Polaroid lcd-2000

If you do not get ANY indicator light , then you need to look at the power supply for the 5vdc standby voltage first whic will be in the power supply module, this 5vdc is needed by the main board to turn on the rest of the circuit. If you do have even one light, the n the problem can be in the controller board not sending the signal to turn on the main power supply section. Look at the power supply first since it is one of the part that fails most, next to the backlight board.
http://en.wikipedia.org/wiki/Capacitor_plague