Since Garry suggested I ask the reflector I am posting the following that we have been trying to figure out on my K3 kit. Any help would be appreciated
Dennis N4ZKR Copies of messages below: Gary Surrency wrote: > OK. Let me know how the testing goes. I don't work on weekends, but > will be back here come Monday morning at 8am MST. > > Someone else in tech support may reply in the interim though, and > there is also the Elecraft reflector you can use as a resource. Use > [email protected] to be sure more than one person receives your > emails. > > Many times, all that is wrong is there is a bent or misaligned pin, or > a filter setup error. The K3 Utility makes it easy to check the filter > setup, and to test if the serial port and firmware upgrade procedure > works OK. > I have visually checked all of the pins and/or reinserted them > Use care when handling and testing the boards so you do not damage > anything with ESD. The SMT parts are also easy to knock loose from the > PCB, so use care and be gentle. Examine the boards and parts closely > with a bright light and a magnifier to see if there might be some > damage or poorly soldered parts that came loose in handling, shipping, > and during assembly. > EVERYTHING has been done with an ESD wrist strap attached to the radio and on an ESD surface. I dont see anything broken or missing > -- > 73, Gary AB7MY > ========= > [email protected] > Elecraft Technical Support > > [email protected] wrote: >> I will check tonight. I am also rounding up a RS232 cable to try the >> K3 Utility tonight also. >> 73 >> Dennis > K3 utility verifies the filter settings. > >> On Fri Jun 12 12:14 , Gary Surrency <[email protected]> sent: >> >> >>> When the preamp is turned on, do you hear a slight increase in noise >>> and hiss as it adds its gain into the signal path? No increase with the preamp. No increase in noise when the antenna is connected. >>> >>> A noticeable response in noise should result when you touch pins 1 >>> and 2 of the KR MXR board. Pin 1 is the round pin closer to the P1 >>> label (not the gold plated hole, but the pin next to it). No increase in the noise >>> >>> -- >>> 73, Gary AB7MY >>> ========= >>> [email protected] >>> Elecraft Technical Support >>> >>> Dennis Wieck wrote: >>> >>>> I did try the test points. The results are listed by each point. I >>>> have rechecked the filter settings. I only have one installed at >>>> present. It is the stock 2.7 in the first position. >>>> >>>> Gary Surrency wrote: >>>> >>>>> Try those test points I mentioned, and be SURE the filter setup is >>>>> correct. The K3 Utility helps a lot to do that. >>>>> >>>>> -- >>>>> 73, Gary AB7MY >>>>> ========= >>>>> [email protected] >>>>> Elecraft Technical Support Dennis Wieck wrote: >>>>> >>>>>> It is pretty much deaf. There is no increase in noise when you >>>>>> connect >>>>>> an antenna >>>>>> The only filter installed is the standard 2.7 at FL1 >>>>>> I will have to get a cable to do the computer interface. >>>>>> >>>>>> Gary Surrency wrote: >>>>>> >>>>>>> Complete the kit and setup/calibration that you can do, so you >>>>>>> can see if it will transmit. >>>>>>> >>>>>>> >>>>>> It does not show any power out on my wattmeter >>>>>> >>>>>> >>>>>>> Verify VCO CAL works OK. >>>>>>> >>>>>> If this is the synthesizer cal this works right >>>>>> >>>>>>> Look over all boards and connectors closely for correct assembly. >>>>>>> >>>>>>> >>>>>> Checked this >>>>>> >>>>>>> >>>>>>> More: >>>>>>> >>>>>>> >>>>>>> You can try the receiver troubleshooting steps I show below. >>>>>>> This testing is done in the reverse order of normal signal flow, >>>>>>> from the AF to IF to RF circuits. >>>>>>> >>>>>>> You can do this without even having any test equipment. Just use >>>>>>> care to not accidentally short or drop anything inside the rig, >>>>>>> and ground yourself against ESD. >>>>>>> >>>>>>> Try touching these points using an insulated meter test probe >>>>>>> from your VOM or DMM to couple in a little noise to see if the >>>>>>> stages are working. Select a noisy band such as 40m and have the >>>>>>> preamp ON. >>>>>>> >>>>>>> The M1, M2 pads near the far right of the RF board should >>>>>>> produce a click when touched. >>>>>>> >>>>>> This worked >>>>>> >>>>>>> Both