Leo_W

The device on the AD2 board has no number. I cannot correspond to the schematic diagram. I may only be eliminated by one by one

Hi，Digilent！ I have a damaged AD2 that cannot output the power. When I set it to 5V output, I can only measure about 0.16V. May I ask which device may have a problem. I also have an AD2 that can be used normally, so I can compare the test, please tell me about the device that might occur. Thank you very much.

I encountered similar problems before, and I judged that the IC3 was broken, and it was successfully repaired after dismantling.

Thank you very much. I detected that 3V3 is abnormal, 5V, +12V, -12V is normal, and the other 3.3V is normal. Do you have a schematic for this part?

Hi， The 15V power supply part of my ADS is faulty, and the power light is not on after power-on. I need the schematic diagram of the 15V part, but I don't have the schematic diagram of ADS on the official website. Where can I find the schematic diagram of Analog Discovery Studio?

Because the fan of the ATX power supply stopped when the power was powered on, I judged that it was the short circuit of the power supply part, so I replaced the chip one by one through the elimination method, and finally found that Q27 and Q28 were faulty.

Thanks！

I had a piece of SUME that shorted out and couldn't start, and now it's finally fixed and can be switched on. Power on as described in the WIKI, the Power LED (LD10) and DONE LED (LD4) light up immediately. But the UART interface does not have any information printed out. This program seems to be built in and it is not known how to get SUME to re-run this program. I wrote a key lighting program to test, FPGA chip is normal. Please tell me where I can download the program？ Thanks！

Hi, I have an AD2 in my hand, and I need to use the API to realize the function shown in the figure below. Which API can I use?

Hi @attila After replacing the IC3, it can be used normally. Great, thank you very much！

Hi @attila I tested it and found that the two 3V3s didn't seem to be connected together. I will try to replace IC3 first to see if it can be repaired. The IC3 did burn out when tested.

After an ADS is powered on, the power light is normally on, but it cannot be recognized by the computer. After testing, the AD2 part can be used normally, and the usb port lacks 5V input. C23 measured down to 0V, the normal should be 5V, the usb port pin is also 0V. R22 measured only 2.07V, the normal is 3.3V, the device voltage around IC6 is abnormal, IC7 can only measure 2.07. Don't know where the 3.3V comes from? And my IC3 is unusually hot, I suspect that the chip is short-circuited and burned out, but I lack the schematic, do not know the IC3 model?

Does this power chip need programming? Before, the power chip of other boards can be used normally after replacement.

Hi，Digilent I have an arty a7 board, ic11 was abnormally hot after power-on, and after testing, it was judged that ic11 was short-circuited, so I replaced ic11, but ic11 has no voltage output, may I ask what happened?

No, I'm using a standard ATX power supply. When I powered on the board, the fan of the power supply stopped.