TV acting strange after cleaning screen

[tech2014]

I have a customer who is having an issue with a smartTV. His wife sprayed the screen with mr clean and now its acting weird. When he is using his remote to change from the on screen options, it seems to have a mind of its own. It will move on its own between icons on screen, or when he moves it left, it moves to the right. Any idea what could be causing this? It worked fine before cleaning so I assume its a screen issue.

[Hamie]

Re: TV acting strange after cleaning screen

more than likely she's used a cloth charged with static and damaged the touch sensitive buttons.

[tech2014]

Re: TV acting strange after cleaning screen

thanks. Is this something that is repairable or not?

[Hamie]

Re: TV acting strange after cleaning screen

Diagnose it first.
Unplug the buttons from the main board.

Use the remote and see if it still changes icons etc.
If not then you know it's the buttons.

Good chance someone will be selling them.

Alternatively use your ohm meter and check for differences in resistance.

Or of course, just tell the customer to use the remote and leave the buttons disconnected.

[tech2014]

Re: TV acting strange after cleaning screen

bu buttons I assume you mean the power/input/menu buttons on the bottom/side of the tv.

[Hamie]

Re: TV acting strange after cleaning screen

Yes

[tech2014]

Re: TV acting strange after cleaning screen

will the remote work without the buttons/sensor being connected to the main board?

[Hamie]

Re: TV acting strange after cleaning screen

well if the remote sensor isnt plugged into the mainboard its not going to work.

there will be a way to diconnect the buttons.. even if it involves removing the wires from the harness.

[diif]

Re: TV acting strange after cleaning screen

Or if the buttons are on the bottom, she sprayed to much on the screen and this has run down between the frame and is making sporadic connections.

[stj]

Re: TV acting strange after cleaning screen

Or if the buttons are on the bottom, she sprayed to much on the screen and this has run down between the frame and is making sporadic connections.

this.

i'v seen all kinds of damage from people spraying cleaner on the screen including rusty frames!

[tech2014]

Re: TV acting strange after cleaning screen

thanks guys.

[budm]

Re: TV acting strange after cleaning screen

It is also bad if it uses one of those screen where the tab bonding boards are at the bottom side in stead of on the top side of the screen, they get corroded and ruin the screen, seen that many times.

[tech2014]

Re: TV acting strange after cleaning screen

I hope thats not the problem budm. Thanks for the input guys.