I am working on an DIY-CD-player, that is mostly salvaged from an old Sony CDP + adding a modern DAC.
The casing will be custom milled and has a motorized top lid that utilizes the electronics of the original tray.
So far so good.
But I want the design simple and not many buttons.
Thus I would like to combine the existing "Stop" and "Eject" buttons to one button without altering the original circuit
besides probably replacing original tactile switches for "Stop" and "Eject"
I assume there is at least one electrical relay needed that mimicks the short push of the original tactile switches.
It would be sufficient to trigger "Eject" by having the combined button pushed for a longer time, maybe two seconds.
I am an absolute noob in electronics and not good in logical thinking (but I know how to solder, even SMD).
So how do I make this delay?
I would like to use"outdated" hardwired electronics for this, as simple as possible.
Shouldn´t be a capacitor and a diode in series be sufficient?
While pressing the button for "Stop" for a longer time, the capacitor loads, the diode drains it after the
treshold voltage is reached, driving a circuit that powers the electrical relay for Eject...
But I guess this would only work once, after starting up, as the capacitor will not be drained completely...?
Any advice would be very much appreciated...
Thanks, Herbert
The casing will be custom milled and has a motorized top lid that utilizes the electronics of the original tray.
So far so good.
But I want the design simple and not many buttons.
Thus I would like to combine the existing "Stop" and "Eject" buttons to one button without altering the original circuit
besides probably replacing original tactile switches for "Stop" and "Eject"
I assume there is at least one electrical relay needed that mimicks the short push of the original tactile switches.
It would be sufficient to trigger "Eject" by having the combined button pushed for a longer time, maybe two seconds.
I am an absolute noob in electronics and not good in logical thinking (but I know how to solder, even SMD).
So how do I make this delay?
I would like to use"outdated" hardwired electronics for this, as simple as possible.
Shouldn´t be a capacitor and a diode in series be sufficient?
While pressing the button for "Stop" for a longer time, the capacitor loads, the diode drains it after the
treshold voltage is reached, driving a circuit that powers the electrical relay for Eject...
But I guess this would only work once, after starting up, as the capacitor will not be drained completely...?
Any advice would be very much appreciated...
Thanks, Herbert