Yep, it's toast. Thanks for helping me diagnose! I really appreciate it. Time to find another TV.

The fuse checks out OK. The cable connector didn't get wet, but the clip came out when checking it and it didn't go back together easily. The cable is ok, but the clip got banged up putting it back together. I believe it's OK, too.
Anything else I should look at?

I have tested all the on-board transistors, and none of them appear to be bad (tested for continuity between the base and the collector, and the base and emitter).

I took closeups in segments, and rotated them so they read upright. So in that case, they are oriented the opposite direction from the original single photo. There is overlap between photos....

Detail of the TCON board. Anything specific to check? Specific voltages? Thanks....

Thanks for that info. Are you able to identify the location of these components, the test points, or provide any of the specifications for the expected voltages? I have had difficulty finding any specifications for this model. I can send a detailed photo of the board if that would help. Thanks in advance!

Iotas, How does one replace this board? The connections to the LEDs are taped directly to the traces on the board, and are very delicate and finely calibrated (and there isn't much in the way to show proper alignment, either.) I also seems to me that peeling them off would likely destroy them. Any thoughts on how this is to be accomplished? Is there a specific chip that can be reflowed with a soldering hot air gun? Any other suggestions? Thanks for your input.

I have a Vizio D32f-E1 LCD TV that does NOT have a TCON board.

This TV recently went through some 'death throes' and now won't boot. The first problem that began to manifest was while watching tv, the screen would 'freeze', and the image would dim over a few seconds until it was very dark. HOWEVER, the audio of the show would continue as normal. I could power off the TV for 5-20 seconds, power back on, and the video would be normal. This would occur 1-3 times when the TV was first started, and would not happen again after the TV was 'warmed up'. Not ideal, but this glitch was manageable....

55 year old from Bellingham, WA, USA. Novice electronics hobbyist. I can solder well enough to repair things IF I can determine which component needs to be replaced. I can fix the obvious, but still in the dark when it comes to diagnostics. I'm learning, slowly....