Some kind of weird hdmi surge took out my cable box hdmi output, the hdmi through my onkyo receiver and Mitsubishi wd-65c9 tv. Everything else associated with the components works fine. I tried all the normal stuff including unplugging and initializing the tv. No go. leads me to DM board? After initialization the tv will recognize a connection on hdmi-2 and 3, but will not work. The hdmi-1 port nothing. That is the one the surge came through (the one hooked to the receiver). Would like to fix myself if I know what to look for. Any help would be appreciated. Thank you, Mike

SOURCE: Mitsubishi HDMI connection trouble

I have the same issue with my 73". Rather then going over all of my connections and equipment I'll just say htat I feel your frustration. I have been on the phone with Mitsubishi directly and it appears as though they have a free software upgrade that should address this problem. If you call 1-800-332-2119 and press 4 in the menu you will get someone to help you. Be patient. They will make you go through all of the fixes that you have already tried. They will mail you a flash drive that goes right into the front USB port of your TV. I hope this is of help. Good luck.

ret4good

SOURCE: hdmi 2 wont work on mitsubishi wd-y65

It sounds similiar to a problem we've had with ours, all components would work in hdmi 1, but hdmi 2 would only work intermitently. They ended up replacing the digital board (fortunately we have the extended warrenty, I'm sure it's not cheap). Sorry hope this helps.

SOURCE: Hi! We have a Mitsubishi

Hi Julie,
Restore the unit first to "factory settings" by following the steps below.
> Enter the service adjustment mode by pressing "Menu - 2 - 4 - 5 - 7"
> Press " 0 " when in the service mode. Three choices will appear at the top of the screen.
Scroll down to "Restores factory set values" by pressing the Up & down keys then press "Enter"
Try the unit. Let me know if the symptoms still persist.
Regards,
Jdvillanueva