Brother CS5055PRW User Manual

5 - 18
Failure Investigation
for Electronic Parts
LED lamp does not light
LED lamp does not light.
Connect it correctly.
N
Y
Y
Are the operation PCB assy. and LED
lamp assy. connected correctly?
Connect it correctly.
N
Y
Y
In case of models equipped with the
LCD back light, is the LCD (back light
PCB assy.) lead wire connected to
the operation PCB assy. correctly?
Replace the power supply
PCB assy.
N
Is the voltage between pin 4 and 3 at
the power supply PCB assy.
connector 30V DC?
Connect it correctly.
N
Are the main PCB assy. and the operation
PCB assy. connected correctly?
Replace the LED lamp assy.
or
Replace the operation PCB assy.
or
Replace the main PCB assy.

Brother CS5055PRW Specifications

General

Stitch Number	50
Needle Threader	Automatic
LCD Screen	Yes
Speed Control	Yes
Free Arm	Yes
Maximum Sewing Speed	850 stitches per minute
Lighting	LED
Buttonhole Styles	5 one-step
Included Accessories	needle set, bobbins, screwdriver, seam ripper, cleaning brush
Presser Feet	7 included
Bobbin Type	Drop-in