NO VOLUME bars means your Display panel isn't even PRIMING (that's when the panel "gently lights up" before the video comes online)
That also means that either the X-sus, Y-sus or the Z-sus board isn't powering up the pixels....I doubt the power supply is faulty since you do get sound
Sounds like the video card went out. It's a technical thing and only tv repairman can repair. Some give free estimates and some repairmen waive the estimate if you allow the repair.
Answers & Comments
NO VOLUME bars means your Display panel isn't even PRIMING (that's when the panel "gently lights up" before the video comes online)
That also means that either the X-sus, Y-sus or the Z-sus board isn't powering up the pixels....I doubt the power supply is faulty since you do get sound
Sounds like the video card went out. It's a technical thing and only tv repairman can repair. Some give free estimates and some repairmen waive the estimate if you allow the repair.
The signal board is not oscillating. It is the board with rca jacks and rf connectors.