Hello all the team, particularly DON! Since some week I had a KSB2 problem. The K2 is working perfectly in CW, alone, or with the KPA100, with the KSB2 position jumpered. If I put KSB2 in place, the K2 Smeter display go to S9 + 40 block the receiver and too, does not switch in Tx when I close either the key or the mike PTT. I did this morning voltages test on KSB2, and the following list is the values not normal, as indicated page23 of KSB2Assembly instruction :
U1-12 = 5.02 (TXC) U1-14 = 5.21 U1-16 = 0.00 U1-17 = 5.23 U1-21 = 0.00 (RXS) U1-22 = 4.27 (RXC) U1-28 = 4.92 U2-5 = 5.36 U3 OK U4-3 = 5.24 All these values where obtained in Rx. I did not check them in Tx as it was impossible to switch in Tx mode! All values not noted where per the book! If I remember well, the U1 is a new one! Best regards to Elecraft F5UL Bob ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
