Joachim Berlich wrote:
Hello
i have an older Luxman 210, with the power on-off light won't go. I've
measured on the pins 0,8 Volt, i think this is too little. Someone has
an idea or can tell me, where to find a wiring diagram ?

Thanks
Joachim

Your volt meter may not be set on the correct range (AC or DC).

They're 24 volt lamps. Likely only the lamp is bad.

Mark Z.