How do i reset the lamp timer on my sony kdf-50e2000?

SOURCE: sony wega kdf-50e2000 standdby light blinks 8 times

8 BLINKS B -10.5 IS OVER VOLTAGE (B-BOARD) If your a novice call Sony or a Sony authorized service center.

SOURCE: sony kdf-50E2000

bad lamp driver, if you have already replaced the lamp. If not, try replacing the lamp WITH AN ORIGINAL SONY LAMP!. Don't waste time with cheap replacements, you get what you pay for.

SOURCE: Discoloration after replacing the lamp on my Sony KDF-50E2000

you have a bad light engine.

SOURCE: no picture no sound on my sony kdf-50e2000 tv

BECAUSE ON THESE SETS IF THE LAMP DOES NOT LIGHT THEY SHUT DOWN.

SOURCE: Sony Grand Wega KDF-50E2000 with a red stripe on top of Picture

Call Sony...... sounds like an optical block issue. If it is, they will fix it free of charge. It could be pretty expensive, like $1000 parts and labor. Sony extended the warranty on this model, I just had mine fixed a week ago. Hurry as the warranty is only good until June of 2010 :) Good Luck