Help! Diagnosing a Haier LE46F2280 LCD TV

[bruceman200]

Hello everyone, any advice and opinions are much appreciated. Im going to try and give a lot of information so that maybe someone will just know for sure no question what the issue is!

So I got a Haier (junk brand dont ever buy from them) LE46F2280 as a warranty replacement for another that died after 6 months. This one lasted only about a year but its out of warranty now. Heres what I know:

I plugged TV into a pure sine wave UPS and around that time it started making a buzzing sound for about 2 minutes whenever first powered on. The pure sine wave should be better for it than regular so maybe that part is a coincidence not sure. The TV was on and I needed to change a light switch I just left it on and let the UPS keep it running. After I swtiched the circuit breaker back on the TV was still on but picture is messed up. I did some research that strongly suggested that the t-con board was the issue so I swapped with one from ebay but it had no effect. By the way it is now plugged into a regular outlet. The backlight appears to be fine but you can see the vertical lines and half the screen is black. After being on about 30 seconds the half that was on goes black as well. The pictures are when first turned on and after 30 seconds.

So does anyone know or have strong opinions about what is bad? As I understand I can replace the power supply board and mainboard but not the "panel itself". Thanks for all help!

[bruceman200]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

Bump

Anyone know what it means?

[bruceman200]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

bumpy, any thoughts and opinions appreciated

[tech2014]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

looks like a bad LCD panel, JMO.

[newtothis]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

That's a panel failure

[tech2014]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

looks like it. I have had similar ones and I was told it was most likely the panel. Could be wrong, just my opinion.

[newtothis]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

Looks as if the driver board has failed on the right side.

Just to check, remove a ribbon from the TCON and power one side only... then do the other. What do you get?

[bruceman200]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

Thanks for the replies! If the panel is bad I should pretty much trash it right (and sell the boards on ebay)?

Here are the results of the suggested test. First is with one t-con ribbon plugged in. It stays like that one half looking perfect and does not change. Second two are with the other ribbon plugged in, starts out all white then slowly goes to all black with a subtle line down the middle. What do you mean by the controller board? Final picture shows all the boards.

Also does anyone think there is a possibility of power supply causing this behavior because there is a slight buzzing I believe coming from it.

Thanks!

[RJARRRPCGP]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

So I got a Haier (junk brand dont ever buy from them)

I'm not surprised! Back in August, 2005, I got a Haier air con and it was working all well at first, then in 2006, IIRC, it ran too cold, kept freezing up. (ice build up) So I brought the GE air con that I was going to throw away back into the house and got it back on.

IIRC, I also got a report from one of the folks here about Haier having a nasty anti-consumer 'tude.

[bruceman200]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

IIRC, I also got a report from one of the folks here about Haier having a nasty anti-consumer 'tude.

When the first TV from them died after 6 months the RMA process was no joke the worst customer service experience I have had in my life. It took 2 months to get a new TV and they downgraded me to not having 120hz. I must have called 30 times and each time it was as if there was no record of my existence at all. Every day they were like oh we will call you tomorrow with an update and then come tomorrow no call and when I call the next day its just like "who are you"? I didnt fight the downgrade because I just wanted the living hell to be over. Seriously avoid Haier like the plague for all things.

[bruceman200]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

Hey newtothis, I was wondering what you think of the results of the test you suggested. Also what did you mean by the driver board? Is it one I can replace?

[budm]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

That is bad panel, when the bad side is connected, it kills the T-CON circuits, similar to this:
https://www.badcaps.net/forum/showpo...7&postcount=10.
You already tried new T-CON. I did too.

[tom66]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

Another bad LED-LCD TV panel.
I wonder what's killing so many of them. It never used to be this bad.
I hope OLED works better but I don't have much faith.

[newtothis]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

Had another LED-LCD today with failed panel... Was only bought in for visual diagnosis as it was only 4 months old and under warranty... They are failing hard and fast

[bruceman200]

Re: Help! Diagnosing a Haier LE46F2280 LCD TV

Yep that looks similar to what Ive got. So pretty much it is destined for the dumpster right? Maybe I can ebay off the cards.