[hpsdr] powering up homebrewed hermes.

[k3it]

Sorry I should have looked closer before  asking... I mounted u6 and u7
wrong... and U25.  I feel dumber than usual today.
The good news is the FPGA is not upside down :)


On Sat, May 25, 2013 at 9:09 AM, k3it <gokoyev+k3it at gmail.com> wrote:

> Hi all
>
> I'm going through some initial checks on the newly built Hermes and (no
> firmware or bootloader yet) and need some help.
>
> Is it OK for the 5V output to drop down  to 4.6V under the load? I'm
> getting 485 mA through the J26 jumper and  good  voltages from u27-u32
> regulators, but not sure if the sag is normal.
>
> Another problem is on the 12v rail. Connecting 2 and 3 on J17 makes the
> regulator too hot to touch.  There is 3.9 kOhm between J17 pin 2 and 3.
>
> Does that sound right?
>
> 73
> Vasiliy K3IT
>
>
>
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