Sanyo DP32648 32 in. LCD TV "led light aol com" Questions

LED on the front panel does not light. The fuse on the PS is good. It's conceivable that the PS is good and the mainboard is bad, Is there anything I can test for (e.g voltages at the PS) or look for

...led light, checked the fused and the fuse is good? Can't find any bad Caps? Well I spent some time, well alot of time trying to figure out what's wrong and finally did. The problem is a diode on the ...