2-23 (E)
MAV-70
2-5-6. MB-755 Board
1.
Remove the MB board assembly. (Refer to Section 2-
5-5.)
2.
Disconnect the connectors (CN341, CN342) of the
harnesses connected to MB-755 board.
3.
Remove the MB-755 board from the MB-756 board.
4.
Replace the MB-755 board and perform the removal
procedures in reverse order.
n
When the MB-755 board is connected to the MB-756
board, be sure to connect an edge on each connector
securely.
2-5-7. AC-188 Board
1.
Remove the MB board assembly. (Refer to Section 2-
5-5.)
2.
Remove the connectors (CN4 to CN8) of the harnesses
connected to the AC-188 board.
3.
Remove the three screws (PSW3
x
8) and eleven
screws (PSW 3
x
6), then remove the AC-188 board.
4.
Replace the AC-188 board and perform the removal
procedures in reverse order.
2-5. Boards Replacement
MB-755 board
MB-756 board
AC-188
board
CN341
CN342
PSW 3
x
6
PSW 3
x
6
PSW 3
x
6
PSW 3
x
6
MB-755 board
AC-188 board
MB-756 board
PSW 3
x
8
*
1
*
1
CN8
CN7
CN5
CN6
CN4
