[Elecraft] K1 4-band board problem

Fri Mar 5 23:31:00 2004

Hi

Try redoing the 20 meter alignment. You may have aligned it to the image =
frequency. The trimmers will sometimes peak at two different settings. I =
use a WM-2 watt meter set on the 100 mW range and look for the meter to =
move when adjusting the trimmers. Then go to the next trimmer in the =
procedure and watch for an increase. As the power comes up I switch to a =
higher range on the watt meter

Don Brown
KD5NDB=20
  ----- Original Message -----=20
  From: James C. Hall, MD<mailto:[email protected]>=20
  To: [email protected]<mailto:[email protected]>=20
  Sent: Friday, March 05, 2004 9:57 PM
  Subject: [Elecraft] K1 4-band board problem

  Hello all:

  I finished a four band filter board to replace my 2-band board. All =
went
  well with the construction but when the alignment steps were =
undertaken, I
  ran into problems. First since my K1 was a Rev. D, I had to resolder =
R36 on
  the RF board. That being done, all went well except for 20M with a =
output of
  0.1 watt. All other bands tuned easily. So I'm left with what is =
specific to
  20M. I resoldered the crystal pins and ground, checked and resoldered =
relays
  K2, K5, and K6 and all surrounding capacitors, and the trimmer =
capacitors
  specific to 20M. Still no output on this band. I noticed on this band =
on the
  receiver alignment, that the AF output was much quieter than the other
  bands, but the trimmers did peak the noise.

  Little help please !!

  73, Jamie
  WB4YDL

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