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Holy crap! I just stumbled across page 17 in that manual...   and the table at the bottom of the page that shows all of the solder connections to turn a TP10 into a TP20. (Well, that and a cable.)

Also, for reference here is the TP10-20-30 maintenance manual (pretty near the same as your TP32). Sourced from https://media.schoonerchandlery.com/wp-content/uploads/2018/12/21202305/01-TP10-20.pdf