On Thu, 23 Feb 2006 15:35:04 -0600, "Ron McMurray" <[EMAIL PROTECTED]> wrote:
>align part 1, voltage at tp1 no reading , voltage at q1 an q2 ok . have 6.75 >on one side of c18 0 on other side.any suggestions >ron , kc0tdj The other side of C18 will require an RF probe to measure a voltage. Diode D2 acts as an RF Detector allowing the 1.0 to 1.5 volts to be measured at TP1. The voltages on Q1 and Q2 indicated that JP-9 is properly connected, so all you have to do is determine if the local oscillator is actually working. A 'scope would serve you well, lacking that, the RF probe might also provide a clue. On my XV144, I read 0VDC on the junction of C18 and D2 when using only a DMM; using the RF Probe, I read 0.66 VDC. The RF Probe measures 0.11VDC on the junction of C15 and Q2 and 4.0VDC on pin 4 of T1. Hope this helps. _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
