Touch Panel Is Malfunctioning - Brother NQ3700D Operation Manual

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.
h Grasp the bobbin case, and then pull it out.
i Use the cleaning brush or a vacuum cleaner to remove
any lint and dust from the race and bobbin thread
sensor and the surrounding area.
c
1 Cleaning brush
2 Race
3 Bobbin thread sensor
Note
• Do not apply oil to the bobbin case.
j Insert the bobbin case so that the
bobbin case aligns with the
a
b

• Align the and marks.
1
mark

2
mark
3 Bobbin case
• Make sure that the indicated points are aligned
before installing the bobbin case.
104
a
mark on the

mark on the machine.
a b
c
k Insert the tabs on the needle plate cover into the
needle plate, and then slide the cover back on.
Reattach the bobbin cover.
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.

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.
 The touch panel adjustment screen is displayed.
b Lightly touch the center of each +, in order from 1 to 5.
+1
+2
c Turn the main power to OFF, then turn it back to ON.
+4
+5
+3