If your lamp is more than a few years old, I'd start there. The second issue has to do with fans. They should all run when the projector is turned on. Any one of them that won't come up to speed will shut down the unit. If the air flow is obstructed by dust, the thermal fuse could have blown.
Knowing the red blink code pattern will help to narrow down the issue, Google Sony (your model number here) blink codes and you should get info on what the blink patterns mean.
Once you determine what part is bad, google the part and you should come up with suppliers that will sell you what you need.
If your color is turning green, yellow or blue, you may have an optical block issue that you're not likely to get parts for on the open market.
Mitsubishi TV troubleshooting
Here's something that might also be useful. After you turn on the set, and get the regular red blinky lights, hold down the Device and Menu buttons together for about 5 seconds.
The Power light will start to flash in a two digit sequence.
For example, 3 flashes, then 7 flashes = 37.
Here are the error codes, and the corresponding problem:
12 = No error detected, check power supply.
32 = Lamp Cover is open.
33 = Air filter cover is open.
34 = Lamp abnormality
36 = Light Engine (DMD or Lamp Fan stopped)
37 = Exhaust or Lamp Ballast Fan stopped
38 = Lamp Temperature High
39 = DMD Temperature High
41 = Short is detected
44 = DVI cable between FMT and Engine disconnected
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