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The ProSet - K2 Boom Headset - Left channel only...

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Clay Autery-2

The ProSet - K2 Boom Headset - Left channel only...

Anyone ever had a ProSet two fail to deliver two channel output when
everything is set up correctly (aka bad cable or failed R channel solder
joint at one end or the other)?

My Elmer has a set bought in April of this year and has never been able
to get right channel. I took it today to try on my K3s with known good
setup for 2-channel into phones (Sennheiser HD598SE).

Same problem on my radio... no right channel. Almost HAS to be 1)
solder joint failure on one of the wires to the driver, 2) a right
channel (+) solder failure at the 1/8" TRS, 2) failed right driver.
It's a non-coiled three cable-bonded cord... so I am assuming 3
conductors with shields for ground.

He's ordered a new cable, but I want to make sure it's not something we
have both not considered before replacing the cable. I guess he could
warranty repair, et al. but he doesn't want to be without a functional
headset for weeks.

73,

--
______________________
Clay Autery, KY5G
(318) 518-1389

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Don Wilhelm

Re: The ProSet - K2 Boom Headset - Left channel only...

Clay,

On your K3S, did you try plugging into the rear phones jack? You can do
that without any 1/8 inch to 1/4 inch adapter.

The resistance of each earpiece should be easy to check with your
ohmmeter and be revealing if there is a cord problem. The left channel
(tip) should compare with the right (ring) unless something is open or
shorted.

73,
Don W3FPR

On 7/24/2018 4:23 PM, Clay Autery wrote:

> Anyone ever had a ProSet two fail to deliver two channel output when
> everything is set up correctly (aka bad cable or failed R channel solder
> joint at one end or the other)?
>
> My Elmer has a set bought in April of this year and has never been able
> to get right channel. I took it today to try on my K3s with known good
> setup for 2-channel into phones (Sennheiser HD598SE).
>
> Same problem on my radio... no right channel. Almost HAS to be 1)
> solder joint failure on one of the wires to the driver, 2) a right
> channel (+) solder failure at the 1/8" TRS, 2) failed right driver. It's
> a non-coiled three cable-bonded cord... so I am assuming 3 conductors
> with shields for ground.
>

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Richard Wade

Re: The ProSet - K2 Boom Headset - Left channel only...

Do you have the config menu on your K3s item SPKR+PH set to YES or NO?
When I set that config item to YES then the audio to the right headphone is
muted and the speaker works. With NO selected I have audio to both
headphones and the speaker is muted.

I have this config setting set to M1 so that I can switch between speaker
and headphones quickly. If I am listening to speaker and want to go to
headphones there is always audio to the left phone and quick touch of M!
mutes the speaker and gives audio to both phones.

73,
Dick WM6G

On Tue, Jul 24, 2018 at 1:36 PM, Don Wilhelm <[hidden email]> wrote:

> Clay,
>
>
> On your K3S, did you try plugging into the rear phones jack? You can do
> that without any 1/8 inch to 1/4 inch adapter.
>
> The resistance of each earpiece should be easy to check with your ohmmeter
> and be revealing if there is a cord problem. The left channel (tip) should
> compare with the right (ring) unless something is open or shorted.
>
> 73,
> Don W3FPR
>
> On 7/24/2018 4:23 PM, Clay Autery wrote:
>
>> Anyone ever had a ProSet two fail to deliver two channel output when
>> everything is set up correctly (aka bad cable or failed R channel solder
>> joint at one end or the other)?
>>
>> My Elmer has a set bought in April of this year and has never been able
>> to get right channel. I took it today to try on my K3s with known good
>> setup for 2-channel into phones (Sennheiser HD598SE).
>>
>> Same problem on my radio... no right channel. Almost HAS to be 1)
>> solder joint failure on one of the wires to the driver, 2) a right channel
>> (+) solder failure at the 1/8" TRS, 2) failed right driver. It's a
>> non-coiled three cable-bonded cord... so I am assuming 3 conductors with
>> shields for ground.
>>
>> ______________________________________________________________
> 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
> Message delivered to [hidden email]
>

Clay Autery-2

Re: The ProSet - K2 Boom Headset - Left channel only...

In reply to this post by Don Wilhelm

Yep, tried the rear port without the 1/8 x 1/4 TRS adapter... same deal.

I know I can disassemble it and find a bad joint or isolate the inline
conductor break.... I was just making SURE before I turn the screws on
this STILL IN WARRANTY headset.... and not gonna do it without the
owner's permission first, too.

Good idea on the resistance check though.... step in the right direction.

