OHAUS TROOPER, Service Manual

Page: 19 / 70

2-7
CHAPTER 2 DIAGNOSIS
Figure 2-1. Trooper Scale Interconnection Diagram.
MEMBRANE
SWITCH
Print
Units G/N/T
Menu
On/Zero
Off
Tare
Figure 2-2. Trooper Scale Membrane Switch Wiring Diagram.
2.4 TROOPER SCALE DIAGRAMS
Load Cell
9
8
6
7
1
2
3
4
5
GND
TXD
RXD
-SIG
+SIG
+EXE
-EXE
CGND
Yellow
1
J4
5
4
3
2
1
Membrane Switch
Red
3 4
White
5 6
Orange
Green
7 1
White
2
3
J10
Black
2
3
1
Black
Red
J7
1
2
Red
J6
4
Main PC Board
Red
Harness,PWR/COM
RS232
1 2
3 4 5
3
Black
J1
Adaptor Input
Battery Holder
2
J5A
TARE
PRINT UNITS
ON/ZERO & OFF
COMM
G/N/T & MENU
NOT USED