2 top lamps and lock is blinking

The blinking light is typical of a failed lamp and they last commonly between 2-5 years tops in these sets. You should replace the lamp. The link below is to the lamp for your set.

Replacement Lamp: Sony KDF E50A10 KDFE50A10 Lamp with Housing XL2400

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_70466cb634a57543

Try unplugging the machine for a few hours to rest the code on the board.

If you have never replaced the Lamp,Then it will be the Lamp.
Mats Electronics 1-800-628-1118
Fox DLP and LCD Lamps and Bulbs 1-800-227-5369

Red and Green bliking with no picture means a service problem. But you might try cleaning the filters first and being sure that nothing is blocking air flow through the projector. Red status solid means replace the lamp, but that doesn't seem to be the indication.

You have shorted out transistors in the backlight inverter circuits.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed DELL monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Replacement bd: www.lcdrepair.us

http://www.electronicrepairguide.com/dell-E153Fpc-lcd-monitor-repair.html

if the fans come on HIGH immediately, the main board is bad. the lamp could also be bad,check the cables on the lamp to make sure they aren't melted.

yes replace ac adapter. light on ac adapter does not blink

what's the status of the other link lights? the numlock an scroll lock? are they bliking or steady on? try to eseat the memory modules

the number of blinks determine the problem:

Environment Over Temperature- 1 long blink / 1 short blink
DMD Over Temperature- 1 long blink / 2 short blinks
Lamp Over Temperature- 1 long blink / 3 short blinks
Fan1 Locked- 1 long blink / 4 short blinks
Fan2 Locked- 2 long blinks / 2 short blinks
Fan3 Locked- 2 long blinks / 3 short blinks
Fan4 Locked- 2 long blinks / 4 short blinks
DMD Initial Fail- 3 long blinks / 1 short blink
Lamp Initial Fail- 3 long blinks / 2 short blinks
Ballast UART Error- 3 long blinks / 3 short blinks
Temperature Sensor Fail- 3 long blinks / 4 short blinks
Inter Lock Open- 4 long blinks / 1 short blink

any of these will result in lamp off and shutdown.

If you have your owners manual Read where it says Lamp ,If you have never replaced Lamp more then likely it is Lamp.