Thanks for your interest. It comes from a used market and some electronic components are missing on the amplifier board, the rest works well.
The circuit is quite simple, a pair of LM3886 per channel in bridge with photoresistor limiter plus an NTC resistance that drives an LM317 to vary the speed of a cooling fan. I would not waste time getting the values of the missing electronic components, possibly I first put a different type of amplifier, there is enough space inside.
I don't think he's a re-branded Behringer because the LEM company belongs to the historical Italian companies. Unfortunately, today it no longer exists.
The circuit is quite simple, a pair of LM3886 per channel in bridge with photoresistor limiter plus an NTC resistance that drives an LM317 to vary the speed of a cooling fan. I would not waste time getting the values of the missing electronic components, possibly I first put a different type of amplifier, there is enough space inside.
I don't think he's a re-branded Behringer because the LEM company belongs to the historical Italian companies. Unfortunately, today it no longer exists.
Nope, don't think so: Generalmusic - Wikipedia
Seem to be able to find the Lexus RX300 wiring diagram, but not this!
missing components could be options or components for a different model that uses the same PCB.
so your certain the amplifier is the problem?
in searching this myself i encountered links to meat grinders!
so your certain the amplifier is the problem?
in searching this myself i encountered links to meat grinders!
Thanks for your interest. The missing electronic components are due to unsuccessful repair attempts before buying them at the second-hand market. Here I have found some photographs of the complete electrical board, unfortunately they are not very clear and the value of the electronic components cannot be read.