Brother LX-200, Service Manual

Page: 63 / 177

4-1
4.1 Safety Precautions
•
When conducting reassembly operations, place the unit on a grounded anti-static
sheet. LSI and other electronic components are sensitive to static electricity and
may be damaged if touched while charged.
•
Before transporting a circuit board, wrap it in a conducting sheet such as aluminum
foil.
•
When using a soldering iron or other heat-producing tool, ensure that heat does not
damage wires, circuit boards, or plastic parts such as covers.
•
Take care not to lose small screws or washers removed when replacing parts.
•
Tighten all screws to the torque specified in the table below.
4.2 Table of Tightening Torque
Name of Screw Qty. Screw Size Tightening Torque See
Page
Leaf switch (SW) C screw 1 SCREW FLANGED2.6
×
8 0.196 to 0.392N•m 4-2
ENC sensor screw 1 TAPTITE,BIND B M2.6
×
6 0.196 to 0.392N•m 4-2
Side chassis screw 6 TAPTITE,CUP M3
×
5 0.49 to 0.686N•m 4-3
TC/LF motor screw 2 SCREW,BIND M3
×
6 0.49 to 0.686N•m 4-4
Leaf switch Y screw 1 PAN-HEAD MACHINE SCREW M2.6
×
8 0.196 to 0.392N•m 4-5
TC/LF motor screw 1 TAPTITE,CUP M3
×
6 0.49 to 0.686N•m 4-6
LF motor screw 1 TAPTITE,CUP M3
×
16 0.49 to 0.686N•m 4-6
X-cutter screw 2 TAPTITE,CUP M 3
×
5 0.49 to 0.686N•m 4-10
Leaf switch screw 1 TAPTITE,PAN B M2
×
6 0.196 to 0.392N•m 4-10
Sensor holder screw 1 TAPTITE BIND B M2.6
×
6 0.686 to 0.882N•m 4-10
Paper eject roller screw 1 TAPTITE,CUP M3
×
5 0.49 to 0.686N•m 4-14
Y-CA sensor screw 1
TAPTITE,BIND B M2.6
×
6
0.196 to 0.392N•m 4-19
Sensor holder screw 1
TAPTITE,BIND B M2.6
×
6
0.196 to 0.392N•m 4-19
Sensor frame screw 2
TAPTITE,CUP M3
×
5
0.49 to 0.686N•m 4-22, 32
Y-CA motor screw 2
SCREW,FLANGED M2.6
×
5
0.196 to 0.392N•m 4-25
Y-CA pulley holder screw 1
TAPTITE,CUP M3
×
5
0.49 to 0.686N•m 4-25
Y-CA frame screw 2
TAPTITE,CUP M3
×
5
0.49 to 0.686N•m 4-26
Leaf switch TRI screw 1
TAPTITE,PAN B M2
×
6
0.196 to 0.392N•m 4-27
Paper guide screw 1
SCREW,BIND M3
×
6
0.49 to 0.686N•m 4-27
Leaf switch TRG screw 1
PAN-HEAD MACHINE SCREW M2.6
×
8
0.196 to 0.392N•m 4-27
T-chassis unit screw 2 TAPTITE,CUP M3
×
5 0.49 to 0.686N•m 4-28
Plate spring screw 1
TAPTITE,CUP M3
×
5
0.49 to 0.686N•m 4-28
Switch PCB screw A 2 TAPTITE,BIND B M3
×
12 0.49 to 0.686N•m 4-29
Switch PCB screw B 3 TAPTITE,BIND B M3
×
14 0.49 to 0.686N•m 4-29
Jack PCB screw 1 TAPTITE,BIND B M 3
×
8 0.49 to 0.686N•m 4-30
Main PCB screw 4 TAPTITE,BIND B M3
×
8 0.49 to 0.686N•m 4-30
Cassette holder screw 4 TAPTITE,CUP B M4
×
12 0.98 to 1.176N•m 4-31
Bottom cover screw B 2 TAPTITE,BIND B M3
×
8 0.49 to 0.686N•m 4-31
Slide plate screw 1 TAPTITE,BIND B M3
×
8 0.49 to 0.686N•m 4-34
Slide plate spring screw 1 SCREW,FLANGED M2.6
×
5 0.196 to 0.392N•m 4-34