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K3 no mod from FP conn

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Jan Erik Holm-2

K3 no mod from FP conn

Before I hassle elecraft support maybe someone on
the list can come up with something.

Just put together a new K3 and I can´t get any mic
connection to the FP connector, i e no modulation.
It works ok from the rear connector.

I checked Config / Main and don´t seem to find any
errors. Is there anything I could have forgot? Or
perhaps it´s just plain faulty.

The bias is not the issue, it´s turned off.

One thing, when I measure on the mic audio pin on
the connector I seem to have 5 Volts, that puzzles me.
I have not tried to measure on the rear connector
when that one is switched on.

Jim SM2EKM
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Guy, K2AV

Re: K3 no mod from FP conn

When on MENU:MIC SEL , and with it set to FP.L or FP.H, tapping "2" should
toggle the bias on and off. 73, Guy.

On Fri, Nov 16, 2012 at 9:40 AM, Jan Erik Holm <[hidden email]> wrote:

> Before I hassle elecraft support maybe someone on
> the list can come up with something.
>
> Just put together a new K3 and I can´t get any mic
> connection to the FP connector, i e no modulation.
> It works ok from the rear connector.
>
> I checked Config / Main and don´t seem to find any
> errors. Is there anything I could have forgot? Or
> perhaps it´s just plain faulty.
>
> The bias is not the issue, it´s turned off.
>
> One thing, when I measure on the mic audio pin on
> the connector I seem to have 5 Volts, that puzzles me.
> I have not tried to measure on the rear connector
> when that one is switched on.
>
> Jim SM2EKM
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

______________________________________________________________
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Jan Erik Holm-2

Re: K3 no mod from FP conn

OK Guy,

Well if it works from the rear bias must be off....or???

I have in CONFIG "mic bnd" off ( I think it was).

But will try this tapping "2"

/Jim
-----------
On 2012-11-16 17:01, Guy Olinger K2AV wrote:

> When on MENU:MIC SEL , and with it set to FP.L or FP.H, tapping "2"
> should toggle the bias on and off. 73, Guy.
>
> On Fri, Nov 16, 2012 at 9:40 AM, Jan Erik Holm <[hidden email]
> <mailto:[hidden email]>> wrote:
>
> Before I hassle elecraft support maybe someone on
> the list can come up with something.
>
> Just put together a new K3 and I can´t get any mic
> connection to the FP connector, i e no modulation.
> It works ok from the rear connector.
>
> I checked Config / Main and don´t seem to find any
> errors. Is there anything I could have forgot? Or
> perhaps it´s just plain faulty.
>
> The bias is not the issue, it´s turned off.
>
> One thing, when I measure on the mic audio pin on
> the connector I seem to have 5 Volts, that puzzles me.
> I have not tried to measure on the rear connector
> when that one is switched on.
>
> Jim SM2EKM

Don Wilhelm-4

Re: K3 no mod from FP conn

Jim,

The MIC SEL menu item is found in the main menu. The entry in the
CONFIG menu is MIC BTN which is for the :MIC BUTTONS - that is the up
and down buttons if they are present.

73,
Don W3FPR

On 11/16/2012 11:11 AM, Jan Erik Holm wrote:

> OK Guy,
>
> Well if it works from the rear bias must be off....or???
>
> I have in CONFIG "mic bnd" off ( I think it was).
>
> But will try this tapping "2"
>
> /Jim
>

Jan Erik Holm-2

Re: K3 no mod from FP conn

Yes MIC BTN....understand, it´s off anyway.

MIC SEL....yes I know.

I was looking in all menus for the bias since I was
thinking that it was the culprit but didn´t find it.
However since it works from the rear panel connector
and not the FP connector can it still be the bias?

/Jim
-------
On 2012-11-16 17:52, Don Wilhelm wrote:

> Jim,
>
> The MIC SEL menu item is found in the main menu. The entry in the
> CONFIG menu is MIC BTN which is for the :MIC BUTTONS - that is the up
> and down buttons if they are present.
>
> 73,
> Don W3FPR
>
> On 11/16/2012 11:11 AM, Jan Erik Holm wrote:
>> OK Guy,
>>
>> Well if it works from the rear bias must be off....or???
>>
>> I have in CONFIG "mic bnd" off ( I think it was).
>>
>> But will try this tapping "2"
>>
>> /Jim
>>
>
>

Guy, K2AV

Re: K3 no mod from FP conn

You have not yet mentioned tapping "2" with MAIN:MIC SEL on to toggle the
bias. The bias for FP.x and the bias for rP.x are independent and set by
tapping "2" when you have either of them selected.

The bias on the front pin should toggle on and off with the menu display
going back and forth between "FP.x bIAS" and "FP.x " .

Does it not do this?

73, Guy.

On Fri, Nov 16, 2012 at 1:17 PM, Jan Erik Holm <[hidden email]> wrote:

> Yes MIC BTN....understand, it´s off anyway.
>
> MIC SEL....yes I know.
>
> I was looking in all menus for the bias since I was
> thinking that it was the culprit but didn´t find it.
> However since it works from the rear panel connector
> and not the FP connector can it still be the bias?
>
> /Jim
> -------
> On 2012-11-16 17:52, Don Wilhelm wrote:
> > Jim,
> >
> > The MIC SEL menu item is found in the main menu. The entry in the
> > CONFIG menu is MIC BTN which is for the :MIC BUTTONS - that is the up
> > and down buttons if they are present.
> >
> > 73,
> > Don W3FPR
> >
> > On 11/16/2012 11:11 AM, Jan Erik Holm wrote:
> >> OK Guy,
> >>
> >> Well if it works from the rear bias must be off....or???
> >>
> >> I have in CONFIG "mic bnd" off ( I think it was).
> >>
> >> But will try this tapping "2"
> >>
> >> /Jim
> >>
> >
> >
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Don Wilhelm-4

Re: K3 no mod from FP conn

I recall that some posts ago, you said you have 5 volts on pin 1 of the
front mic jack. That fact alone says bias is set on for the front mic.

Go to the MAIN MENU : MIC SEL entry
Then select FP.x (x = H or L)
You will likely see "bIAS" in the display - Tap the "2" button to turn
it off.

Your dynamic microphone does not need bias, and may in fact not work
with bias turned on. Some dynamic microphones can be damaged by
applying bias to them.
Even if they are not damaged, they certainly will "sound funny" with
bias turned on.

73,
Don W3FPR

On 11/16/2012 3:56 PM, Guy Olinger K2AV wrote:

> You have not yet mentioned tapping "2" with MAIN:MIC SEL on to toggle the
> bias. The bias for FP.x and the bias for rP.x are independent and set by
> tapping "2" when you have either of them selected.
>
> The bias on the front pin should toggle on and off with the menu display
> going back and forth between "FP.x bIAS" and "FP.x " .
>
> Does it not do this?
>
> 73, Guy.
>
> On Fri, Nov 16, 2012 at 1:17 PM, Jan Erik Holm <[hidden email]> wrote:
>
>> Yes MIC BTN....understand, it´s off anyway.
>>
>> MIC SEL....yes I know.
>>
>> I was looking in all menus for the bias since I was
>> thinking that it was the culprit but didn´t find it.
>> However since it works from the rear panel connector
>> and not the FP connector can it still be the bias?
>>
>> /Jim
>> -------
>> On 2012-11-16 17:52, Don Wilhelm wrote:
>>> Jim,
>>>
>>> The MIC SEL menu item is found in the main menu. The entry in the
>>> CONFIG menu is MIC BTN which is for the :MIC BUTTONS - that is the up
>>> and down buttons if they are present.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>> On 11/16/2012 11:11 AM, Jan Erik Holm wrote:
>>>> OK Guy,
>>>>
>>>> Well if it works from the rear bias must be off....or???
>>>>
>>>> I have in CONFIG "mic bnd" off ( I think it was).
>>>>
>>>> But will try this tapping "2"
>>>>
>>>> /Jim
>>>>
>>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Jan Erik Holm-2

Re: K3 no mod from FP conn

In reply to this post by Guy, K2AV

Sorry I didn´t. Yes I did do that and then bias turns on of course.
Thanks for the advice, I didn´t know about that command. I never
ever use bias with my microphones. In the first place I was
thinking maybe bias was on as default, this wasn´t the case with
my first K3. Indeed when tapping "2" BIAS comes up in the display.
However it wasn´t logical, if the bias was on, that when switching
to the rear panel connector it did work and not from the FP connector.
I´m sorry if I don´t express myself clear enough but this isn´t my
language of birth you know.
Anyway at this point I think it is the FP connector that hasn´t
mated correctly (as Lyle pointed out). This seems logical since
in the first place I was missing some stand off´s that holds the
DSP board, this I didn´t mention. However I did put the stuff together
anyway, it seemed to connect OK and I was looking at all the connector
pins etc etc but I´m sure I missed something (obviously).
As soon as I get the standoffs I will take it apart and remount
everything again, then we will see.
Again thanks everyone for the help, appreciate it.

