Re: Barco LCN-42 No Power
That looks like the Source resistor for the MOSFET next to it, more likely to have Source to Drain shorted out, since the voltage drop on this resistor will be use for the Overcurrent feedback for the SMPS IC, if the value is too high then it will cause the power supply to shutdown too earlier, if it is too low, then it will not go into shutdown when the current is already exceed the current limit of the MOSFET and other power component. I would think it will be about 0.20 Ohm MOX type 1W (you can calculate the Wattage if you know how much current is expected to flow through this resistor). By the way, I can see a lot of failings solder joints.
That looks like the Source resistor for the MOSFET next to it, more likely to have Source to Drain shorted out, since the voltage drop on this resistor will be use for the Overcurrent feedback for the SMPS IC, if the value is too high then it will cause the power supply to shutdown too earlier, if it is too low, then it will not go into shutdown when the current is already exceed the current limit of the MOSFET and other power component. I would think it will be about 0.20 Ohm MOX type 1W (you can calculate the Wattage if you know how much current is expected to flow through this resistor). By the way, I can see a lot of failings solder joints.
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