Symptoms When There Are Poor Connections - Brother RH-9820 Service Manual

8. ELECTRICAL MECHANISM

8-4-2. Symptoms when there are poor connections

This divides the functions of the connectors into five sections, but some connectors have more than one function, so be sure
to refer to the trouble symptoms in other sections too.
Feed mechanism
• The feed mechanism operates briefly but does not detect
the home position correctly.
• [E200] or [E210] is displayed.
• Problems with feed mechanism moving forward and back.
• [E210] or [E211] is displayed.
• Problems with feed mechanism moving to the left and right.
• [E200] or [E201] is displayed.
• Feed motor does not operate.
• [E200] is displayed.
θ pulse motor mechanism
• The θ pulse motor operates, but the home position is not
detected correctly.
• [E220] is displayed.
• The θ pulse motor does not operate.
• [E220] or [E221] is displayed.
203
Trouble symptom
Trouble symptom
Connector No. and position
Connector No. and position
RH-9820
5241Q
4708Q
4709Q
4710Q
0755B
0756B