Smoked it

Discussion related to "under the hood" OpenMV topics.
ScottM
Posts: 91
Joined: Thu May 30, 2019 2:12 pm
Location: Ottawa, Canada

Smoked it

Postby ScottM » Fri Mar 13, 2020 9:54 am

I mistakenly connected 12V instead of 5V to one of my cameras and smoked what I think is a voltage regulator. Can you tell me what the part number is? I'd like to try to repair it. It is the circled part in the picture. I have the skills to do board level repairs. I'm hoping to save it.
blown part.JPG
User avatar
iabdalkader
Posts: 1168
Joined: Sun May 24, 2015 3:53 pm

Re: Smoked it

Postby iabdalkader » Fri Mar 13, 2020 10:38 am

PAM2305AABADJ
ScottM
Posts: 91
Joined: Thu May 30, 2019 2:12 pm
Location: Ottawa, Canada

Re: Smoked it

Postby ScottM » Fri Mar 13, 2020 10:56 am

Thanks. They are only 88 cents.
ScottM
Posts: 91
Joined: Thu May 30, 2019 2:12 pm
Location: Ottawa, Canada

Re: Smoked it

Postby ScottM » Thu Mar 26, 2020 3:41 pm

I bought the part and soldered it in. The camera powers up but won't communicate to the USB port, so I guess it's cooked.
User avatar
kwagyeman
Posts: 4003
Joined: Sun May 24, 2015 2:10 pm

Re: Smoked it

Postby kwagyeman » Thu Mar 26, 2020 4:59 pm

Try DFU mode?

You might have given the 5V USB input 12V however which would damage the main CPU.
Nyamekye,
ScottM
Posts: 91
Joined: Thu May 30, 2019 2:12 pm
Location: Ottawa, Canada

Re: Smoked it

Postby ScottM » Fri Mar 27, 2020 11:15 am

I probably did it by applying 12V through the pan/tilt shield connection block. In any event, when I connect to USB port, the green light flashes rapidly for a couple of seconds, then turns white and turns off. It does not renumerate. The computer does not see it.

Return to “Technical Discussion”

Who is online

Users browsing this forum: No registered users and 6 guests