Because it's difficult to get the SYY1930 dc to dc ic, I have found a solution that works even better.
By replacing the U1101 ic with the TPS54329EDDA

You only need to replace the ic, and a few resistors to get the right output voltage.
More about it, see image..

(Thank you to Johnny_B for publishing it)

All the best about hardware/support from Johnny_B, link :
http://jb8a8f8.com
http://jb8a8f8.nl


Attachments
Dm800se-estar-u1101-replacement.jpg (31 downloads)

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DM8000, DM800se, DM500HD, DM800HD, DM7025, DM7020s, DM7000, DM500s
VU+ Solo, VU+ Uno, VU+ Duo, Kathrein UFS910
Tivusat, TNTSat, Fransat, SSR/TSR, BBC1-2-3/ITV
DE-OpenBlackHole 1.4 image : http://www.openblackhole.com/