Tv does not come on, indicater light flashes in a series of 10 flashes

do you have a car alarm? sounds like miss wired alarm

get as new relay swich box and it should be ok if it dose not work check the steering indicator is not broken of inside the switch on the indicator arm

You need to do some troubleshooting to narrow down the problem first before buying the correct parts.
You need to inspect the power suply caps and DC output voltages.
It can be power supply, main board, backlight inverter boards shorted out and caused the TV to go into safety shutdown.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series

The projector is bloked, you need reset the lamp timer. Press and hold the VOLUME + buttom, then press the VOLUME - buttom. Hold both buttons down for 10 seconds.

how many times do the lights flash?

If the lamp is a known good one, the next most likely suspects are the lamp ballast/power supply board or a mis-aligned lamp door. There's an interlock switch which opens when the lamp door is removed. Try removing and re-installing the lamp and the door.

I found a copy of the service manual online, and the series of 10 flashes means that the High-Voltage has been stopped because of a problem with:

T8001 (FBT) rare short-circuit (D Board)
IC8002, Q8013, 8014, R8051 (D Board)

The above are listed as "Probable Cause Location"

If I still had all my test instruments I'd fix it myself, but not worth going out and buying them all again just to fix one TV :)

gib

If it is the power LED that is flashing orange 2times every five seconds , it suggests that the Lamp Cover was not reinstalled correctly. Remove and reinstall it