I've got a Vizio VW42LFHDTV10A that has two issues (maybe related?). The first issue is that it sometimes will not power on the backlight. An on/off cycle or two always causes it to come on.
After it's powered on successfully, it will function normally for between 10 and 30 minutes, then spontaneously powers off (and LED vizio logo goes completely dark). The sound dies also. The TV cannot be powered back on until the power cord has been removed and replaced. When I remove the power cord, then immediately reinstall it, the logo glows amber like normal, and it can be turned back on. If the TV hasn't cooled off since the last time it spontaneously died, it will not stay on very long at all after the unplug/replug remedy.
I opened the case, and inspected the components visually. I did not see any visibly bulged, leaking, or popped caps, and didn't notice any burned components or signs of heat or arc damage. I had to put it back together so that I could have my living room floor back, and didn't do any more in-depth poking around. After the initial discouragement, I've now regained my drive to fix this thing.
I haven't been able to find any threads talking about this same behavior, and I'm wondering where to begin diagnosing. I have a Southwire 11060S multimeter, which seems like it would be enough to check things out.
Thanks!
After it's powered on successfully, it will function normally for between 10 and 30 minutes, then spontaneously powers off (and LED vizio logo goes completely dark). The sound dies also. The TV cannot be powered back on until the power cord has been removed and replaced. When I remove the power cord, then immediately reinstall it, the logo glows amber like normal, and it can be turned back on. If the TV hasn't cooled off since the last time it spontaneously died, it will not stay on very long at all after the unplug/replug remedy.
I opened the case, and inspected the components visually. I did not see any visibly bulged, leaking, or popped caps, and didn't notice any burned components or signs of heat or arc damage. I had to put it back together so that I could have my living room floor back, and didn't do any more in-depth poking around. After the initial discouragement, I've now regained my drive to fix this thing.
I haven't been able to find any threads talking about this same behavior, and I'm wondering where to begin diagnosing. I have a Southwire 11060S multimeter, which seems like it would be enough to check things out.
Thanks!
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