Main Printed Circuit Board - OHAUS VALOR 4000 Service Manual

3.4 Removing/Replacing the Main PCB and Display PCB
If the PCBs are suspected of being faulty, they should be replaced, as follows:
Disconnect the Cable connecting the Main PCB to the scale's power system.
1.
(See Figure 3-2.)
2. Remove the four screws that secure the PCB to the bottom housing.
3. Remove the white glue on the PCB that secures the load cell connector.
4. If either the Main PCB or the Load Cell is to be replaced, note the order of the wire
colors and then disconnect the Load Cell Cable from the Main PCB.
(See Figure 3-2.)
Valor™ 2000/4000 Series Service Manual
CHAPTER 3 MAINTENANCE PROCEDURES
Figure 3-2. Top and Bottom Housings
Figure 3-3. Main Printed Circuit Board.
3-3
Load Cell Cable
leads.
Front
Display/
Main
PCB
Load
Cell
Frame
Rear
Display
PCB
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