Re: [Elecraft] K1 no audio

[wingman67 via Elecraft]

Ok I now have audio.I can hear "hiss" fairly loudly as well as strong
sidetone when I go into the stl menu.  I replaced C11 and audio sprung to
life.

I proceeded to wind L1 and installed it, then re-installed my filter board
and now I get the E42, "No VFO."  I can go into the menus and successfully
have the K1 see the two bands that the filter board support and can switch
between them, no problems but I can't proceed further due to the E42.  

The audio I hear is strong but is of course just "hiss" since the VFO isn't
working yet (therefore I don't hear anything other than the hiss and hence
the E42).

I was told that sometimes D17 installed backwards could cause this.  I
checked its orientation and it is correct.  I also checked soldering around
some of the other caps that some have said can be an issue and reflowed them
just to be safe.  

I am continuing to try tracing out the issue but any ideas on where else I
might look, on the offchance anyone else has encountered this same thing?



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K1-no-audio-tp7612521p7612529.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K1 no audio

[wingman67 via Elecraft]

Problem solved, thanks for the pointers Don!  In checking the RF board and
filter board over and over, I disassembled the front-panel board again,
resoldered pin 10 on J1 since it didn't look as good to me as it could have
been and then, as I went over everything I found an unsoldered leg on R11. 
I am normally extremely meticulous when it comes to building but this one
got past me!  Soldered that leg, re-assembled the FP assembly and hooked it
back up to the K1's RF and all is well.  VFO works and all tests pass.

So now I'm ready to start working on the TX section of the board.

Thanks again Don.



-
John Hines
--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K1-no-audio-tp7612521p7612533.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K1 no audio

[kg9hfr...@gmail.com]

John, great to hear.
Most of us have graduated to a 6” loop that is lighted.
Frank KG9H

> On Jan 11, 2016, at 10:48 AM, wingman67 via Elecraft 
>  wrote:
> 
> Problem solved, thanks for the pointers Don!  In checking the RF board and
> filter board over and over, I disassembled the front-panel board again,
> resoldered pin 10 on J1 since it didn't look as good to me as it could have
> been and then, as I went over everything I found an unsoldered leg on R11. 
> I am normally extremely meticulous when it comes to building but this one
> got past me!  Soldered that leg, re-assembled the FP assembly and hooked it
> back up to the K1's RF and all is well.  VFO works and all tests pass.
> 
> So now I'm ready to start working on the TX section of the board.
> 
> Thanks again Don.
> 
> 
> 
> -
> John Hines
> --
> View this message in context: 
> http://elecraft.365791.n2.nabble.com/K1-no-audio-tp7612521p7612533.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to kg9hfr...@gmail.com

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K1 no audio

[wingman67 via Elecraft]

lol!  Not a bad idea Frank!  :)

John
KD8UDZ



-
John Hines
--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K1-no-audio-tp7612521p7612535.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

[Elecraft] K1 no audio

[wingman67 via Elecraft]

I have recently built up a K1 to the point of the receiver alignment (page
36, 7 "Alignment and Test, Part 1").  Up until this point all of my test
points have been successful, voltages correct, etc.  When I power on the K1
I get the correct LED test pattern and then the E27/E42 error messages that
are expected.

However, when I begin going through the steps on page 36 all is well until I
get to the point on page 37 where I turn on the sidetone.  I access the stl
menu item, press-and-hold Menu and it comes up with 8 by default.  I can tap
up and down, exit the menu and go back in and the eeprom remembers my
settings.  I can turn the K1 off and back on, go back into the menus and
access the stl menu and it remembered my setting.  The only problem is I
hear nothing, either on the headphone jack or on the external speaker
connector.  Everything else on the transceiver seems to function properly
including turning on and off the attenuator, rit/xit, etc.  Just no sound of
any kind.

Just for grins I went ahead and installed the filter board to test that
portion of it and all of that worked perfectly.  The relays switch bands and
the display shows everything properly, no problems and of course with the
filter board installed the E27 goes away.  With the filter board installed,
I still hear nothing when I access the stl menu to tap up or down the
sidetone level.  I also hear absolutely no hiss.

Removing the filter board and powering back on I am back to the expected E27
and E42.  

It appears that everything else works completely as expected, considering
the point at which I am in construction.  The only issue is I have no audio
which also means I hear no sidetone when I access the stl menu.

I've spent many hours (roughly 7 as of this moment) going over both the top
and bottom of the RF board with a magnifying glass looking at each and every
connection and solder joint.  I did go ahead and re-flow several that I
thought maybe were suspect and re-soldered some others just to be safe.  I
paid special attention to the P1 connector and ensured each and every pin is
well soldered.

I then started working through the audio chain, starting from the
front-panel and working my way to the RF board.  

I verified:

1.  I hear sidetone on P1 pin 2
2.  I hear sidetone on Q11 drain (I had heard that could be a known issue,
but it wasn't)
3.  I hear sidetone on U3 pin 5
4.  I verified source and drain are not shorted on Q10
5.  I verified source and drain are not open on Q11

It seems like audio is getting to the amp stages but the K1 is completely
quiet (and I mean quiet, with absolutely none of the normal hiss you would
expect to hear).  I have absolutely nothing coming from the headphone jack
or the external speaker connector.

Any ideas on what/where else to check and see where my sound has gone?  Now
I am assuming, based on pages 36 and 37 of the manual, that I am at the
point where when I access the stl menu that turns on sidetone and that I
*should* be able to hear it.  If that is correct, the K1 is completely
silent.  Thought I'd pull back and see if anyone else has had a similar
issue or has some insight.

Thanks.

John 



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/K1-no-audio-tp7612521.html
Sent from the Elecraft mailing list archive at Nabble.com.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

[Elecraft] K1 with audio CW feedback?

[Andrew Moore]

I find the KX1's CW feedback announcements incredibly useful while
operating mobile.  Eric/Wayne - have you considered incorporating this
wonderful feature into a future firmware version for the K1?

I'm particularly impressed with how well it's implemented: it announces the
frequency only when the Band button is pressed; it doesn't feel the need to
announce the digits after the decimal point.  It says just enough - not too
little, not too much.



___
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