SNES region converter doesn't work

[nomoremod]

Hi,
I have bought an AD-29 Universal Adaptor Upgrade Version which is one of the best in the market as far as i know.
I have PAL SNES and wanted to play JP carts but there is no audio or video signal just black screen. I tried with PAL games but the same so the unit must be broken.
What could be the issue?
Thanks!

ps: i could go with the region mod which is not so hard to do but i'd like to preserve the original unopened shape of my perfect snes if possible (and hence my name..

I took 2 pictures of the stuff inside:

https://www.dropbox.com/s/wae2nmr7ckomgqo/IMGP7076.JPG
https://www.dropbox.com/s/t1m9rv71bkys2if/IMGP7077.JPG