Thanks very much for all your reply. Yes, it has 2 HDMI input but i couldn't find the on/off finction from the menu. Any of you are using Z4000? If so, can you adivse how to turn off the video and switch to HDMI?
Thank you so much and look forward for your reply!
Thank you so much for all your advise, however, i have tried all your suggestions but still doesn't work. So i guess i have to bring it back to the shop for further checking. Pleasae do let me know if any of you have other solutions! Thanks!