I got the AIWA NSX-S111 music center.In this article I will show its schematic diagram and show the boards.On the main board there is a low frequency amplifier and a radio receiver
Electrical diagram of the main board
The output stage of the low-frequency amplifier is made on four transistors 2sb1616 and 2sd2478.
Control board and circuit.The control is performed on the M38B59MFH-P113FP processor