William, That behavior is quite common if there is a solder bridge on the thermistor board. Check it over very carefully and I believe you will find it.
73, Don W3FPR > -----Original Message----- > > K2 s/n 4276 > > VCO Alignment (p61) > VFO set at 4000 kHz > L30 verified as a 4.7 uH "T005Z" > > Adjusting L30 has no effect on R30 voltage reading. > > ************************************************* > > At TP3, there is a 12100.93 kHz signal present. > At TP1, there is a 7717.86 kHz signal present. > R30 is only 0.019v > Visually inspected all components, verified that all are the > correct values and no components are installed backwards. Solder > joints look ok. No solder bridges or un-soldered connections found. > > Changing bands does not change the reading at R30. > > Visually inspected D16 and D17, both appear OK. > > RFC15 is 8.5 ohms > > U6-1 during PLL test, goes from 0.006v to 7.63v > > U6-5 is steady at 4.004v > > RFC14 leads look good and has 10 turns. > > RFC15, C91 and C88 reinspected and appear ok. > > T5 looks like the photo. Tried spreading and compressing the > windings. No change in voltage readings at R30. > > Other measurements: > U6-1 = 7.65v > U6-5 = 4.004v > U6-6 = 4.88v > U6-7 = 0.019v > U6-8 = 8.05v > > U4-16 = 4.88v > > Please advise. > > Thank You > William Smith > KC4WVL > _______________________________________________ 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
