what to check when you want to put a different chip in same PSU?
For example replace ob2269 with Sg6846 - the internal schematics look similar enough
there is one diode and divider at FB input , but Zcs and Zfb differ too much between the two ?(12 and 5.5 kohm compared to 40 and 9 kohm so the component values in the rest of the PSU circuit need to be changed?)
https://cdn.badcaps-static.com/pdfs/...2d6a23c015.pdf
Ld755s is a better match when it comes to Zcs but it has a extra diode at FB input
For example replace ob2269 with Sg6846 - the internal schematics look similar enough
there is one diode and divider at FB input , but Zcs and Zfb differ too much between the two ?(12 and 5.5 kohm compared to 40 and 9 kohm so the component values in the rest of the PSU circuit need to be changed?)
https://cdn.badcaps-static.com/pdfs/...2d6a23c015.pdf
Ld755s is a better match when it comes to Zcs but it has a extra diode at FB input