This article applies to:

xTool S1 with all laser modules.

Issue Description

If S1 won't power on, please follow the instructions below to troubleshoot.

Solution

#1 Reset the Emergency Stop Switch

When the emergency stop switch is pressed, the machine will be disconnected from the power supply.

If it is pressed, please turn it clockwise to reset it.

#2 Check the SD Card

When the SD card is faulty, the indicator on the main control board will be on. But the LED strip on the front and rear plate, and the red cross light of the laser module will be off. This may appear as if the machine is not powered on.

Try the following to determine if the SD card has to do with it:

1. Take off the SD card and see if the machine is back to normal.
2. Put it back into the machine and see if the machine gets non-responsive again.
3. If so, the SD card is causing the issue and may need to be replaced.
4. Additionally, if you'd like to dig into the SD card, here are something you can try:
5. Check the appearance of the SD card.
   1. See if the card is in good shape
   2. See if the pins are deformed.
6. Get a multimeter and switch it to buzz mode.
7. Get the probes and test the two pins shown in the photo.
8. If the buzzer goes off, the SD card is likely to be short-circuited.

You can replace the SD card according to the video guide below:

Note: The SD card needs to be in FAT32 format and less than 32G. Third-party SD cards are not tested and may not be compatible with the machine. 

#3 Check the Power Adapter

Check if the indicator on the power adaptor is bright and solid. If not, the adapter can be faulty.

Get a multimeter. Check if the adaptor's output voltage is about 25V. If not, it needs to be replaced.

#4 Check the Main Control Board

The Control Board Resistor

In some cases, the resistor on the control board may fall off during transportation.

Please check if the black resistor circled in the photo is missing.

If yes, the main control board needs to be replaced.

The Voltage Readings (1)

1. Connect the power adapter to the main control board.
2. Turn on the main control board.
3. Switch the multimeter to AC voltage mode.
4. Put the probes on the pins circled in the photo below.
5. Check if the voltage reading is around 3.2V~3.3V.
6. If not, the main control board is faulty and needs to be replaced.

Note: The control board has a layer of conformal coating, which may affect the readings of the multimeter. Please make sure the probes are in contact with the pins properly for accurate results.

The Voltage Readings (2)

Switch the multimeter to buzz mode.

Put the probes on the pins circled in the photo below. 

If the multimeter buzzes, the main control board has a short circuit and needs to be replaced.

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