Re: [Elecraft] KDSP2 problem
Don, That was it. Thanks for your assistance as usual! You are so helpful, and please know it is appreciated by all of us Elecrafters. Thanks and 73, Mike N4JX - Original Message - From: "Don Wilhelm" <[EMAIL PROTECTED]> To: "Mike Geddes" <[EMAIL PROTECTED]> Cc: "Elecraft" Sent: Saturday, April 21, 2007 8:17 AM Subject: Re: [Elecraft] KDSP2 problem Mike, If the KDSP2 seems to be working properly, I must ask about the possibility of the LED being reversed. Shine a light on the top of the KDSP2 and look carefully at the LED - near the base you will find some reflective metal through the colored lens - there is a narrow wedge in that metal. If the wedge points toward the connector, the LED is mounted correctly, but if it points toward the edge of the board, it is mounted backwards. 73, Don W3FPR Mike Geddes wrote: Installed the KDSP2 module in my K2 this morning. During initial checkout, the LED light does not come on upon power up, or at any other time. The other steps on the initial checkout (p.18) seem to be working as specified. What does it mean when the LED does not come on? Is there any particular thing I should be checking or looking for? Is it possible that the module is defective? I double checked the connections to make sure the KDSP2 board was inserted into the control board jumpers correctly, and that the DSPx module was inserted in the KDSP2 board correctly. Any suggestions are appreciated. Tnx and 73, Mike N4JX ___ 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
Re: [Elecraft] KDSP2 problem
Mike, If the KDSP2 seems to be working properly, I must ask about the possibility of the LED being reversed. Shine a light on the top of the KDSP2 and look carefully at the LED - near the base you will find some reflective metal through the colored lens - there is a narrow wedge in that metal. If the wedge points toward the connector, the LED is mounted correctly, but if it points toward the edge of the board, it is mounted backwards. 73, Don W3FPR Mike Geddes wrote: Installed the KDSP2 module in my K2 this morning. During initial checkout, the LED light does not come on upon power up, or at any other time. The other steps on the initial checkout (p.18) seem to be working as specified. What does it mean when the LED does not come on? Is there any particular thing I should be checking or looking for? Is it possible that the module is defective? I double checked the connections to make sure the KDSP2 board was inserted into the control board jumpers correctly, and that the DSPx module was inserted in the KDSP2 board correctly. Any suggestions are appreciated. Tnx and 73, Mike N4JX ___ 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
[Elecraft] KDSP2 problem
Installed the KDSP2 module in my K2 this morning. During initial checkout, the LED light does not come on upon power up, or at any other time. The other steps on the initial checkout (p.18) seem to be working as specified. What does it mean when the LED does not come on? Is there any particular thing I should be checking or looking for? Is it possible that the module is defective? I double checked the connections to make sure the KDSP2 board was inserted into the control board jumpers correctly, and that the DSPx module was inserted in the KDSP2 board correctly. Any suggestions are appreciated. Tnx and 73, Mike N4JX ___ 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] KDSP2 Problem resolved
Last night I looked over the malfunctioning DSPx board and I believe that I found the problem causing the SSB low pass bandwidth problem that I had noticed with the board. There was a solder whisker causing a short between pins 77 (D17) and 78 (D18) I removed the solder using a pick and have tried the board and it seems to be working ok so far. Thanks to Don, Gary and Lyle for helpful suggestions 73, Bob Johansen WB2SRF ___ 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] Kdsp2 problem
Hi Don, The problem that I am experiencing is that when I completed the DSP board last night, I noticed that the default setting of the SSB DSP filter 1 (low pass filter) did not sound like its high frequency audio bandwidth was wide enough. The filter setting 2 default setting of 2.5 KHz had a higher frequency of noise content. When I tried to change the upper cut off frequency following the instuctions on page 26, I noticed that any setting greater than 2.5 through LPF resulted in a narrower noise bandwidth although the display changes normally according to the instructions. I have experimented with it further today and am experiencing the same problem. Also I have noticed that when I advance the low pass filter cutoff from display S1 00 2.5 to S1 .45 2.5 it sounds like I have selected a CW filter from the change in the noise bandwidth. S1 .40 2.5 sounds like the correct bandwidth. It is strange that the low frequency cutoff filter characteristics change very abruptly over 400 Hz. ___ 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
