The QCX was returned to me as "Not Working."
I set it up on a 12vDC battery and dummy load. Then used a signal generator and found that the QCX was receiving a signal. Also, using another radio (FT-891) I transmitted and the 891 received the QCX signal. Next I put in on the osciliscope and found that the output was 1V peak to peak.
At this point I checked Q1, Q2 and Q3. All were functioning properly.
Here I began checking the IC's. The pins I did not list here are within specs. The ones listed were not.
IC5 pin 5 (2.28) is actually showing 12v
IC5 pin 8 (11.67) is 2.55
IC6 pin 3 (1.63) is 2.66
IC6 pin 5 (1.55) is 11.67
IC6 pin 8 (11.67) is 2.66
IC7 pin 3 1.99) is 2.60
IC7 pin 5 (1.89) is 11.67
IC7 pin 8 (11.67) is 2.66
IC8 pin 3 (0.65) is 2.57
IC8 pin 5 (0.65) is 2.57
IC8 pin 8 (11.67) is 2.60
IC9 pin 3 (0.65) is 4.49
IC9 pin 5 (0.67) is 11.67
IC9 pin 8 (11.67) is 2.56
IC10 pin 5 (4.21) is 11.67
IC10 pin 6 (3.94) is 5.94
IC10 pin 8 (11.67) is 5.90
This is as far as I got. Sorry for the 1st email. I have torn the bicep in my left arm and probably took too many pain killer before I emailed.. Hi Hi
Your help will be most appreciated...
Thank You
Ron Pearson KA5HZV
