[Elecraft] K3 off frequency?

[Rajiv Dewan]

Thanks Dave.  This is very helpful. I will check this for sure. 

Raj

Sent from my iPhone

> On Oct 7, 2020, at 3:57 PM, David Olean <k1whs at metrocast.net> wrote:
> 
> Hello Raj,
> 
> I had a  K3 die and it was due to the 8 volt regulator going belly up. Before you do anything, check the voltages out of those regulators that are bolted to one of the side panels.  Lack of 8 volts kills the synthesizer.  I made a few notes when I did the repair. I have attached my notes to this message. Possibly it may be of help to you. I showed where the synthesizer frequency outputs are and what levels to expect.  The K3 I fixed was also a low serial number around 375 as I recall.
> 
> 73
> 
> Dave K1WHS
> 
>> On 10/7/2020 11:26 AM, Rajiv Dewan via Elecraft wrote:
>> My K3 (with all S upgrades, ser #170) stopped working over the weekend.  I noticed that on 80m, while the frequency on the rig was 3574, the frequency reported by KAT500 was 3152 (or so).   No output on any other band.  I then checked reception of WWV - no reception of the 10Mhz signal.  I fed in a -50dBm signal at 3574KHz.  No reception.
>> 
>> I am going to crack the case on the weekend.
>> 
>> The only think I can think of is that something has shaken loose as the rig was transported by car a while ago.  Given the odd frequency, I am thinking that it may in the LO chain.
>> 
>> Any thoughts?
>> 
>> Raj, N2RD
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> <K3 TROUBLESHOOTING NOTES.docx>