K2 Internal Speaker Now Alive and Well

[Mike Monger]

Hi Fellow Elecrafters,

My K2's internal speaker is now alive and well.  I found the problem around noon Saturday and I really felt like a big dummy.  I had it plugged onto P5 of the control board instead of P5 on the RF board (behind the on/off switch).  And, I know how/why it happened.  So here is the run down.  As I stated in my initial post, I had messed up one of the crimp pins for the plug.  And, also, I had messed up the speaker wire and had to shorten it a bit and thought that I was going to need more speaker wire (so it would reach) and a new crimp pin.  But, I was really in no hurry to get those items since I use headphones most of the time.  
Anyway, I proceeded to finish assembly and did not read any more about the speaker installation.  I just jumped past anything concerning the speaker, finished the rig and started making contacts.  Then, when I got my internal battery option in on Friday and installed it, I discovered (amongst the mess on my bench) that I had an extra crimp pin for the plug.  I rechecked all my wiring for the internal speaker and external speaker jack (I did have all of that done before I messed up the pin) and all was well.  So, I put the new pin on and found that I was barely going to have enough wire to reach.  I glanced at the manual and saw that P5 was where I was to plug onto.  I looked at my wires, then glanced inside the rig for the closest two pin male plug, saw P5 on the control board.  And, said to myself, "There's P5 and it looks like I have just enough wire to reach it and it seems to be in perfect position for this plug".  So, plug it on/in I did.  And, as you know, I had no audio.  I rechecked my wiring again and still found it to be correct.  So, that is when I checked the archives to see if anyone else had had the same problem and then made my post to the group concerning the possibility of needing a new headphone jack.  
Anyway, I got started Saturday morning about 11:30 checking things out again, rechecked wiring again, jiggled wires, checked to see if anything could be shorting out etc etc.  Then, I started reading the manual for each step of the speaker installation.  Everything seemed to be right, orientation of the external speaker jack, copper wire here, other wire there, make sure of this or that, plug to P5.  I kept going over it again and again.  I could not see that I had done anything wrong.
Exasperated, I leaned back in my chair.  Thinking, "It has to be a bad "jack"."  Then, I tried to "chill" for a few minutes.

Well, (after my chill pill) I started reading the manual again and once more got to P5.  But, this time I saw/read where P5 was behind a switch.  I said to myself, "What? There ain't no stinking switch anywhere around P5."  I "fume" a little more and rock back in my chair, trying to "chill' again.  A few seconds pass.  I read it again.  What?? Huh?? P5, RF board, behind on/off switch.  What are they talking about?? P5 is on the Control Board.  I ought to know since I have looked at and hooked to it a multitude of times trying to get this stinking speaker to work.  I rock back in my chair again.  A few seconds pass.  I rock/lean forward and peer over the front panel and control board, "glaring" down upon the RF board (bottom, right hand side) and something was "glaring" back at me, another P5.  I plugged onto it and  the speaker worked.

The bottom line is this, "I developed "tunnel vision", so to speak.  And, was "locked on" to the first P5 I saw, that "appeared" to meet the needs of the speaker installation."  But, had I read and "digested" fully, what was written, I would not have had this problem.  Or, taken up space on this reflector.  My apologies go out to all.  And, hopefully, this post will maybe help someone else not make the same mistake that I did.

All My Best,
Mike
KT2E
K2 4777






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[Robert McGwier]

I looked for a while  for a wiring error in 4201 before I found I did
exactly the same thing.  I
also looked for low power for days and then Gary pointed out that the
bias resistor on the
bottom of the board (the one I marked as having been installed) was not
installed.  This is a
complex kit with many parts and "stuff happens".  Elecraft's secret
weapons are their novel
use of this exploder,  having Scott and Gary fix us up with lost parts
or building difficulties,
and the fantastic repeatability of the design.  

I agree with the tunnel vision part.  I definitely developed it on the
bias resistor probably
because it is somewhat painful to remove the bottom and look, (hindsight
being 20-20 and
all).  I did this several times during the course of events.  I found
building this to be a
good learning experience and while more difficult than my SB-110, DX40,
and DX60,
it was also more rewarding.

Bob
N4HY

Mike Monger wrote:

>Hi Fellow Elecrafters,
>
>My K2's internal speaker is now alive and well.  
>  
>

----------------------  snip
---------------------------------------------------------------

>The bottom line is this, "I developed "tunnel vision", so to speak.  And, was "locked on" to the first P5 I saw, that "appeared" to meet the needs of the speaker installation."  But, had I read and "digested" fully, what was written, I would not have had this problem.  Or, taken up space on this reflector.  My apologies go out to all.  And, hopefully, this post will maybe help someone else not make the same mistake that I did.
>
>All My Best,
>Mike
>KT2E
>K2 4777
>
>
>
>
>
>
>_______________________________________________
>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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[Kevin Rock]

What is an 'exploder'?
    Kevin.   KD5ONS


On Sun, 17 Apr 2005 18:10:26 +0000, Robert McGwier <[hidden email]>
wrote:

> Elecraft's secret weapons are their novel use of this exploder,  having
> Scott and Gary fix us up with lost parts or building difficulties, and
> the fantastic repeatability of the design.  Bob
> N4HY




--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.9.12 - Release Date: 4/15/2005

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[Robert McGwier]

Email Exploder is the ancient term for an email mailing list such as
this one.

