Juha,

Whenever I had a lightning hit KPA100 to repair, I always replaced all the active devices (including all diodes) in the KPA100. Even if the devices are not currently failing, there is a good chance that they have been stressed and will fail later.

If you are using a USB to serial adapter, that was likely damaged too.

73,
Don W3FPR

On 7/1/2019 6:30 AM, Juha - oh6os wrote:
Hello,

Yes, all cables was connected during the first lightning bolt nearby.

Now K2/10W is ok! All work fine, luckily.

But with KPA100:

1) Metering (K2 LED paragraph) do not show anything.
2) I get 10W and 100W output, but can't adjustable power.
3) KPA100 don't talk with computer, yes computers COM port is broken too.
But I tested with another working COM and the same situation; don't work.
4) Pressing TUNE K2 show "0.1  9.9-1" (10W) and 1  1.0-1 (100W).

I replaced D16 and D17 on KPA100. Nothing changed.

juha oh6os

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