Brother International BES-916AC Instruction Manual - English - Page 151

ERROR E5 to ERROR FF frequently, Wiper solenoid does not operate.

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Chapter 10 Troubleshooting Symptom Measures ERROR E5 to ERROR FF frequently • Replace the main PCB with a new one. occur. All solenoids of head do not operate. • Refer to the block diagram showing cable connections and check fuse F2 on the power supply PCB. If it is blown, replace it with a new one. The 60v 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 185Ω. 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. • Replace the head PCB with a new one. Wiper solenoid does not operate. • Check to see if connection from the wiper solenoid to connector P11 of the head PCB is proper. • Check the resistance value of the wiper solenoid which does not operate with the connector section. The normal resistance value is approximately 28Ω. 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. • Replace the head PCB with a new one. Pickker solenoid does not operate. • Check to see if connection from the pickker solenoid to connector P8 of the head PCB is proper. • Check the resistance value of the pickker solenoid which does not operate with the connector section. The normal resistance value is approximately 426Ω. 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. • Replace the head PCB with a new one. Thread trimmer solenoid does not operate. • Check to see if connection from the thread trimmer solenoid to connector P20 of the main PCB is proper. • Check the resistance value of the thread trimmer solenoid which does not operate with the connector section. The normal resistance value is approximately 27Ω. If it is faulty, replace the solenoid with a new one. In this case, the main PCB may also be faulty. Also replace the main PCB with a new one if it does not operate properly even after replacing the solenoid. • Replace the main PCB with a new one. BES-916AC • BES-1216AC 149

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BES-916AC • BES-1216AC
149
Chapter 10
Troubleshooting
Symptom
Measures
ERROR E5 to ERROR FF frequently
occur.
•
Replace the main PCB with a new one.
All solenoids of head do not operate.
•
Refer to the block diagram showing cable connections and check fuse
F2 on the power supply PCB.
If it is blown, replace it with a new one.
The 60v 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 185
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.
•
Replace the head PCB with a new one.
Wiper solenoid does not operate.
•
Check to see if connection from the wiper solenoid to connector P11 of
the head PCB is proper.
• Check the resistance value of the wiper solenoid which does not
operate with the connector section.
The normal resistance value is
approximately 28
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.
•
Replace the head PCB with a new one.
Pickker solenoid does not operate.
•
Check to see if connection from the pickker solenoid to connector P8
of the head PCB is proper.
• Check the resistance value of the pickker solenoid which does not
operate with the connector section.
The normal resistance value is
approximately 426
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.
•
Replace the head PCB with a new one.
Thread trimmer solenoid does not
operate.
• Check to see if connection from the thread trimmer solenoid to
connector P20 of the main PCB is proper.
•
Check the resistance value of the thread trimmer solenoid which does
not operate with the connector section.
The normal resistance value is
approximately 27
Ω
.
If it is faulty, replace the solenoid with a new one.
In this case, the
main PCB may also be faulty.
Also replace the main PCB with a new
one if it does not operate properly even after replacing the solenoid.
•
Replace the main PCB with a new one.