Maintenance
7. Disconnect the
white multi-wire power cable from J111 on the C ombiner
board (See Figure 3-10.) by pushing down on the lock tab and pulling back
with a very slight side-to-side rocking motion. This connector is a snug fi t, so
it will take a bit of effort to disconnect.
Figure 3-10: Disconnecting the Main board power cable from the Combiner board
8. Use a 6 mm nut driver (7/32 inch may also work) to remove the four nuts
securing the circuit board support bracket to the bottom of the chassis
(reassembly torque: 4.0 in/lb). (See Figure 3-6.)
9. Lift the board support bracket up and away from the chassis while carefully
sliding the three power cables through the slots in the bracket. Remove the
bracket.
10. Disconnect the white power cable from the Main board.
11. On the rear panel, use a 3/16 inch nut driver to remove the eight Main board
connector post screws (reassembly torque: 4.0 in/lb.).
3–16 ECO8000 Series Service Manual
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