After a recent thunderstorm my Sharp LC-42D64U flat panel no longer recognizes any of the HDMI calbes that were previously used. All other ports seem to be working fine. Any help is greatly appreciated.

In your TV, go to Menu, Settings and then turn on the HDMI port. Hope this helps Fix Ya up.

If your Tv has this many HDMI ports it will have a menu to access each one separate. Go to your Tv's settings menu and look for your HDMI ports to use.

On the Vaio:
right click volume on system tray and select playback devices
select hdmi/ sdip as default and then in the properties deselect dolby

If you don't have those options you may need new drivers installed on your Vaio. Do you have windows xp? The driver can be found here: support.vaio.sony.co.uk/downloads/info/info.asp?site=voe_en_GB_cons&url=Vaio/Original/AR2_Drivers.zip&ip=RAID_AR21.htm

If you have vista the driver can be found here:
support.vaio.sony.ie/downloads/updates/updates.asp?site=voe_en_IE_cons&c=0&s=VGN-AR&m=2418&os=7&osl=1

On the television make sure you are on the right input. Press menu--setup--hdmi setup--audio select--digital

Hope this helps

I would contact someone local who deals home theater They would know

try going to menu and center the screen both vertically and horizantal, the manual should help

Mainboard damaged and need to be replaced

Sorry to say, it's pretty much toast. The screen is most of the cost of an LCD TV, so if it gets physically damaged you're better off replacing the set.

I had the same problem.

All I did was unplug the standard cable wire from my tv and used RCA cables to connect my TV to my digital cable box the the Input 1 jack in the back. It also increased the video quality.

Sounds like a failure on the main or av pwb in the TV. Do you have another component such as sat. rec or cable box to try with hdmi?

these sets are notorious for bad inverter boards and bad video processor boards.Sharp is well aware of the problem,and will fix the units if you push the issue.