[Elecraft] KSB2 problems in K2 transceiver

[Mike K8CN]

Mark,

Pin 5 of U2 provides ALC threshold voltage to the emitter of Q1 on the KSB2
board.  The 5.89 V you measured on Pin 5 suggests that the DAC input
register B didn't properly load the data word from the MCU.  I would check
the solder joints on all U2 pins and Pins 14, 16 and 17 of the MCU socket.  

73,
Mike, K8CN



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