I can tell now that there is continuity from the speaker jack to the control board. I don't get continuity from P3 to P5 on the control board. The schematic makes it look like a clean shot. When I tried to trace it on the board point to point, I get lost. Seems like it's going through a lot of coponents. If it is a straight shot, perhaps there is a break in the path on the board. Could I rig a separate jumper wire to P5 from P3? Roland in Stockton #3090 ----- Original Message ----- From: "W3FPR - Don Wilhelm" <[EMAIL PROTECTED]> To: "Roland" <[EMAIL PROTECTED]>; "elecraft" <[email protected]> Sent: Monday, July 25, 2005 8:35 PM Subject: RE: [Elecraft] 40 meter reciever not tuning
> Roland, > > I suggest you start by re-checking the VCO voltage readings as specified on > page 61 of the manual. At the time they were done, you ahould have had all > voltages within range. Ask yourself what has changed in the VCO area since > that time - the answer would normally be 'nothing'. You may want to tell us > what the VCO Voltage readings actually are. > > For your speaker problem, if you know the speaker and external jack are OK, > the only thing left is the contacts in the headphone jack. Make certain the > headphone jack is properly soldered at all pins - they are more difficult > than most to solder since the pins do not project through the board. It is > possible that you can have a bad headphone jack, but check the soldering > first. > > 73, > Don W3FPR > > > -----Original Message----- > > > > I was told to report back. Ok, I told you-all before that 40 > > meters wasn't tuning except on the display. Well I thought all > > the other bands were tuning. Looks like 30 meters isn't tuning > > around either. > > I was told by Don to check left on R30. I checked and while > > tuning noticed that the voltage DID NOT vary. > > I don't have a capacitor checker so I don't know about C71 other > > than replacing it. It has a little monolithic cap marked "820" > > on it. All I have around is a disk NPO "82" that I could swap it > > out with, is this ok? > > I put the rig on 7000 and the freq. probe to TP1 and then CAL > > FACTR. You said it should read 11915. It reads 11341. It DOES > > NOT change when moving the dial. > > On the speaker, No AC detected. I also jumpered it directly to > > the speaker just to check it out. Nothing. I jumpered the K2 > > speaker to my small wonders lab SW+ QRP rig and it works FB. > > Thanks, > > de Roland in Stockton > > #3090 N5VWN > > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.0.338 / Virus Database: 267.9.4/57 - Release Date: 7/22/2005 > > _______________________________________________ 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
