[Elecraft] KPA100 Initial Test Problem
Eugene Worth
eworth at spamcop.net
Tue Oct 25 11:26:48 EDT 2011
Hello all:
I am building a remote KPA100 in an EC-2 enclosure. The KAT100-2 has already been built and tested correctly.
My K2 is S/N 5717 with firmware 2.04P.
Problem: All the test point voltages are nominal (+/-10%) except U1 pin 27. The voltage listed is 5.8 … I got 3.99 volts. Everything else in the section of initial tests is flawless.
U1 pin 20 = 5.04
U1 pin 28 = 5.56
U2 pin 10 = 13.65
U4 pin 1 = 13.65
U4 pin 11 = 5.04
All of the other values are 0 as noted in the checklist.
On initial power up, the K2 power supply voltage was 13.8 and current 0.36.
Any hints on where to look for the problem?
Thanks.
gene
WG7GW
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