the source code of the card: PLLM-M702A.

The monitor arrived functioning normally always presenting the message of proper resolution in 1920 by 1200. After a few minutes running, the image disappears and the led on the power button flashes.
The message of proper resolution 1920 by 1200 always appears independent of the resolution I choose. It seems that triggers the protection circuit of the circuit. It may also be the voltage that feeds the bulbs are above normal that triggers the protection circuit.

The exciter of output high is used integrated AOP605 (two integrated)

Tried replacing the bulbs, but the problem continues.

Try to clear data EEPROM IC105 - AT24C512
record in the data buffer FF or 00

you mean, clear the eeprom and then rewrite

put clean eeprom

I believe I have solved the fault with the monitor replacing the smd capacitor C306 which should be 10nF for another of equal value because after the exchange, the monitor was turned on for several hours without presenting the problem cited.

unfortunately I will have to continue to examine this monitor, the problem remains