Kowa K9L39F5BE, Service Manual

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GG-09004 Edition 4.0
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②－１２ Replacing the optical head drive motor
１ Disconnect the connector from the CPU board.
２ Remove two screws and then a timing belt.
３ Remove the optical head drive motor unit.
４ Fit a timing belt around the pulley to fit a new optical head drive motor unit to it.
５ Connect the connector.
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③－１ Replacing the power board
１ Disconnect the connector from board (video board, USB interface board) in aluminum case.
２ Remove 4 screws and lift an aluminum case.
３ Disconnect the connector from the power board.
４ Remove 7 screws and then the power board.
５ Fit a new power board and connect the connector.
６ Fix an aluminum case and connect all connectors.
2 2 4
③－２
Replacing the video board
１ Remove 4 screws and remove the lid of an aluminum case.
２ Disconnect the connector from the video board.
３ Remove 2 screws, 2 supports and then the video board.
４ Fit a new video board and connect the connector.
５ Fix an aluminum case.
1 1 3