Control Circuit Board - Brother S-7200B Service Manual

10-3. Control circuit board

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet
before opening the face plate of the control box. Touching areas where high voltages are present can result in
severe injury.
<Name and function of each part>
CN18 Head detector unit connector
CN12 Solenoid-type presser lifter connector
CN13 Sewing machine connector
CN4 Synchronizer connector
CN5 Operation panel connector
CN7 Relay connector
CN8 Coupler connector
CN1 Control power supply connector
Connectors
CN2 Treadle connector
CN3 Standing operation connector
CN15 Puller connector
CN11 Option connector 1
CN6 Option connector 2
CN9 Option connector 3
CN10 Cooling fan power supply connector
CN16 Thermistor connector
DANGER
Connect to sewing machine connectors.
Connect to power supply circuit board connectors.
Connect to transformer connectors.
Connect to treadle unit connector.
Connect to plug (sold separately) for standing operation
Connect to solenoid for puller or other device.
Connect to sewing speed actuator.
For input/output signals used by external devices
Connect to stitch counter actuator.
Only used for three-phase high-voltage specifications.
Connect to shorted connector when not using three-phase
high-voltage specifications.
S-7200B
10. CONTROL BOX AND MOTOR
0657B
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