Brother International Innov-is NQ3700D Operation Manual - Page 106
Touch panel is malfunctioning
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Care and Maintenance ■ If there is no screw in the needle plate cover 1 Grasp both sides of the needle plate cover, and then slide it toward you. Insert the tabs on the needle plate cover into the k needle plate, and then slide the cover back on. Reattach the bobbin cover. Grasp the bobbin case, and then pull it out. h Use the cleaning brush or a vacuum cleaner to remove i any lint and dust from the race and bobbin thread sensor and the surrounding area. CAUTION • Never use a bobbin case that is scratched or has a burr on it. Otherwise the upper thread may become tangled, the needle may break or sewing performance may suffer. For a new bobbin case, contact your nearest Brother authorized service center. • Be sure that the bobbin case is correctly installed, otherwise the needle may break. c 1 Cleaning brush 2 Race 3 Bobbin thread sensor a b Note • Do not apply oil to the bobbin case. Touch panel is malfunctioning If the screen does not respond correctly when you touch a key (the machine does not perform the operation or performs a different operation), follow the steps below to make the proper adjustments. Holding your finger on the screen, turn the main a power switch to OFF and back to ON. Insert the bobbin case so that the mark on the j bobbin case aligns with the mark on the machine. a b a b • Align the and marks. The touch panel adjustment screen is displayed. Lightly touch the center of each +, in order from 1 to 5. b +1 +4 +5 +2 +3 c 1 mark 2 mark 3 Bobbin case • Make sure that the indicated points are aligned before installing the bobbin case. Turn the main power to OFF, then turn it back to ON. c 104