XV222 tune-up issues
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I am using an Icom 706MKIIG (It will be replaced with my K2 at some when
I have time put the K2 together) to drive an XV222. I am working through the tune-up procedures part 5 and 6. My test voltage at TP5 will never hit 1vdc which seems odd. RF is making it to the transverter (I have a watt meter in-line and I can light up D10 with the adjustment of R22. But for what ever reason the voltage at TP5 is VERY low. (I checked this with two DVM) Where should I be looking to try to trouble shoot this? Thanks, JH -- John Hoaglun NG0R - EN25 http://www.hoaglun.com -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.17.13/1214 - Release Date: 1/8/2008 1:38 PM _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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I figured out my tune-up issue. After some pondering, checking that all
of the pieces were in the right spot and looking at the data about the test points in the back of the book I figured out that I needed to tweak R39. Once I did that I started getting RF output and then the rest of the tune started working MUCH better. R39 need to be adjusted higher than the 20mv @ TP5 that is listed in the book. That was the magic for me. I will be wiring it up tonight into the station so that I can try to get it tested on the air tomorrow night. We are a little over a week from the Jan VHF contest and I am still building things. 73 -- John Hoaglun NG0R - EN25 http://www.hoaglun.com -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.17.13/1214 - Release Date: 1/8/2008 1:38 PM _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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Greetings all, and FWIW:
Downloaded the new K3 firmware utility v 1.1.1.7 and installed it, and then started a firmware download for the new K3 firmware 1.58/1.48 by clicking on "Send all new firmware to K3". The MCU firmware downloaded OK; the DSP download ran until three bars showed in the progress indicator, and then Windows XP blue-screened, leaving the K3 disabled with a DSP error. I tried this several times and got the same result at about the same point in the download. Then I tried lowering the baud rate of the K3's serial port from 38400 to 9600, and was able to get the DSP firmware loaded, though it took a looooong time. Don't know what changed, but I've done several firmware downloads previously at 38400 and never had a problem. No other hardware/software changes have been done on the PC for some time. Wonder if anybody else has experienced something like this with the new version of the K3 utility? I also notice that while the download is running, the K3 display repeats "new K3 utility required" over and over, but often sending only a few characters and then starting over again. Don't know if this is significant, but...... 73, Van W1WCG ----- Original Message ----- From: "John Hoaglun" <[hidden email]> To: "Elecraft List" <[hidden email]> Sent: Wednesday, January 09, 2008 11:10 PM Subject: [Elecraft] XV222 tune-up issues Solved >I figured out my tune-up issue. After some pondering, checking that all of >the pieces were in the right spot and looking at the data about the test >points in the back of the book I figured out that I needed to tweak R39. >Once I did that I started getting RF output and then the rest of the tune >started working MUCH better. R39 need to be adjusted higher than the 20mv @ >TP5 that is listed in the book. That was the magic for me. > > I will be wiring it up tonight into the station so that I can try to get > it tested on the air tomorrow night. > > We are a little over a week from the Jan VHF contest and I am still > building things. > > 73 > > -- > > John Hoaglun > NG0R - EN25 > http://www.hoaglun.com > > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: > 269.17.13/1214 - Release Date: 1/8/2008 1:38 PM > > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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 |
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Ouch!
Please visit your USB to Serial adapter manufacturer's driver web site and see if your USB adapter drivers are out of date. If you're using the Elecraft KUSB, the Prolific web site link is in the K3 Utility's Help. I've heard a few reports of blue screen problems and all were resolved by the current Prolific drivers. The K3 Utility is using just the standard Win32 Serial I/O API, but sometimes responses don't come back when expected, and the CancelIo I need to issue is not handled well by some drivers. This doesn't show up unless there's some other communications problem. If you can, I'd be interested in the event log entry that corresponds to your blue screen event. The event viewer can be launched from a command line with "eventvwr". I'll look again at the code that checks for a new utility version requirement. Maybe the end-of-year wraparound exposed a problem. Please let us know of bugs like this through [hidden email] as well. 73 de Dick, K6KR -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Van W1WCG Sent: Friday, January 11, 2008 7:35 AM To: [hidden email] Subject: [Elecraft] firmware download issue Greetings all, and FWIW: Downloaded the new K3 firmware utility v 1.1.1.7 and installed it, and then started a firmware download for the new K3 firmware 1.58/1.48 by clicking on "Send all new firmware to K3". The MCU firmware downloaded OK; the DSP download ran until three bars showed in the progress indicator, and then Windows XP blue-screened, leaving the K3 disabled with a DSP error. I tried this several times and got the same result at about the same point in the download. Then I tried lowering the baud rate of the K3's serial port from 38400 to 9600, and was able to get the DSP firmware loaded, though it took a looooong time. Don't know what changed, but I've done several firmware downloads previously at 38400 and never had a problem. No other hardware/software changes have been done on the PC for some time. Wonder if anybody else has experienced something like this with the new version of the K3 utility? I also notice that while the download is running, the K3 display repeats "new K3 utility required" over and over, but often sending only a few characters and then starting over again. Don't know if this is significant, but...... 73, Van W1WCG ----- Original Message ----- From: "John Hoaglun" <[hidden email]> To: "Elecraft List" <[hidden email]> Sent: Wednesday, January 09, 2008 11:10 PM Subject: [Elecraft] XV222 tune-up issues Solved >I figured out my tune-up issue. After some pondering, checking that all of >the pieces were in the right spot and looking at the data about the test >points in the back of the book I figured out that I needed to tweak R39. >Once I did that I started getting RF output and then the rest of the tune >started working MUCH better. R39 need to be adjusted higher than the 20mv @ >TP5 that is listed in the book. That was the magic for me. > > I will be wiring it up tonight into the station so that I can try to get > it tested on the air tomorrow night. > > We are a little over a week from the Jan VHF contest and I am still > building things. > > 73 > > -- > > John Hoaglun > NG0R - EN25 > http://www.hoaglun.com > > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: > 269.17.13/1214 - Release Date: 1/8/2008 1:38 PM > > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > 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: [hidden email] 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: [hidden email] 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 |
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