Thanks for the question. My name is Dan.1. Does the backlight come on?
2. Is the green light flashing?Kindest regards,Dan T.
Check the 24VDC line going from the power supply to the inverter. Let me know.
Scratch that. Most of these Sanyo models have IP (inverter/power) boards... so there wouldn't be a separate line.
Are there any bulging or swollen capacitors on the power board? Pay particularly close attention to the tops... are any of them not totally flat?
Turn the TV on, then hold a flashlight up to the screen and look for images, movement, etc. It would be very faint. You might also wish to make the room as dark as possible. Let me know.
Ok, thanks. There are 3 possible issues here.
First, you could have a bad LCD panel. I don't think this is the case, and it would be pretty rare... but it's possible.
Second, you could have a bad power supply. This would also be unlikely since your standby line is good.
Last, and most likely, you probably have a bad main board. This is really the only thing that could cause your issues if the standby line is good.
The bad news is that Sanyo parts are notoriously hard to come by... and they're awfully expensive. Usually a bad main board is too expensive to be cost effective. If you want, though... get me the part number from the board and I'd be happy to see if any of my suppliers have one.