Re: [Elecraft] Kdsp2 Problem - Initial Checkout No Go
PeteLooks like Easter weekend is pretty slow for getting help with your problem. Guess the tekkies are out of pocket. Unfortunately, I have not gone down the DSP road yet, so I'm not much help. In fact, I ordered the DSP accessory & the A to B upgrade for my K2/100 (#1411) on Friday. Looks like you've provided some good trouble-shooting information. The wrong voltages on the U-1 must be indicating a problem somewhere. I had a problem with one of my options & I contacted Elecraft Tech help & they sent me a replacement IC since the problem sounded like a b/o IC. Sure enough that was the problem. Another way to ck for bad solder joints would be to use a digital camera & shoot some shots that you could print out or just look at on computer screen. Good luck, I'll be watching to see what the problem is. 73 de K5AVJ Lynn == Hi, I hope someone can help me out with my KDSP2. On page 18 during initial checkout of unit and at the "rtc " display, I am unable to turn it on. That is , EDIT followed by BAND doesn't turn unit on. On power up of K2, the LED does come on briefly and turns off. AFIL held shows "not installed". I went to trouble shoot section in manual and did everything under error message ( removed U1, checked for bent pins, unwanted solder bridges, parts installed properly and in correct placement, and voltages on U1. Turned power on and off with no change. I did have a KAF installed before the DSP2 and it worked very well with no problems. = ___ 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] Kdsp2 Problem - Initial Checkout No Go
Hi, I hope someone can help me out with my KDSP2. On page 18 during initial checkout of unit and at the "rtc " display, I am unable to turn it on. That is , EDIT followed by BAND doesn't turn unit on. On power up of K2, the LED does come on briefly and turns off. AFIL held shows "not installed". I went to trouble shoot section in manual and did everything under error message ( removed U1, checked for bent pins, unwanted solder bridges, parts installed properly and in correct placement, and voltages on U1. Turned power on and off with no change. I did have a KAF installed before the DSP2 and it worked very well with no problems. The voltages present on U1 are: PIN 5 = 5.02 V ( should be 0 ) Pin 14 = 0 V ( should be 5.0 v ) Pin 15 - 19 = 5.02 V ( should be 0 V ) Pin 20 - 24 = OK Voltages Pin 25 = 0.2 - 0.4 V (should be 0 V ) Pin 27 = 5.04 V( should be 0 V ) Pins 26 + 28 = 0 V OK K2 does have 2.04P and IOC 1.09 firmware upgrades. K2 was a version A ( pre-3000) and did A to B upgrade). This could be a Lyle Johnson solution but I'll take suggestions from anyone who has encountered a similar problem with their KDSP2. 73, Pete KB2OFC ___ 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
Re: [Elecraft] KDSP2 problem
Hello Tony! I get the same message no matter whether in CW or SSB modes. Then I suspect you have older DSP firmware. The current version, which supports the front panel shortcuts, is "Ctl 3.10" Please see the KDSP2 errata sheet on the Elecraft website in the Manuals section. 73, Lyle KK7P ___ 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
RE: [Elecraft] KDSP2 problem
Hi Lyle, I get the same message no matter whether in CW or SSB modes. N2TK, Tony -Original Message- From: Lyle Johnson [mailto:[EMAIL PROTECTED] Sent: Monday, June 13, 2005 1:50 PM To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] KDSP2 problem Hello Tony! > Tried the shortcuts listed below. I just get a message - "not inst". Yet the > DSP works fine. Any thoughts? I have software versions 2.04P, 1.09 > Keep in mind the front panel shortcut with the latest K2 firmware. > AFIL+REC will toggle the denoiser on and off without being in the DSP > menus, and AFIL+SPLIT will similarly toggle the automatic notch filter > on and off. If you are in CW mode, the notch will not work and you will get "not inst". In RTTY mode, neither the notch nor the denoiser will work. In USB or LSB mode, both shortcuts ought to work. Lyle KK7P ___ 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
Re: [Elecraft] KDSP2 problem
