[torbjorn]

Well, now this amplifier has been laying around in parts for 15 years or so, it is time to put it together and get it in working order. From the beginning the repair was abandoned due to lack of service manual and the unusual design of the amplifier (switched mode, class D).
Just a pity that Sony has re-used the designation XM-1 on other equipment in recent years, that doesn't make searching for manuals easier.