[Elecraft] KPA1500 FW 1.78 - no PTT response

2018-09-27 Thread Jeff Blaine
Loaded up the beta firmware today.  The PTT (key line) was dead after that.  Reloading 1.64 and all was functional again. What am I overlooking? 73/jeff/ac0c alpha-charlie-zero-charlie www.ac0c.com __ Elecraft mailing list Home:

Re: [Elecraft] K2 Alignment and Test, Part II issues

2018-09-27 Thread Don Wilhelm
Don, It seems you are having trouble with both the PLL Reference Oscillator and the BFO (TP2 should be near 4915kHz). The VFO TP1 is apparently oscillating if you have a frequency of 4918.88, but that frequency is not correct. Tackle the PLL Reference first. OK, the PLL Reference Oscillator

Re: [Elecraft] K2 Alignment and Test, Part II issues

2018-09-27 Thread Don Schroder
Don, All three test points are not zeros. TP1 reads a solid 4918.88, TP2 reads between flickering 267 & 289, TP3 reads all zeros. The resistance from the source of Q19 to ground is 280 ohms. I did make an interesting discovery when I took voltages again. U4, pin 5 (SDO) is 0 volts, pin 7

[Elecraft] P3 for Doug

2018-09-27 Thread James Wilson
I sent Doug an email about my P3 that is available P3, P3SVGA and TXMON (2000W) for $800 Jim - W4RKS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] K2 Alignment and Test, Part II issues

2018-09-27 Thread Don Wilhelm
Don, While in CAL FCTR, try the probe in TP3 and TP1 and TP2.  If you have a zero reading in all 3 places, you most likely have a bad probe. Yes you might have a PLL problem, but that is not certain yet. One quick check is to measure the resistance from the source of Q19 to ground.  If it is

Re: [Elecraft] Elecraft Digest, Vol 173, Issue 24

2018-09-27 Thread Alan B via Elecraft
73 Alan > On 27 Sep 2018, at 18:43, elecraft-requ...@mailman.qth.net wrote: > > Send Elecraft mailing list submissions to >elecraft@mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit >http://mailman.qth.net/mailman/listinfo/elecraft > or, via email, send a

Re: [Elecraft] K2 Alignment and Test, Part II issues

2018-09-27 Thread Don Schroder
Don, Thank you for the excellent advice! I went to the bottom of the board and checked the resistance between the ends of RFC16. It was infinite, so I rewound RFC16 and ensured the leads were cleaned good. After reinstalling, I now have 4.~ votes at U6 pin 5, and 8.~ at pin 8. Pin 8 of the

[Elecraft] Looking for a P3

2018-09-27 Thread Doug Millar via Elecraft
Hi, I would like to buy a used P3 panadaptor. Does anyone know of one for sale?  VGA board would be a plus. Please reply privately to drzarko...@yahoo.com. Thanks, Doug K6JEY __ Elecraft mailing list Home:

Re: [Elecraft] K2 Alignment and Test, Part II issues

2018-09-27 Thread Don Wilhelm
Don, You apparently have a problem with the thermistor board - or the 8 volts to it. A "voltage rail" are those PC traces that carry voltage to various parts of the circuit. In the K2, there is one for 12 volts, another for 8 volts and another for 5 volts. On the schematic they are labeled

Re: [Elecraft] K2 Alignment and Test, Part II issues

2018-09-27 Thread Don Schroder
Don, Board U6 pin 5 Thank you for the suggestions! The DC voltage at RF Board U6 pin 5 is 0 volts. In fact, all pins of U6, except pin 6, are 0 volts. Pin 6 is less than 1 volt. I saw a bridge between C96 and RFC10, the schematic shows these two components connecting together, so that should be

Re: [Elecraft] K-Pod CTS to match VFO

2018-09-27 Thread Don Wilhelm
As I recall, most of the K-pod field testers thought the reduced CTS was beneficial given the placement of the knob. Of course, they were most all CW contesters who wanted a slower tuning rate. 73, Don W3FPR On 9/27/2018 10:07 AM, Art via Elecraft wrote: When the K-Pod first came out, it

Re: [Elecraft] K2 Alignment and Test, Part II issues

2018-09-27 Thread Don Wilhelm
Don, First check the DC voltage at RF Board U6 pin 5 - it should be 4 volts (or 1/2 the 8 volt regulator output voltage). If it is not correct, you have a problem with the thermistor board - most likely a solder bridge. You should have 8 volts at the thermistor board pin 8. If that is not

[Elecraft] K-Pod CTS to match VFO

2018-09-27 Thread Art via Elecraft
Hi all, When the K-Pod first came out, it was mentioned that the CTS of the K-Pod was 1/2 of the VFO. That is still the case. Case in point: Set VFO CTS to 200. K-Pod CTS is only 100. Could the developers PLEASE write the code to allow the K-Pod to operate at the same CTS as the VFO? It

Re: [Elecraft] K3 problem after latest sw update

2018-09-27 Thread pa0kv
I tuned into my inv-V with 8 Watt on 3.63 Mhz and connected a 1 meter wire as antenna on my HP frequency counter. The counter displayed 3.2177 Mhz ! An offset of approximately .412 Mhz Still no idea. Waiting on k3support@elecraft... Twan - pa0kv