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
