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Topic: Arduino mega 2560 pro embed heating after 1 minute (Read 717 times) previous topic - next topic

arduino_to

Mar 14, 2019, 10:29 am Last Edit: Mar 15, 2019, 12:01 am by CrossRoads
Hi,
Just buyed an Arduino mega 2560 pro embed, I installed the CH340G driver, I tried the blink program, it worked fine for a minute or two, then it turned off and it was hot all on the micro usb side.
I tried again, same scenario, here is my board:

Please help, thank you.






hammy

Do you have anything connected to the board ? How are you powering it?

DrAzzy

Either the board is defective, or you had external devices connected to it drawing far too much current (or maybe connected it to external supply improperly?)
ATTinyCore for x4/x5/x61/x7/x8/x41/1634/828/x313 megaTinyCore for the megaavr ATtinies - Board Manager:
http://drazzy.com/package_drazzy.com_index.json
ATtiny breakouts, mosfets, awesome prototyping board in my store http://tindie.com/stores/DrAzzy

arduino_to

Do you have anything connected to the board ? How are you powering it?
hi,
I had nothing connected to the board, and I powred it with a usb cable to my computer

arduino_to

Either the board is defective, or you had external devices connected to it drawing far too much current (or maybe connected it to external supply improperly?)
hi,
I had no external device connected to it, and I only powred it with a usb cable to my computer, the only program I tried is the blink example and it worked, it blink a led on the board

DrAzzy

Board is defective. Contact the vendor to request replacement/refund.
ATTinyCore for x4/x5/x61/x7/x8/x41/1634/828/x313 megaTinyCore for the megaavr ATtinies - Board Manager:
http://drazzy.com/package_drazzy.com_index.json
ATtiny breakouts, mosfets, awesome prototyping board in my store http://tindie.com/stores/DrAzzy

arduino_to

#6
Mar 16, 2019, 04:23 pm Last Edit: Mar 16, 2019, 08:16 pm by arduino_to
Board is defective. Contact the vendor to request replacement/refund.
Thank you for your answer, I contacted the vendor and he didn't accept neither to remplace nor refund, he said I can't prove I am not the one who damaged it. Any clue on how to fix the board???

arduino_to

Hi,
This is an update,
So the board was actually defective, the heating component was the 5V/1A regulator, I don't know if that can be fixed.

Thank you to everyone who answered.

zibard2

Hi,

My mega 2560 pro mini board was heating up too (nothing plugged in except the USB to PC).

I fixed the problem by removing AMS1117 regulator IC located at near the Vin, GND, 5V pins.
This is a quick fix - I will look into what is causing this fault. This is the 4 conductor part below the diode near usb connector. Some soldering skill may be required to remove this part.

Hope this helps.

Zibard2

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