of the right hand most pins of the currently selected >>>>>>> crystal filter for the sub should make noise when touched. Make >>>>>>> sure the filter setup is correct. It is easier to see and modify >>>>>>> all of the filter setups in the K3 Utility, under the >>>>>>> Configuration/Edit Crystal Filters button. Incorrect filter >>>>>>> setup is one of the most common errors, as there are lots of >>>>>>> settings to do by mode and by filter position. >>>>>>> >>>>>>> >>>>>> This worked >>>>>> >>>>>> >>>>>>> Pins 1 and 7 of the KNB3 should make a little noise when touched. >>>>>>> >>>>>> Nothing at pin 1 or 7. Removed and reinserted with no change >>>>>> >>>>>> >>>>>>> Check for about the same response for pins 1 and 2 of the KR MXR >>>>>>> and jumper W1 on the RF board just below the KR MXR. This board >>>>>>> is very fragile so handle and test on it with care. >>>>>>> >>>>>> Nothing at KR MXR If W1 is the one labeled IF it does make noise >>>>>> >>>>>>> Also try touching the tiny pin to the side of the trimmer caps >>>>>>> for the band that is currently selected, in the band pass filter >>>>>>> area on the left side of the RF board. >>>>>>> >>>>>>> >>>>>> Nothing >>>>>> >>>>>>> Touching the adjustment screw of the white IF trap trimmer cap >>>>>>> at C218 should produce quite a bit of noise >>>>>>> >>>>>>> >>>>>> Nothing >>>>>> >>>>>>> Many problems are due to having the connector pins not well >>>>>>> aligned and mated on one of the boards. Check for that. >>>>>>> >>>>>> I checked them >>>>>> >>>>>>> If there is no KPA3 installed, either the KPA3 jumper block must >>>>>>> be installed, or the KPAIO3 board with the KPA3 menu set to PAio >>>>>>> ON to bypass the missing KPA3. >>>>>>> >>>>>> It is installed >>>>>> >>>>>>> If there is no KXV3 installed, wire jumpers must be in RF board >>>>>>> connector J66 pins 8-10 and 13-15, behind the KIO3 main board. >>>>>>> >>>>>>> >>>>>>> >>>>>> These are present >>>>>> >>>>>> >>>>>>> -- >>>>>>> 73, Gary AB7MY >>>>>>> ========= >>>>>>> [email protected] >>>>>>> Elecraft Technical Support Dennis Wieck wrote: >>>>>>> >>>>>>>> I will not be back in town until tomorrow night so I cant check >>>>>>>> until then >>>>>>>> Some answers below >>>>>>>> >>>>>>>> Gary Surrency wrote: >>>>>>>> >>>>>>>>> Dennnis, >>>>>>>>> >>>>>>>>> Does the rig receive or transmit OK? >>>>>>>>> >>>>>>>> I have not tried transmitting. I am at the Ref Cal stage of >>>>>>>> construction >>>>>>>> >>>>>>>>> Can you tune in WWV at 10MHz? >>>>>>>>> >>>>>>>> No. I don't hear anything at any of the WWV frequencies ( or >>>>>>>> anywhere else fo that matter) >>>>>>>> >>>>>>>>> Are all TMP cables in the right connectors, and fully seated? >>>>>>>>> >>>>>>>> I think so but will check when I get home >>>>>>>> >>>>>>>>> Did you verify all of the crystal filter setups are correct? >>>>>>>>> It is easier to see and modify all of the filter setups in the >>>>>>>>> K3 Utility, under the Configuration/Edit Crystal Filters button. >>>>>>>>> >>>>>>>>> >>>>>>>> Yes but I will check again >>>>>>>> >>>>>>>>> REF CAL is currently best done by using Method #2 on page 47 >>>>>>>>> of the Owner's manual. Turn the VFO A knob to adjust, and do >>>>>>>>> not press 1 or 2 on the front panel. First set the VFO readout >>>>>>>>> to exactly 10.0MHz and then adjust the VFO until WWV is at >>>>>>>>> zero beat in both LSB and USB, not CW or data modes. >>>>>>>>> >>>>>>>>> -- >>>>>>>>> 73, Gary AB7MY >>>>>>>>> ========= >>>>>>>>> [email protected] >>>>>>>>> Elecraft Technical Support Dennis Wieck wrote: >>>>>>>>> >>>>>>>>>> I am at the Reference Oscillator Calibration part of my kit >>>>>>>>>> assembly ( SN 3098). >>>>>>>>>> I am trying to do the method 2 (Zero-Beating) method. The >>>>>>>>>> problem is that I cannot hear any signal to zero-beat to. >>>>>>>>>> Everything up to this point has gone by the book. I loked at >>>>>>>>>> the troubleshooting section but did not find anything that >>>>>>>>>> applied. Power supply voltage is correct. >>>>>>>>>> Can you suggest where to go from here? >>>>>>>>>> >>>>>>>>>> Thanks >>>>>>>>>> >>>>>>>>>> Dennis >>>>>>>>>> N4ZKR >>>>>>>>>> >>>>>>>>> >>>>>>> >>>>> >> >> > > ______________________________________________________________ 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
