Seems like board doesn't work

[youngpark]

Hello, 

I bought new nexysvideo board. I read the 'important' message "press reset cpu button before turn off the board power", however I turned off the board power without pressing 'cpu reset' button by mistake.

Therefore, board seems like it does not works.   When I turn on the power,  heat sink has no heat and OLED is turned off. Also when I toggle the switch, the LED doesn't turn on/off (remain off).

Is there any solution to resolve this problem?   If no, how can I repair this board?

thank you. 

[jpeyron]

Hi @youngpark,

Welcome to the Digilent forum. Sorry to hear you are having issues with the Nexys Video.

To verify the power-good LED (LD16) does not turn on when power(12 V) is given to the Nexys Video.

Also the Nexys Video is not connected to anything else I.E. HDMI, FMC....

To better figure out where the issue is i would like you to measure the voltage of a few capacitors with a Digital Multi-Meter. 

either C329, C330, C331 or C332 ( should be 12.0 V)

either C336, C337  or C338 (should be 3.3 V)

either C344  or C340 (should be 1.0 V)

either C348  or C349 (should be 1.8 V)

either C354  or C355 (should be 1.5 V)

best regards,

Jon