Amiga 1200 no Video out put

[Pior]

I have an amiga 1200, it is a rev. 2B motherboard with 3.0 roms stock and all caps were changed and no leakage or damage to the board. I am using a good power supply which works on my other 1200 and 600 just fine.
The issue I have is It boots up fine and floppy drive & harddrive read but I do not have any Composite or RGB output. I have a 50Hz VSYNC signal but nothing coming out from the the U30 Video DAC from pins 25-AG, 26-AR, or 27-AB. I check the three with a volt meter all three are 0V. I did check the 5V & GND pins to the chips all are good as well. I thought maybe the Video DAC was bad and replaced with a new one but same issue no change. I did check all the traces for continuity from the U30 Video-DAC and all checked out good as well.
I put the DaigRoms 1.2 in and used Ser cable to my PC with Putty since I was not getting any video out of my 1200 and performed all the test everything seem to check out good on the board.

* Another thing I notices is if I put an expansion 4mb card on it the power light goes from dim to bright but the Floppy drive or Harddrive does not respond, seams to work find with out it

* Also one time the kick start screen came up but was very dark I could hardly see it was so faint, but never got it again.



Any help/direction would be great

[cpiac64]

vref is 1,2volt?

check r216 and c216