> For the complete documentation index, see [llms.txt](https://machine-ideas-llc.gitbook.io/core64/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://machine-ideas-llc.gitbook.io/core64/core-board-testing-and-troubleshooting.md).

# Troubleshooting Tips

Measure continuity of all matrix wires from the header pin holes. The schematic is helpful to visualize which wires should be connected, and which ones shouldn't. 

Schematics are here: <https://github.com/ageppert/Core64/tree/master/Schematics>

Make sure the Core64 logo is facing up, and at the top of the LED Matrix before inserting the Core Board (in the same orientation) through it.