Service Manual MSO/UPO3000E Serials products
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2.
Use
9/16" open end wrench to remove the four B's of the front panel assembly
Nuts and washers for NC.
3.
Use a PH1 Phillips-tip screwdriver to remove the ten screws that attach the motherboard to the front case assembly,
and use needle-nose pliers to remove one copper post. Then take out the motherboard.
