Check to make sure you haven't transmitted into the XG1 and blown the safety diode. You can easily remove it to see.
On Mon, Nov 23, 2009 at 4:40 PM, Brian - N5BCN <[email protected]> wrote: > > Hello all, > > When attempting to calibrate my K2's S-meter with a XG1, I discovered the > XG1 itself is having a problem. I verified this by connecting it to a > working IC-7600. > > The signal output on it, although heard, is very weak. Adjusted for > on-frequency, the s-meter reads about S2 or S3. Touching the XG1 can get > the signal up to about S4 or S5. Switching between 1 uV and 50 uV makes no > apparent difference in signal strength on the s-meter. > > Resistance checks on the XG1 and found some problems: > > Resistance from the following junctions to ground: > > U2, R1 = 50 k Ohms (should be 57-63 k Ohms) > C4, R3 = 50 k Ohms (should be 57-63 k Ohms) > R1, C1 = 54 k Ohms (should be 67-73 k Ohms) > > Checked all component placements and solder joints, no obvious problems. > Reheated all solder joints (twice now) just in case; no improvement. > > My next step is to measure all the resistor and capacitor values. > > Do these symptoms jump out anybody as something obvious (bad xtal or other > component)? Any suggestions will be most appreciated. > > 73 > > Brian - N5BCN > > ----- > K2 #6800 KSB2 KAT2 KIO2 KNB2 > -- > View this message in context: > http://n2.nabble.com/XG1-signal-problem-tp4054195p4054195.html > Sent from the [MM] mailing list archive at Nabble.com. > ______________________________________________________________ > 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 > ______________________________________________________________ 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
