Friends,
I apologize if this a duplicate but I never saw the message nor any response.
I am struggling with my QCX kit.? I have finished construction and tried to align the radio.? I get a single row of LEDs across the top.? The contrast adjusts normally.
I spent some time measuring some of the voltages in the manual.? I did get some anomalous results.? The measured value is first, the manual value is second.
C45 1.29V? -? 2.44V
C46 0.78V? -? 2.30V
LCD Pin 4 3.48V? -? 4.92V
LCD Pin 7 thru Pin 10 4.88V? -? 1.08V
LCD Pin 11 4.88V? -? 0.00V
LCD Pin 14 4.88V? -? 0.00V
I have carefully checked my soldering work several times under a high power magnifying light and lens.
Could this be one of the bad chips mentioned recently?
Any thoughts or suggestions would be most gratefully received.
Jeff
WV9X