Tnx for replies!
Have to check DC voltages first. But very sure I must to change U4 (RS-232
IC) and U1 (microcontroller) at least.
juha oh6os
--
Sent from: http://elecraft.365791.n2.nabble.com/
__
Elecraft mailing list
Home:
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
Sounds like the RS-232 chip in the amp may be fried, especially if the PC com
port it was connected to fried.
I’ve seen this in the public safety world. Lightning hit our phone lines coming
into a PC at the site and took out every com port (multi port). Also com port
on all equipment attached
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
4 matches
Mail list logo
