Time to take the batteries out

• Push down at one end of each row of batteries towards the spring
• With the tension released pull out on the battery until it comes out
• Repeat until all four are removed

Thumbs up to Sony for providing nice visual instructions for those kiddies

To remove the red back cover you need to remove six screws placed around the border of the cover

And wala! Now we have a nice view of all the internal components

Remove one screw to take off the rear part of the carrying handle

We also gain access to the rubber microphone holder

To remove the speaker first you'll need to get some slack on the wire, do this by pulling it out of a plastic holder thing

Proceed to to lift up the blue chassis and remove the four screws holding the speaker down

These screws also hold the yellow speaker grill to the front

It was a bit of a fight but I was able to pull the blue chassis out of the front piece of the red case

There were no fasteners holding them together

Take out three screws to remove the main circuit board

Then unplug four sockets attached to the circuit board

And here we have the only circuit board in this device, don't see any big processors on it, I guess I can't turn it into a super computer :(