My Toshiba 37HL67 won't turn on. The orange light keeps blinking and never turns green when I turn the power on. I was able to unplug and and get it to turn on after plugging in but that no longer works. Thanks

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. If blinks continue without any pause, the main board is faulty.

Toshiba Regza 37in - 37HL17
TV will not turn on - Yellow power ind. Light blinks three times...
Fixed with a firmware update (hard to believe, but true). Search Google for a file named: 2007SEN069.zip (don't worry if the page you find it on doesn't mention the 37HL17 - it worked fine). Unzip the file, and copy the 3 folders and 3 files to the root of a small SD card. The SD card MUST be 2GB or less in size (I used a 1GB card), and it MUST be formatted with FAT-16 (not FAT-32). Mine was pre-formatted as FAT (FAT-16). The SD port is on the back of the TV behind a cover plate near the power cable. You do NOT need to remove the back cover of the TV, just the small cover plate (1 screw). UNPLUG the TV; remove the cover plate; insert the SD card (prepped as explained above); Plug in the TV; Watch the yellow lights blink, then turn blue, then go dark; UNPLUG the TV; remove the SD Card and replace the cover; Plug in the TV; Yellow lights will blink a few times (this is normal); when blinking stops, turn on the TV and you should be good to go. :-)
Pictures attached are from a Toshiba software upgrade bulletin I found online.

i just had the same problem i took the top of the projector off and cleaned the color wheel and sensor seemed to have fixed the problem that is for now. seems to happen to me once a year on the dot but last time it was warranty. good luck hope it helps.

I have a wd-57731 The lamp light blinked orange. i replaced the lamp turned the tv on and the timer blinks green for one minute and then the lamp light blinks orange again. It won't turn on. Can you suggest anything?

1) Close the print head cover, and turn off the printer. While pressing the Resume/Cancel button, press the Power button. (Do not release the buttons. The LED lights in green to indicate that a function is selectable.) 2) While holding the Power button, release the Resume/Cancel button. (Do not release the Power button.) 3) While holding the Power button, press the Resume/Cancel button 3 times, and then release the Power and Resume/Cancel buttons. 4) When the LED stops blinking and lights in green, press the Resume/Cancel button 4 times. Finally press the Power button.

Remove the battery and try it on AC only. A failed battery can keep it from powering on.

Is the fan blocked?
If no air goes in, CPU could overheat.

42 inch Toshiba DLP. Was watching a movie and the screen went dark. The red light started to flash and kept flashing. any ideas 

Check the lamp door (with green on) ,.. both green and red blink - bad lamp. Green off, red blinks..Try unpluging for 2 minutes and retry - if no different (sorry, call a service person).

depends on how many times the orange light blinks also when you replaced the lamp did you do a timer reset? you can find alot of information on how to trouble shoot this www.infocus.com/support