Brother CS5055PRW - Operation Button Does Not Work

5 - 15
Electronic Parts
Failure Investigation
for Electronic Parts
Operation button does not work
Operation button does not work.
Attach the main PCB assy.
correctly.
Replace the SSVR PCB assy.
Is the resistance for the start/stop button,
reverse/reinforcement stitch button and needle
position button normal?
*
In case of models not equipped with the start/stop button.
Is the resistance for the reverse/reinforcement stitch
button normal?
• Switch depressed : 1Ω or less
• Switch released : more than 1MΩ
N
N
Y
Y
Replace the main PCB assy.
Is the main PCB assy. attached
correctly?
(Is the BW switch OFF?)