Tip--> Sleeve = 199.98 Ohms
Ring--> Sleeve = no reading up through 2000 MegaOhms.... so... there's
an OPEN on one of the left channel lines.... Gonna have to take it apart
to track it down... It could be in a half dozen places.... OR still the
driver.

Thanks!

______________________
Clay Autery, KY5G
(318) 518-1389

On 24-Jul-18 15:36, Don Wilhelm wrote:

> Clay,
>
>
> On your K3S, did you try plugging into the rear phones jack? You can
> do that without any 1/8 inch to 1/4 inch adapter.
>
> The resistance of each earpiece should be easy to check with your
> ohmmeter and be revealing if there is a cord problem. The left
> channel (tip) should compare with the right (ring) unless something is
> open or shorted.
>
> 73,
> Don W3FPR
>
> On 7/24/2018 4:23 PM, Clay Autery wrote:
>> Anyone ever had a ProSet two fail to deliver two channel output when
>> everything is set up correctly (aka bad cable or failed R channel
>> solder joint at one end or the other)?
>>
>> My Elmer has a set bought in April of this year and has never been
>> able to get right channel. I took it today to try on my K3s with
>> known good setup for 2-channel into phones (Sennheiser HD598SE).
>>
>> Same problem on my radio... no right channel. Almost HAS to be 1)
>> solder joint failure on one of the wires to the driver, 2) a right
>> channel (+) solder failure at the 1/8" TRS, 2) failed right driver.
>> It's a non-coiled three cable-bonded cord... so I am assuming 3
>> conductors with shields for ground.
>>

Clay Autery-2

Re: The ProSet - K2 Boom Headset - Left channel only...

In reply to this post by Richard Wade

I tried ALL permutations... SPKR + PH, SPKR - PH, and the Tap 1 to do
the SW+ and SW-... Never left audio.

Just did a resistance comparison be W3FPR suggestion.... there is an
open in the left channel circuit somewhere OR a bad driver.

Thanks and 73,

______________________
Clay Autery, KY5G
(318) 518-1389

On 24-Jul-18 17:05, Richard Wade wrote:

> Do you have the config menu on your K3s item SPKR+PH set to YES or NO?
> When I set that config item to YES then the audio to the right
> headphone is muted and the speaker works. With NO selected I have
> audio to both headphones and the speaker is muted.
>
> I have this config setting set to M1 so that I can switch between
> speaker and headphones quickly. If I am listening to speaker and want
> to go to headphones there is always audio to the left phone and quick
> touch of M! mutes the speaker and gives audio to both phones.
>
> 73,
> Dick WM6G
>
> On Tue, Jul 24, 2018 at 1:36 PM, Don Wilhelm <[hidden email]
> <mailto:[hidden email]>> wrote:
>
> Clay,
>
>
> On your K3S, did you try plugging into the rear phones jack? You
> can do that without any 1/8 inch to 1/4 inch adapter.
>
> The resistance of each earpiece should be easy to check with your
> ohmmeter and be revealing if there is a cord problem. The left
> channel (tip) should compare with the right (ring) unless
> something is open or shorted.
>
> 73,
> Don W3FPR
>
> On 7/24/2018 4:23 PM, Clay Autery wrote:
>
> Anyone ever had a ProSet two fail to deliver two channel
> output when everything is set up correctly (aka bad cable or
> failed R channel solder joint at one end or the other)?
>
> My Elmer has a set bought in April of this year and has never
> been able to get right channel. I took it today to try on my
> K3s with known good setup for 2-channel into phones
> (Sennheiser HD598SE).
>
> Same problem on my radio... no right channel. Almost HAS to
> be 1) solder joint failure on one of the wires to the driver,
> 2) a right channel (+) solder failure at the 1/8" TRS, 2)
> failed right driver. It's a non-coiled three cable-bonded
> cord... so I am assuming 3 conductors with shields for ground
>

Phil Kane-2

Re: The ProSet - K2 Boom Headset - Left channel only...

In reply to this post by Clay Autery-2

On 7/24/2018 10:05 PM, Clay Autery wrote:

> I know I can disassemble it and find a bad joint or isolate the inline
> conductor break.... I was just making SURE before I turn the screws on
> this STILL IN WARRANTY headset.... and not gonna do it without the
> owner's permission first, too.

And of course the minute you do that, "still in warranty" becomes a
thing of the past. If it is still in warranty, why not get it exchanged
for one that works properly?

73 de K2ASP - Phil Kane
Elecraft K2/100 s/n 5402

From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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