[Elecraft] K2 No SSB output power with new SSB board fitted.

[M Bak]

Everything setup to the point of ‘Fine carrier Balance Adjustment. But no
RF output. The SSBA BAL adjustment worked fine so there must be a low level
SSB signal to be fed back to the Rx. Current jumps from 222mA to 398mA on
activating PTT. No increase with audio input, no S meter indication or
indication in wattmeter.



New SSB board swapped out with known working one from another rig. The
newly built board works fine in the other rig. Known good board does not
work in newly built rig. Stating the obvious the SSB boards are fine there
is something up with the new rig. CW works ok with full output power.





Mike is Elecraft MH4.

Continuity of AF pin1 confirmed up to pin5 of J11.

W2 and W3 removed, also C167.

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