OHAUS EB SERIES, Service Manual

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CHAPTER 3 REPAIR PROCEDURES
Ohaus Corporation www.ohaus.com 3-2 EB Series Scales Service Manual
3.2 REPLACING THE MEMBRANE SWITCH
The membrane switch is affixed to the Top Housing of the scale. To replace the Membrane
Switch, the scale must be disassembled to gain access to the switch connections.
1. Refer to Section 3.1 and remove Top Housing.
CAUTION
Use care in the next step as the Display PCB wiring is attached to the PCB.
2. Place the scale in the upright position and carefully lift the Top Housing from the Base
Housing.
Figure 3-2. Removing the Top Housing.
3. Carefully disconnect the ribbon cable from connector on the Display PC board.
See Figure 3-3.
Figure 3-3. Ribbon Cable from Main PCB to Display PCB.