Sharp C6400U Service Manual page 22

LC-52/60/70LE640U/C6400U,LC-80LE633U/844U (1st Edition)
2. Removing of Speaker (L/R), KEY Unit and Bottom Cover.
1. Remove the 2 lock screws
2. Detach the Speaker (L) , Speaker (R)
3. Disconnect the SP wire.
4. Disconnect the RC wire.
5. Detach the KEY Unit Ass'y
6. Disconnect the KM wire.
7. Remove the 2 lock screws
8. Detach the KEY Unit from Key Button
9. Remove the 4 Hooks and detach the 2 Bottom Cover
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and detach the Key Button
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from Key Button Cover .
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