Sewing Operation - Brother BAS-311E Service Manual

The work clamp does not operate.
(For BAS-311E solenoid type, there is no need to carry out wiring to
air valves.)

3. Sewing operation

The power lamp is not lit, and nothing operates.
Machine operation is unstable.
The power lamp is not lit, and nothing operates.
Machine operation is unstable.
The feed mechanism does not operate.
The work clamp and the presser foot do not operate.
Error [E.A1] appears.
The machine motor does not run.
Motor operation is unstable.
Needle up stop position is not correct.
Error [E.20] appears.
Error [E.22] appears.
The machine motor does not run.
Motor operation is unstable.
Needle up stop position is not correct.
Error [E.20] appears.
Error [E.22] appears.
The machine motor does not run.
Motor operation is unstable.
Needle up stop position is not correct.
Error [E.20] appears.
Error [E.22] appears.
Chapter 6 Power supply and electrical parts adjustment
BAS-311E.311EL.326E.326EL
Main PCB
Air valve
Power supply circuit board
Conversion transformer
Power switch
Power supply circuit board
Main PDB
Power supply circuit board
Main PDB
Power supply circuit board
Main PDB
Main PCB
Synchronizer
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