21 Chapter 4
The following list shows the function of each VR:
VR Function
VR1 A/D full scale (gain)
VR2 A/D bipolar offset
VR3 A/D unipolar offset
VR4 PGIA initial offset
TP1 PGIA output
4.3 A/D Calibration
1. Connect Pin1 to Pin9 and measure the output as "V1" from TP1.
