control board vs control panel

control board and control panel both are nouns.

Word	Noun	Adjective	Verb	Adverb
control board	Yes	No	No	No
control panel	Yes	No	No	No

As nouns, control board and control panel are synonyms defined as:

control board and control panel: electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices

Other synonyms of control board include board, instrument panel, panel.

control board (noun)	control panel (noun)
electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices	electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices