so anyone tried swopping out the oscillator crystal (x6 tink its marked no?) for a higher frequency one?
alos whats wiht the reistor values, i mean where did the 39k reisitor value come from? could it be higher?
(in line wiht chip u9 upo1111)
and laslty has anyone got or know where to get hold of the data sheet for the 2-bit VID buck converter chip u2, (up1509)
and for ref r211 is labeled a 3.65k -1% 04 and R212 10k 1% 04
And final why do the solder bridge to short out vid0 and vid1 ? then replace the matching reistor. Why not just replace the corresponding resistor to vid0 open and vid1 open? which i believe would be R139 default value set at about 22k. )
or did i miss something.
i try but i dont have the values and compents sizes -at the moment - to try.
alos whats wiht the reistor values, i mean where did the 39k reisitor value come from? could it be higher?
(in line wiht chip u9 upo1111)and laslty has anyone got or know where to get hold of the data sheet for the 2-bit VID buck converter chip u2, (up1509)
and for ref r211 is labeled a 3.65k -1% 04 and R212 10k 1% 04
And final why do the solder bridge to short out vid0 and vid1 ? then replace the matching reistor. Why not just replace the corresponding resistor to vid0 open and vid1 open? which i believe would be R139 default value set at about 22k. )
or did i miss something.
i try but i dont have the values and compents sizes -at the moment - to try.