OHAUS Valor 1000W Service Manual

CHAPTER 3 MAINTENANCE PROCEDURESOhaus Corporation www.ohaus.com 3-2 Valor™ 1000W Series Service Manual2. Turn the scale over. Remove the thirteen screws holding the two Housing covers inplace.(See Figure 3-1.)3. Remove the two housingcovers.Figure 3-1. Valor 1000W Bottom with red circlesindicating the positions of the screws that secure thetwo housing covers.Figure 3-2. PCB Housing3.4 Removing/Replacing the Main PCBIf the Main PCB is suspected of being faulty, they should be replaced, as follows:1. Disconnect the Cable 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 wirecolors, and then remove the Load Cell Cables from the Main PCB. (See Figure 3-2.)Main PCBwith cableto RearDisplay PCBRear DisplayPCBLoad Cell CablesRechargeableBattery