OHAUS ST300, Руководство по обслуживанию, Страница: 19 / 29

CHAPTER 2 MAINTENANCE PROCEDURES
Starter Series Portable Meter Service Manual 2-3 Ohaus Corporation www.ohaus.com
3. After removing the two screws gently remove the battery spring from the housing
in order to lift up and replace the main PCBA. (See Figure 2-3)
4. After removing the battery spring gently lift up the main PCBA and slide down
wards in order to remove the PCBA from the bottom housing.
5. Replaced with a new main PCBA.
6. Reconnect the battery spring and install back the two screws which securing the
main PCBA to bottom housing.
7. Insert back the housing rubber ring in position.
8. Re-install the top housing.
Figure 2-3. Battery spring (marked with
yellow circles).
Figure 2-4. Replacing main PCBA.