JYE Tech Forum

Hi slantsix, The -5V is produced by the circuit of Q1, Q2, and U4, in the right side of the "Power Supply" section.. You need a square signal at the base of Q2, check with a scope. That square signal is produced by the processor, it is VGEN, check that one too. You also need the +8.6V at t...

Hello Everyone, Last fall I got a kit, assembled it, and it worked perfectly. However, my joy was short lived, soon the scope developed a DC offset with grounded input and noise on the displayed signal. When I got the kit I also got an acrylic case, and my guess is that by handling that plastic case...