Brother PE770 Service Manual page 228

Special Instructions of Wiring Motor PCB assembly wiring
3. Wiring at top side of motor PCB
Pass the lead wires Pass the lead wires
through the groove. through the groove.
The lead wires
from the needle
presser module.
4. Wiring at upper section of motor PCB
Secure the lead
wires with a clip.
The lead wires does not go over
the right side than a dashed line.
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