1.The machine moves normally, but the laser head does not light
1）Check the main board and the laser module on the power and signal cable connection is loose.
2）If the wire connection is correct, but still no light light. Please unplug the laser module wire and
adjust the laser brightness to "Max Brightness" in LaserGRBL, then measure the "POWER" and "PWM"
voltage respectively. voltage. If there is voltage at both "POWER" and "PWM", the laser module is the
problem.
2.USB not recognized
1）Check if the driver is already installed on the computer, if not, please click "Tools-Install CH340
Driver" to install it.
2）Please check if the baud rate setting on the software is correct. (Baud rate is 115200)
3）Please try to replace the USB cable or computer.
4）If the above methods do not solve your problem, please contact us.
3.Power on the device does not respond
1）If the power indicator does not light up, please check if the power supply wiring is loose.
2）If the power terminal is well wired, please measure the voltage at the output of the power adapter.
＄33=1:Turn on the gyroscope
＄33=0:close the gyroscope
＄140:set the sensitivity of gyroscope, the sensitivity range is 1-16, when ＄140=1, the sensitivity is the
highest, when ＄140=16, the sensitivity is the lowest.
＄E:Restore factory setting
Note: You can input the above command in the command field to set.
Troubleshooting
Software Installation Guide
12
13
2.Explanation of common codes
