Vizio VS42LFHDTV10A 42" TV Shadow

[jason123]

Hi guys,
I picked up this TV from a friend who complained that it has weird symptoms. To describe, when unplugged for a long time, then plug back in, menu colors sometimes get smeared - like colors are bleeding outside the window. Left it plugged in and it started working fine all night. Today I turned it on and I could tell the screen was darker, and almost a dark shadow moved from right to left - then vertical colorful lines / white band shows on the left hand side of the screen - within a minute or two all goes away and the screen is great.. no issues.. could this be bad caps? I didn't see a kit on ShopJimmy

Help is appreciated.

[dskall]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

Pictures of problem

[jason123]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

Here you go.. I've had TVs that have panel defects (tabs issue) but this is not remotely close.. it does get better with twisting the TV, but yesterday when it worked fine, twisting the screen didn't do anything

[heavymachines]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

Most likely panel issue you may be able to apply pressure to tab bonds or neuter traces going to panel or butcher the side tabs but i'll let the experts chime in on that.

[jason123]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

Thanks heavymachines ... so I took it appart again.. and as soon as I did that I can't make it happen again - TV starts and functions beautifully. I took the front metal brackets covering the tabs off.. and I can't do anything to these tabs to make them cause the issue again.. I'm unable to find a tab that makes a difference if pressure is applied or removed.. I'm guessing as soon as I put the 500thousands screws back in, it will do the same again!

[dskall]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

Maybe something putting stress on panel

[jason123]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

It's like magic.. I take the screws off, and all is perfect.. I put the cover on, and it starts all over again

[attainteddragon]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

with the tabs exposed, run your finger over each cof chip and where each ribbon attaches to the screen. you will see which one alters the pic and might be able to rig it up with a varying amount of pressure around it to keep the pic clean.

[jason123]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

I have attempted that Attainteddragon... I couldn't get any reaction of moving my fingers across the tabs or doing anything to get this TV to misbehave As soon as I put the screws of the back cover in, then the fun starts

[attainteddragon]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

it has to be pressure related, so it is just finding the right pressure. did you apply pressure to the where it is bonded to the screen. i have seen several with failure points there.

[jason123]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

I did, both to the bonding side and the board side.. I really couldn't get it to misbehave with the cover off at all.. twisting or anything else that I've seen typical of bonding issues, is not having any effect

[vinceroger69]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

try using a hair dryer and aim hot air at the tab bonds it may show you which ones at fault im sure someone on here in a diffrent thread diagnosed bad tab bonds with heat

[jason123]

Re: Vizio VS42LFHDTV10A 42" TV Shadow

Not much luck.. I gave up - parted out and selling pieces..
Thanks All for the help