Duet 3 6HC Voltage Regulator Broken
-
Hello,
The servo connection of the card has been short circuited. Now the 5V and 3.3 volt lights are not working. When I examine the card, I can see that the AOZ1284PI IC is burned. I can't find this IC in my country, I need to find the equivalent or where to get it. Other than that, I don't know if there is any other fault. I have two cards where this problem occurs and I want to repair them.
-
@tufantas the AOZ1284 is normally readily available, but like many other components it is hard to find right now because of the global semiconductor shortage. Which country are you in?
Can you communicate with the Duet if you apply just USB power? If so then you could remove that chip and apply external 5V power.
Which version of the MB6HC is it?
Duet WiFi hardware designer and firmware engineer
Please do not ask me for Duet support via PM or email, use the forum
http://www.escher3d.com, https://miscsolutions.wordpress.com -
@dc42 Hi,
It works fine when I power it via USB. I removed the AOZ1284 chip. How should I provide 5v without using USB?
Note: My country is Turkey.Thank you for your support.
-
@tufantas you can provide 5V power via the 5V_EXT connector. See https://d17kynu4zpq5hy.cloudfront.net/igi/duet3d/33DEuEJZXP16vLbF.huge.
If you PM me your address then I may be able to send you a replacement chip, if I have any spares and it survives the customs and import procedures of your country.
