You can use the KAT-2 _OR_ the KAT-100, but not both. Remove the
KAT-2 from the K2 and your KAT-100 should work much better.
Essentially, the KAT-2 and KAT-100 respond to the same Auxbus
commands. If the KAt-2 is found on the bus, it takes precedence over
the KAT-100, which is exactly the situation you have. Removing the
KAT-2 should make things work properly.
On Aug 28, 2006, at 6:06 PM, N9KO wrote:
I just completed the KAT-100-1. When I started the Initial Tests
of the Alignment and Test Steps on Page 27 the ANT1 and LOW lights
on the KAT -100 light up, but there is no action from the relays on
the KAT-100 when I change bands. I only hear the relays on the
KAT2. When I change from ANT1 to ANT2 on the K2, the ANT1 light on
the KAT-100 remains lit. Also, when I press tune, the KAT2 relays
chatter, the K2 shows a SWR of 1.0 to 1 while the KAT-100's relays
are silent and the LEDs show RED, all of the way to the right. I
have the ATU setting on the K2 set to AUTO. Also, during this
process I upgraded myu firmware from 2.01h to 2.04p and IOC from
1.02 to 1.09.
1) The RF IN on the KAT-100 is connected to the KAT2 ANT1. I have
antennas connected to both ANT 1 and ANT 2.
2) I double-checked the Control cable from the male pins on one end
to the board mounting on the other end, both ways. By that I mean
from the KAT-100 male PINs to the board on the inside of the K2 and
vice versa. Everything OK.
3) I double-checked the resistance against the values on Page 17.
All were within norms, except for U5 pin 3 (67k vs. 45-55k
standard) and U5 pin 5 (104k vs. 45-55k standard).
4) I double-checked that all of the pins of U1 are properly seated.
5) Troubleshooting on page 34 mentions checking Z1 and R5. Both
are installed, but other than that I do not know what I should be
checking for.
How can I tell if U1 is healthy? Any suggestions on an approach to
tracking this down will be appreciated.
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-Jack Brindle, W6FB
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