I had a small solder short on this plugg on the mainbord near the filter area that gave this symptoms. I had to magnify to se it. Could not see it with eyes only. Tom LA1PHA
----- Original Message ----- From: "Don Wilhelm" <[EMAIL PROTECTED]> To: "Gregg Lengling" <[EMAIL PROTECTED]>; "Elecraft reflector" <elecraft@mailman.qth.net> Sent: Thursday, July 29, 2004 2:49 AM Subject: Re: [Elecraft] Receive Problems > Gregg, > > I would suggest looking carefully in the IF filter area. You found one bad > solder joint, so another one is quite likely. The last one I worked on with > similar problems had a bad solder joint on the SSB board at one of the 3 pin > headers - which reduced the signal getting to the IF amplifier a LOT. > Remove the SSB board and put jumpers into the 3 pin headers (jumper from > pins 1 to 3) and see if it comes to life again - if so, the problem is on > the SSB board. > > 73, > Don W3FPR > > ----- Original Message ----- > > I've got a Rev A K2 (#529) that a friend brought to me to upgrade to all the > Rev B mods ect. Before I did the mods I fixed some problems....low audio > out (bad solder joint) and other minor probs. So before I started the > upgrades it was working. > > Here's the problem now. The radio works great except for the following on > receive: > Very low recovered audio and low S meter reading................ > I'm looking in the preamp/mixer and receive VFO area....I found on > the VFO (Q18) the original owner put another 1N4148 on the bottom of the > board across D13 in the opposite polarity....was this something I didn't > hear about (with or without I still have the problem). I've checked the > voltages on the VFO and Buffer and the preamp and everything looks good. So > does anyone have some ideas. > > > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > 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 > > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