Bob



Kevin Rock wrote:

> What is an 'exploder'?
>    Kevin.   KD5ONS
>
>
> On Sun, 17 Apr 2005 18:10:26 +0000, Robert McGwier
> <[hidden email]> wrote:
>
>> Elecraft's secret weapons are their novel use of this exploder,  
>> having Scott and Gary fix us up with lost parts or building
>> difficulties, and the fantastic repeatability of the design.  Bob
>> N4HY
>
>
>
>
>

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[Kevin Rock]

I started using the Internet in 1995 but have been using email programs
since 1973.  I have never heard the term used before.  Guess it must
predate my era.
    Kevin.




On Sun, 17 Apr 2005 18:34:32 +0000, Robert McGwier <[hidden email]>
wrote:

> Email Exploder is the ancient term for an email mailing list such as
> this one.
>
> Bob


--
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.308 / Virus Database: 266.9.15 - Release Date: 4/16/2005

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[Bud Rogers]

On Sunday 17 April 2005 13:38, Kevin Rock wrote:
> I started using the Internet in 1995 but have been using email
> programs since 1973.  I have never heard the term used before.  Guess
> it must predate my era.

That's about when I started.  I first began hearing the term 'exploder'
three or four years ago among the IS people in an all-Microsoft shop.  
I was under the impression that it was a fairly new term.

--
Bud Rogers <[hidden email]>
KD5SZ EM05vb K2 #4115
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[Bruce McLaughlin]

Ah . . . Murphy's law struck again.  Glad you beat Murphy into
submission at last!

Bruce - W8FU

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Mike Monger
Sent: Sunday, April 17, 2005 2:33 AM
To: [hidden email]
Subject: [Elecraft] K2 Internal Speaker Now Alive and Well

Hi Fellow Elecrafters,

My K2's internal speaker is now alive and well.  I found the problem
around noon Saturday and I really felt like a big dummy.  I had it
plugged onto P5 of the control board instead of P5 on the RF board
(behind the on/off switch).  And, I know how/why it happened.  So here
is the run down.  As I stated in my initial post, I had messed up one of
the crimp pins for the plug.  And, also, I had messed up the speaker
wire and had to shorten it a bit and thought that I was going to need
more speaker wire (so it would reach) and a new crimp pin.  But, I was
really in no hurry to get those items since I use headphones most of the
time.  
Anyway, I proceeded to finish assembly and did not read any more about
the speaker installation.  I just jumped past anything concerning the
speaker, finished the rig and started making contacts.  Then, when I got
my internal battery option in on Friday and installed it, I discovered
(amongst the mess on my bench) that I had an extra crimp pin for the
plug.  I rechecked all my wiring for the internal speaker and external
speaker jack (I did have all of that done before I messed up the pin)
and all was well.  So, I put the new pin on and found that I was barely
going to have enough wire to reach.  I glanced at the manual and saw
that P5 was where I was to plug onto.  I looked at my wires, then
glanced inside the rig for the closest two pin male plug, saw P5 on the
control board.  And, said to myself, "There's P5 and it looks like I
have just enough wire to reach it and it seems to be in perfect position
for this plug".  So, plug it on/in I did.  And, as you know, I had no
audio.  I rechecked my wiring again and still found it to be correct.
So, that is when I checked the archives to see if anyone else had had
the same problem and then made my post to the group concerning the
possibility of needing a new headphone jack.  
Anyway, I got started Saturday morning about 11:30 checking things out
again, rechecked wiring again, jiggled wires, checked to see if anything
could be shorting out etc etc.  Then, I started reading the manual for
each step of the speaker installation.  Everything seemed to be right,
orientation of the external speaker jack, copper wire here, other wire
there, make sure of this or that, plug to P5.  I kept going over it
again and again.  I could not see that I had done anything wrong.
Exasperated, I leaned back in my chair.  Thinking, "It has to be a bad
"jack"."  Then, I tried to "chill" for a few minutes.

Well, (after my chill pill) I started reading the manual again and once
more got to P5.  But, this time I saw/read where P5 was behind a switch.
I said to myself, "What? There ain't no stinking switch anywhere around
P5."  I "fume" a little more and rock back in my chair, trying to
"chill' again.  A few seconds pass.  I read it again.  What?? Huh?? P5,
RF board, behind on/off switch.  What are they talking about?? P5 is on
the Control Board.  I ought to know since I have looked at and hooked to
it a multitude of times trying to get this stinking speaker to work.  I
rock back in my chair again.  A few seconds pass.  I rock/lean forward
and peer over the front panel and control board, "glaring" down upon the
RF board (bottom, right hand side) and something was "glaring" back at
me, another P5.  I plugged onto it and  the speaker worked.

The bottom line is this, "I developed "tunnel vision", so to speak.
And, was "locked on" to the first P5 I saw, that "appeared" to meet the
needs of the speaker installation."  But, had I read and "digested"
fully, what was written, I would not have had this problem.  Or, taken
up space on this reflector.  My apologies go out to all.  And,
hopefully, this post will maybe help someone else not make the same
mistake that I did.

All My Best,
Mike
KT2E
K2 4777






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