Hitachi Ultravision 53"- went blank

You have to hook it up to a standard Yellow/Red/White RCA jack. If it doesn't work on one, try another. Make sure you're on the proper input you hooked it up to on the T.V. If this doesn't work, try hooking it up to a different T.V. to rule out the Wii as the problem. Try hooking up a DVD player to the same RCA jack as the Wii was on the Hitachi. After all of these troubleshooting methods, you should be able to get your Wii properly hooked up.

Your lamp popped and needs replaced.

It is the bulb, fuze, power board, or video processing board. Only the bulb or a fuze is user replaceable. All others you should seek out a qualified service tech.

popping noise is a power supply problem.

On a projection television you will have to replace all three(red,blue,green) projection guns in a matched set, the reason is if you replace just the green gun, your picture will be over saturated with green light making your picture look green,because the new gun will be alot brighter than the red and blue guns.
With that said, repair will cost approx.$400+, I've heard up to$600. Good luck !

Sounds like the DLP lamp failed. You can decipher the Hitachi flashing red light. That should help to be sure.
The DLP lamp replacement is fairly straightforward and can be done with minimal tools

You can't. Either it came with them or not,.....yours didn't. It's like wanting to make a black & white tv into a color t.v. Although I used to get that all the time.....It's just a tube you pop in!!!! Sorry, the set has to be designed in the first place with that.

The Time Warner support walked me through getting my SAP turned off on the CABLE BOX.

check the solder around the area of the vertical IC. solder is either cracked or else cold. Cold solder appears as dull. Resolder anything that isnt shiny.