vu+zero

[spider69]

Hi fella's looking for a bit of help and input. I have a vu zero. was all working fine till one of my kids pulled out the plug by mistake. when plugged back in all I get is a blank screen saying no signal have checked hdmi lead and dose work on an other box but when I use it on vu zero I get no signal!!!!
many thanks for any help or input.
ps its not a bad little box :)

[sonic1]

Have you taken the top off to check the tuner has not come loose ?