The Story
This Player is one of the few good old CD players with two TDA1541A DAC chips in it.
Each channel has one TDA1541A chip with two r2r DAC’s, they are connected parallel together to linearize the DAC transfer of the music signal.
The bad thing is after the DAC’s are old opamps M5238L amplifying the signal.
So this is a modification project for later and then we will see if out of a good player
gets an excellent player.