OHAUS Valor 1000W, Service Manual

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CHAPTER 3 MAINTENANCE PROCEDURES
Ohaus Corporation www.ohaus.com 3-2 Valor
™ 1000W Series Service Manual
2. Turn the scale over. Remove the thirteen screws holding the two Housing covers in
place.
(See Figure 3-1.)
3. Remove the two housing
covers.
Figure 3-1. Valor 1000W Bottom with red circles
indicating the positions of the screws that secure the
two housing covers.
Figure 3-2. PCB Housing
3.4 Removing/Replacing the Main PCB
If the Main PCB is suspected of being faulty, they should be replaced, as follows:
1. Disconnect the C
able connecting the Main PCB to the scale’s power system.
(See Figure 3-2.)
2. Remove the two screws that secure each PCB to the Housing.
3. If either the Main PCB or the Load Cell is to be replaced, note the order of the wire
colors, and then remove the Load Cell Cables from the Main PCB. (See Figure 3-2.)
Main PCB
with cable
to Rear
Display PCB
Rear Display
PCB
Load Cell Cables
Rechargeable
Battery