[Elecraft] K3 Line-In issues

[CAS]

Thanks to all for the suggestions and tests. Below are the results

MIC SEL was set to Line In to adjust volume - no effect so returned to 
mid-range setting of 30
CONFIG:LINE OUT was set at nor 10 - the default value - did not change 
this setting

I verified that the Line In and Line Out cables from the SignaLink were 
in the proper locations and tested both external audio sources and sinks 
- all worked fine.

I tested the K3 Headphone out - there was audio output. I fed the K3 
Line Out to an audio mixer and verified that there was output, but it 
was low.

I went back to the SignaLink and increased the volume using the front 
panel controls from what had been 30% full to 70% full for both TX and 
RX - I now had signal in and out.

Note: The SignaLink and the radio were physically connected exactly the 
same before and after the firmware upgrade, the only difference was the 
firmware change. The 30% setting is what I had been using prior to the 
upgrade. Now I need to increase both the gain on the SignaLink and the 
audio output from the computer to get to the same output level from the 
radio as pre-upgrade so am wondering if the gain settings/cals have 
changed. I should note that the previous firmware was likely 4+ years 
old when I did the upgrade. Unfortunately, I did not either backup or 
note the previous versions.

Thanks to all for the assistance,
-Corky

On 3/5/2017 15:43 PM, Don Wilhelm wrote:
> Corky,
>
> It is doubtful that a firmware upgrade is to blame.  If it were the 
> firmware, we would have seen many reports of similar failure.
> What did you plug/unplug since it worked last?  A firmware upgrade 
> does not change settings in the K3.
>
> Do you have the Line-in and Line out cables reversed?  The Signalink 
> Line Out goes to the K3 Line In, and the K3 line out goes to the 
> Signalink Line in.
>
> Connect the Signalink Line out to an audio amplifier and from your 
> data mode application, do a "transmit" - do you hear audio tones? If 
> not check your software and the Signalink.
>
> 73,
> Don W3FPR
>
> On 3/5/2017 3:04 PM, CAS wrote:
>> I have been using my K3 with a SignaLink USB for some time without
>> issue. This last week I had everything working and then did a firmware
>> upgrade to the latest version. I now get nothing in or out of the
>> Line-In/Line-Out ports on the back of the radio. The microphone seems to
>> work fine, but I am no longer able to work digital using the ports on
>> the back
>>
>
>