err...so how did you measure the voltage before? You presumably found the 0.02uF cap, one end is ground, the other is terminal 5. To that cap (somehow) the 470 Ohm resistor is connected. In that part of the circuit there are only two 2W resistors, this one and a 27k version. Simply look for a 470 Ohm 2W resistor, confirm visually or with a meter that one end is connected to the cap. Measure its resistance, and at the non-cap end measure the voltage.
Steve A.