8
Figure 1.2 Older version of the main PC board
The jumper shown in Figure
1.2
is in the ‘calibration unlocked’
position. The scale can be calibrated with the jumper on the two
pins on the right side. Pull the jumper up and move it to the left
two pins to lock calibration
There is an older style PC board your unit may have. It is shown
below.
