diamadiss
Member level 1
Hello, I have an ATX power supply and it has a chip with the marking "2003 - BA234980509H". It not work at all.. even the fan not start. I replace al the electrolytic cap and I check all the resistors but nothing and also I replace all the transistors. I suspect that this chip is the problem because I think this produces the PWM pulses. I can't find any datasheet for this or some information or a replacement. Please does anyone knows something or have a solution to suggest me?