Burnt Component
Discovery
Posts: 606
Hi,
The other day, I was operating my Propeller Activity Board powered by the USB and an external power supply. I pulled the USB from the computer and one of the 2007 voltage regulator ICs burnt generating a column of smoke.
I can replace the part if a suitable source part number is provided.
Sincerely,
Discovery
The other day, I was operating my Propeller Activity Board powered by the USB and an external power supply. I pulled the USB from the computer and one of the 2007 voltage regulator ICs burnt generating a column of smoke.
I can replace the part if a suitable source part number is provided.
Sincerely,
Discovery
Comments
Actually, a photo could be best, as there were a fair few versions in the early days of that board !
Discovery
On the back, is the part number 32910? Is there a Revision Number? A shot of the backside of the board may help.
That sounds more like a Date Code.
Discovery
https://www.mouser.com/ProductDetail/Infineon-Technologies/2N7002-H6327?qs=CVg1V728NXGZyf6kD1tkzQ==&gclid=Cj0KCQiA-c_iBRChARIsAGCOpB144IMf0ZiPvkE1t-Q9OFjo-dMdAW56bFMekyQIkXQJbhdCKbwRPxYaAtEEEALw_wcB
I will order that part immediately.
Thank you,
Discovery
-Phil
Ken Gracey
The circumstances were the computer sleep time was set to a few hours and when the machine went to sleep, it glitched the USB port that shut down the Propeller Activity Board. I connected a 12 VDC supply to the external connector on the board. The input voltage range is stated on the board as 6 to 9 VDC. I then changed the computer sleep setting to never sleep and kept the 12 VDC attached. For some reason, I disconnected the USB port cable and a pow sound was heard, a short spark of light was detected, a column of smoke was seen, and a stink was detected. I rapidly pulled the 12 VDC plug from the Activity Board and used a computer microscope to view the damaged part. It was cracked nearly in the middle of the part.
Discovery
But as you can see Parallax is again super generous and offers to replace it. I think the demo board had a announced life-time warranty, I killed one pin on mine but never bothered to replace it.
Those brothers are some fine people, both of them unique and known to do things slightly different.
Enjoy!
Mike
This is just ONE of the many reasons that I am a Parallax customer, but it is a REALLY good reason.
The following is supported by the survivors of the Blank Plague.