1-7-2. Replacement of 50-pin connector
1. Loosen the three screws and open the outside panel. 2. Release the locks of CN501 and CN502 on the MB851 board and pull out the flexible card wires. (Refer to Section 1-7-3.)
CN501 CN502 Flexible card wires Screws
4. Remove the two slot-head screws and the two screws (M2 x 3) and remove 50-pin connector. n Do not lose the nuts on both sides of the 50-pin connector.
50-pin bracket
M2 x 3
Slot-head screws N2, TYPE2
50-pin connector N2, TYPE2
5. Desolder from the CN-1556 board and remove the 50pin connector. 6. Solder the new 50-pin connector on the CN-1556 board.
MB-851 board
50 spots
Outside panel Screw
50-pin connector
3. Remove the four screws and remove the 50 PIF assembly together with the flexible card wire from the unit.
M2.6 x 5 M2.6 x 5
CN-1556 board
50 PIF assembly
7. Install the 50 PIF assembly in the reverse order of steps 3 through 6. n When installing the 50 PIF assembly, pull the two flexible card wires toward the outside panel from the clearance between the unit and the MB-851 board. 8. Connect the two flexible card wires to CN501 and CN502 on the MB-851 board. (Refer to Section 1-7-3.) 1-7 (E)
