Zedboard power up fail

Hi sir,

When I power on the Zedboard, the LD13(power) doesn't light and LD0 ~ LD7 all RED.

The only action was that I shorted the 3.3V of J18.
After that, the Zedboard seems crashed?

Could I reset it by myself?

BR
Blake

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0 jafoste4 over 7 years ago

Hi,
What do you mean by measuring IC27 to see if its shorted? I would probably start with measuring all the pins on IC 27 and determining if the correct voltage is present at each of them. Please refer to the schematic and datasheet for that part.
-Josh
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0 blake_ding over 7 years ago in reply to jafoste4

Hi Josh,

Sorry to make you confused, I just want to double confirm that if I shorted the pad of 3v3 of J18; and found the board couldn't be launched.
As you previously mentioned, this action may damage the IC27; right?
And IC27 would make power on sequence failed.
If we rework IC27, it will have a big chance to restore the board.

BR
Blake
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0 blake_ding over 7 years ago in reply to jafoste4

Hi Josh,

Sorry to make you confused, I just want to double confirm that if I shorted the pad of 3v3 of J18; and found the board couldn't be launched.
As you previously mentioned, this action may damage the IC27; right?
And IC27 would make power on sequence failed.
If we rework IC27, it will have a big chance to restore the board.

BR
Blake
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