Kristina,
Are you reading too fast and overlooking a whole sentence in the manual?
The 'point B' is only a visual reference. You should actually measure
at pin 1 of U4.
73,
Don W3FPR
Kristina Wright wrote:
Ok, I wiggled some wires and now when I press TUNE it goes to the ATU.
But I still have the problem of only about 0.02 V at TP B. I've
checked both boards (a whole bunch of times) for shorts or unsoldered
pins and haven't found any. Any ideas of where to look next?
73,
Kristina KE7LUC
Kristina Wright wrote:
I'm putting together my KAT2 and having trouble with the Bridge Null
Adjustment (pg 16). When I first went through it, it worked fine until
step four on page 17, where I got well under the specified 3 or 4
volts. So I pulled it apart, checked everything, and reflowed T1. Now
I'm trying to adjust C55 again, but I can't seem to get it to go to
the ATU when I press TUNE. It flashes ATU briefly, then says Hi Cur,
then goes to P 4.3 or so.
Any suggestions?
Tom Hammond wrote:
1) RE-check your soldering... especially for possibly shorted
connections
(which do sometimes occur as a result of reflowing previously soldered
joints).
2) Ensure that you have the KAT2 re-plugged correctly and that ALL
pins of
the connectors are properly plugged in.
3) Ensure that the 10-pin cable plug is properly plugged into the
connector
on the CTRL PCB.
Can't be much wrong, but sometimes it doesn't take 'much' to make things
LOOK a lot worse that they really are.
Kevin Cozens wrote:
Some simple things to check are that you have a proper 50-ohm
termination on the antenna 1 connection of the KAT2. Check that you
haven't accidentally selected antenna 2 while the dummy load is on
antenna 1. You can work around the high current warning by reducing
power to about 1 watt or so until you get the adjustment close to
where it needs to be.
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