dramirez
Well-known member
Fan doesn't even turn, does faint noises, like it's trying to rotate. Voltages: 0.038 volts instead of 12, 0 instead of 5, bad power supply? I don't think so! R19 and L3 were very hot (over 50C, 122F). CR3 was removed, tested bad.
With CR3 removed the fan works and normal voltages are read. Replaced CR3, fan doesn't turn again. I'm planning on replacing CR2 and Q2, but I can't find a replacement for BU406 in stock on DigiKey (BU406G)
Could it be that the flyback is bad too? How can I test it?
Thanks for your help, guys!
With CR3 removed the fan works and normal voltages are read. Replaced CR3, fan doesn't turn again. I'm planning on replacing CR2 and Q2, but I can't find a replacement for BU406 in stock on DigiKey (BU406G)
Could it be that the flyback is bad too? How can I test it?
Thanks for your help, guys!