0646_2021_0118_001

About the product
Date of repair
Ref. number
1
Repairer
FRC
Brand
Professional Studio
Kind of product
Sewing machine
About the repair
Defect found
Would work when rotating by hand but not with motor. PSU found to be reverse polarity (so machine ran backwards, hence would not sew) and also PSU "folds back" sometimes on high current demand meaning stops/starts. (Works perfectly with bench supply). LED light also found to be intermittent dues to poor connection
Problem description + probable cause
Thread does not hold
Has the product been repaired?
Yes
What did you do to repair it?
Corrected polarity on PSU and suggested different PSU purchased to eliminate the "sometimes jerky operation". Wire soldered to make light reliable.
Reparability of product (1 = difficult, 10 = easy)
3