There are INCOMPLETE schematics for the Arcam CD 36, but none for the CD 33.
Actually, any DAC or CD player schematic showing the AD1896 sample-rate-converter will do.
You can use this page and search for keyword "1896"
https://www.dutchaudioclassics.nl/the_complete_d_a_dac_converter_list/
Models of DACs and CD players with sample-rate-converters, in general, are missing service manuals and/or schematics.
Thanks!