2RV/2RW/2RX/2RY/3RA-1
4-86
22. Open the top cover (a).
23. Remove the screws(M3x8S tight)(b),
detach the right middle cover (c).
Figure 4-156
24. Remove two screws (a) (M3Ć8 tight).
25. Detach the USB PWB (b).
26. Check or replace the USB PWB (b),
and then reattach the parts which are
detached in the original position.
Figure 4-157
b
c
a