2-18
EO18-33003A
2. MAJOR UNIT REPLACEMENT
2.7 REPLACING THE 600 DPI EXPIO PC BOARD (FOR B-452-HS MODEL)
1) Open the top cover. (Refer to Section 2.1.)
2) Remove the top cover. (Refer to Section 2.1.)
3) Disconnect the harness and flat cable from CN1 and CN3 on the 600 DPI EXPIO PC board, respectively.
2.7 REPLACING THE 600 DPI EXPIO PC BOARD (FOR B-452-HS MODEL)
4) Remove the two B-3x6 screws and detach the 600 DPI EXPIO PC board from the locking support that
secures it to the CPU PC board.
Fig. 2-29
Fig. 2-30
5) Replace the 600 DPI EXPIO PC board with a new one, and then reassemble in the reverse order of
removal.
Flat Cable
600 DPI EXPIO
PC Board
CN3
CN1
Harness
600 DPI EXPIO
PC Board
Locking Support
Rear Plate
B-3x6 screw
