Samsung ML-7300 Series Service Manual page 32

Disassembly
There are two wires for LSU. One is LSU motor and the other is Laser beam control. The wires
are wire to wire types. You can easily disconnect the wires. After disconnection, unscrew and
remove LSU.
Notice : When you exchange he defective "LSU unit" for good,
you have to remove the slim film on the LSU lens.
=> If not , no image is occurred , because laser beam does not transmit the slim film.
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