Control Circuit Board - Brother S-7200B Service Manual

Single needle direct drive straight lock stitcher with thread trimmer
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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
52

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