Brother S-7300A Service Manual page 191

Problem
27 Machine does not operate
when power is turned on
and treadle is pressed.
28 Machine does not operate
at high speed.
29 Machine stops
sewing.
30 Nothing appears on the
operation panel display.
31 "Grease up" flashes in the
panel display when the
power switch is turned on.
Is the power supply connector
・
disconnected from the control
box?
Insert
securely.
Is the operation panel set to a
・
screen other than a screen
where sewing is possible?
Switch
panel to a screen where
sewing is possible, such
as the home screen.
Is the sewing speed setting or backtack stitch speed setting too
・
slow?
Set a higher sewing speed.
during
Has the sewing pattern been set to a fixed stitch pattern?
・
In main sewing mode, set the sewing pattern to something
other than a fixed stitch pattern.
Is the power supply voltage too low?
・
Check the power supply voltage.
(If the power cord is too long or too many appliances are being
run from a single outlet, this may cause voltage drops which will
in turn cause the reset function to activate and stop the
machine, even if the power supply itself is normal.)
Is the power supply connector
・
disconnected from the control
box?
Insert
securely.
・ Is the operation
connector inside the control
box disconnected?
Insert
securely.
・ This display is to notify you that it is time to apply grease.
Apply grease.
Possible cause
the connectors
the operation
the connectors
panel
the connectors
S-7300A
11. TROUBLESHOOTING
Page
Instruction
manual
0924D
Instruction
manual
Instruction
manual
Instruction
manual
Instruction
manual
0924D
Instruction
manual
Instruction
manual
0925D
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