Mitsubishi WD-52628 won't switch device input

SOURCE: Mitsubishi WD-52628 52" Inputs look like old cable scrambled channels

EVERYONE WITH THE BLINKING GREEN TIMER LIGHT ISSUE NEEDS TO PERFORM A "FACTORY RESET" WITH THE REMOTE. Power up the TV set then immediately enter "MENU 1,2,3" to get you to factory reset!!

SOURCE: Mitsubishi WD 52525 & PS 3

First make sure your hdmi cable is connected from the PS3 to the TV. Then go to netcommand, review, and make sure "monlink" is checked, click next, and finish. Select "monlink" from your device manager and turn on your PS3. If the screen is blue, go to the next step. Connect the PS3 via regular a/v cables to the front panel "input-3". Create a net-command device for input-3 as well. Switch to the input-3 device you created and turn on your PS3. Choose display settings, and change the settings to HDMI. Then click change. You'll have 30 seconds to hit device manager, change the device to "monlink", and let the PS3 unit know the setting has worked. From there you can configure. Good luck!

SOURCE: WD-52628 Mitsubishi - change inputs

We had the same problem. Luckily, we had a service contract, so it was serviced yesterday. The fix involved the service guy going through a "service menu" and resetting the TV that way. He was not "allowed" to tell me how I can access the service menu, however. I do plan to research this on the internet in case it happens in the future. It is basically a software/computer problem, and unplugging the TV isn't enough to clear it unless the TV is unplugged for "a long time." The technician said the length of time depends on the condition of your capacitors. Anyway, as a temporary fix, he showed me that you can go into the PIP mode. The device toggle for PIP apparently did still work with mine, so I was able to switch the device on the secondary picture and then switch it to primary, then toggle the PIP off. Good luck!