5 - 9
Electronic Parts
Failure Investigation for Electronic Parts Cannot sew pattern well
Replace NP F2 PCB assy.
Normal pattern is not generated
When the upper shaft pulley is slowly
turned by hand, does the voltage
between pins 4 & 1 and pins 5 & 1 on the
main NF3D PCB assy. vary 0 – 5 V DC?
N
Adjust the attachment of the
needle-presser module
N
Replace main NF3D PCB assy.
Y
Y
With the power OFF, can you lightly
move the needle bar left and right by
hand?
Replace pulse motor
N
Y
Is the resistance between pins 1 & 2
and pins 3 & 4 on the Z pulse motor
and F pulse motor connectors 4 – 6
Ω
?
Содержание BLMY
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Страница 19: ...1 8 ...
Страница 21: ...2 2 Main parts location diagram Main unit ...
Страница 30: ...2 11 Disassembly Electrical parts and motors location diagram Main unit ...
Страница 37: ...2 18 Thread tension mechanism location diagram Main unit ...
Страница 43: ...2 24 Bobbin winder mechanism location diagram Main unit ...
Страница 46: ...2 27 Disassembly Rotary hook drive mechanism Feed and bobbin mechanism Cutter assy location diagram Main unit ...
Страница 49: ...2 30 Needle bar presser mechanism Upper shaft mechanism location diagram Main unit ...
Страница 53: ...2 34 Needle presser module breakout diagram 78 Modules ...
Страница 66: ...2 47 Disassembly Feed and bobbin module breakout diagram Modules ...
Страница 75: ...2 56 Thread cutter module breakout diagram Modules ...
Страница 79: ...2 60 ...
Страница 81: ...3 2 Needle bar presser mechanism upper shaft mechanism location diagram Main unit ...
Страница 86: ...3 7 Assembly Rotary hook drive mechanism Feed and bobbin mechanism Cutter assy location diagram Main unit ...
Страница 90: ...3 11 Assembly Bobbin winder mechanism location diagram Main unit ...
Страница 94: ...3 15 Assembly Thread tension mechanism location diagram Main unit ...
Страница 102: ...3 23 Assembly Electrical parts and motors location diagram Main unit ...
Страница 109: ...3 30 Main parts location diagram Main unit ...
Страница 120: ...3 41 Assembly Needle presser module breakout diagram 78 Modules ...
Страница 139: ...3 60 Feed module breakout diagram Modules ...
Страница 155: ...3 76 Thread cutter module breakout diagram Modules ...
Страница 161: ...3 82 ...
Страница 191: ...4 30 ...
Страница 217: ...5 26 Failure Investigation for Electronic Parts Error is displayed F09 is displayed Replace the main NF3D PCB assy Y ...
Страница 226: ......