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New Brunswick Scientific
User’s Guide
5.10
Replacing the Main Control Board
1. Switch the shaker off and disconnect the line cord.
2. Open the lid and remove the (2) 3/8 inch hex nuts. These nuts are located on the
back of the front panel.
3. Carefully push the two threaded studs, now exposed, so that the control panel
eases out from the lid.
Figure 11: Control Board Replacement
4. Disconnect the harness wiring from connectors J1, J2, J101, J102, J103 and J104
(
see Figure 11 above
).
Summary of Contents for Innova 4300
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