My measurements are like the ones from jwyles90 in regard of the higher voltage IC4 pin 1, 7 & 8 and I think this is ok, I saw this in other posts.
IC3
1 14,92
3 7,46
4 6,96
5 0
6 7,46
7 7,32
8 7,32
IC4
1 14,9V
2 7,46
3 7,53
4 0
5 0
6 7,45
7 8,16V
8 8,0V