That's a heck of a brilliant idea! But I would suggest to place it inside the subwoofer, since there isn't much space inside the pod. I don't know about disconnecting the control pod, but you can control the main AC lines to the amplifier, without messing much with the control pod.Hi,
I've noticed that the Z-5500 consumption is, with S/PDIF:
I've also always been annoyed by the need to turn it on and off.
- ~10 W when off
- ~23 W after turning it on (without input signal)
- ~38 W once it has received some input even it stopped
Now, the JBL Media 200 has an auto turn-on/turn-off feature:
I'd like to achieve that with the Z-5500.
I've thought about using an Arduino Nano or a Raspberry Pi Pico inside the control pod, to poll the input signal and control a relay.
Note that when the control pod is disconnected from the sub, the consumption drops to ~0 W. So the relay could cut that connection, then resume it and turn on the pod when a signal is detected.
Does anyone have any ideas or pointers?
I would use the 3-pin 8V regulator that powers the control pod to power the Arduino. Itself is powered by a second independent line from the transformer (blue wires). You can also directly use the pin 10 (+8V DC) maybe adding a step down converter to 5V.
For control signal I would use the stand by signal which is pin 6. To enable the system (thus your relays for the power) the pin is grounded. Use it as an input to your Arduino, and output a signal to two 5V relays controlling the red and yellow AC lines from the transformer to the rectifier.