I have used the words. "service manual/data", "schematics", "circuit diagram", and even "comics" and/or " dandy and beano" at different times in my life, they are all more or less the same thing and interchangeable, it just depends on which organisation you happen to be working for at a given point in time and which particular terms they happen to use at the time, go along to get along as they say, just so long as I know what they mean in a given context
