BES-941BC • BES-1241BC
175
Chapter 10 Troubleshooting
Only a certain head does not oper-
ate.
• Is the head out of action with either the head switch or the machine
controller?
• Refer to the block diagram showing cable connections and check to
see that other cables are connected to the head switch PCB and the
head PCB and the head PCB properly.
Jump solenoids and wiper solenoids
of all heads do not operate.
• Refer to the block diagram showing cable connections and check to
see if connection from connector P4 of the power supply PCB in the
control box to connector P6 of the power supply PCB in the power
supply base, and connection from connector P5 of the power supply
PCB in the power supply base to the 39 terminal of the power
transformer are proper.
• Check fuse F4 on the power supply PCB in the power supply base.
If it is blown, replace it with a new one. The 50v circuit is faulty if the
fuse is blown immediately after turning on the power even after
replacing the fuse.
Jump solenoid does not operate.
• Check to see if connection from the jump solenoid to connector P10 of
the head PCB is proper.
• Check the resistance value of the jump solenoid which does not operate
with the connector section. The normal resistance value is
approximately 56
Ω
.
If it is faulty, replace the solenoid with a new one. In this case, the
head PCB may also be faulty. Also replace the head PCB with a new
one if it does not operate properly even after replacing the solenoid.
• Refer to the block diagram showing the cable connections and check
to see if connection from connector P12 of the head PCB to connectors
P7, 8, 13, 14, 15, and 16 on the power supply PCB in the control box is
proper.
• Replace the head PCB with a new one.
Y-axis motor overcurrent stop oc-
curs.
• Measure the resistance values of pin 1 and pin 2, pin 2 and pin 3, pin 3
and pin 4, pin 4 and pin 5, and pin 5 and pin 1 at each connector
section of the Y-axis motor with the tester and check to see if they are
approximately 2.4
Ω
.
Replace the faulty motor with a new one.
• Refer to the block diagram showing the cable connection and check to
see if connection from the Y-axis motor to the main PCB is proper.
• Replace the main PCB with a new one.
The following errors frequently occur.
• Lower shaft memory error
• ERROR E5 to ERROR FF
• Replace the main PCB with a new one.
Symptom
Measures
Содержание BES-1241BC
Страница 7: ...5 BES 941BC BES 1241BC 2 1 7 1 6 3 4 5 7 3 2 Belt cover Finger guard BES 941BC ...
Страница 13: ...11 BES 941BC BES 1241BC Setting of thread breakage sensor page 94 Setting of Machine page 97 ...
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Страница 19: ...Chapter 1 Preparation of Embroidery Machine ...
Страница 50: ...Chapter 1 Preparation of Embroidery Machine BES 941BC BES 1241BC 48 ...
Страница 60: ...BES 941BC BES 1241BC 58 Chapter 2 Embroidering Procedures ...
Страница 125: ...Chapter 6 Operation of Machine ...
Страница 136: ...Chapter 6 Operation of Machine BES 941BC BES 1241BC 134 ...
Страница 137: ...Chapter 7 Maintenance ...
Страница 148: ...Chapter 7 Maintenance BES 941BC BES 1241BC 146 ...
Страница 149: ...Chapter 8 Standard Adjustment ...
Страница 161: ...Chapter 9 List of Error Messages ...
Страница 166: ...BES 941BC BES 1241BC 164 Chapter 9 List of Error Messages ...
Страница 179: ...Connection and Installation of Optional Equipment ...
Страница 182: ...INSTRUCTION MANUAL BROTHER INDUSTRIES LTD NAGOYA JAPAN Printed in Japan 155 941 C41 S93941 002 1999 09 H 1 ...