OK, that was a bit difficult to understand, even for me.
Let's break it down into steps.
1) Connect the junction of pins 2/6 to Vcc (+9v).
2) Measure the voltage on pin 3 with respect to ground (red probe on pin 3, black probe on the GND pin or battery -). You should read less than 0.5v. If you read more than that, there is a problem.
3) Disconnect the junction of pins 2/6 from Vcc, and connect it to ground (battery - terminal).
4) Measure the voltage on pin 3 with respect to ground (red probe on pin 3, black probe on the GND pin or battery -). You should measure about Vcc minus 1.3v; ie: if your battery measures 9v, you should read about 7.7v on pin 3.
