Sony DNW-A100 Maintenance Manual page 396

5-32-9. MB-648 Board
22. Remove the eighteen screws and remove the
MB-648 board.
23. Disconnect the flat cable from the connector
(CN147) on the MB-648 board.
24. Install the MB-648 board in the reverse order
of steps 2 through 23.
25. Turn the power on and confirm the unit runs
in normal condition.
5-212
MB-648 board Screws Screws
Screws
Screws CN147
Screws
DNW-A100/A50/A45
DNW-A100P/A50P/A45P