Pcb | Brother BES-941BC specification

Chapter 10 Troubleshooting

Symptom	Measures

X-axis or Y-axis home position de-	• Was the XY carriage moving?
tection error occurs.	If so, refer to the block diagram showing the cable connections and
	check to see if connection from the X and Y area sensor to the main
	PCB is proper.

•Was the XY motor rotating?

If so, check the XY carriage mechanism.

•If the XY motor is not rotating, refer to the cable connection block diagram and check to see if connection from the XY motor to the main PCB is proper.

The thread breakage error frequently	• Enter the CASE test mode and turn the thread breakage sensor pulley
occurs although thread is not broken.	corresponding to each needle bar of the head with which this error
	occurs while switching the needle bar from number 1 in ascending
	order and check to see that the red LED on the head blinks.
	If there is no problem, lower the thread breakage sensitivity value of
	the machine controller. (The standard value is 0.)
	• Check connection from the thread breakage sensor PCB to the head
	PCB if it does not blink.
	• Replace the thread breakage sensor PCB with a new one.

The X-axis motor connector connec-	• Refer to the block diagram showing the cable connections and check
tion error occurs.	the connection from the two X motors on the left and right to the main
	PCB.

The main shaft motor lock error oc-	• Enter the encoder signal mode and manually turn the main shaft pulley.
curs.	If it is abnormally heavy, the main shaft mechanism is faulty.
	• Does the main shaft motor rotate at all when the error occurs?
	If it does not rotate at all, check fuse F5 on the power supply PCB in
	the control box. Refer to the block diagram showing the cable
	connections and check to see if connection from the main shaft motor
	to the main PCB is proper. Also check connection of connectors P6
	and P4 of the main PCB and connectors P19 and P12 on the power
	PCB in the box, and connection from connector P11 of the power supply
	PCB to the 14v terminal of the power transformer.
	• Manually turn the main shaft pulley in the encoder signal test mode and
	check to see if the stop position signal and encoder signal are proper.
	If either of the signals does not change, refer to the block diagram
	showing the cable connections and check to see if connection from the
	encoder and stop position sensor to the main PCB is proper.

ERROR A7 occurs.	• Check the CPU ROM version for the upper shaft.
	If it is version A, replace it with the latest ROM of version B or later.
	(PROM#4 on the main PCB)

ERROR A8 frequently occurs.	• In the encoder signal test mode, manually turn the main shaft pulley
	and check to see that the stop position signal is correct.
	If the signal does not change, refer to the cable connection block
	diagram and check to see if connection from the stop position sensor
	to the main PCB is proper.

170	BES-941BC • BES-1241BC

BES-941BC specifications

The Brother BES-941BC is a cutting-edge embroidery machine that showcases the perfect blend of innovation and user-friendly design. Geared towards professional embroiderers and serious hobbyists alike, this machine is engineered to enhance productivity while ensuring top-quality results.

One of the standout features of the BES-941BC is its impressive embroidery area of 10.2" x 7.9", allowing users to work on larger projects without the hassle of constant repositioning. This spacious work area is complemented by an advanced, high-speed embroidery capability that can reach up to 1,000 stitches per minute, making it possible to complete intricate designs in a fraction of the time.

Incorporating state-of-the-art technology, the Brother BES-941BC features a color touchscreen interface that provides intuitive navigation through its extensive menu options. Users can easily select designs, customize colors, and preview their creations before starting the embroidery process. Additionally, this machine supports wireless connectivity, enabling effortless file transfers from a computer or mobile device.

The BES-941BC comes pre-loaded with a diverse selection of built-in embroidery designs and fonts, catering to a wide range of styles and preferences. For those who wish to personalize their projects further, the machine also supports USB connectivity, allowing users to import additional designs from external sources.

Another noteworthy characteristic is the machine's advanced thread trimming and auto needle threading functions. These features minimize manual intervention, allowing users to focus more on creativity and less on tedious tasks. Furthermore, the BES-941BC is equipped with automatic tension adjustment, ensuring consistent quality and reducing the risk of errors during intricate stitching.

With its robust construction and reliable performance, the Brother BES-941BC is designed to handle high-volume embroidery tasks, making it suitable for small businesses as well as individual crafters. The machine is backed by a comprehensive warranty and customer support, providing peace of mind for users.

In conclusion, the Brother BES-941BC stands out as a versatile and powerful embroidery machine. With its ample embroidery area, high-speed stitching capabilities, advanced technology features, and ease of use, it is ideal for anyone looking to elevate their embroidery projects to the next level. Whether you're creating custom apparel, promotional items, or personalized gifts, this machine offers the tools necessary for achieving professional-quality results.

Brother BES-941BC instruction manual Pcb

Models: BES-941BC

Symptom

PCB.

BES-941BC • BES-1241BC

BES-941BC specifications