[Elecraft] K2 VCO-Test

Mon Jul 15 08:31:00 2002

Hi

Sorry but the little switch only affects the voltmeter function not the f=
requency counter so that is not your problem. You need to find out if the=
 counter is working on not. Measure the 4 MHZ oscillator. If you get a go=
od reading there then the signal at TP1 is low or non existent. Look for =
a bad solder joint or wrong component in the reference oscillator. If the=
 4 MHZ measurement does not work then check the counter probe. It is easy=
 to make it wrong. The most likely problem is reversed pins in the connec=
tor.

Speaking of the little switch. I think I will remove it and place a jumpe=
r across the pins so it is always in the battery check function. I don't =
now how many times I have had to remove the cover to switch it back becau=
se I accidentally bumped it when doing something in the radio. I know if =
I would leave the cover on it would never happen but you just can't leave=
 these little radios alone. There is always something you want to try or =
you want to show it off to someone. I guess you could put a little dab of=
 silicone rubber on the switch if you didn't want to remove it and jumper=
 it out. =20

I think the most common questions on the reflector are "I lost my sideton=
e" and "I get a low battery message" both caused by a switch in the wrong=
 position, one a software switch in the menu and the other the battery/vo=
ltmeter switch.

Don Brown
KD5NDB
----- Original Message -----
From: David Pratt
Sent: Sunday, July 14, 2002 11:48 PM
To: Karl-Heinz
Cc: [email protected]
Subject: Re: [Elecraft] K2 VCO-Test

In a recent message, Karl-Heinz <[email protected]> said....
>I am building K2 #2583 and have problems with the VCO-Test (Aligment and
>Test, Part II).
>I am connecting TP1 (yes. it's TP1) and reading only 0000 kHz. Do you ha=
ve
>an idea for Troubleshooting?

Yes, switch that little switch on the control board to the other
position, Karl-Heinz;  You have left it in the voltmeter setting.

73/72

David G4DMP
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