Hello everybody. I am looking for the AdMOS QS1000 datasheet to figure out which pins are the audio output from the QS1000 chip. The sound card is an OPTi 931 noname ISA card that works except for the MIDI part. I tried to increase the volume of all possible mux channels with the UNISOUND utility but still no MIDI sound. Tried original OPTi931 drivers with the same result. With an oscilloscope I verified that the 24MHz crystal clock on the QS1000 is generated and the wavetable ROM is accessed according to the sound played with DOSMID. I'd like to see with the scope if there is an audio output generated by the QS1000 but have no idea at which pins to attach the probe? Any advice is welcome. If there is no audio signal output I'd assume that the QS1000 is defective unless you have other ideas?