Hy,

i have been trying to repair / refurbish an BL8000. Sadly it has 2 faults at the moment

when i power the speaker it turns on. Green led, relay clicks. If i connect an audio source i get sound. But it does not turn off. 

The speaker does have a bit of buzzing. Caused by a repair on the p3 cable that the audio comes in on. But even when i disconnect the plug in p3 of the pcb 2 the buzz goed away

 

but the speaker never goes to standby. The led stays green