[Elecraft] KSB2 SSB Adapter problem

[Håkan Olsson]

I have just put together the KSB2 SSB ADAPTER and I have problems.

Referring to the manual on page 15 “Initial Test” the last paragraph 
“Verify that the K2 performs...” I do not get any sound in the 
loudspeaker, or the sound I get is very very muted. I can hear some very 
faint - both CW and SSB – signals but only when the volume is turned up 
to max.

Else there is no problem doing the “BFO Test”, “Receive-Mode SSB Filter 
Test” and “BFO Setup for LSB/USB”

I have checked the voltages as seen on page 23 in the manual and found 
the following anomalies in receive mode:

U1-21... zero volt (should be 5.8)
U2-5.... 6.0 volt (should be 0.6)
U4-3.... 6.0 volt (should be 0.6)

D10-D13 and D6-D9... no voltage in receive mode.

So, what could be the matter?

73 de
Håkan / SM6EQO