Brother BAS-311E Service Manual page 114

Chapter 7
Error status Probable causes
1. With error code [E.40], a floppy
disk is not inserted.
#3
After a few
seconds 2. With error code [E.41] or [E.4F],
after the
the floppy disk is defective.
R/W switch
is pressed,
an error
code
appears.
3. Panel circuit board defective
1. Foot switch and code defective
1 - 2 Presser foot
7 - 8 Start
3 - 4 Second switch Presser
(Pneumatic only)
#4
2. Any cord in the control box is
The work
clamp does
defective.
not move
up and
down
when the
foot switch
is stepped
on.
Start Presser
foot
3. Fuse blown
106
• When a floppy disk is inserted into the FDD, check
• When error code [E.40], [E.41], or [E.4F] appears,
• Remove the connector for foot switch connected
Connector on the cord
• Insert the connector checked above, open the
Second switch
Presser
(Pneumatic only)
• Remove fuse no.1 and check the continuity.
BAS-311E.311EL.326E.326EL
Check/repair/adjust
the sound of the motor.
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.)
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
or 0 when the switch is stepped on.
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
or 0 when the switch is stepped on.
(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