here's a quick video showing where the clock chip is located in the CDI model 910, as well as what the voltage is and the hertz frequency of the crystal. you should be able to use the crystal out of the top of the I see expansion module that it comes with but if you break it you can just get that Crystal. be careful when cutting off the top module connected to the ic, it's only held on on the sides and not in the middle so just trim the short sides of the plastic housing and you should be able to come right off and leave the contacts in it, otherwise you'll end up prying them out like I did and have to drill down into the silicone of the chip to get to the contacts and solder them on and that's a pain. in my test rig I just kind of crossed the wires over the IC and hot glued them in place so they don't pull off of the contacts since the solder joints are so tiny, I suggest you do the same if you want to make sure they don't come loose it's just a precautionary hot glue Dot. if you want to see more of the HDMI upscaler module that I installed in my test rig, that can be found here http://www.cdinteractive.co.uk/forums...