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Brother HE-800B Service Manual Page 148

Electronic direct drive lockstitch button holer.
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Error status #16 Upper shaft motor does not operate during sewing.
Probable causes
1. If "E111", "E130", "E131", "E132" or
"E133"
is
displayed
sewing machine operates, there is
a
poor
connection
synchronizer.
2. If error E111, E130, E131, E132 or
E133 is displayed after the sewing
machine operates, there is a poor
connection of the upper shaft
motor.
3. If "E111", "E130", "E131", "E132" or
"E133"
is
displayed
sewing
machine
interference is causing operating
errors.
4. If "E111", "E130", "E131", "E132" or
"E133"
is
displayed
sewing machine operates, there is
a malfunction of the motor PCB.
5. If error E111, E130, E132 or E133
is
displayed
after
machine
operates,
malfunction of the motor PCB or of
the upper shaft motor.
6. If "E121" is displayed after the
sewing machine operates, there is
a malfunction of a component.
139
Check that connectors P11 (RESOLVER) and P1
after
the
(MT-ENC) of the motor PCB and connector P6
(MT-ENC) of the main PCB are inserted.
of
the
Check the connection of the relay connector
between the upper shaft motor and the motor
PCB.
Check that the ground wire is securely connected
after
the
and that the sewing machine is not close to any
operates,
equipment
interference.
Refer to steps 1 to 4 in #5.
after
the
If an error occurs after inspection steps 1 to 4
the
sewing
above have been carried out, there is a
there
is
a
malfunction of the machine motor.
1) If the area around the motor is not warm,
refer to inspections 1 to 5 in #16.
2) If the area around the motor is warm, turn the
pulley by hand and check that it is not stiff. If
it is stiff, adjust while referring to "6-8. Upper
shaft and tension pulley mechanisms". If it is
not stiff, there is a malfunction of the machine
motor.
Check/ repair/ adjust
that
generates
strong
HE-800B
9. ELECTRIC MECHANISM
Parts to be replaced
electrical
Resolver stator assembly
Motor PCB assembly 800B
Motor 800 assembly
Resolver stator 800 assembly
Motor PCB assembly 800B
Motor 800 assembly

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Troubleshooting

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