[Elecraft] RS-232 communication failure

[Per Enocson]

Från: Per Enocson [mailto:sm0wra at telia.com]
Skickat: den 29 augusti 2006 22:28
Till: kj7bs at cox.net
Ämne: SV: [Elecraft] RS-232 communication failure


Hi Mark,
Yes, you have a valid point and I have only used cables as described in the KPA-100 manual.The set up worked flawlessly during four years and, mystery, all of sudden, communication breakdown! I am currently measuring all voltages in the RS-232 interface part of the amp and suspect hardware failure (defect U4 MAX 1406??)as some voltages are out of range. 

73 Per SM0WRA