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c. Remove the two tubular Spacers between the Exposure and Ranging
Boards, and remove the Ranging Board with the Transducer connected
to it (Figure 3-16).
Figure 3-16. Removing Ranging PC board
d. Remove the three Bottom Cover Screws (Fig. 3-17), but leave
Bottom Cover in place.
Figure 3-17. Removing Bottom Cover Screws
2. Replacement
Follow the removal steps in reverse order.
RANGING BOARD
SPACERS
BOTTOM COVER SCREWS
BOTTOM COVER