Mitsubishi WD-60735 Control issues

Press the System Reset Button which is on the RHS on control panel
If the TV fails to respond to the remote control, control panel
buttons, or will not power on/off, press the SYSTEM RESET button on the control panel.
The green LED on the front panel will flash quickly for up to one and a half minutes. When the green LED stops flashing, you may turn on the TV. Recent setting changes you made before using SYSTEM RESET may be lost.
If that fails try pressing and holding the menu button for 8 secs

user manual is here:
http://content.abt.com/documents/19051/WD_C-735-736-835-series_om.pdf

A common issue and it may be your problem is dust and dirt inside the unit---the set intakes air from the front and exhausts it out the rear==I have seen several of these sets where removing rear cover and taking stthe set outside and blowing it with a air compressor clears the issue.

Fans and other critical items that get clogged or coated with a moderate amount of dust will cause this issue.

Televisions covered: Mitsubishi DLP High-Definition Televisions:
C Series: WD-60C8, WD-65C8, WD-73C8
735 Series: WD-60735, WD-65735, WD-73735
736 Series: WD-65736, WD-73736
835 Series: WD-65835, WD-73835

Here's an online version of your televison's (94 page) "Owner's Guide":
http://www.mitsubishi-tv.com/pdf/ownersguides/WD-60735.pdf

It sounds like the lamp in your "Mitsubishi Lamp-Cartridge" blew.

If your TV remains under warranty, you'll want to call Mitsubishi at 1-800-553-7278, and you'll need to have (a) Mitsubishi Model number, (b) serial number, (c) TV purchase date, and you'll have to ship the old lamp module back to Mitsubishi so that:
"All lamps replaced under warranty must be returned to Mitsubishi where they will be inspected for defect verification."

Return old Lamp-Cartridge to:

Mitsubishi Digital Electronics America
1001 Cherry Drive, Suite 2
Braselton, Georgia 30517

If you have trouble finding your TV's information, you need better "Warranty Management". Warranty Management can be done with software, or on paper. You may even choose to toss all your Owner's Manuals into a box, with the receipts. In case anything malfunctions/needs to be reprogrammed/reset then the manual & spare parts/cables (in a large Zip-Loc(R) baggie or two) can be quickly located and consulted.

If you television happens to be out of warranty, a nice (expensive) new lamp module can be ordered from Mitsubishi by calling 1-800-553-7278, or by ordering online at http://www.mitsuparts.com.

Refer to pages 75-76 of your Owner's Guide for complete Lamp-Cartridge module replacement instructions (with nice illustrations).

Your TV's Lamp-Cartridge part number is: Mitsubishi 915B403001

Here's an online source for the Mitsubishi 915B403001 Lamp-Cartridge:
http://www.dlplamps.com/products/mitsubishi-dlp-lamp/mitsubishi-915b403001.html?gclid=CLzb6ciaiq0CFQdN4AodZkMonA

Note that with the dlplamps.com offerings, you can purchase the lamp only for $109, or the entire lamp-cartridge module for $129. So you can save yourself $20 if you're handy. Remember to keep all fingerprints off the lamp glass element - this small amount of oil will weaken the glass, and cause premature failure of the lamp. In the event that you get a fingerprint on the lamp glass, erase it thoroughly with rubbing alcohol. Alternatively, one may prevent fingerprints with latex gloves (make sure you haven't an allergy to latex, though).

If the reason that the lamp blew turns out to have been a clogged Lamp-Cartridge Filter (once you have the Lamp-Cartridge out of the TV and in your hand, you'll be able to easily see the mesh filter), then place a regular PM (Preventative Maintenance) of this filter on your calendar.

have you set your settings for 720p on your xbox then turn the tv on to the right input then turn the xbox on? i had that issue with a previous tv? does the lights on your xbox just spin around?

The only way to reset on a lock code on a Mitsubishi TV is going to be reseting the unit. I believe this unit is reset by holding down the power button for 10 seconds while the unit is turned on. As for the remote being the only way to turn the TV on, does the button on the front of the unit stick, or seem 'smushy' when you press it?

Sounds like your lamp/bulb is about ready to die. Here is a google shopping list for some replacements if you choose to DIY. http://www.google.com/search?q=Mitsubishi+WD-60735+replacement+bulb&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a#q=Mitsubishi+WD-60735+replacement+bulb&hl=en&client=firefox-a&hs=XxY&rls=org.mozilla:en-US:official&prmd=ivns&source=univ&tbm=shop&tbo=u&sa=X&ei=k7KtTZP4A4jk0QGYm6jHCw&ved=0CHwQrQQ&biw=1366&bih=650&bav=on.2,or.r_gc.r_pw.&fp=30e0fb8dc28dda8
Also if you need help on the DIY just come back. But a detailed reinstall can be found in the manual starting on page 75 which if you don't have can be found here:http://www.mitsubishi-tv.com/pdf/ownersguides/WD-60735.pdf. Also on that page is a part number and phone number to get replacement direct from Mitsubishi. Good Luck!

This is your digital module going bad. The only way to repair this is to send your Light Engine Cube Assembly to Mitsubishi to be refurbished. I believe they charge the consumer 300.00 to rebuild. I have seen 3 just this past week. All DLP sets are failing at a high rate now.

Did you recently replace the lamp? If you did then it might be the new lamp. I mistakenly bought an aftermarket lamp to replace mine and it would not work consistently. Apparently if it is not an Mitsubishi original lamp it has issues, because after I replaced it with a Mitsubishi lamp it worked perfectly fine.

Good Day,
It sounds like the TV has a bad COLOR WHEEL Part # 938P137010. 99.9% sure this will solve your noise.

Good Luck, Big Irish.

replace the color wheel p/n 938P137010 MODULE-COLOR-WHEEL