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corrize started a topic Blackmagic micro studio camera plugged in reversed polarity

in Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices

Today, 12:32 AM
Blackmagic micro studio camera plugged in reversed polarity

Hello, I know this camera has been plugged to 12v… with reversed polarity, and now it’s not working. The camera goes on, but it seems there is not enought voltage or power somewhere : a light blinking, fan spining, the processor is ok because the camera model is identified by app via USB but the camera display nothing.
At the 12v input, there is a P-Mosfet with a « classical » zener diode protection.
The mosfet could had a leak, I replaced it. But before test with power, I would like to check the zener diode because it seems physically damaged : I can’t read the marking code, but...

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corrize replied to Identify a burned component in Gimbal Zhiyun smooth-q3

in General Electronics Technical Discussion

11-12-2025, 03:12 PM
thank you, 🙂 very unexpected the top bar is a brand
I cleaned it 20 times with a toothbrush and alcohol. The chip is deformed and bulging due to the heat. I couldn't do any better.
I will order it.

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corrize started a topic Identify a burned component in Gimbal Zhiyun smooth-q3

in General Electronics Technical Discussion

11-12-2025, 02:57 AM
Identify a burned component in Gimbal Zhiyun smooth-q3

Hello, in this device, there is a chip (managing battery I guess) burned.
I can’t read the full marking code because it is really damaged/burned.
With a best pictures, I deduced that :
8HA (or 5HA ?) and probably not 2HA or EHA or BHA
K20
296
But I can’t find a component on the web with these marking code. Do you know what it is please ?...

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Blackmagic micro studio camera plugged in reversed polarity

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Identify a burned component in Gimbal Zhiyun smooth-q3