5 - 4
Failure Investigation for Electronic Parts Pulse motors do not return to starting point
Replace pulse motor
Replace NP PCB-S assy.
Is the resistance across pins 1-2
and pins 3-4 for the pulse motor
connectors 4-6 W?
Motors do not return to starting
point when power is turned ON.
• Needle up ... Z pulse motor return
to starting point
• Needle down ... F pulse motor
returns to starting point
Regardless of the needle position
does this same pulse motor return
When the power PCB assy. connector
(connected to CN13 (S2) or CN14 (S3)
on main PCB assy.) is disconnected, is
the voltage across pins 4-3 26V DC?
N
Y
Replace power PCB assy.
N
Y
N
Y
S2 : CS8000 Series
S3 : CS8100 Series
Replace main PCB assy.
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Summary of Contents for CS8000 Series
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Page 22: ...2 2 Main partslocation diagram Main unit www promelectroavtomat ru ...
Page 38: ...2 18 Upper shaft mechanismlocation diagram Main unit www promelectroavtomat ru ...
Page 45: ...2 25 Disassembly Thread tension mechanismlocation diagram Main unit www promelectroavtomat ru ...
Page 53: ...2 33 Disassembly Thread hook mechanism location diagram Main unit www promelectroavtomat ru ...
Page 56: ...2 36 Needle presser module breakout diagram Modules www promelectroavtomat ru ...
Page 65: ...2 45 Disassembly Feed module breakout diagram Modules www promelectroavtomat ru ...
Page 74: ...3 2 Thread tension mechanism location diagram Main unit www promelectroavtomat ru ...
Page 85: ...3 13 Assembly Thread hook mechanism location diagram Main unit www promelectroavtomat ru ...
Page 88: ...3 16 Upper shaft mechanism location diagram Main unit www promelectroavtomat ru ...
Page 115: ...3 43 Assembly Main parts location diagram Main unit www promelectroavtomat ru ...
Page 120: ...3 48 Needle presser modulebreakout diagram Modules www promelectroavtomat ru ...
Page 136: ...3 64 Feed module breakout diagram Modules www promelectroavtomat ru ...
Page 201: ...6 1 6Repair Manual www promelectroavtomat ru ...
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