Samsung UE65JU6072

[SJX1290]

Hello, problem with Samsung UE65JU6072, stays on standby light flashes one long and 5 times short. I assume MB, as there is no voltage going on T-CON. Backlight checked, was one led not working and now solved-I replace that led, and when MB unpluged backlight turns on... So, anybody any ideas??

[nomoresonys]

Post some good straight on pictures of each board and one of the whole back, as to see how everything is connected. Check and report voltages on the powerboard connector. The one that has the cable going to mainboard. Check with tv off/standby, leave probes in place and power tv on, report both conditions. Negative probe on chassis ground, positive probe on each pin for testing.

[SJX1290]

Here we go, pictures of boards, checked main voltage 13V at power and 9V on standby, whem powered i can not with remote go back on standby, but you can se on led that is receiving signal...

[nomoresonys]

Ok, lets try this, unplug cable from powerboard to mainboard, retest those voltages, then plug cable back in turn tv on and test them, take note and report any differences. Any changes in 1,2,4,6 or 8?

[SJX1290]

ok,..main voltage 13 V stays the same; then pin1 FAilCont: unpluged 0,pluged3,28; pin2 AnaDim: unpluged 3,25 pluged 0,3; pin4 Od on/off: unpluged 3,6 pluged 3,2: pin6 PwrBlu unpluged 3,6 pluged 20mV; pin8 Power on unpluged 4,5 pluged 3,3

[nomoresonys]

Ok, nice job, I don't remember exactly what it means but some people here do. so lets ask together. Does the difference in fail count, PwerBlu, AnaDim and/or Power on mean something is wrong? To me PwrBlu looks wrong but not certain.