Brother BAS-311E Manual De Propietario

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BAS-311E.311EL.326E.326EL
Chapter 7
#3
After a few 
seconds 
after the 
R/W switch 
is pressed, 
an error 
code 
appears.
#4
The work 
clamp does 
not move 
up and 
down 
when the 
foot switch 
is stepped 
on.
 Probable causes
1.  With error code [E.40], a floppy 
disk is not inserted.
2.  With error code [E.41] or [E.4F], 
the floppy disk is defective.
3.  Panel circuit board defective
1.  Foot switch and code defective
2.  Any cord in the control box is 
defective.
3.  Fuse blown
Check/repair/adjust
• When a floppy disk is inserted into the FDD, check 
the sound of the motor.
• When error code [E.40], [E.41], or [E.4F] appears, 
insert other floppy disk into the FDD.
If the FDD reads the floppy disk, the original disk 
is defective.
(Make sure that the power is turned off.)
• Remove the connector for foot switch connected 
to the outside of the control box, and check the 
continuity between pins 1 and 2, and pins 7 and 8 
in the connector on the cord.  (For pneumatic 
specification, check the continuity between pins 3 
and 4.)
The continuity in each case should be normally 
∞ 
Ω or 0 Ω when the switch is stepped on.
• Insert the connector checked above, open the 
control box, and check the continuity between 
pins 1 and 2, pins 3 and 4, pins 5 and 6 in 
connector P19 (FOOT) on the PCB.
(Without removing the connector, put a tester 
from the lead side.)
The continuity in each case should be normally 
∞ 
Ω or 0 Ω when the switch is stepped on.
• Remove fuse no.1 and check the continuity.
(If there is no continuity, go to the next item.)
Parts to be replaced
Drive device
Floppy
Panel circuit 
board
Foot switch
Foot switch code 
assembly
(Quick melting 
type 5A-250V
Error status
1 - 2 Presser foot
Connector on the cord
7 - 8 Start
3 - 4 Second switch Presser
(Pneumatic only)
Presser
foot
Start
Second switch
Presser
(Pneumatic only)