ViewSonic N1750w SERIES Service Manual page 13

4. Unscrew and remove four screws marked red.
5. Remove the shield as arrow direction.
6. Unscrew and remove six screws marked red in power board.
7. Remove the connector wire marked blue in power board.
8. Unscrew and remove four screws marked red in main board.
9. Remove the connector wire marked blue in main board.
10. Remove the power board and main board synchronously
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Two speakers
13
N1750w