morning i have a samsung le40r74bd backlight problem, which in i thought i'd fixed it, but fault as appeared again, picture will come for about 20 minute, then backlight off, i found 2 swollen caps did factory reset ran test for 11 hours was ok, when out came back switch on 15 minutes backlight off again, psu is bn44 00134a any pop a service manual on please, thanks for your time
shaun
