Brother PE-770 - Manual (Page 78)

76
APPENDIX
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Stitches are
skipped.
The upper thread was not
threaded correctly.
Correct the upper threading. page 30
The needle is bent or blunt. Replace the needle. page 35
The needle is incorrectly installed. Correctly install the needle. page 36
Dust has accumulated under the
needle plate or in the bobbin case. Remove the needle plate cover and
clean the race.
page 70
A high-pitched
noise is made
while
embroidering.
Dust has accumulated in the
bobbin case.
Clean the race. page 70
The upper thread was not
threaded correctly.
Correct the upper threading. page 30
The bobbin case is scratched, or
has a burr on it.
Replace the bobbin case. Contact
your retailer or the nearest authorized
service center.
–
A bobbin designed specifically for
this machine is not used.
Incorrect bobbins will not work
properly. Only use a bobbin
designed specifically for this
machine.
page 24
The thread does
not pass through
the eye of the
needle.
The needle has not been raised to
the correct position.
Press the needle position button. page 32
The needle is incorrectly installed. Correctly install the needle. page 36
The stitch is not
sewn correctly.
The thread tension is incorrect.
Adjust the tension of the upper
thread.
page 64
The thread is tangled, for example,
in the bobbin case.
Remove the tangle thread. If the
thread is tangled in the bobbin case,
clean the race.
page 70
The lamps do not
come on.
The lamps are damaged.
Contact your retailer or the nearest
authorized service center.
–
The machine is not turned on. Turn on the machine. page 19
Nothing appears
on the LCD.
The brightness of the LCD is either
too light or too dark.
Adjust the brightness of the LCD. page 81
Machine does not
operate when
button is pressed.
An animation is displayed on the
LCD. Touch the LCD with your finger, and
the animation will disappear.
page 20
Embroidery unit
does not move.
No pattern selected. Select a pattern. page 49
The embroidery unit is not set up
correctly.
Set up the embroidery unit correctly. page 15
Embroidering
continues
although the
bobbin thread
ran out.
Dust has collected on the bobbin
thread sensor. Remove any dust from the bobbin
thread sensor.
page 70
Symptom Probable Cause Remedy Reference