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A burned out resistor means too much power has flowed and burned it out.
you need a schematic to find the resistor value but also what other parts have blown as I can guarantee just replacing the resistor would just mean another burned out resistor.
It does sound like the backlight inverter board went out, but you should check the main power supplymodule first to see if it has 24vdc to feed the inverter board. Most power supply connector will be labeled with the voltage values, check that first. Most inverter board also has surface mounted fuses. Power supply is easier to get to than the inverter board, look for bad capacitors or burnt parts. http://en.wikipedia.org/wiki/Capacitor_plague
If it is in the power supply better check the rest of them. most should all be the same value so you may be able to get the value for the burnt one from that. good luck
R106 is a .5 ohm. It is green,black,gold, and silver. I believe it is a 1/2 watt resister
R103A is a 27 ohm and R108A is a 470 ohm resister.I have no schematic.
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