Hi all,
Thank you for the advice!
I’ve got this display working again, it seems to have been the 47nf 250V metallised film capacitor at C476 failing short-circuit, which also caused R475 to overheat. I’ve replaced C476 with a 47nF 630Vdc polypropylene capacitor and R475 with a 15kR 5W resistor, and adjusted the flyback HV, contrast, and brightness controls to give a nice image.
Many thanks,
Adam
Thank you for the advice!
I’ve got this display working again, it seems to have been the 47nf 250V metallised film capacitor at C476 failing short-circuit, which also caused R475 to overheat. I’ve replaced C476 with a 47nF 630Vdc polypropylene capacitor and R475 with a 15kR 5W resistor, and adjusted the flyback HV, contrast, and brightness controls to give a nice image.
Many thanks,
Adam
Statistics: Posted by TheMightyMadman — Mon Mar 10, 2025 12:06 pm