OHAUS TROOPER, Service Manual

Page: 30 / 70

2-18
CHAPTER 2 DIAGNOSIS
Figure 2-4. Trooper Count Scale Membrane Switch Wiring Diagram.
COL5 COL5
COL4 COL4
COL3 COL3
COL2 COL2
COL1 COL1
ROW4 ROW4
ROW3 ROW3
ROW2 ROW2
ON/OFF ON/OFF
ROW1 ROW1
GND GND 1
1
1
2
2
3
3
4
4
5
5
2
2 2
1
2
2
2
2
1
1
2
1
1
1
1
2
1
2
1 1
2
2
1
1
1
1
2
1 1
2 2
1
2
1 1
2
1 1
8 9
ON/OFF
6 5
M+
2 3
Clear
Data
7
4
SAMPLE SAMPLE
1
LIBRARY
PRINT
Enter
M-
0
TARE