Brother CS5055PRW User Manual

5 - 14
Failure Investigation
for Electronic Parts
Button hole cannot be sewn correctly
Button hole cannot be sewn correctly.
When the BH lever is lowered, is the resistance
between pin 1 and 2, 2 and 3 on the BH switch
connector normal?
• BH lever pulled forward
Pin 1 and 2 : 1Ω or less, pin 2 and 3 : more than 1MΩ
• BH lever pushed back
Pin 1 and 2 : more than 1MΩ, pin 2 and 3 : 1Ω or less
Attach the appropriate
presser foot.
N
N
Replace the main PCB assy.
Y
Y
Y
N
Adjust the BH lever.
or
Replace the BH switch assy.
Adjust the BH lever.
or
Replace the BH switch assy.
Is the resistance between pin 4
and 5 on the BH lever switch
connector normal?
• BH lever down : 1Ω or less
• BH lever up : more than 1MΩ
Is the appropriate presser foot
being used?

Brother CS5055PRW Specifications

General

Brand	Brother
Model	CS5055PRW
Category	Sewing Machine
Language	English