[1000mp] No modulation from packet jack?

[Rich McAllister]

After some months I tried my AFSK setup that was working fine before, 
sound card in via the "packet" jack in back.  I try transmitting, but I 
get no indications on the ALC or power output that anything is 
happening. I can hear the tones if I turn MONI on, so they're getting to 
the audio input.  I turned up the MIC and RF PWR controls, so it's not 
those. Going to normal SSB settings and talking shows output as one 
would expect I suppose it's possible the 1000MP (original MP, not mark 
anything) has decided to ignore just the PKT jack (but after the point 
MONI is taken off??) but I always suspect cockpit error first (or 
second, after cables and connectors, but since I can hear the tones 
through monitor, I think that's ok.)  Does anybody have any idea what 
knob or setting I might have tweaked to get this behavior?

Rich, K6RFM