Hello
Hello I have just finished building a K2-10 and am having a bit of a problem getting it to work. The control board and front panel work fine, but the RF board just doesn't seem to be there. I can change all the bands,Go through all the menus, go to the freaquendcy counter, volt meter,and about anything that doesn't envolve the RF board. None of the RF board relays work. I have resoldered all the pads in the entire rig two to three times and nothing changes. I even resoldered all the connectors between the different boards. RF-U1 has the proper voltage on all pins and so does all the other components on the RF board. Any ideas appreciated ! Scott Scott ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Scott,
We will have to narrow things down a bit to be helpful - so we need more detailed information. You say you can "change bands", but you also say that the relays on the RF Board do not operate - those two statements are not consistent - the relays must operate to actually change bands. You also say that you can "go to the frequency counter" - what do you see in the K2 display when you put the counter probe in TP2 and enter the menu for CAL FCTR? - you should read the BFO frequency. The if you put the counter probe into TP1, it should read the VFO frequency. If you set the K2 to 7000 kHz, the VFO should be near 11915. If that is true, change to 75 meters (4000 kHz) - CAL FCTR should now indicate about 8915 kHz. Make these checks first. The relays are not very loud - could it be that you are just not hearing them change. There are many functions on the RF board, and the relay control is only one of those. Please be as specific as you can so we can help. 73, Don W3FPR On 11/9/2010 6:03 PM, [hidden email] wrote: > Hello > Hello > I have just finished building a K2-10 and am having > a bit of a problem getting it to work. > The control board and front panel work fine, but the > RF board just doesn't seem to be there. > I can change all the bands,Go through all the menus, > go to the freaquendcy counter, volt meter,and about > anything that doesn't envolve the RF board. > None of the RF board relays work. > I have resoldered all the pads in the entire rig two > to three times and nothing changes. I even resoldered > all the connectors between the different boards. > RF-U1 has the proper voltage on all pins and so does > all the other components on the RF board. > Any ideas appreciated ! > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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