Interior Layout - Thermo Scientific GENESYS 20 Service Manual

Disassembly and Replacement
Figure 9.9 - Interior Layout
3. Remove the rear panel (refer to "Section 9.1.5 - Rear Panel").
It is sometimes easier to lift the module out of its cutout (Step 6)
before the wires are removed to make it easier to grasp the connectors
with pliers. Take care not to jerk the module too hard when
removing each wire or the remaining connected wires may be
damaged.
4. Remove the ground connector (green and yellow wire) from the upper
right terminal of the power entry module (as viewed from the rear).
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NOTE