Hello Tony! Tried the shortcuts listed below. I just get a message - "not inst". Yet the DSP works fine. Any thoughts? I have software versions 2.04P, 1.09 > Keep in mind the front panel shortcut with the latest K2 firmware. > AFIL+REC will toggle the denoiser on and off without being in the DSP > menus, and AFIL+SPLIT will similarly toggle the automatic notch filter > on and off. If you are in CW mode, the notch will not work and you will get "not inst". In RTTY mode, neither the notch nor the denoiser will work. In USB or LSB mode, both shortcuts ought to work. Lyle KK7P ___ 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
RE: [Elecraft] KDSP2 problem
Tried the shortcuts listed below. I just get a message - "not inst". Yet the DSP works fine. Any thoughts? I have software versions 2.04P, 1.09 Tnx N2TK, Tony -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Lyle Johnson Sent: Thursday, June 09, 2005 8:32 PM To: Steven Pituch Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] KDSP2 problem > The DSP is incredible. Especially after I studied the manual and > fiqured out some of the basic procedures, like knocking the noise > reduction in and out quickly on CW, changing the center frequency, etc. Keep in mind the front panel shortcut with the latest K2 firmware. AFIL+REC will toggle the denoiser on and off without being in the DSP menus, and AFIL+SPLIT will similarly toggle the automatic notch filter on and off. Enjoy the KDSP2! 73, Lyle KK7P ___ 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
Re: [Elecraft] KDSP2 problem
The DSP is incredible. Especially after I studied the manual and fiqured out some of the basic procedures, like knocking the noise reduction in and out quickly on CW, changing the center frequency, etc. Keep in mind the front panel shortcut with the latest K2 firmware. AFIL+REC will toggle the denoiser on and off without being in the DSP menus, and AFIL+SPLIT will similarly toggle the automatic notch filter on and off. Enjoy the KDSP2! 73, Lyle KK7P ___ 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
Re: [Elecraft] KDSP2 problem
Aah, OK Lyle. Stupid, stupid, stupid, stupid, stupid me. I guess I should have read page 18. I was so careful reading the manual when I was building it, but I guess I got a bit lax after getting to the installation part. Thanks for the good advice. I am relieved that I didn't screw up the building of it. I lost the sidetone after changing the RTC setting but got it back after several tries. The DSP is incredible. Especially after I studied the manual and fiqured out some of the basic procedures, like knocking the noise reduction in and out quickly on CW, changing the center frequency, etc. Thanks a million, Steve, W2MY Lyle Johnson wrote: Be sure the RTC mode is ON or you won't be able to communicate with the DSP (initial Checkout, Page 18 of KDSP2 manual). ___ 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
Re: [Elecraft] KDSP2 problem
... I just installed the KDSP2, and based on the manual the auxbus isn't communicating with the dsp unit. I seem to be able to use the default filters, but when I hit "display" I still get the voltage and current readout. Also I think I was supposed to get a clock setting routine when I first powered up. Be sure the RTC mode is ON or you won't be able to communicate with the DSP (initial Checkout, Page 18 of KDSP2 manual). If the DSP chip itself is having a problem, there would be no audio. Lyle KK7P ___ 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] KDSP2 problem
Hi all, OK, I think I have all the upgrade modes working on my K2 #402. It was a lot more work than I thought it would be; lots of changes. The CW filters seem significantly better than before. And the SSB filter looks quite flat. However, I just installed the KDSP2, and based on the manual the auxbus isn't communicating with the dsp unit. I seem to be able to use the default filters, but when I hit "display" I still get the voltage and current readout. Also I think I was supposed to get a clock setting routine when I first powered up. Everything seemed to go together OK, except the width of the socket for the clock IC is significantly narrower than the IC pins. I had to actually bend the pins inwards in order to get them into the socket. That's the first time that has happened. I am studying the schematic now. Any suggestions? Also, what happens if I want to do a cal pll or something. Don't I need the freq counter probe plugged in to do that? Would I need to remove the DSP unit and then short out the connector where r18 and r19 are shown? As good as the radio was before the mods, its gonna be a killer once I get this dsp working. I'm impressed. Thanks, Steve, W2MY ___ 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
