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Brother BAS-311A Service Manual

Brother BAS-311A
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Connector No. and
location
Main
PCB
[PO
f I
P1
l J
1control
panel
PCBJ
Main
PCB
em]
· I Programmer
~
I
MainPCB
.J
IIP31
P7
II
86
I
Floppy
disk
I
Main
PCB
Qifl
~
~
r
,,2
1
T T
Xh
I . . h I
..
ome
position Y
ome
positiOn
I
PCB
PCB
i
Main
PCB
QCJ
Drive
signals and
source
+SV
Speed control signal
Key and switch signals
Indicator control
sig~ls
Read
and
write
signals
from/to
floppy
disks
X
andY
home
position
signals
EM
switch signal
LED
signal
Drive signal
Presser
plate
lifting
signal
Symptoms resulting
from
wrong
connection
The
POWER
lamp
does
not
come on.
Although
the
speed <ontrol dial is
turned,
the machine does riot change the
rotation
speed and keeps
it
at
2000
spm.
Malfunction
of
programming
device
The
floppy
disk data
cannot
be
read.
(Error No.4)
The machine
cannot
detect
home
position.
The emergency
stop
function
cannot
be
activated.
The
EMERGENCY
stop
lamp
lights
and
its
function
cannot
be canceled.
The machine
neither
starts
operation
nor
lifts
the
presser
plate
If
the
corresponding
foot
switch is depressed.
From the library of: Superior Sewing Machine & Supply LLC

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Brother BAS-311A Specifications

General IconGeneral
BrandBrother
ModelBAS-311A
CategorySewing Machine
LanguageEnglish

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