Instructables

Foot operated remote for minidisc player

Make a foot operated remote control for your HHB Portadisc MDP500 minidisc player. I use this in my puppet shows as I generally use two glove puppets and have yet to try growing a third hand.

The HHB Portadisc comes with a 'remote' socket, already for transport controls to be implemented in any form you like.

The HHB Portadisc has a rather useful pause after track function, so that I can keep pressing pause to cue the next track.
 
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Step 1: The HHB Portadisc

The MDP500 is a minidisc player that will record and play minidiscs. It has a useful pause after track function (auto pause) that allows you to play a track then have the unit go straight into pause ready to play the next track as soon as you hit the pause button. Just perfect for cuing sound effects and music intros.

I bought this specifically for my puppet shows and to record audio for some animated stores I was working on at the time.

You can see in the second picture the socket labelled 'remote'. This is where the remote plugs in.

Step 2: Pin out and circuit diagram

Picture of Pin out and circuit diagram
Here is a pin out for the din plug and a circuit diagram. The only thing to point out here, and the one thing that stumped me for far too long was the REMOTE ON.

When I plugged my remote into the Portadisc the first time, the Portadisc was off. I assumed that the remote on was a remote means of powering up the port a disk.

...

!! WRONG !!

...

The remote on simply enables or disables the switches on the remote. Like I say, it took far too long to work that out!!
Gjdj35 years ago
Nice! Looks like you put a lot of work into it.
Bongmaster5 years ago
nice minidisk player :3