Brother NX-200 User manual

GENERAL INFORMATION
This service manual has been compiled for explaining repair procedures of this MODEL.
This was produced based on up-to-date product specifications at the time of issue, but there may have been
changes of specifications for the purpose of improvements.
Contact manufacturer or local sales company for information concerning such changes.
Brother Industries, Ltd.
Nagoya, Japan
CAUTION
1. Always use rubber gloves when handling printed circuit boards and never touch the metal portion of a printed
circuit board with bare hands.
2. Keep your body earthed in order to avoid generating static electricity.
3. Pack printed circuit boards in aluminum foil and avoid subjecting them to any form of impact during storage or
transportation.
4. Do not touch or damage the metal portion of a printed circuit board with a screwdriver or any other tool while
making repairs or the like.
CONTENTS
2.Disassembly 2-1
Main parts
Front cover disassembly (operation PCB assy disassembly) 2-2
Needle-presser module
Presser foot lifter removal 2-3
3.Assembly 3-1
Main parts
Front cover assembly (assembling the operation PCB holder) 3-2
Needle-presser module
Presser foot lifter attachment 3-3
4.Ajustment 4-1
Test Mode 4-2

2 - 1
2Disassembly

2 - 2
Main unit Main parts
8 Front cover disassembly (operation PCB assy disassembly)
1. Remove the screws 1(four) and remove the operation PCB assembly 1,
rubber keys 2, key top rear plate 3and VR key tops 4(two).
1
11
43
2
2-6

2 - 3
Modules Needle-presser module
22 Presser foot lifter removal
1. Remove retaining ring E4.
2. Remove the presserlift shaft 1, presserfoot lifter2. and washers (two).
3. Remove retaining ring E4 fromthe presserlift shaft 1.
21
2-37

2 - 4

3 - 1
3Assembly

3 - 2
Main unit Main parts
9
Front cover assembly (assembling the operation PCB holder)
1. Attach the rubber keys 1to the operation PCB holder 2.
2. Attach the VR key tops 3(two) and key top rear plate 4to the operation
PCB holder 2.
•Attach the operation F0 PCB assy. 5using the screw 1(four).
1Torque
0.57 – 0.78 N·m
3
1
1
1
5
42
Taptite, Bind B
M3X8
Color; Gold
3-35

3 - 3
Modules Needle-presser module
13 Presser foot lifter attachment
1. Attach retaining ring E4 to the presser lift shaft 1.
2. Apply a small amount of Molykote EM30L to the presserlift shaft 1.
3. Insert the presser lift shaft 1into the hole 2in the thread releaser assy.
and attach the washers (two). and presserfoot lifter3.
4. Attach retaining ring E4 to the presser lift shaft 1.
Apply Molykote EM30L grease to the operating
surface of the presser lifter shaft presser foot
lifter. Small amount
Apply Molykote EM30L grease to the operating
surface of the presser foot lifter presser bar
clamp Small amount
1
2
Retaining ring E4
3
Retaining ring E4
Puttwowashersunder the presserfootlifter.
3-46

3 - 4