3DR Solo User Manual - page 49
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9.4.3
Leg #4 with Compass
Solo’s right-rear leg (#4) contains the compass module. Start by detaching the leg from the arm as you would a
standard leg, but the leg will not be removable until you disconnect the compass from Solo. To access the compass
connector, you’ll need to remove the battery tray from Solo. See Section 9.5 for battery tray removal instructions.
With the battery tray removed, locate the compass connector in the corner of the board closest to the leg being
replaced. Disconnect the compass connector from the board by holding down the tab on the far side of the
connector and lifting up the connector. Since the space between the arm and the connector is limited, it may help to
use a screwdriver to press the tab.
Figure 9.4.3.1: Compass Connector on Mainboard
With the compass disconnected, remove the old leg and cable from Solo. Place the new leg into position and thread
the new compass cable through the arm where it can connect to the board. Connect the compass connector in the
same place as the old compass.
Figure 9.4.3.2: Insert New Leg with Compass
Secure the new leg in place and replace the battery tray.