you results for 10 and 11 don't make sense
when you say nothing for test 10. resistance 0 is actually continuity
open circuit would be infinity
test 11 is for the output signal and is a square wave and should be tested with your meter set to ac
you are saying you have a resistance value for test 11 which is correct for test 10. but then you say you have no restistance value at test 10. which is the same pins 3 and 4 as test 11
clarify these problems and tests first as they would give you the faults you are experiences
Can you post you results next to the test procedure as it will make it easy for us to help you