Name: Brother LX27NT
Brand: Brother
Rating: 5 (1 reviews)

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Failure Investigation

for Electronic Parts

Failure Investigation for Electronic Parts

Failure Investigation

for Electronic Parts

5 - 2

Sewing lamp does not light

Sewing lamp does not light.

Replace the motor 3P supply assy.

Replace the foot controller.

Replace the LED lamp assy.

When unplug the foot controller plug

from the socket of the machine, is the

voltage between pins A of the plug 108

to 132V AC? (for 120V AC countries) *

Connect it properly.

Is the LED lamp assy connector

connected to the power supply

PCB (CN2) correctly?

* Refer to Fig. 1.

* Refer to Fig. 2.

Fig. 2

When disconnect the LED lamp assy

connector from the power supply PCB

(CN2), is the voltage between pins 1

and 2 at CN2 10 to 12V DC?

* Refer to Fig. 2.

CN2

Power supply PCB

LED lamp lead wire

Rear cover

Front cover

*1 For 220 to 240V AC countries : 198 to 264V AC

Fig. 1

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Brother LX27NT Specifications

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