{"id":8541,"date":"2018-03-21T10:32:29","date_gmt":"2018-03-21T15:32:29","guid":{"rendered":"https:\/\/jtechphotonics.com\/?page_id=8541"},"modified":"2025-06-13T15:42:38","modified_gmt":"2025-06-13T21:42:38","slug":"troubleshooting-faq","status":"publish","type":"page","link":"https:\/\/jtechphotonics.com\/?page_id=8541","title":{"rendered":"Troubleshooting"},"content":{"rendered":"\n

Welcome to the official troubleshooting guide for J Tech Photonics lasers. Whether you’re using our 7W+ for photo engraving or our high-power 64W 3-in-1 for fast cutting, this guide helps resolve common issues quickly and safely.<\/p>\n\n\n\n

All tips apply to current products using the Safety Interface Board<\/strong>. For installation help, visit the Laser Manuals page<\/a> or the Instructions Page<\/a> for Specific CNC Installations.<\/p>\n\n\n\n

We test every laser bundle that leaves the shop here, but sometimes things happen in life and can go wrong.  Also, sometimes getting everything all working together with the hardware and software can be a bit of a challenge.  Here are a list of some of the top questions we get with both the hardware and software.  Hopefully this can help along the process of getting your laser set up on your machine and working smoothly.<\/p>\n\n\n\n

Initial Setup Troubleshooting:<\/h2>\n\n\n\n

I just unwrapped my package.\u00a0 What are the connectors on the back of the Safety Interface?<\/h3>\n\n\n\n

Great!\u00a0 You just got your laser.\u00a0 First things first, we recommend if you are going to test your laser\u00a0before you put it on your machine, make sure you DO NOT have it pointed in a direction that can cause harm to anyone or anything and always use the proper safety goggles.\u00a0 That being said, your laser will attach to the farthest Mini Fit Jr. Connector on the edge of the laser driver in port H3.\u00a0 You will have the 4 pin molex extension cable run through your CNC machine. The following picture will show this:<\/p>\n\n\n

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-Plug the input mini fit Jr. molex connector from your mounting kit in terminal H4.\u00a0 If you have your own input signal cable, then put it in screw terminal H2.
-Plug the wall power adapter into the bullet style power connector.
-If you have a remote reset cable, it goes into the JST port on the far right.<\/p>\n\n\n\n

I plugged in the laser driver wall adapter, turned the key, and pushed the power switch and nothing happens.  What now?<\/h3>\n\n\n\n

First, you need to turn the keyswitch to the right and then you need to press the red reset button on the front of the laser driver.\u00a0 This will enable the interlock circuit and allow the laser driver to turn on. You should hear a “click” sound with the interlock engaging. If you then turn on the power switch, you should see the left LED go green and both the driver and laser fans should start to spin.\u00a0 If the mode selector switch in the front is to the right (like in the picture) the laser should be OFF as well.<\/p>\n\n\n

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If your Safety Interface has a fan on it, then it should start spinning. Here is everything you should see when it is working properly.<\/p>\n\n\n\n

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  1. Fan is spinning on the Safety Interface Board (if you have one) and on the laser.<\/li>\n\n\n\n
  2. Green LED is lit on the LEFT led.<\/li>\n<\/ol>\n\n\n\n

    I think the laser is on, but I have no laser light.\u00a0 What now?<\/h3>\n\n\n\n

    Symptoms<\/strong>:<\/p>\n\n\n\n