73 Jim SM2EKM
--------------------------
On 2012-11-16 21:56, Guy Olinger K2AV wrote:

> You have not yet mentioned tapping "2" with MAIN:MIC SEL on to toggle
> the bias. The bias for FP.x and the bias for rP.x are independent and
> set by tapping "2" when you have either of them selected.
>
> The bias on the front pin should toggle on and off with the menu display
> going back and forth between "FP.x bIAS" and "FP.x " .
>
> Does it not do this?
>
> 73, Guy.
>
> On Fri, Nov 16, 2012 at 1:17 PM, Jan Erik Holm <[hidden email]
> <mailto:[hidden email]>> wrote:
>
> Yes MIC BTN....understand, it´s off anyway.
>
> MIC SEL....yes I know.
>
> I was looking in all menus for the bias since I was
> thinking that it was the culprit but didn´t find it.
> However since it works from the rear panel connector
> and not the FP connector can it still be the bias?
>
> /Jim
> -------
> On 2012-11-16 17:52, Don Wilhelm wrote:
> > Jim,
> >
> > The MIC SEL menu item is found in the main menu. The entry in the
> > CONFIG menu is MIC BTN which is for the :MIC BUTTONS - that is the up
> > and down buttons if they are present.
> >
> > 73,
> > Don W3FPR
> >
> > On 11/16/2012 11:11 AM, Jan Erik Holm wrote:
> >> OK Guy,
> >>
> >> Well if it works from the rear bias must be off....or???
> >>
> >> I have in CONFIG "mic bnd" off ( I think it was).
> >>
> >> But will try this tapping "2"
> >>
> >> /Jim
> >>
> >
> >
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email] <mailto:[hidden email]>
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>

Don Wilhelm-4

Re: K3 no mod from FP conn

Jim,

Yes, I understand the language problem. Sorry that I cannot communicate
in your native tongue.

There is an independent bias setting for the each microphone jack.

Since your microphones do not require bias, make certain bias is set not
turned on (indicated by a blank in the MIC SEL menu) for both the front
panel and the rear panel microphone jacks.

73,
Don W3FPR

On 11/16/2012 4:34 PM, Jan Erik Holm wrote:

> Sorry I didn´t. Yes I did do that and then bias turns on of course.
> Thanks for the advice, I didn´t know about that command. I never
> ever use bias with my microphones. In the first place I was
> thinking maybe bias was on as default, this wasn´t the case with
> my first K3. Indeed when tapping "2" BIAS comes up in the display.
> However it wasn´t logical, if the bias was on, that when switching
> to the rear panel connector it did work and not from the FP connector.
> I´m sorry if I don´t express myself clear enough but this isn´t my
> language of birth you know.
> Anyway at this point I think it is the FP connector that hasn´t
> mated correctly (as Lyle pointed out). This seems logical since
> in the first place I was missing some stand off´s that holds the
> DSP board, this I didn´t mention. However I did put the stuff together
> anyway, it seemed to connect OK and I was looking at all the connector
> pins etc etc but I´m sure I missed something (obviously).
> As soon as I get the standoffs I will take it apart and remount
> everything again, then we will see.
> Again thanks everyone for the help, appreciate it.
>
> 73 Jim SM2EKM
> --------------------------
> On 2012-11-16 21:56, Guy Olinger K2AV wrote:
>> You have not yet mentioned tapping "2" with MAIN:MIC SEL on to toggle
>> the bias. The bias for FP.x and the bias for rP.x are independent and
>> set by tapping "2" when you have either of them selected.
>>
>> The bias on the front pin should toggle on and off with the menu display
>> going back and forth between "FP.x bIAS" and "FP.x " .
>>
>> Does it not do this?
>>
>> 73, Guy.
>>
>> On Fri, Nov 16, 2012 at 1:17 PM, Jan Erik Holm <[hidden email]
>> <mailto:[hidden email]>> wrote:
>>
>> Yes MIC BTN....understand, it´s off anyway.
>>
>> MIC SEL....yes I know.
>>
>> I was looking in all menus for the bias since I was
>> thinking that it was the culprit but didn´t find it.
>> However since it works from the rear panel connector
>> and not the FP connector can it still be the bias?
>>
>> /Jim
>> -------
>> On 2012-11-16 17:52, Don Wilhelm wrote:
>> > Jim,
>> >
>> > The MIC SEL menu item is found in the main menu. The entry in the
>> > CONFIG menu is MIC BTN which is for the :MIC BUTTONS - that is the up
>> > and down buttons if they are present.
>> >
>> > 73,
>> > Don W3FPR
>> >
>> > On 11/16/2012 11:11 AM, Jan Erik Holm wrote:
>> >> OK Guy,
>> >>
>> >> Well if it works from the rear bias must be off....or???
>> >>
>> >> I have in CONFIG "mic bnd" off ( I think it was).
>> >>
>> >> But will try this tapping "2"
>> >>
>> >> /Jim
>> >>
>> >
>> >
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email] <mailto:[hidden email]>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>