Sharp Aquos LC-60LE600U

[Ag3nt_X]

Won't power on.

Chevron comes on only if unplugged and plugged back in. When screen bl tries to come on TV shuts down and power button has no effect.
Suspect bad string of LEDs but how do I isolate bad string when power won't stay on to read voltage?

[geeforce]

Re: Sharp Aquos LC-60LE600U

Disconnect the two tabs on bottom of tcon one at a time, turn on set with just one connected and see, then repeat with the other side only connected.