JUKI SC-320 - Fails to Perform Reverse Feed Stitching; Automatic Reverse Feed Stitching Fails; One-Touch Type-Reverse Feed Does Not Operate

UJ
Operation
Trouble
What to check
Repair
Reverse
feed.
5—1 Fails to perform reverse feed
stitching.
A) Automatic reverse feed
stitching fails; one-touch
type reverse feed does not
operate.
AUTO
ff
o Check for unplugged
connector.
P49 (12P)
(T) Is the reverse feed solenoid resistance correct?
The resistance between connector P49 7 and 8 should be about
5 Q.
Yes
CD Is a reverse feed signal being output?
Confirm that the monitor LED (BT)on the main circuit board light up.
Yes
)
No^ Replace solenoid.
No.
Replace PSC box or replace control box.
Replace BT transistor circuit board.
From the library of: Superior Sewing Machine & Supply LLC