CrowPi 1 Power diode and Screen issue

rhaugenrhaugen
in Raspberry Pi & CrowPi

So I have recently acquired a CrowPi 1 and it included a Pi Model 3 B+. When I first powered it up with the micro USB (5V) the system ran with the exception that the OS would report under voltage. I downloaded the manual and found that the barrel jack was designed for 12v 2A. I connected my power supply with the barrel jack at originally 8 or 9 volts. The system did run for a short period of time then the screen flashed a couple of times, and the power button began to overheat and smoke. I disconnected the power and have dismantled it. In trouble shooting it the camera controller chip on the upper screen pcb is overheating and the screen no longer works. As well something has shorted out on the Pi itself as the power chip is shorting out. In checking the main pcb, I have removed the broken switch and patched a wire across it. When powering the board with micro usb the GPIO pins read 5V as correct . I then remove the micro usb and connect 12v power with the barrel jack. The 5V GPIO pins show 7+ volts and the diode D44 shows extremely hot on my IR camera. Couple of questions:
What type and rating is Diode D44 as I think it is shorted, so I can replace it ?
Would the top screen PCB still be available ?

Comments

  • JennieJennie

    Hi, rhaugen,
    Our technical support team is currently investigating your issue. Please be patient, and we will respond to you as soon as possible.

  • JennieJennie

    Hi, rhaugen,
    Thank you for reaching out. I’m sorry to hear about the issues you are experiencing with your CrowPi.
    1. Regarding your questions:
    The diode D44 on the CrowPi 1 is SS34, with an SMA package.
    2. The board on the top screen seems to be the camera module board. It should be available for purchase.
    Before proceeding further, could you please confirm if you would like to purchase this PCB from us? I will need to check with our procurement team to confirm its availability.
    Let me know how you'd like to proceed.

  • rhaugenrhaugen

    Thanks Jennie, I will look at replacing the diode and see how I make out before looking to see if I still would need the top PCB.
    Regards
    Ray

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