Brother International BE-1204C Stand Alone Type Instruction Manual - English - Page 176
Electrical
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Chapter 10 Troubleshooting Electrical Section Cautions • Be sure to turn off the power of the machine and unplug the power cord before checking cable connections. • When you check connection of the cables as instructed in this manual, also check connection and continuity between connectors. • Carry out items described in the "Measures" section in order of appearance. • Some checks and replacement works can be conducted only by repair people. In such cases, contact your dealer. Symptom The machine does not operate even if the power is turned on. The machine does not operate even if the power is turned on. The message, "Release stop SW to operate!", is displayed on the panel. An overtravel error occurs. The needle stop position error occurs. Measures • Is the power cord of the machine plugged in? → Plug in the power cord. • Is the connector at the side of the control box connected? → Connect it after checking the connector name. • Is the connector in the control box connected? → Connect it after checking the types and colors of the connectors. • Is the fuse on the PCB in the control box blown? → Replace the fuse with a new one. If the fuse is blown again, something is faulty. Check to see if the wiring is correct. Replace the control box with a new one. • Is the stop switch turned on? → Reset the stop switch. • Is the frame within the cap frame area? → Move the frame within the cap frame area and turn on the power. • Check to see if the signal of the X area sensor turns ON and OFF in PORT test mode. → When the signal does not change, refer to the block diagram showing the cable connections and check to see if connection from the X area sensor to the main PCB is proper. Replace the X area sensor with a new one. • Is the pulley manually turned and out of the stop angle? → Turn the pulley, adjust the needle at the stop position, and reset the error. • Check the signal of the stop position sensor in the encoder test mode. → Refer to the adjustment or cable connection block diagram and check connection from the needle position detention sensor to the main PCB. Replace the needle position detection sensor with a new one. 10-4 BE-1204B-BC • BE-1206B-BC