Hi,
I made 5 pin cable (Neutric and CANARE) with blue LED.
LED was simply conected pin 4 and pin 5 with resistor.
I made it for power indicator. (DS-5 is no indicator)
But It is lighting when it out from AC.
I think LED is powered by capacitor.
(LED needs only a few mA current.)
I don't get any other troubles now.
Of course, I yearn the bass with shiny LED.
My dream is come true only $ 1 (for parts).