1) At which time interval(s) of the first movie does the finding and playing audio cassette and reading a book of the dead and zombies being raised scene(s) take place?

2) At which time interval(s) of the second movie does the chainsaw scene(s) take place? Same for the 3rd movie?

Please, let me know as soon as possible. It’s important for something I’m working on concerning references involving screenshots from those movies rather than watching the whole thing each. That, and the fact that I don’t really enjoy horror movies either. My main interests are the scenes later referenced in other media in the questions above.