http://elecraft.85.s1.nabble.com/KIO2-troubleshooting-tp379756p379764.html
connection. They wouldn't allow the connectors to mate deep enough.
>Sorry to interrupt anybody's field day plans!
>
>I just built the KIO2, but couldn't establish a connection with
>Hyperterminal and K2Remote software.
>
>So, I went to the DC Voltage chart, and found the following differences (I
>used a 13.8 V power supply). (The values with *'s by them in the manual
>were pretty close)
>
>J1-2: -11V, not -8
>J1-3: 0V, not 0.1
>J1-4: 0V, not 4.5
>U1-2: 0V, not 0.1
>U1-5: -11.2V, not -8
>U1-8: -11.2V, not -9
>U1-13: 4.96V, not 4.5
>U1-15: 4.96V, not 4.5
>J2-7: 0V, not 4.5
>
>I went to the control board, U6-25 is 5V (someone else on the mailing list
>had 0 here for a similar problem as mine). P4-7 on the control board is
>also 0V.
>
>Any ideas? Everything up to now has been working fine. Last thing I added
>on was RX160 which I haven't used. Before that, KAT2, which worked fine
>(haven't tried it since building KIO2). I haven't noticed any soldering
>problems or anything like that.
>
>Thanks.
>
>
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