I have a WD-73640 DLP. The lamp went out (blew a hole in the glass of the lamp) when I was using Input1 (composite) to watch a show. After replacing the lamp and cleaning out the dust from the optical engine, the input1 does not show up when input is pressed on the remote. Input1 is greyed out when looking in the setup menu. All other inputs work. Any ideas? Is there a fuse on the power PWB or main PWB that would cause this problem? Thanks, Tim

Yes. It appears that your lamp is nearing the end of its life. You will need to replace it. Here is the part number. I hope this helps.

These lamps should last around 5 years so I can understand your frustration.

Normally the lamp life is shortened by heat issues? Do you have enough space above, to the sides and back to let air flow in and out of the television? Are all fans working? Are the fans staying on for a while after you turn off the TV?

If you're using a power strip to turn off the TV the fans can't run when the television is turned off and it won't cool properly.

The first thing to replace is the lamp. Google your model number and "lamp" and you'll find several sites that sell them. It isn't difficult to replace yourself and isn't very expensive. Good luck.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.
Check the lamp ballast too.

no buy a blue ray player with hdmi cable!

You need to replace the 4719-001997 DLP Chip. this should solve the issue.
This chip can be expensive so look around before you purchase. This is a common problem with these TVs, both white lines and white dots. You can find out how to replace the chip by going to this website: http://www.fixyourdlp.com/2012/09/04/solve-the-mitsubishi-wd-73640-white-dot-problem-with-a-new-4719-001997-dlp-chip/.Hope this helps

9 PERCENT IS YOU MAIM BOAR

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.

Tv "LAMP" LED light indication on the tv frame word light up or blinking LED light.Check the tv projection Lamp first.The tv projection Lamp might litterly broken into glasses sharts itself.The tv projection lamp still intact,still should be change too though.After the tv projection lamp has been change the tv should work now.If still have problems the board that call the Balast board probally dead too.Becauuse this Ballast board only jobs are to help to ignite and keep tv projetion lamp light up and to work only.

Don't know what brand or model but sounds like you have a dlp set and the lamp blew, replace the lamp and should be ok.