Image issues and shorted power

[Ste03]

Hi all,

I'm currently having an issue with my dreamcast, I have just installed a dcdigital, pico psu and gdemu but I've run into an issue.

When I boot up the dreamcast I get interference on the screen, thinking it was a shorted pin following the hdmi mod I checked and double checked all the connections and nothing it shorted, I decided to remove the gdmu and put the original drive in just in case that was causing the problem, with the old drive installed the image issues for worse leading me to belive it was a power related issue.

Any way after much poking around I have found that one of the power rails has a short and the following caps are showing as dead short

CE102
CE103
CE104
CE302
CD502

After finding this short I lifted the positive pin of each of the caps one by one to identity the short but after lifting them all the short was still present.

I'm at a bit of a road block now as I can't work out what could be causing the short.

Ps I bought the dreamcast from Ebay and I didn't test the av before installing the digital as I didn't have an av cable to hand so I'm assuming this issue was present before any mods took place. The issue isn't with the psu as the short is there with the psu disconnected.

Any ideas will be greatly appreciated.

Thanks
Steve