Check this thread for some info.
https://www.diyaudio.com/community/threads/teac-cd-z500-schematic.74658/
It references the part number CMK-140SX on your board.
https://www.diyaudio.com/community/threads/teac-cd-z500-schematic.74658/
It references the part number CMK-140SX on your board.
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