Re: Velodyne SMPS, power transformer

I fixed my Velodyne and made the SMPS scematic. Here you'll find how:
[url]https://www.badcaps.net/forum/showpost.php?p=1245700&postcount=26[/url]Re: Velodyne SMPS, power transformer...count=26[/url]

Re: Velodyne switching PSU ?

I fixed my SPS. Here are some recomendations and my board scematic.
1. You have to replace all the electrolytic capacitors even if they look good. Note that C7, C10, C12, C13 and C14 must be LOW ESR. At this step just remove them from the board and go to the next step.
2. Check MOSFETs Q1 and Q2. Replace both even if just one of them is bad. Check gate resistors R7 and R9 if your MOSFETs are shorted.
3. Check the diode bridge BR1 and all the diodes including zener D3 and D4.
4. Check the NTC mounted on radiator. It must be shorted....