[Elecraft] K3 ERR KEY/PTT Problem

[Andy Faber]

Don,
 Thanks.  I just did a full reload of the same firmware, but the symptoms 
remain the same.
 73, andy, ae6y

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From: "Don Wilhelm" <w3fpr at embarqmail.com>
Sent: Saturday, March 20, 2010 6:13 PM
To: "Andy Faber" <andrewfaber at ymail.com>
Cc: "elecraft at mailman.qth.net" <Elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K3 ERR KEY/PTT Problem

> Andy,
>
> It may be that you have a glitch in the firmware - yes, ERR PTT or ERR KEY 
> should only appear at power on time (although you might want to check to 
> be certain your power supply is not glitching off).
>
> I would suggest you try a firmware download - use K3 Utility, download the 
> latest release firmware and attempt to load it.  Be certain you are in 
> Advanced Mode and check all the boxes to force not only the MCU, but the 
> FPF and DSP firmware to load as well.
> If the firmware load from K3 Utility is not successful, try the steps to 
> Force a Firmware Download - see the K3 Utility help file or in the K3 
> manual.
>
> I won't guarantee the firmware load will fix your problem, but it is easy 
> to do and has some chance of fixing it.
>
> 73,
> Don W3FPR
>
> Andy Faber wrote:
>> Wayne, Eric and Gang,
>> I am planning to take my K3 to Aruba Tuesday night, but in testing it out 
>> on phone just now, I started getting ERR KEY messages, which change to 
>> ERR PTT if PTT is asserted.  The radio seems to receive ok but won't 
>> transmit.  The menus also don't appear.
>>   The manual says this is due to asserting key or ptt line in power up, 
>> but it happened when the radio was already on.
>>   Not sure of the firmware I'm using (can't communicate with the radio) 
>> but I think it's 3.83 and 2.54. The radio is Ser. 076.
>>   Any thoughts? Need to fix this quickly for WPX, or I'll have to go back 
>> to using our Pro2 (ugh!)
>>