Rich, It would seem your problem extends beyond the S-meter. For starters, I don't like the 9.0 volts that you report on U2-8, that is the voltage rail direct from the 8 volt regulator, so forget about the S-meter for the moment and start by measuring the voltage regulator U4. Once that voltage is within range (8 volts +/- 10%) you can re-check the AGC Threshold setting and see if the S-meter works.
The 8R voltage is also quite high, but the regulator may be the root cause of all your problems - fix the regulator problem first. 73, Don W3FPR > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Richard Carter > Sent: Saturday, February 18, 2006 12:03 PM > To: [email protected]; 'Gary Surrency' > Subject: [Elecraft] Inoperable S-Meter > > > I've finished my K2, and everything seems to work just fine except the > S-Meter. I don't think the AGC is working either. My analog skills are > somewhat limited, so I'm hoping that someone might advise me. I've copied > elecraft support too, but if someone out there has suggestions, I'd > appreciate the help. I have a scope and can take measurements. > > I've verified that the X1 crystal is working. Voltages on U1 look good. > Voltages on U2 look low by about 2v. I think I have a signal to D1. > > Voltages are as follows > > U2-1 4.1v > U2-2 4.1v > U2-3 4.1v > U2-4 0v > U2-6 3.9v > U2-7 3.9v > U2-8 9.0v > Q12-E 8.9v > Q12-B 3.8v > Q12-C 4.0v > > Thanks in advance > Regards > Rich - KE1EV > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > 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 > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.375 / Virus Database: 267.15.11/264 - Release Date: 2/17/2006 > > _______________________________________________ Elecraft mailing list Post to: [email protected] 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
