[Elecraft] PROBLEM :Audio on CW lower than on SSB.

[Dick van Kuppevelt]

Hi ,

I noticed that the RX audio in CW-mode is about 3 s-points lower than when
switching to SSB. I checked with a noice-generator.
When I take the KSB2 out and bypass the w2 and w3 jumpers I get the same
s-meter level then when on SSB.
So there seems to be a problem with the KSB2 module filter switching.
I did the voltage check with the filter switching diodes and D10-11-12-13
are o.k. but D6-7-8-9 are way off , of what it should be. I checked all
components in the switching network around D6-7-8-9 but cannot find anything
wrong with it.
I am missing something here, but I don't know what it is.
Some advice, suggestions, etc. would be a great help.

73 de PA3BPV, Dick, The Netherlands, K2#1959