View 1 of Samson MPL2242 mixer and LCS System master board both are untested and missing some slide buttons

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View 1 of Samson MPL2242 mixer and LCS System master board both are untested and missing some slide buttonsView 2 of Samson MPL2242 mixer and LCS System master board both are untested and missing some slide buttonsView 3 of Samson MPL2242 mixer and LCS System master board both are untested and missing some slide buttonsView 4 of Samson MPL2242 mixer and LCS System master board both are untested and missing some slide buttons