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8. ELECTRICAL MECHANISM
111
BAS-311G, BAS-326G
8-2. Inside the control box and operation panel structure
Main P.C. board
Secured to the side. This is the P.C. board that controls sewing machine operation.
PMD P.C. board
Secured to the base plate. This P.C. board drives the pulse motors and solenoids.
Power supply motor P.C. board
Secured to the rear. This P.C. board generates the voltages that are required for control, and drives the main shaft motor.
There are 8 fuses on this P.C. board.
DC fan motor
This fan cools the inside of the control box.
The filters at the air intake slots in the cover and base plate should be cleaned about once a month.
Conversion transformer (Two types are used depending on the power supply voltage specifications.)
This breaks down the power supply voltage into the voltages that are required for control operations.
NF P.C. board (European destinations only)
This eliminates the electrical interference that is generated by the power supply fan.
Panel P.C. board
Secured to the inside of the operation panel. This P.C. board is used for displaying the sewing machine status and for input
operations.
Control box
Operation panel
DC fan motor
NF P.C. board
Power supply
motor P.C. board
Main P.C. board
Conversion
transformer
PMD P.C. board
Panel P.C. board
4588Q 5071Q