Don't know if anyone still follows this thread, but I contracted the "Black Screen of Death".
I have a Vizio GV47LF HDTV10A born in 2007 died late Dec. 2012
It did what has been described in other post. I opened it up visually checked the caps. I found the four caps on on the inverter boards (master and slave) swollen and leaking. Replaced all 4 and powered it up, no change. Started checking fuses found the F3 on the main bad, piggybacked a 1.5a and brought it back to life early Jan 2013. All was well until first week of Fed. the F3 fuse blew again. If I jump it the screen lights up blue. After reading this thread I'm thinking something more is going on.
I agree there has to be more going on. We first experienced the "pop of death" July 2010. Took the board to a repair shop and they confirmed it was the fuse. We've had to replace the fuse a total of 5 times. The last time the fuse blew was May 2013. Opened the tv and noticed burn marks near the fuse. Was still going to replace the fuse but from all the repairs, the contacts came off the board rendering it useless. Debating buying a new board to put this tv in a spare room.
Has anyone experienced the fuse blowing on a replacement (new/refurb) board?
Joined: 08 Mar 2006 Posts: 24006 Location: Langley, BC
TV/Projector: All of them!
Link Posted: Tue Sep 17, 2013 1:07 pm Post subject:
The only person that can help here is Macguyver, and he hasn't returned my emails from a couple of days ago, so I think he's out of town.
If you don't get a response from him, the solution is to either buy a new power supply or controller board off ebay to try, but I'd read all of the earlier posts here before you do. One guy chanced it and bought a power supply for $100, and that wasn't the issue. He then waited a couple of months until he found a controller board for another $100. he put it in, the set worked.... for about 6 weeks, when the new controller board died exactly the same way his original one did.
Controller board failures are very common on these Vizios (and other sets). These are all designed to be disposable, and unless you see obvious bulging caps on a power supply (common failures on Samsung and LG, etc), then you're not looking at an easy fix.
Joined: 02 Feb 2014 Posts: 1 Location: Phoenix, AZ
Link Posted: Sun Feb 02, 2014 4:38 am Post subject:
Notes for Vizio GV47L repair.
***Repair for Vizio GV47L FHDTV10A Main Board 3647-0012-0150***
Unit failed without warning. Screen went black. Popping sound (may have been speakers).
1. Plug in unit. ORANGE VISIO LOGO lights up. No sound or noise.
2. Power on using on/off switch. WHITE VISIO LOGO. Buttons on bottom right light up. NO PICTURE. NO SOUND.
3. CANNOT POWER OFF with switch. Must unplug to turn off.
No burning odor. No visible sign of component damage.
(looked at all boards. no damaged/missing components. or signs of failure)
no signs of overheating/bad solder joints on power supply, either inverter board, sound board, T-control board.
(Research shows this failure is common. presume main board f3 failure and possible voltage regulator(s) failed on main board.)
Main Board F3 blown. (piggybacked 1.5A replacement SMT littelfuse found on old hard drive PCB)
Link Posted: Fri Aug 12, 2016 8:08 am Post subject:
Hi I was given this tv from a friend who found it on a curb. Simple question to start...to remove the back panel, is it necessary to remove all of the small screws around the back edges AND the speaker at the bottom?
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