Brother International BES-116 Instruction Manual - English - Page 147

Pressor foot solenoid does not oper, Replace the main PCB with a new one.

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Chapter 10 Troubleshooting Symptom Measures 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. Pressor foot solenoid does not operate. • Check to see if connection from the pressor foot solenoid to connector P20 of the main PCB is proper. • Check the resistance value of the pressor foot solenoid which does not operate with the connector section. The normal resistance value is approximately 80Ω. If it is faulty, replace the solenoid with a new one. In this case, the main PCB may also be faulty. Also replace the mainPCB with a new one if it does not operate properly even after replacing the solenoid. • Replace the main PCB with a new one. BES-116AC 145

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BES-116AC
145
Chapter 10
Troubleshooting
Symptom
Measures
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.
Pressor foot solenoid does not oper-
ate.
•
Check to see if connection from the pressor foot solenoid to connector
P20 of the main PCB is proper.
•
Check the resistance value of the pressor foot solenoid which does not
operate with the connector section.
The normal resistance value is
approximately 80
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 mainPCB with a new
one if it does not operate properly even after replacing the solenoid.
•
Replace the main PCB with a new one.