PRINTED CIRCUIT BOARDS
B135/B138 3-78 SM
3.19.2 I/O BOARD
1. Remove the rear lower cover [A] ( x 4).
2. Remove the I/O Board [B] ( All, x 4, Ribbon cable x 1).
3. The I/O Board is identical for the B135/B138. However, the DIP switches are
set differently for each machine. Check the DIP switches then adjust settings
as required. (See next page.)
B135R925.WMF
B135R926.WMF
[A]
[B]