Hello Velleman support Team,
A couple of days ago I have assembled your Kit K8098 (Audio analyser). I think that I have made everything correct, because that was not my first PCB Project and I have experience with microcontrolers as well. I have cleaned and checked whole soldering work under the magnifiing glas to proove some shortcuts or other mistakes. I did not not find any.
PCB is Version PVPA20´2 without external XT Crystal oscillator.
The Problem is that by connecting Power only LCD Backlight is on but no Picture on the Screen. So I have checked further . Compsumption on 12V is 53 mA. Voltage on Board is 3,26 V. MCLR on DSPIC is 3,26V. So everything seems to be ok. BUT it does not work. So I have checked if there is some signals going from DSPIC to LCD with oscilloscope and I could not find any “life” on any Output. The only oscillations were on one OSC input of DSPIC in an irregular way.
Do you have any Idea how I could make it work ?
Thank you for your response