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K2 restistance check.

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John-22

K2 restistance check.

Hello all.

I am reading 50 ohms at U6 pin 8 instead of the manual >100 ohms figure.

Can someone please tell me where I may look to find a problem? The rig fires up and nothing gets warm and all hold their smoke.

Thanks.

John.

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Don Wilhelm-4

Re: K2 restistance check.

John,

I assume you mean U6 on the RF Board.
Do you have the Control Board plugged in? You should not for this
resistance check.

Unfortunately, no one answer can be given. That point is the 8B voltage
rail, and there are many things connected to it - the problem can be at
any of them. I suggest you download the K2 manual and using the Find
function in Adobe Reader, go over the schematic and identify all the
components that are connected to the 8B rail. Then check each one of
them on the RF Board. Look for solder splashes that might be shorting
this circuit to any other circuit. Check the values of all components
you identified, and be certain the ICs, transistors and diodes are
oriented correctly - the Parts Placement diagram is a big aid in
determining component orientation.

Good luck with it.
73,
Don W3FPR

John wrote:

> Hello all.
> I am reading 50 ohms at U6 pin 8 instead of the manual >100 ohms figure.
> Can someone please tell me where I may look to find a problem? The
> rig fires up and nothing gets warm and all hold their smoke.
> Thanks.
> John.
>
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