Topics created by Jack

@Jack What are you measuring with the "external thermocouple"? Please give specifics of the actual temperatures measured. So for instance is it simply room temperature or the temperature of a hotend? If it is a hotend where have you placed the "external thermocouple" a photo showing your test setup would probably help.

Do the LEDs that light up change when you apply VIN power?

Can you provide a higher resolution photo of the board in case we can see a failed component?

Otherwise, please try working through this page https://duet3d.dozuki.com/Wiki/What_to_do_if_your_Duet_won't_respond