Worked RTTY fime Thursday night - started to work a W1AW on RTTY last night and PTT was working but only carrier no FSK. Using direct FSK not AFSK.
FSK D confirmed on menu. Shorting FSK pin 4 to ground - no freq change - open circuit voltage on pin 4 about 3.6 volts but source impedance VERY high - I can pull it way down with just leakage of my fingers on the connector .Pulled connector and checked DCR from the RCA jack dongle I made for PTT, KEY OUT , AUX , and FSK and shows solid connection to pin 4.
Did an EEINT and put in previous config setup - no change - did another EEINT and put in current setup - no change.
Am still crosseyed from trying to trace where the FSKD (think its called DIGI1) goes to - was hoping maybe a little SMD xsistor but looks like its into an IC .
Any idees of what to look for next ?? I can replace a little 3 or 4 termninal SMD device but not an IC - hope its not a trip to the Mother Ship.
Guess maybe I wil try AFSK today .
73 Hank K7HP
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